CN104836507B - Permanent magnet synchronous motor alternating-axis and direct-axis inductance parameter off-line identification method and system - Google Patents
Permanent magnet synchronous motor alternating-axis and direct-axis inductance parameter off-line identification method and system Download PDFInfo
- Publication number
- CN104836507B CN104836507B CN201410049015.7A CN201410049015A CN104836507B CN 104836507 B CN104836507 B CN 104836507B CN 201410049015 A CN201410049015 A CN 201410049015A CN 104836507 B CN104836507 B CN 104836507B
- Authority
- CN
- China
- Prior art keywords
- msub
- permanent magnet
- magnet synchronous
- synchronous motor
- mrow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a permanent magnet synchronous motor alternating and direct axis inductance parameter off-line identification method and system, wherein the method comprises the following steps: controlling the permanent magnet synchronous motor to be static and the winding current of the permanent magnet synchronous motor to be zero, and respectively loading a first voltage vector to the winding of the permanent magnet synchronous motorSecond voltage vectorAnd a third voltage vectorSampling permanent magnet synchronous motor respectively at first voltage vectorSecond voltage vectorAnd a third voltage vectorThe current under action, and calculating to obtain a first current variable I1And a second current variable I2(ii) a According to the DC bus voltage udcFirst current variable I1And a second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd the direct axis inductance parameter Ld(ii) a The method has small calculated amount, and effectively solves the problems of large calculated amount and difficult realization in the existing permanent magnet synchronous motor parameter off-line identification.
Description
Technical Field
The invention relates to the field of motors, in particular to a permanent magnet synchronous motor alternating-axis and direct-axis inductance parameter off-line identification method and system.
Background
Permanent Magnet Synchronous Motors (PMSM) are widely used in the fields of numerical control machines and electronics and electricity due to their advantages of simple structure, reliable operation, small size, low loss, high efficiency and the like. Permanent magnet synchronous machine parameters have an important influence on their application. The parameter off-line identification of the permanent magnet synchronous motor is mainly realized by controlling an inverter to convert the permanent magnet synchronous motor into the permanent magnet synchronous motor before the permanent magnet synchronous motor operatesApplying different forms of voltage and current excitation to the motor winding, detecting the voltage and current excitation response of the permanent magnet synchronous motor, and calculating corresponding permanent magnet synchronous motor parameters according to the relation between the excitation response and the motor parameters, or adopting a certain fitting algorithm to identify the permanent magnet synchronous motor parameters: the d-axis (rotor magnetic pole axis) of the permanent magnet synchronous motor is obtained by adopting a pulse voltage impact method and applying direct current, and if the axis of the permanent magnet synchronous motor cannot rotate, such as a band-type brake machine, the d-axis of the permanent magnet synchronous motor cannot be obtained; a group of three-phase balanced high-frequency voltage or current signals are applied to the permanent magnet synchronous motor, the feedback high-frequency current or voltage of the permanent magnet synchronous motor is sampled, and the quadrature axis inductance parameter L of the permanent magnet synchronous motor is obtained through calculation according to the amplitude of the feedback current or voltageqAnd a direct axis inductance parameter L of the PMSMdThe calculation amount is large, and the realization is difficult.
Disclosure of Invention
Therefore, it is necessary to provide a method and a system for offline identification of ac and dc axis inductance parameters of a permanent magnet synchronous motor, aiming at the problems of large calculation amount and difficult realization in the existing offline identification of parameters of the permanent magnet synchronous motor.
A permanent magnet synchronous motor alternating and direct axis inductance parameter off-line identification method comprises the following steps:
controlling a permanent magnet synchronous motor to be static and the winding current of the permanent magnet synchronous motor to be zero, conducting a U-phase upper bridge arm, a V-phase lower bridge arm and a W-phase lower bridge arm in an inverter, disconnecting the U-phase lower bridge arm, the V-phase upper bridge arm and the W-phase upper bridge arm in the inverter, and performing αuβuUnder a coordinate system, the time length of loading the winding of the permanent magnet synchronous motor is a first preset time t1First voltage vector of
Switching on the upper bridge arm of the V phase, the lower bridge arm of the U phase and the lower bridge arm of the W phase in the inverter, and switching off the inverterThe lower arm of V phase, the upper arm of U phase and W phase in the bridge are αvβvUnder a coordinate system, the time length of loading the winding of the permanent magnet synchronous motor is a second preset time t2Second voltage vector of
Switching on the W-phase upper arm, the U-phase lower arm and the V-phase lower arm in the inverter, and switching off the W-phase lower arm, the U-phase upper arm and the V-phase upper arm in the inverter at αwβwUnder a coordinate system, the loading time of the winding of the permanent magnet synchronous motor is a third preset time t3Third voltage vector of
Detecting DC bus voltage udcAnd sampling the first voltage vectors of the permanent magnet synchronous motor respectivelyThe second voltage vectorAnd said third voltage vectorThe current under action, and calculating to obtain a first current variable I1And a second current variable I2；
According to the DC bus voltage udcThe first current variable I1And said second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motord；
Wherein the first preset time t1The second preset time t2And the third preset time t3Are all less than d-axis time constantAnd is less than the q-axis time constantRsAnd the phase resistance parameter of the permanent magnet synchronous motor is obtained.
It is worth mentioning that the second voltage vectorDirection leads the first voltage vectorDirection 120 deg., said third voltage vectorDirection leads the second voltage vectorDirection 120 °;
αuthe axis is the U-phase direction of the permanent magnet synchronous motor, βuThe axis is the leading U-phase 90-degree direction of the permanent magnet synchronous motor αvThe axis is the V-phase direction of the permanent magnet synchronous motor, βvThe axis is the leading V-phase 90-degree direction of the permanent magnet synchronous motor αwThe shaft is in the W-phase direction of the permanent magnet synchronous motor, βwThe shaft of the permanent magnet synchronous motor leads the W-phase direction by 90 degrees.
Preferably, the first preset time t1The second preset time t2And the third preset time t3Equal and values are all t.
