CN105490617A - Method and system for driving motor - Google Patents
Method and system for driving motor Download PDFInfo
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- CN105490617A CN105490617A CN201510967731.8A CN201510967731A CN105490617A CN 105490617 A CN105490617 A CN 105490617A CN 201510967731 A CN201510967731 A CN 201510967731A CN 105490617 A CN105490617 A CN 105490617A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000007689 inspection Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 9
- 239000002002 slurry Substances 0.000 description 7
- 230000003321 amplification Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 102100023941 G-protein-signaling modulator 2 Human genes 0.000 description 1
- 101000904754 Homo sapiens G-protein-signaling modulator 2 Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
- H02P27/085—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
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Abstract
The invention discloses a method and a system for driving a motor. The method comprises the steps as follows: a control circuit generates a pulse width modulation signal according to input code data and collected terminal voltage of the motor, and outputs the pulse width modulation signal to an inverter circuit; the inverter circuit converts a direct-current power supply into an alternating current power supply according to the pulse width modulation signal and outputs the alternating current power supply to the motor; and the motor works under the drive of the alternating current power supply. According to the method and the system, the technical problem of high power consumption of an electromagnet mud pulser drive device in the prior art is solved; the service lifetime of a battery pack is prolonged; the battery change frequency is reduced; the cost is saved; the drilling efficiency is greatly improved; a high-capacity capacitor bank is reduced; the production cost of the system is reduced; the volume of the system is reduced; and the system design is relatively compact.
Description
Technical field
The present invention relates to Motor Control field, in particular to a kind of method and system for drive motor.
Background technology
MWD (wireless drilling measuring system) has been wide-angle and horizontal well drilling, carry out one of the key technology of well site data acquisition, explanation and decision-making in-situ in real time, slurry pulsator is the most important part of wireless drilling measuring system, mainly through the wave transmission signal of drilling fluid.The general principle of mud-pulse transmission is that the signal that downhole sensor measures is encoded, the work such as the cone valve on it, rotary valve or rotor are driven by the drive unit of slurry pulsator, generation is dammed effect, thus generation mud-pressure pulses, the mud of pressure pulse in drill string is delivered to ground, and the pressure sensor that ground column is installed receives pressure pulse signal, after filtering after shaping, by the decoding system decodes on ground, thus down-hole can be obtained transmit the data-signal come up.
Mud-pulse transmission is divided into negative pulse, positive pulse and continuous wave three kinds of transmission meanss, and most widely used is at present positive pulse transmission means.The reciprocating signal generator of hydraulic-driven with pilot control is the form that mud positive pulse transmission means is the most general.Traditional version drives primary throttle valve reciprocating motion to produce pressure pulse signal by hydraulic control circuit, and the medium of hydraulic control circuit can be drilling fluid also can be hydraulic oil.Mostly pilot valve action is to have been come by electromagnet, and wherein electromagnet type pulser drive unit is the important part of pulser.
But, there is following shortcoming in electromagnet type pulser drive unit: the maintenance electric current that electromagnet still needs driver to provide larger when keeping attracting state, this can shorten the useful life of battery pack greatly, increases and changes battery number of times, greatly reduce drilling efficiency.
For the technical problem that the power consumption of electromagnet type slurry pulsator drive unit existence in prior art is large, at present effective solution is not yet proposed.
Summary of the invention
Embodiments provide a kind of method and system for drive motor, with the technical problem that the power consumption at least solving electromagnet type slurry pulsator drive unit existence in prior art is large.
According to an aspect of the embodiment of the present invention, provide a kind of method for drive motor, comprise: control circuit, according to the terminal voltage of the coded data of input with the motor collected, generates pulse-width signal, and pulse-width signal is sent to inverter circuit; DC power supply, according to pulse-width signal, is converted to AC power by inverter circuit, and exports AC power to motor; Motor works under the drive of AC power.
According to the another aspect of the embodiment of the present invention, additionally provide a kind of system for drive motor, comprising: control circuit, for according to the coded data of input and the terminal voltage of the motor collected, generate pulse-width signal; Inverter circuit, is electrically connected with control circuit, for according to pulse-width signal, DC power supply is converted to AC power; Motor, is electrically connected with inverter circuit, for working under the drive of AC power.
In embodiments of the present invention, by control circuit according to the terminal voltage of the coded data of input with the motor collected, generate pulse-width signal, and export pulse-width signal to inverter circuit, inverter circuit is according to pulse-width signal, DC power supply is converted to AC power, and export AC power to motor, motor works under the drive of AC power, thus realization control motor completes corresponding actions, and then drive pilot valve action by transmission mechanism, and control the existence that machine operation does not need to keep electric current, system power dissipation can be reduced greatly, thus the technical problem that the power consumption that in solution prior art, electromagnet type slurry pulsator drive unit exists is large.Therefore, the method provided by the application, not only improves the useful life of battery pack, reduces the number of times changing battery, save cost, greatly improved drilling efficiency, and decrease large bulk capacitance group, reduction system is produced and is risen this, reduces system bulk, makes system compacter.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of a kind of method for drive motor according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of a kind of system for drive motor according to the embodiment of the present invention;
Fig. 3 is the structural representation of a kind of optional control circuit according to the embodiment of the present invention;
Fig. 4 is the structural representation of a kind of optional inverter circuit according to the embodiment of the present invention;
Fig. 5 is a kind of optional schematic diagram for the system of drive motor according to the embodiment of the present invention;
Fig. 6 (a) is the structural representation of a kind of optional terminal voltage detecting circuit according to the embodiment of the present invention;
Fig. 6 (b) is the structural representation of a kind of optional terminal voltage detecting circuit according to the embodiment of the present invention;
Fig. 6 (c) is the structural representation of a kind of optional terminal voltage detecting circuit according to the embodiment of the present invention; And
Fig. 7 is the structural representation of a kind of optional drive circuit according to the embodiment of the present invention.
Embodiment
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiment 1
According to the embodiment of the present invention, provide a kind of embodiment of the method for drive motor, it should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Fig. 1 is the flow chart of a kind of method for drive motor according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps:
Step S102, control circuit, according to the terminal voltage of the coded data of input with the motor collected, generates pulse-width signal, and exports pulse-width signal to inverter circuit.
Particularly, the chip of above-mentioned control circuit can be model be TMS320F28027.
In the optional scheme of one, control circuit is according to the terminal voltage of the inserting tube coded data inputted and the motor collected, apply built-in motor control algorithms, calculate the output signal value on each road in 6 road pulse-width signals (pwm signal), and export this 6 road pwm signal to inverter circuit.
Step S104, DC power supply, according to pulse-width signal, is converted to AC power by inverter circuit, and exports AC power to motor.
Particularly, the chip of above-mentioned inverter circuit can be model be TR-CSD18533Q5A.
In the optional scheme of one, the 6 road pwm signals that inverter circuit exports according to control circuit, DC power supply battery pack provided converts the certain AC power of frequency and voltage to, and exports this AC power the A phase of motor to, B phase and C phase.
Step S106, motor works under the drive of AC power.
In the optional scheme of one, motor, in A phase, works under the drive of the AC power of B phase and C phase, exports the drive singal of driving pulse generating mechanism.
In the above embodiments of the present application, by control circuit according to the terminal voltage of the coded data of input with the motor collected, generate pulse-width signal, and export pulse-width signal to inverter circuit, inverter circuit is according to pulse-width signal, DC power supply is converted to AC power, and export AC power to motor, motor works under the drive of AC power, thus realization control motor completes corresponding actions, and then drive pilot valve action by transmission mechanism, and control the existence that machine operation does not need to keep electric current, system power dissipation can be reduced greatly, thus the technical problem that the power consumption that in solution prior art, electromagnet type slurry pulsator drive unit exists is large.Therefore, the method provided by the application, not only improves the useful life of battery pack, reduces the number of times changing battery, save cost, greatly improved drilling efficiency, and decrease large bulk capacitance group, reduction system is produced and is risen this, reduces system bulk, makes system compacter.
According to the above embodiments of the present application, in step S104, inverter circuit is according to pulse-width signal, and after DC power supply is converted to AC power, said method also comprises the steps:
Step S108, the terminal voltage of terminal voltage detecting electric circuit inspection motor, and export terminal voltage to control circuit.
In the optional scheme of one, the A phase of motor, B phase is connected with C to terminal voltage detecting circuit, and terminal voltage detecting circuit output motor A phase terminal voltage, B phase terminal voltage and C phase terminal voltage are to control circuit.