As an implementation manner, the sampling is performed on the permanent magnet synchronous motors respectively at the first voltage vectorsThe second voltage vectorAnd said third voltage vectorThe current under action, and calculating to obtain a first current variable I1And a second current variable I2The method comprises the following steps:
sampling the second voltage vectors of the permanent magnet synchronous motor respectivelyAnd said third voltage vectorUnder the action of the first current iv(t) and a second current iw(t)；
For the first current iv(t) and the second current iw(t) respectively carrying out Clarke transformation to obtain the first current iv(t) at said αvβvRepresentation i in the coordinate Systemv(t)=[iαv(t),iβv(t)]TAnd the second current iw(t) at said αwβwRepresentation i in the coordinate Systemw(t)=[iαw(t),iβw(t)]T；
Respectively for the first current iv(t) at said αvβvRepresentation i in the coordinate Systemv(t)=[iαv(t),iβv(t)]TAnd the second current iw(t) at said αwβwRepresentation i in the coordinate Systemw(t)=[iαw(t),iβw(t)]TPerforming current transformation to obtain
As an implementation manner, the voltage u is based on the DC bus voltagedcThe first current variable I1And said second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motordThe method comprises the following steps:
according to the formula:
calculating to obtain a quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motord。
Correspondingly, in order to realize the method for identifying the alternating-axis and direct-axis inductance parameters of the permanent magnet synchronous motor offline, the invention also provides a system for identifying the alternating-axis and direct-axis inductance parameters of the permanent magnet synchronous motor offline, which comprises a pulse signal generator, an inverter, a Clarke conversion unit, a current conversion unit, a control unit and an inductance calculation unit, wherein:
the output end of the pulse signal generator is connected with the input end of the inverter, and the output end of the inverter is connected with the input end of the permanent magnet synchronous motor;
the control unit comprises a first control subunit, a second control subunit, a third control subunit and a first detection subunit, wherein:
the first control subunit is used for controlling the permanent magnet synchronous motor to be static and the winding current of the permanent magnet synchronous motor to be zero, switching on a U-phase upper bridge arm, a V-phase lower bridge arm and a W-phase lower bridge arm in the inverter, and switching off the U-phase lower bridge arm, the V-phase upper bridge arm and the W-phase upper bridge arm in the inverter at αuβuUnder a coordinate system, controlling the duration of the pulse signal generator to load the winding of the permanent magnet synchronous motor to be first preset time t1First voltage vector of
The second control subunit is used for conducting the V-phase upper bridge arm, the U-phase lower bridge arm and the W-phase lower bridge arm in the inverter and disconnecting the V-phase lower bridge arm, the U-phase upper bridge arm and the W-phase upper bridge arm in the inverter, and the voltage is αvβvUnder a coordinate system, controlling the duration of the pulse signal generator to load the winding of the permanent magnet synchronous motor to be second preset time t2Second voltage vector of
The third control subunit is used for switching on the W-phase upper bridge arm, the U-phase lower bridge arm and the V-phase lower bridge arm in the inverter and switching off the W-phase lower bridge arm, the U-phase upper bridge arm and the V-phase upper bridge arm in the inverter, and the voltage is αwβwUnder a coordinate system, controlling the duration of the pulse signal generator to load the winding of the permanent magnet synchronous motor to be a third preset time t3Third voltage vector of
The first detection subunit is used for detecting the DC bus voltage udc；
The Clarke conversion unit is used for sampling the first voltage vectors of the permanent magnet synchronous motor respectivelyThe second voltage vectorAnd said third voltage vectorCurrent under action and Clarke transformation;
the current conversion unit is used for performing Clarke conversion on the first voltage vector of the permanent magnet synchronous motorThe second voltage vectorAnd said third voltage vectorThe current under action, calculating a first current variable I1And a second current variable I2；
The inductance calculation unit is used for calculating the inductance according to the DC bus voltage udcThe first current variable I1And said second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motord；
Wherein the first preset time t1The second preset time t2And the third preset time t3Are all less than d-axis time constantAnd is less than the q-axis time constantRsAnd the phase resistance parameter of the permanent magnet synchronous motor is obtained.
It is worth mentioning that the second voltage vectorDirection leads the first voltage vectorDirection 120 deg., said third voltage vectorDirection leads the second voltage vectorDirection 120 °;
αuthe axis is the U-phase direction of the permanent magnet synchronous motor, βuThe axis is the leading U-phase 90-degree direction of the permanent magnet synchronous motor αvThe axis is the V-phase direction of the permanent magnet synchronous motor, βvThe axis is the leading V-phase 90-degree direction of the permanent magnet synchronous motor αwThe shaft is in the W-phase direction of the permanent magnet synchronous motor, βwThe shaft is in the direction of leading the permanent magnet synchronous motor by 90 degrees in the W phase.
Preferably, the first preset time t1The second preset time t2And the third preset time t3Equal and values are all t.
Preferably, the Clarke transform unit includes a first sampling sub-unit and a first transform sub-unit, and the current transform unit includes a second transform sub-unit and a third transform sub-unit, wherein:
the first sampling subunit is configured to sample the second voltage vectors of the permanent magnet synchronous motors respectivelyAnd said third voltage vectorUnder the action of the first current iV(t) and a second current iw(t)；
The first conversion subunit is used for converting the first current iv(t) and the second current iw(t) separately performing Clarke transformation to obtain the firstCurrent iv(t) at said αvβvRepresentation i in the coordinate Systemv(t)=[iαv(t),iβv(t)]TAnd the second current iw(t) at said αwβwRepresentation i in the coordinate Systemw(t)=[iαw(t),iβw(t)]T；
The second conversion subunit is used for converting the first current iv(t) at said αvβvRepresentation i in the coordinate Systemv(t)=[iαv(t),iβv(t)]TPerforming current transformation to obtain:
the third conversion subunit is used for converting the second current iw(t) at said αwβwRepresentation i in the coordinate Systemw(t)=[iαw(t),iβw(t)]TPerforming current transformation to obtain:
as an implementable manner, the inductance calculation unit is configured to:
calculating to obtain a quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motord。
The invention provides a permanent magnet synchronous motor alternating and direct axis inductance parameter off-line identification method and systemThe current under the action of the vector is converted under the action of different voltage vectors to obtain a parameter L for calculating the quadrature axis inductance of the permanent magnet synchronous motorqAnd the direct axis inductance parameter LdFirst current variable I1And a second current variable I2And according to a first current variable I1And a second current variable I2Calculating to obtain quadrature axis inductance parameter L of permanent magnet synchronous motorqAnd the direct axis inductance parameter LdThe method has the advantages that the rotating shaft of the permanent magnet synchronous motor is not required to be fixed by external equipment, the implementation is easy, the calculated amount is small, the accuracy is high, and the problems that the calculated amount in the existing permanent magnet synchronous motor parameter offline identification is large and the realization is difficult are effectively solved.