According to the above embodiments of the present application, step S102, control circuit, according to the terminal voltage of the coded data of input with the motor collected, generates pulse-width signal and comprises the steps:
Step S1022, control circuit, according to coded data and terminal voltage, generates pulse-width signal.
In the optional scheme of one, the coded data that control circuit inputs according to inserting tube and the motor A phase terminal voltage that terminal voltage detecting circuit exports, B phase terminal voltage and C phase terminal voltage, apply built-in motor control algorithms, calculate the output signal value on each road in 6 road pwm signals, obtain 6 road pwm signals.
Pass through such scheme, the terminal voltage of terminal voltage detecting electric circuit inspection motor three-phase also exports control circuit to, control circuit generates pulse-width signal according to coded data and terminal voltage, thus realizes control circuit adjusts pulse-width signal in real time object according to the terminal voltage of the motor collected.
According to the above embodiments of the present application, in step S1022, control circuit is according to coded data and terminal voltage, and after generating pulse-width signal, said method also comprises the steps:
Step S1024, the pulse-width signal that drive circuit reception control circuit exports.
Step S1026, drive circuit, according to the running parameter preset and pulse-width signal, obtains drive singal.
Step S1028, drive circuit exports drive singal to inverter circuit.
Particularly, the chip of above-mentioned drive circuit can be model be DRV8301DCA, above-mentioned drive singal can be the pulse-width signal after power amplification.
In the optional scheme of one, control circuit exports the 6 road pwm signals generated to drive circuit, and exports default running parameter to drive circuit by SPI interface.Drive circuit is according to the running parameter preset, and carry out power amplification to 6 road pwm signals, 6 road pwm signal, i.e. drive singal after being amplified, drive circuit exports drive singal to inverter circuit.Inverter circuit converts the certain AC power of frequency and voltage to according to the drive singal DC power supply that just battery pack provides, and exports this AC power the A phase of motor to, B phase and C phase.
By such scheme, drive circuit generates drive singal according to the running parameter preset and pulse-width signal, realizes the object of pulse-width signal being carried out to power amplification.
Embodiment 2
According to the embodiment of the present invention, provide a kind of system embodiment for drive motor, Fig. 2 is the schematic diagram of a kind of system for drive motor according to the embodiment of the present invention, as shown in Figure 2, this system comprises: control circuit 21, inverter circuit 23 and motor 25.
Wherein, control circuit 21, for according to the coded data of input and the terminal voltage of the motor collected, generates pulse-width signal.
In the optional scheme of one, control circuit is according to the terminal voltage of the inserting tube coded data inputted and the motor collected, apply built-in motor control algorithms, calculate the output signal value on each road in 6 road pulse-width signals (pwm signal), and export this 6 road pwm signal to inverter circuit.
Fig. 3 is the structural representation of a kind of optional control circuit according to the embodiment of the present invention, and as shown in Figure 3, control circuit master chip is TMS320F28027, and 3 pin of control circuit are reset signal pin, are connected to+3.3V power supply by pull-up resistor R1; 11 pin are connected to+3.3V power supply by inductance L 1, and are connected to GND by electric capacity C5; 12 pin are connected to GND; 30 pin, 33 pin, 34 pin, 44 pin are connected to GND; 32 pin are connected to GND by electric capacity C7; 35 pin are connected to+3.3V power supply by inductance L 2, are connected to GND by electric capacity C6; 45 pin and 46 pin are connected to resistance R2 two ends, and resistance R2 is connected to crystal oscillator Q1 two ends, and crystal oscillator Q1 two ends are connected to GND respectively by electric capacity C1, C2.
Control circuit receives the coded data of input by 31 pin and 36 pin, after the built-in motor control algorithms of application obtains 6 road pwm signals, by 28 pin PWM-AL, 29 pin PWM-AH, 37 pin PWM-BH, 38 pin PWM-BL, 39 pin PWM-CH and 40 pin PWM-CL altogether 6 pins export this 6 road pwm signal.
Inverter circuit 23, is electrically connected with control circuit 21, for according to pulse-width signal, DC power supply is converted to AC power.
In the optional scheme of one, the 6 road pwm signals that inverter circuit exports according to control circuit, DC power supply battery pack provided converts the certain AC power of frequency and voltage to, and exports this AC power the A phase of motor to, B phase and C phase.