Drawings
FIG. 1 is a flowchart of an embodiment of an off-line identification method for AC and DC axis inductance parameters of a permanent magnet synchronous motor;
FIG. 2 is a schematic diagram of an embodiment of an off-line identification system for AC and DC axis inductance parameters of a permanent magnet synchronous motor;
fig. 3 is a schematic diagram of an off-line identification system for ac and dc axis inductance parameters of a permanent magnet synchronous motor according to another embodiment.
Detailed Description
In order to make the technical scheme of the invention clearer, the invention is further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, as a specific embodiment of the method for offline identifying the inductance parameters of the alternating and direct axes of the permanent magnet synchronous motor, the method includes the following steps:
s100, controlling the permanent magnet synchronous motor to be static and the winding current of the permanent magnet synchronous motor to be zero, conducting a U-phase upper bridge arm, a V-phase lower bridge arm and a W-phase lower bridge arm in the inverter, and disconnecting the U-phase lower bridge arm, the V-phase upper bridge arm and the W-phase upper bridge arm in the inverterArm at αuβuIn a coordinate system, the time length of loading the winding of the permanent magnet synchronous motor is a first preset time t1First voltage vector ofDetecting to obtain the DC bus voltage udc；
S200, switching on a V-phase upper bridge arm, a U-phase lower bridge arm and a W-phase lower bridge arm in the inverter, and switching off the V-phase lower bridge arm, the U-phase upper bridge arm and the W-phase upper bridge arm in the inverter at αvβvIn the coordinate system, the time length of loading the winding of the permanent magnet synchronous motor is the second preset time t2Second voltage vector of
S300, switching on a W-phase upper bridge arm, a U-phase lower bridge arm and a V-phase lower bridge arm in the inverter, and switching off the W-phase lower bridge arm, the U-phase upper bridge arm and the V-phase upper bridge arm in the inverter at αwβwIn the coordinate system, the loading time of the winding of the permanent magnet synchronous motor is a third preset time t3Third voltage vector of
S400, sampling the first voltage vectors of the permanent magnet synchronous motor respectivelySecond voltage vectorAnd a third voltage vectorThe current under action, and calculating to obtain a first current variable I1And a second current variable I2；
S500, according to the DC bus voltage udcFirst current variable I1And a second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the PMSMd；
Wherein the first preset time t1A second preset time t2And a third preset time t3Are all less than d-axis time constantAnd is less than the q-axis time constantRsIs the phase resistance parameter of the permanent magnet synchronous motor.
In an embodiment of the method for offline identifying the inductance parameters of the alternating and direct axes of the permanent magnet synchronous motor, firstly, αuβuIn a coordinate system, the loading time duration of the permanent magnet synchronous motor is first preset time t1First voltage vector ofDetecting to obtain the DC bus voltage udcAnd controlling the permanent magnet synchronous motor to be continuously static and the winding current of the permanent magnet synchronous motor to be zero at αvβvThe loading duration of the permanent magnet synchronous motor under the coordinate system is second preset time t2Second voltage vector ofAt αwβwThe loading time of the permanent magnet synchronous motor in the coordinate system is a third preset time t3Third voltage vector ofSampling permanent magnet synchronous motor respectively at first voltage vectorSecond voltage vectorAnd a third voltage vectorThe current under action, and calculating to obtain a first current variable I1And a second current variable I2(ii) a According to the DC bus voltage udcFirst current variable I1And a second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the PMSMd(ii) a The quadrature axis inductance parameter L of the permanent magnet synchronous motor can be realized without fixing the rotating shaft of the permanent magnet synchronous motor by external equipmentqAnd a direct axis inductance parameter LdThe method is simple and convenient, easy to implement and small in calculated amount, and effectively solves the problems that the calculated amount is large and difficult to implement in the existing permanent magnet synchronous motor parameter off-line identification.
Here, it should be noted that, in the method for identifying inductance parameters of alternating and direct axes of a permanent magnet synchronous motor offline provided by the present invention, the first voltage vectors are respectively loaded to the windings of the permanent magnet synchronous motorSecond voltage vectorAnd a third voltage vectorThe sequence of the three phases can be exchanged, only the voltage vector loaded to the permanent magnet synchronous motor corresponds to the coordinate system, and when the voltage vector is loaded to each phase of the permanent magnet synchronous motor, the upper bridge arm and the lower bridge arm of each phase of the corresponding permanent magnet synchronous motor in the inverter are controlled to perform the same switching processing.
In addition, the first preset time t1A second preset time t2And a third preset time t3The values of (A) may be the same or different, as long as they are all less than the d-axis time constantNumber ofAnd is less than the q-axis time constantThat is, preferably, in the embodiment of the method for identifying the inductance parameter of the alternating-current axis and the direct-current axis of the permanent magnet synchronous motor offline provided by the invention, the first preset time t is set1A second preset time t2And a third preset time t3Equal and values are all t.
Wherein the second voltage vectorDirection leading first voltage vectorDirection 120 deg., third voltage vectorDirection leading the second voltage vectorDirection 120 °;
αuthe axis is in the direction of the U phase of the permanent magnet synchronous motor, βuThe shaft is the leading U-phase 90-degree direction of the permanent magnet synchronous motor αvThe axis is the V-phase direction of the permanent magnet synchronous motor, βvThe axis is the leading V phase 90 degree direction of the permanent magnet synchronous motor αwThe shaft is in the W-phase direction of the permanent magnet synchronous motor, βwThe shaft is in the direction of leading the permanent magnet synchronous motor by 90 degrees in the W phase.
In the testing of the inductance parameters of the alternating and direct axes of the permanent magnet synchronous motor, pulse voltage excitation needs to be applied to the permanent magnet synchronous motor, and the inductance parameters of the alternating and direct axes of the permanent magnet synchronous motor are calculated by detecting the current response generated by the permanent magnet synchronous motor under the pulse voltage excitation. Controlling the permanent magnet synchronous motor to be in a static state in the process of applying pulse voltage excitation to the permanent magnet synchronous motorRest state, and thus the electrical angular velocity ω of the PMSM at that timer=pθr=0, as an embodiment, the upper arm of the U-phase, the lower arm of the V-phase, and the lower arm of the W-phase in the inverter are controlled to be on, and the lower arm of the U-phase, the upper arm of the V-phase, and the upper arm of the W-phase in the inverter are controlled to be off, so that α is realizeduβuApplying a first voltage vector to the PMSM under a coordinate systemAnd detecting to obtain a first voltage vector of the permanent magnet synchronous motorUnder-applied voltage excitation response ofWherein u isdcIs a dc bus voltage; due to the application of the first voltage vector to the permanent magnet synchronous motor Is a first preset time t1And, a first preset time t1Less than d-axis time constantAnd is less than the q-axis time constantTherefore, when the inductance parameters of the alternating and direct axes of the permanent magnet synchronous motor are identified, the phase resistance parameter R of the permanent magnet synchronous motor can be ignoredsThereby, the permanent magnet synchronous machine is at αuβuMathematical model under coordinate system (I.e., voltage equation) may become:
thus, it is possible to obtain:
and due toTherefore, the temperature of the molten metal is controlled,
wherein,it can be seen from this that I1、I2Has no relation with the position and the rotating speed of the rotor of the permanent magnet synchronous motor, and only has the quadrature axis inductance parameter L of the permanent magnet synchronous motorqInductance parameter L of straight axisdApplying a first voltage vectorFirst preset time t1Value t of and dc bus voltage udc(ii) related; by passingThe quadrature axis inductance parameter L can be obtainedqAnd a direct axis inductance parameter Ld。
Preferably, the sampling permanent magnet synchronous motors are respectively at the first voltage vectorSecond oneVoltage vectorAnd a third voltage vectorThe current under action, and calculating to obtain a first current variable I1And a second current variable I2The method comprises the following steps:
s420, sampling the second voltage vectors of the permanent magnet synchronous motors respectivelyAnd a third voltage vectorUnder the action of the first current iv(t) and a second current iw(t)；
S430, for the first current iv(t) and a second current iw(t) respectively carrying out Clarke conversion to obtain first currents iv(t) at αvβvRepresentation i in the coordinate Systemv(t)=[iαv(t),iβv(t)]TAnd a second current iw(t) at αwβwRepresentation i in the coordinate Systemw(t)=[iαw(t),iβw(t)]T;
S440, respectively aiming at the first current iv(t) at αvβvRepresentation i in the coordinate Systemv(t)=[iαv(t),iβv(t)]TAnd a second current iw(t) at αwβwRepresentation i in the coordinate Systemw(t)=[iαw(t),iβw(t)]TPerforming current transformation to obtain
When a second voltage vector is appliedDefining the V-phase direction of the permanent magnet synchronous motor to be αvAxis, 90 ° leading the V-phase direction βvShaft, permanent magnet synchronous machine at second voltage vectorUnder the action of the first current, iv(t) by subjecting i tov(t) sampling and performing Clarke transformation to obtain iv(t)=[iαv(t),iβv(t)]T；
When a third voltage vector is appliedWhen in use, the W-phase direction of the permanent magnet synchronous motor is defined as αwAxis, 90 ° leading the V-phase direction βwShaft, permanent magnet synchronous machine at third voltage vectorUnder the action of the first current, the second current is generated as iw(t) by subjecting i tow(t) sampling and performing Clarke transformation to obtain iw(t)=[iαw(t),iβw(t)]T；
By making a pair iv(t)=[iαv(t),iβv(t)]TAnd iw(t)=[iαw(t),iβw(t)]TPerforming current transformation to obtain:
by the two formulae andcalculating to obtain:
obtaining a first current variable I1 and a second current variable I according to the formula2And simultaneously loading the winding of the permanent magnet synchronous motor for a first preset time t1First voltage vector ofDetected DC bus voltage udcIs composed ofThus, as an embodiment, the DC bus voltage u is used as a function ofdcFirst current variable I1And a second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the PMSMdThe method comprises the following steps:
according to the formula:
can be calculated to obtain permanent magnetQuadrature axis inductance parameter L of magnetic synchronous motorqAnd a direct axis inductance parameter L of the PMSMd。
Correspondingly, based on the same invention concept, the invention also provides an off-line identification system for the alternating-axis and direct-axis inductance parameters of the permanent magnet synchronous motor, and because the principle of the off-line identification system for the alternating-axis and direct-axis inductance parameters of the permanent magnet synchronous motor is basically the same as that of the off-line identification method for the alternating-axis and direct-axis inductance parameters of the permanent magnet synchronous motor, repeated parts are not repeated.
Referring to fig. 2 and 3, an off-line identification system 200 for ac and dc axis inductance parameters of a permanent magnet synchronous motor includes a pulse signal generator 210, an inverter 220, a control unit 230, a Clarke transformation unit 240, a current transformation unit 250, and an inductance calculation unit 260, wherein:
the output end of the pulse signal generator 210 is connected with the input end of the inverter 220, and the output end of the inverter 220 is connected with the input end of the permanent magnet synchronous motor 270;
the control unit 230 comprises a first control subunit 231, a second control subunit 232, a third control subunit 233 and a first detection subunit 234, wherein:
the first control subunit 231 is configured to control the permanent magnet synchronous motor 270 to be stationary and the winding current of the permanent magnet synchronous motor 270 to be zero, turn on the U-phase upper arm, the V-phase lower arm, and the W-phase lower arm in the inverter 220, turn off the U-phase lower arm, the V-phase upper arm, and the W-phase upper arm in the inverter 220, at αuβuUnder the coordinate system, the pulse signal generator 210 is controlled to load the winding of the permanent magnet synchronous motor 270 for a first preset time t1First voltage vector of
A second control subunit 232, configured to turn on the V-phase upper arm, the U-phase lower arm, and the W-phase lower arm in the inverter 220, and turn off the V-phase lower arm, the U-phase upper arm, and the W-phase upper arm in the inverter 220, at αvβvUnder the coordinate system, the pulse signal is controlled to be sentThe generator 210 loads the winding of the permanent magnet synchronous motor 270 for a second preset time t2Second voltage vector of
A third control subunit 233 for switching on the W-phase upper arm, the U-phase lower arm, and the V-phase lower arm in the inverter 220, and switching off the W-phase lower arm, the U-phase upper arm, and the V-phase upper arm in the inverter 220, at αwβwUnder the coordinate system, controlling the duration of the pulse signal generator 210 loading the winding of the permanent magnet synchronous motor 270 to be a third preset time t3Third voltage vector of
A first detecting subunit 234 for detecting the DC bus voltage udc；
A Clarke transformation unit 240 for sampling the first voltage vectors of the PMSM 270 respectivelySecond voltage vectorAnd a third voltage vectorCurrent under action and Clarke transformation;
a current conversion unit 250 for converting the first voltage vector of the permanent magnet synchronous motor 270 according to ClarkeSecond voltage vectorAnd a third voltage vectorThe current under action, calculating a first current variable I1And a second current variable I2；
An inductance calculating unit 260 for calculating a DC bus voltage u according to the DC bus voltagedcFirst current variable I1And a second current variable I2And calculating to obtain the quadrature axis inductance parameter L of the permanent magnet synchronous motor 270qAnd the direct axis inductance parameter L of the PMSM 270d；
Wherein the first preset time t1A second preset time t2And a third preset time t3Are all less than d-axis time constantAnd is less than the q-axis time constantRsIs the phase resistance parameter of the permanent magnet synchronous motor.