Fig. 4 is the structural representation of a kind of optional inverter circuit according to the embodiment of the present invention, as shown in Figure 4, inverter circuit mainly adopts TR-CSD18533Q5A to build, wherein 5 pin of Q2 are connected to+28V, be connected to one end of C20, the other end of C20 is connected to GND simultaneously, and 4 pin of Q2 are connected to one end of R16, the other end of R16 connects GH_A port, and 1 pin of Q2,2 pin, 3 pin are connected to 5 pin and the SH_A port of Q5 simultaneously; 4 pin of Q5 are connected to one end of R21, and the other end of R21 connects GL_A port, and 1 pin of Q5,2 pin, 3 pin are connected to one end of R27, one end of C34 and SL_A port simultaneously, and the other end of R27 is connected to the other end of C34, and ground connection GND; 5 pin of Q3 are connected to+28V, are connected to one end of C21 simultaneously, and the other end of C21 is connected to GND, and 4 pin of Q3 are connected to one end of R17, and the other end of R17 connects GH_B port, and 1 pin of Q3,2 pin, 3 pin are connected to 5 pin and the SH_B port of Q6 simultaneously; 4 pin of Q6 are connected to one end of R22, and the other end of R22 connects GL_B port, and 1 pin of Q6,2 pin, 3 pin are connected to one end and the SL_B port of R27 simultaneously; 5 pin of Q4 are connected to+28V, are connected to one end of C22 simultaneously, and the other end of C22 is connected to GND, and 4 pin of Q4 are connected to one end of R18, and the other end of R18 connects GH_C port, and 1 pin of Q4,2 pin, 3 pin are connected to 5 pin and the SH_C port of Q7 simultaneously; 4 pin of Q7 are connected to one end of R23, and the other end of R22 connects GL_C port, and 1 pin of Q7,2 pin, 3 pin are connected to one end and the SL_C port of R27 simultaneously.
Inverter circuit is by the other end of R16, the other end of R21, the other end of R17, the other end of R22, the 6 road pwm signals that the other end of R18 and the other end reception control circuit of R23 export, and by the electric SH_A of the 5 pin output motor A cross streams of Q5, by the 5 pin output motor B cross streams electricity SH_B of Q6, by the 5 pin output motor C cross streams electricity SH_C of Q7.
Motor 25, is electrically connected with inverter circuit 23, for working under the drive of AC power.
In the optional scheme of one, motor, in A phase, works under the drive of the AC power of B phase and C phase, exports the drive singal of driving pulse generating mechanism.
In the above embodiments of the present application, by control circuit according to the terminal voltage of the coded data of input with the motor collected, generate pulse-width signal, and export pulse-width signal to inverter circuit, inverter circuit is according to pulse-width signal, DC power supply is converted to AC power, and export AC power to motor, motor works under the drive of AC power, thus realization control motor completes corresponding actions, and then drive pilot valve action by transmission mechanism, and control the existence that machine operation does not need to keep electric current, system power dissipation can be reduced greatly, thus the technical problem that the power consumption that in solution prior art, electromagnet type slurry pulsator drive unit exists is large.Therefore, the method provided by the application, not only improves the useful life of battery pack, reduces the number of times changing battery, save cost, greatly improved drilling efficiency, and decrease large bulk capacitance group, reduction system is produced and is risen this, reduces system bulk, makes system compacter.
According to the above embodiments of the present application, as shown in Figure 5, said system also comprises:
Terminal voltage detecting circuit, is electrically connected with inverter circuit and control circuit respectively, for detecting the terminal voltage of motor.
In the optional scheme of one, the A phase of motor, B phase is connected with C to terminal voltage detecting circuit, and terminal voltage detecting circuit output motor A phase terminal voltage, B phase terminal voltage and C phase terminal voltage are to control circuit.The coded data that control circuit inputs according to inserting tube and the motor A phase terminal voltage that terminal voltage detecting circuit exports, B phase terminal voltage and C phase terminal voltage, apply built-in motor control algorithms, calculate the output signal value on each road in 6 road pwm signals, obtain 6 road pwm signals.