It is worth mentioning that the second voltage vectorDirection leading first voltage vectorDirection 120 deg., third voltage vectorDirection leading the second voltage vectorDirection 120 °;
αuthe axis is in the direction of the U phase of the permanent magnet synchronous motor, βuThe shaft is the leading U-phase 90-degree direction of the permanent magnet synchronous motor αvThe axis is the V-phase direction of the permanent magnet synchronous motor, βvThe axis is the leading V phase 90 degree direction of the permanent magnet synchronous motor αwThe shaft is permanent magnetW-phase direction of step motor βwThe shaft is in the direction of leading the permanent magnet synchronous motor by 90 degrees in the W phase.
Preferably, the first preset time t1A second preset time t2And a third preset time t3Equal and values are all t.
Preferably, the Clarke transform unit 240 comprises a first sampling sub-unit and a first transform sub-unit, and the current transform unit comprises a second transform sub-unit and a third transform sub-unit, wherein:
a first sampling subunit for sampling the second voltage vectors of the PMSM respectivelyAnd a third voltage vectorUnder the action of the first current iv(t) and a second current iw(t)；
A first conversion subunit for converting the first current iv(t) and a second current iw(t) respectively carrying out Clarke conversion to obtain first currents iv(t) at αvβvRepresentation i in the coordinate Systemv(t)=[iαv(t),iβv(t)]TAnd a second current iw(t) at said αwβwRepresentation i in the coordinate Systemw(t)=[iαw(t),iβw(t)]T；
A second conversion subunit for converting the first current iv(t) at αvβvRepresentation i in the coordinate Systemv(t)=[iαv(t),iβv(t)]TPerforming current transformation to obtain:
a third transformation subunit forFor the second current iw(t) at αwβwRepresentation i in the coordinate Systemw(t)=[iαw(t),iβw(t)]TPerforming current transformation to obtain:
as an implementation, the inductance calculating unit 260 is configured to:
calculating to obtain quadrature axis inductance parameter L of permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the PMSMd。
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. A permanent magnet synchronous motor alternating and direct axis inductance parameter off-line identification method is characterized by comprising the following steps:
controlling a permanent magnet synchronous motor to be static and the winding current of the permanent magnet synchronous motor to be zero, conducting a U-phase upper bridge arm, a V-phase lower bridge arm and a W-phase lower bridge arm in an inverter, disconnecting the U-phase lower bridge arm, the V-phase upper bridge arm and the W-phase upper bridge arm in the inverter, and performing αuβuUnder a coordinate system, the time length of loading the winding of the permanent magnet synchronous motor is a first preset time t1First voltage vector of
Switching on the upper V-phase arm, the lower U-phase arm and the lower W-phase arm of the inverter, and switching off the lower V-phase arm, the upper U-phase arm and the upper W-phase arm of the inverter at αvβvUnder a coordinate system, the time length of loading the winding of the permanent magnet synchronous motor is a second preset time t2Second voltage vector of
Switching on the W-phase upper arm, the U-phase lower arm and the V-phase lower arm in the inverter, and switching off the W-phase lower arm, the U-phase upper arm and the V-phase upper arm in the inverter at αwβwUnder a coordinate system, the loading time of the winding of the permanent magnet synchronous motor is a third preset time t3Third voltage vector of
Detecting DC bus voltage udcAnd sampling the first voltage vectors of the permanent magnet synchronous motor respectivelyThe second voltage vectorAnd said third voltage vectorCurrent under action according to the first voltage vector of the permanent magnet synchronous motorThe second voltage vectorAnd the third voltageVectorClarke transformation and current transformation calculation are carried out on the current under action to obtain a first current variable I1And a second current variable I2(ii) a Wherein the first preset time t1The second preset time t2And the third preset time t3Equal, and values are all t; the first current variable I1Quadrature axis inductance parameter L with permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the PMSMdThe relationship of (1) is:the second current variable I2And the quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motordThe relationship of (1) is:
according to the DC bus voltage udcThe first current variable I1And said second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motord；
Wherein the first preset time t1The second preset time t2And the third preset time t3Are all less than d-axis time constantAnd is less than the q-axis time constantRsThe phase resistance parameter of the permanent magnet synchronous motor is obtained;
according to the first voltage vector of the permanent magnet synchronous motorThe second voltage vectorAnd said third voltage vectorClarke transformation and current transformation calculation are carried out on the current under action to obtain a first current variable I1And a second current variable I2The method also comprises the following steps:
sampling the second voltage vectors of the permanent magnet synchronous motor respectivelyAnd said third voltage vectorUnder the action of the first current iv(t) and a second current iw(t)；
For the first current iv(t) and the second current iw(t) respectively carrying out Clarke transformation to obtain the first current iv(t) at said αvβvRepresentation i in the coordinate Systemv(t)＝[iαv(t),iβv(t)]TAnd the second current iW(t) at said αwβwRepresentation i in the coordinate Systemw(t)＝[iαw(t),iβw(t)]T；
Respectively for the first current iv(t) at said αvβvRepresentation i in the coordinate Systemv(t)＝[iαv(t),iβv(t)]TAnd the second current iw(t) at said αwβwRepresentation i in the coordinate Systemw(t)＝[iαw(t),iβw(t)]TPerforming current transformation to obtain
<mrow> <mfenced open = "[" close = "]"> <mtable> <mtr> <mtd> <msub> <mi>i</mi> <mrow> <mi>&alpha;</mi> <mi>v</mi> </mrow> </msub> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>i</mi> <mrow> <mi>&beta;</mi> <mi>v</mi> </mrow> </msub> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> <mo>=</mo> <mfenced open = "[" close = "]"> <mtable> <mtr> <mtd> <msub> <mi>I</mi> <mn>1</mn> </msub> <mo>+</mo> <msub> <mi>I</mi> <mn>2</mn> </msub> <mi>c</mi> <mi>o</mi> <mi>s</mi> <mn>2</mn> <mo>(</mo> <msub> <mi>&theta;</mi> <mi>r</mi> </msub> <mo>-</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mi>&pi;</mi> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>I</mi> <mn>2</mn> </msub> <mi>sin</mi> <mn>2</mn> <mo>(</mo> <msub> <mi>&theta;</mi> <mi>r</mi> </msub> <mo>-</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mi>&pi;</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> <mo>;</mo> </mrow>
<mrow> <mfenced open = "[" close = "]"> <mtable> <mtr> <mtd> <msub> <mi>i</mi> <mrow> <mi>&alpha;</mi> <mi>w</mi> </mrow> </msub> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>i</mi> <mrow> <mi>&beta;</mi> <mi>w</mi> </mrow> </msub> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> <mo>=</mo> <mfenced open = "[" close = "]"> <mtable> <mtr> <mtd> <msub> <mi>I</mi> <mn>1</mn> </msub> <mo>+</mo> <msub> <mi>I</mi> <mn>2</mn> </msub> <mi>c</mi> <mi>o</mi> <mi>s</mi> <mn>2</mn> <mo>(</mo> <msub> <mi>&theta;</mi> <mi>r</mi> </msub> <mo>+</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mi>&pi;</mi> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>I</mi> <mn>2</mn> </msub> <mi>sin</mi> <mn>2</mn> <mo>(</mo> <msub> <mi>&theta;</mi> <mi>r</mi> </msub> <mo>+</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mi>&pi;</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> <mo>.</mo> </mrow>
2. The method of claim 1, wherein the second voltage vector is used for identifying the inductance parameters of the alternating and direct axes of the PMSM in an off-line mannerDirection leads the first voltage vectorDirection 120 deg., said third voltage vectorDirection leads the second voltage vectorDirection 120 °;
αuthe axis is the U-phase direction of the permanent magnet synchronous motor, βuThe axis is the leading U-phase 90-degree direction of the permanent magnet synchronous motor αvThe axis is the V-phase direction of the permanent magnet synchronous motor, βvThe axis is the leading V-phase 90-degree direction of the permanent magnet synchronous motor αwThe shaft is in the W-phase direction of the permanent magnet synchronous motor, βwThe shaft of the permanent magnet synchronous motor leads the W-phase direction by 90 degrees.
3. The method of claim 2, wherein the method is based on the DC bus voltage udcThe first current variable I1And said second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motordThe method comprises the following steps:
according to the formula:
<mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <msub> <mi>L</mi> <mi>d</mi> </msub> <mo>=</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mfrac> <mrow> <msub> <mi>u</mi> <mrow> <mi>d</mi> <mi>c</mi> </mrow> </msub> <mi>t</mi> </mrow> <mrow> <msub> <mi>I</mi> <mn>1</mn> </msub> <mo>+</mo> <msub> <mi>I</mi> <mn>2</mn> </msub> </mrow> </mfrac> </mtd> </mtr> <mtr> <mtd> <mrow> <msub> <mi>L</mi> <mi>q</mi> </msub> <mo>=</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mfrac> <mrow> <msub> <mi>u</mi> <mrow> <mi>d</mi> <mi>c</mi> </mrow> </msub> <mi>t</mi> </mrow> <mrow> <msub> <mi>I</mi> <mn>1</mn> </msub> <mo>-</mo> <msub> <mi>I</mi> <mn>2</mn> </msub> </mrow> </mfrac> </mrow> </mtd> </mtr> </mtable> </mfenced>
calculating to obtain a quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motord。
4. The utility model provides a permanent magnet synchronous machine quadrature, direct axis inductance parameter off-line identification system which characterized in that, includes pulse generator, dc-to-ac converter, Clarke transform unit, current transform unit, the control unit and inductance calculating unit, wherein:
the output end of the pulse signal generator is connected with the input end of the inverter, and the output end of the inverter is connected with the input end of the permanent magnet synchronous motor;
the control unit comprises a first control subunit, a second control subunit, a third control subunit and a first detection subunit, wherein:
the first control subunit is used for controlling the permanent magnet synchronous motor to be static and the winding current of the permanent magnet synchronous motor to be zero, switching on a U-phase upper bridge arm, a V-phase lower bridge arm and a W-phase lower bridge arm in the inverter, and switching off the U-phase lower bridge arm, the V-phase upper bridge arm and the W-phase upper bridge arm in the inverter at αuβuUnder a coordinate system, controlling the duration of the pulse signal generator to load the winding of the permanent magnet synchronous motor to be first preset time t1First voltage vector of
The second control subunit is used for conducting the V-phase upper bridge arm, the U-phase lower bridge arm and the W-phase lower bridge arm in the inverter and disconnecting the V-phase lower bridge arm, the U-phase upper bridge arm and the W-phase upper bridge arm in the inverter, and the voltage is αvβvUnder a coordinate system, controlling the duration of the pulse signal generator to load the winding of the permanent magnet synchronous motor to be second preset time t2Second voltage vector of