As shown in Fig. 6 (a) to Fig. 6 (c), in terminal voltage detecting circuit, in inverter circuit, 5 pin of Q5 are connected to one end of R3, the other end of R3 is connected to 7 pin VA-FB of one end of R4, one end of C3 and control circuit TMS320F28027 chip, and the R4 other end and the C3 other end are connected to GND; In inverter circuit, 5 pin of Q6 are connected to one end of R5, and the other end of R5 is connected to 8 pin VA-FB of one end of R6 and one end of C9 and control circuit TMS320F28027 chip, and the R6 other end, the C9 other end are connected to GND; In inverter circuit, 5 pin of Q7 are connected to one end of R7, and the other end of R7 is connected to 10 pin VC-FB of one end of R8 and one end of C10 and control circuit TMS320F28027 chip, and the R8 other end, the C10 other end are connected to GND.
Terminal voltage detecting circuit is by one end of R3, alternating current A phase is detected in one end of R5 and one end of R7, the terminal voltage of B phase and C phase, and by the other end of R3, the other end of R5 and the other end output motor A phase terminal voltage of R7, motor B phase terminal voltage and motor C phase terminal voltage are to control circuit.
Pass through such scheme, the terminal voltage of terminal voltage detecting electric circuit inspection motor three-phase also exports control circuit to, control circuit generates pulse-width signal according to coded data and terminal voltage, thus realizes control circuit adjusts pulse-width signal in real time object according to the terminal voltage of the motor collected.
According to the above embodiments of the present application, as shown in Figure 5, said system also comprises:
Drive circuit, is connected between control circuit and inverter circuit, for according to the running parameter preset and pulse-width signal, generates drive singal.
In the optional scheme of one, control circuit exports the 6 road pwm signals generated to drive circuit, and exports default running parameter to drive circuit by SPI interface.Drive circuit is according to the running parameter preset, and carry out power amplification to 6 road pwm signals, 6 road pwm signal, i.e. drive singal after being amplified, drive circuit exports drive singal to inverter circuit.Inverter circuit converts the certain AC power of frequency and voltage to according to the DC power supply that battery pack provides by drive singal, and exports this AC power the A phase of motor to, B phase and C phase.
It should be noted that, as shown in Figure 5, drive circuit provides operating voltage, the 3.3V power supply namely in Fig. 5 for control circuit herein.
Fig. 7 is the structural representation of a kind of optional drive circuit according to the embodiment of the present invention, and as shown in Figure 7, drive circuit adopts DRV8301DCA.Wherein, 2 pin are connected to one end of C35, C36, R28, R29, and the R29 other end is connected to C39 one end, and the other end of C35, C36, C39 and R26 is connected to GND; 3 pin are connected to one end of R19 and one end of R20, and the other end of R19 is connected to+3.3V, and the other end of R20 is connected to GND; 4 pin are connected to one end of R26, and the other end of R26 is connected to+3.3V; 5 pin are connected to one end of R12, and the other end of R12 is connected to+3.3V; 6 pin are connected to one end of R13, and the other end of R13 is connected to+3.3V; 7 pin are connected to one end of R14, and the other end is connected to GND; 12 pin are connected to one end of R24, and the other end of R24 is connected to GND; 13 pin are connected to one end of C19, and the other end of C19 is connected to GND; 14 pin are connected to one end of C18, and the other end of C18 is connected to 15 pin; 23 pin are connected to one end of C38, and the other end of C38 is connected to GND; 24 pin are connected to+3.3V; 25 pin are connected to one end of R25, and the other end of R25 is connected to one end of C33, and the other end of C33 is connected to GND; 27 pin are connected to one end of C37, and the other end of C37 is connected to GND; 28 pin are connected to GND; 29 pin are connected to+28V, are connected to one end of C16, C17 simultaneously, and the other end of C16, C17 is connected to GND; 36 pin are connected to one end of C26, and the other end of C26 is connected to 38 pin; 41 pin are connected to one end of C25, and the other end of C25 is connected to 43 pin; 46 pin are connected to one end of C23, and the other end of C23 is connected to 48 pin; 49 pin are connected to one end of C24, are connected to+3.3V simultaneously, and the other end of C24 is connected to GND; 52 pin are connected to one end of C29, the other end of C29 is connected to 50 pin, 51 pin, be connected to one end of L3, D1, the other end of one end and+3.3V, D1 that the other end of L3 is connected to C30, C31, C32 is connected to the other end and the GND of C30, C31, C32 simultaneously; 53 pin are connected to 54 pin, one end of C27, one end of C28 ,+28V, the C27 other end, the C28 other end are connected to GND; 57 pin are connected to GND.
17 pin of drive circuit DRV8301DCA chip are connected to 29 pin of control circuit TMS320F28027 chip, 18 pin of drive circuit DRV8301DCA chip are connected to 28 pin of control circuit TMS320F28027 chip, 19 pin of drive circuit DRV8301DCA chip are connected to 37 pin of control circuit TMS320F28027 chip, 20 pin of drive circuit DRV8301DCA chip are connected to 38 pin of control circuit TMS320F28027 chip, 21 pin of drive circuit DRV8301DCA chip are connected to 39 pin of control circuit TMS320F28027 chip, 22 pin of drive circuit DRV8301DCA chip are connected to 40 pin of control circuit TMS320F28027 chip, therefore, drive circuit is by 17 pin, 18 pin, 19 pin, 20 pin, the 6 road pwm signals that 21 pin and 22 pin reception control circuits export.
35 pin of drive circuit DRV8301DCA chip are connected to the GL_C of inverter circuit TR-CSD18533Q5A chip, 37 pin of drive circuit DRV8301DCA chip are connected to the GH_C of inverter circuit TR-CSD18533Q5A, 40 pin of drive circuit DRV8301DCA chip are connected to the GL_B of inverter circuit TR-CSD18533Q5A, 42 pin of drive circuit DRV8301DCA chip are connected to the GH_B of inverter circuit TR-CSD18533Q5A, 45 pin of drive circuit DRV8301DCA chip are connected to the GL_A of inverter circuit TR-CSD18533Q5A, 47 pin of drive circuit DRV8301DCA chip are connected to the GH_A of inverter circuit TR-CSD18533Q5A, therefore, drive circuit is by 35 pin, 37 pin, 40 pin, 42 pin, 45 pin and 47 pin export 6 road drive singal to inverter circuit.
By such scheme, drive circuit generates drive singal according to the running parameter preset and pulse-width signal, realizes the object of pulse-width signal being carried out to power amplification.
According to the above embodiments of the present application, as shown in Figure 5, control circuit is connected by Serial Peripheral Interface (SPI) with drive circuit.
In the optional scheme of one, control circuit exports default running parameter to drive circuit by Serial Peripheral Interface (SPI) (SPI interface), and drive circuit is by this running parameter preset of SPI interface.
As shown in Figure 3 and Figure 7,8 pin of drive circuit DRV8301DCA chip are connected to 25 pin of control circuit TMS320F28027 chip, 9 pin of drive circuit DRV8301DCA chip are connected to 27 pin of control circuit TMS320F28027 chip, 10 pin of drive circuit DRV8301DCA chip are connected to 26 pin of control circuit TMS320F28027 chip, and 11 pin of drive circuit DRV8301DCA chip are connected to 24 pin of control circuit TMS320F28027 chip.25 pin of drive circuit DRV8301DCA chip are chip select line SCS port, and 27 pin of control circuit are input line SDI port, and 26 pin of control circuit are output line SDO port, and 24 pin of control circuit are clock line SCLK port.
According to the above embodiments of the present application, as shown in Figure 5, control circuit is by serial bus interface received code data.
In the optional scheme of one, control circuit is by serial bus interface (I
2c interface) be connected with inserting tube, receive the coded data that inserting tube exports.
As shown in Figure 3, in the optional scheme of one, control circuit is connected with inserting tube with 36 pin by 31 pin, and 31 pin are I
2c data wire SDA port, 36 pin are I
2c clock line SCL port.
According to the above embodiments of the present application, as shown in Figure 5, said system also comprises:
Battery pack, is electrically connected with inverter circuit and drive circuit respectively, for power supply.
In the optional scheme of one, above-mentioned battery pack can be+28V battery pack, for drive circuit and inverter circuit are powered.