The third control subunit is used for switching on the W-phase upper bridge arm, the U-phase lower bridge arm and the V-phase lower bridge arm in the inverter and switching off the W-phase lower bridge arm, the U-phase upper bridge arm and the V-phase upper bridge arm in the inverter, and the voltage is αwβwUnder a coordinate system, controlling the duration of the pulse signal generator to load the winding of the permanent magnet synchronous motor to be a third preset time t3Third voltage vector of
The first detection subunit is used for detecting the DC bus voltage udc；
The Clarke conversion unit is used for sampling the first voltage vectors of the permanent magnet synchronous motor respectivelyThe second voltage vectorAnd said third voltage vectorCurrent under action and Clarke transformation;
the current conversion unit is used for performing Clarke conversion on the first voltage vector of the permanent magnet synchronous motorThe second voltage vectorAnd said third voltage vectorCurrent under action according to the first voltage vector of the permanent magnet synchronous motorThe second voltage vectorAnd said third voltage vectorClarke conversion and current conversion are carried out on the current under action to calculate a first current variable I1And a second currentVariable I2(ii) a Wherein the first preset time t1The second preset time t2And the third preset time t3Equal, and values are all t; the first current variable I1Quadrature axis inductance parameter L with permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the PMSMdThe relationship of (1) is:the second current variable I2And the quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motordThe relationship of (1) is:
the inductance calculation unit is used for calculating the inductance according to the DC bus voltage udcThe first current variable I1And said second current variable I2And calculating to obtain quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motord；
Wherein the first preset time t1The second preset time t2And the third preset time t3Are all less than d-axis time constantAnd is less than the q-axis time constantRsThe phase resistance parameter of the permanent magnet synchronous motor is obtained;
wherein, the Clarke transform unit comprises a first sampling sub-unit and a first transform sub-unit, and the current transform unit comprises a second transform sub-unit and a third transform sub-unit, wherein:
the first sampling subunit is configured to sample the second voltage vectors of the permanent magnet synchronous motors respectivelyAnd said third voltage vectorUnder the action of the first current iv(t) and a second current iw(t)；
The first conversion subunit is used for converting the first current iv(t) and the second current iw(t) respectively carrying out Clarke transformation to obtain the first current iv(t) at said αvβvRepresentation i in the coordinate Systemv(t)＝[iαv(t),iβv(t)]TAnd the second current iw(t) at said αwβwRepresentation i in the coordinate Systemw(t)＝[iαw(t),iβw(t)]T；
The second conversion subunit is used for converting the first current iv(t) at said αvβvRepresentation i in the coordinate Systemv(t)＝[iαv(t),iβv(t)]TPerforming current transformation to obtain:
<mrow> <mfenced open = "[" close = "]"> <mtable> <mtr> <mtd> <msub> <mi>i</mi> <mrow> <mi>&alpha;</mi> <mi>v</mi> </mrow> </msub> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>i</mi> <mrow> <mi>&beta;</mi> <mi>v</mi> </mrow> </msub> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> <mo>=</mo> <mfenced open = "[" close = "]"> <mtable> <mtr> <mtd> <msub> <mi>I</mi> <mn>1</mn> </msub> <mo>+</mo> <msub> <mi>I</mi> <mn>2</mn> </msub> <mi>c</mi> <mi>o</mi> <mi>s</mi> <mn>2</mn> <mo>(</mo> <msub> <mi>&theta;</mi> <mi>r</mi> </msub> <mo>-</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mi>&pi;</mi> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>I</mi> <mn>2</mn> </msub> <mi>sin</mi> <mn>2</mn> <mo>(</mo> <msub> <mi>&theta;</mi> <mi>r</mi> </msub> <mo>-</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mi>&pi;</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> <mo>;</mo> </mrow>
the third conversion subunit is used for converting the second current iw(t) at said αwβwRepresentation i in the coordinate Systemw(t)＝[iαw(t),iβw(t)]TPerforming current transformation to obtain:
<mrow> <mfenced open = "[" close = "]"> <mtable> <mtr> <mtd> <msub> <mi>i</mi> <mrow> <mi>&alpha;</mi> <mi>w</mi> </mrow> </msub> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>i</mi> <mrow> <mi>&beta;</mi> <mi>w</mi> </mrow> </msub> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> <mo>=</mo> <mfenced open = "[" close = "]"> <mtable> <mtr> <mtd> <msub> <mi>I</mi> <mn>1</mn> </msub> <mo>+</mo> <msub> <mi>I</mi> <mn>2</mn> </msub> <mi>c</mi> <mi>o</mi> <mi>s</mi> <mn>2</mn> <mo>(</mo> <msub> <mi>&theta;</mi> <mi>r</mi> </msub> <mo>+</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mi>&pi;</mi> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>I</mi> <mn>2</mn> </msub> <mi>s</mi> <mi>i</mi> <mi>n</mi> <mn>2</mn> <mo>(</mo> <msub> <mi>&theta;</mi> <mi>r</mi> </msub> <mo>+</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mi>&pi;</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> <mo>.</mo> </mrow>
5. the PMSM AC-DC parameter off-line identification system according to claim 4, wherein the second voltage vectorDirection leads the first voltage vectorIn a direction of 120 deg. soThe third voltage vectorDirection leads the second voltage vectorDirection 120 °;
αuthe axis is the U-phase direction of the permanent magnet synchronous motor, βuThe axis is the leading U-phase 90-degree direction of the permanent magnet synchronous motor αvThe axis is the V-phase direction of the permanent magnet synchronous motor, βvThe axis is the leading V-phase 90-degree direction of the permanent magnet synchronous motor αwThe shaft is in the W-phase direction of the permanent magnet synchronous motor, βwThe shaft is in the direction of leading the permanent magnet synchronous motor by 90 degrees in the W phase.