It should be noted that herein, 1 pin OCTW of control circuit TMS320F28027 chip is connected to 5 pin of drive circuit DRV8301DCA chip, 48 pin FAULT of control circuit TMS320F28027 chip are connected to 6 pin of drive circuit DRV8301DCA chip, connected by above-mentioned pin, rub-out signal is sent to control circuit by drive circuit, i.e. rub-out signal in Fig. 5.41 pin DC-CAL of control circuit TMS320F28027 chip are connected to 12 pin of drive circuit DRV8301DCA chip, for realizing the calibration of drive circuit DRV8301DCA chip direct current offset.42 pin EN-GATE of control circuit TMS320F28027 chip are connected to 16 pin of drive circuit DRV8301DCA chip, and the drive singal for enable DRV8301DCA chip exports and chip internal electric current monitor.
13 pin I-FB of control circuit TMS320F28027 chip connect 25 pin of drive circuit DRV8301DCA chip, and connected by above-mentioned pin, bus current is fed back to control circuit by drive circuit, i.e. Fig. 5 median generatrix electric current.
32 pin of drive circuit DRV8301DCA chip are connected to the ISENSE_P of inverter circuit TR-CSD18533Q5A, 33 pin of drive circuit DRV8301DCA chip are connected to the ISENSE_N of inverter circuit TR-CSD18533Q5A, by the connection of above-mentioned pin, bus current is fed back to drive circuit by inverter circuit, the bus current feedback namely in Fig. 5.34 pin of drive circuit DRV8301DCA chip are connected to the SL_C of inverter circuit TR-CSD18533Q5A, 36 pin of drive circuit DRV8301DCA chip are connected to the SH_C of inverter circuit TR-CSD18533Q5A, 39 pin of drive circuit DRV8301DCA chip are connected to the SL_B of inverter circuit TR-CSD18533Q5A, 41 pin of drive circuit DRV8301DCA chip are connected to the SH_B of inverter circuit TR-CSD18533Q5A, 44 pin of drive circuit DRV8301DCA chip are connected to the SL_A of inverter circuit TR-CSD18533Q5A, 46 pin of drive circuit DRV8301DCA chip are connected to the SH_A of inverter circuit TR-CSD18533Q5A.By the connection of above-mentioned pin, inverter circuit is connected to motor after DC power supply is converted to AC power.
By the connection of above-mentioned pin, when drive circuit occurs rub-out signal, bus current overcurrent or breaks down, feed back signal to control circuit, thus reach the object of protective circuit.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
In several embodiments that the application provides, should be understood that, disclosed technology contents, the mode by other realizes.Wherein, device embodiment described above is only schematic, the such as division of described unit, can be that a kind of logic function divides, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of unit or module or communication connection can be electrical or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple unit.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprises all or part of step of some instructions in order to make a computer equipment (can be personal computer, server or the network equipment etc.) perform method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), portable hard drive, magnetic disc or CD etc. various can be program code stored medium.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. for a method for drive motor, it is characterized in that, comprising:
Control circuit, according to the terminal voltage of the coded data of input with the motor collected, generates pulse-width signal, and exports described pulse-width signal to inverter circuit;
DC power supply, according to described pulse-width signal, is converted to AC power by described inverter circuit, and exports described AC power to motor;
Described motor works under the drive of described AC power.
2. method according to claim 1, is characterized in that, at described inverter circuit according to described pulse-width signal, after DC power supply is converted to AC power, described method also comprises:
The terminal voltage of motor described in terminal voltage detecting electric circuit inspection, and export described terminal voltage to described control circuit.
3. method according to claim 2, is characterized in that, control circuit, according to the terminal voltage of the coded data of input with the motor collected, generates pulse-width signal and comprises:
Described control circuit, according to described coded data and described terminal voltage, generates described pulse-width signal.
4. method according to claim 3, is characterized in that, at described control circuit according to described coded data and described terminal voltage, after generating described pulse-width signal, described method also comprises:
Drive circuit receives the described pulse-width signal that described control circuit exports;
Described drive circuit, according to the running parameter preset and described pulse-width signal, obtains drive singal;
Described drive circuit exports described drive singal to described inverter circuit.
5. for a system for drive motor, it is characterized in that, comprising:
Control circuit, for according to the coded data of input and the terminal voltage of the motor collected, generates pulse-width signal;
Inverter circuit, is electrically connected with described control circuit, for according to described pulse-width signal, DC power supply is converted to AC power;
Motor, is electrically connected with described inverter circuit, for working under the drive of described AC power.
6. system according to claim 5, is characterized in that, described system also comprises:