6. The permanent magnet synchronous motor quadrature and direct axis inductance parameter off-line identification system of claim 5, wherein the inductance calculation unit is configured to:
<mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <msub> <mi>L</mi> <mi>d</mi> </msub> <mo>=</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mfrac> <mrow> <msub> <mi>u</mi> <mrow> <mi>d</mi> <mi>c</mi> </mrow> </msub> <mi>t</mi> </mrow> <mrow> <msub> <mi>I</mi> <mn>1</mn> </msub> <mo>+</mo> <msub> <mi>I</mi> <mn>2</mn> </msub> </mrow> </mfrac> </mtd> </mtr> <mtr> <mtd> <mrow> <msub> <mi>L</mi> <mi>q</mi> </msub> <mo>=</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <mfrac> <mrow> <msub> <mi>u</mi> <mrow> <mi>d</mi> <mi>c</mi> </mrow> </msub> <mi>t</mi> </mrow> <mrow> <msub> <mi>I</mi> <mn>1</mn> </msub> <mo>-</mo> <msub> <mi>I</mi> <mn>2</mn> </msub> </mrow> </mfrac> </mrow> </mtd> </mtr> </mtable> </mfenced>
calculating to obtain a quadrature axis inductance parameter L of the permanent magnet synchronous motorqAnd a direct axis inductance parameter L of the permanent magnet synchronous motord。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049015.7A CN104836507B (en) | 2014-02-12 | 2014-02-12 | Permanent magnet synchronous motor alternating-axis and direct-axis inductance parameter off-line identification method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049015.7A CN104836507B (en) | 2014-02-12 | 2014-02-12 | Permanent magnet synchronous motor alternating-axis and direct-axis inductance parameter off-line identification method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104836507A CN104836507A (en) | 2015-08-12 |
| CN104836507B true CN104836507B (en) | 2017-12-15 |
Family
ID=53814185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410049015.7A Active CN104836507B (en) | 2014-02-12 | 2014-02-12 | Permanent magnet synchronous motor alternating-axis and direct-axis inductance parameter off-line identification method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104836507B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120199A (en) * | 2018-08-14 | 2019-01-01 | 四川虹美智能科技有限公司 | A kind of method and device of the d axle inductance of determining variable-frequency motor |
| CN109932648B (en) * | 2019-01-29 | 2020-05-19 | 华中科技大学 | A test method for measuring the q-axis inductance saturation characteristics of a synchronous motor |
| CN110149081B (en) * | 2019-05-08 | 2021-05-07 | 固高科技(深圳)有限公司 | Control method and parameter online identification system of permanent magnet synchronous motor |
| CN110943660B (en) * | 2019-11-22 | 2021-07-02 | 苏州伟创电气科技股份有限公司 | Synchronous motor inductance detection method and device |
| CN113131817A (en) * | 2021-04-09 | 2021-07-16 | 陕西科技大学 | Online parameter identification system and method for permanent magnet synchronous motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386835A (en) * | 2010-08-27 | 2012-03-21 | 永济新时速电机电器有限责任公司 | Method for acquiring parameters of permanent magnet synchronous motor (PMSM) |
| CN102714480A (en) * | 2011-03-30 | 2012-10-03 | 深圳市英威腾电气股份有限公司 | Inductance parameter identification method of synchronous motor and implementation system thereof |
| CN103178769A (en) * | 2013-04-03 | 2013-06-26 | 哈尔滨工业大学 | Off-line identification method of parameters of permanent magnet synchronous motor in static state |
| CN103560736A (en) * | 2013-10-28 | 2014-02-05 | 华南理工大学 | Static off-line parameter identification method of permanent magnet synchronous motor |
-
2014
- 2014-02-12 CN CN201410049015.7A patent/CN104836507B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386835A (en) * | 2010-08-27 | 2012-03-21 | 永济新时速电机电器有限责任公司 | Method for acquiring parameters of permanent magnet synchronous motor (PMSM) |
| CN102714480A (en) * | 2011-03-30 | 2012-10-03 | 深圳市英威腾电气股份有限公司 | Inductance parameter identification method of synchronous motor and implementation system thereof |
| CN103178769A (en) * | 2013-04-03 | 2013-06-26 | 哈尔滨工业大学 | Off-line identification method of parameters of permanent magnet synchronous motor in static state |
| CN103560736A (en) * | 2013-10-28 | 2014-02-05 | 华南理工大学 | Static off-line parameter identification method of permanent magnet synchronous motor |
Non-Patent Citations (2)
| Title |
|---|
| Identification of machine parameters of a synchronous motor;K.M.Rahman;《IEEE Transactions on Industry Applications》;20050404;第41卷(第2期);第557-565页 * |
| 永磁同步电机电感参数测量系统的设计与分析;曹艳玲等;《微电机》;20131228;第46卷(第12期);第42-46页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104836507A (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101951211B (en) | Brushless direct current motor electromagnetic torque observation method based on self-adapting slipform observer | |
| KR102442060B1 (en) | Power apparatus, motor driving apparatus therein | |
| CN104836499B (en) | Permanent magnet synchronous motor alternating-axis and direct-axis inductance parameter online identification method and system | |
| TWI462434B (en) | Apparatus for controlling rotary machinery and method for measuring the inductance of rotary machinery | |
| JP2015211617A5 (en) | ||
| EP2779415A2 (en) | Motor control system to compensate for torque ripple | |
| JP5523584B2 (en) | Inductance measuring apparatus and measuring method for synchronous motor | |
| CN104836507B (en) | Permanent magnet synchronous motor alternating-axis and direct-axis inductance parameter off-line identification method and system | |
| EP3252942A1 (en) | Inverter control device and motor drive system | |
| WO2007070814A2 (en) | Method and apparatus for sensorless position control of a permanent magnet synchronous motor (pmsm) drive system | |
| JP2017169251A (en) | Zero-phase current suppression controller of open winding induction machine | |
| JP2014068528A (en) | Measuring method of inductance of permanent magnet synchronous motor, measuring device and permanent magnet synchronous motor | |
| JP5333256B2 (en) | AC rotating machine control device | |
| CN106357187A (en) | Electrically-excited synchronous motor rotor initial position identifying system and method | |
| WO2020105204A1 (en) | Power conversion device | |
| CN107017807A (en) | A kind of stator permanent magnetic type memory electrical machine method for suppressing torque ripple | |
| CN107947669A (en) | A kind of hybrid exciting synchronous motor Nonlinear backstepping tracking and controlling method | |
| JP2008206330A (en) | Device and method for estimating magnetic pole position of synchronous electric motor | |
| CN105353220A (en) | Identification method for electric performance parameter of three-phase asynchronous motor | |
| CN103187910B (en) | Apparatus for controlling interior permanent magnet synchronous motor | |
| JP4670044B2 (en) | Method and apparatus for estimating magnetic pole position of electric motor | |
| JP5082216B2 (en) | Rotation detection device for turbocharger with electric motor and rotation detection method for turbocharger with electric motor | |
| CN103248305B (en) | For the method for two synchronous coordinate system vector control of Electric Machine Control | |
| Goswami et al. | Real-time flux-torque estimation of three phase induction motor using LabVIEW | |
| KR101694167B1 (en) | Method for estimating rotar position of synchronous motor and motor driver using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |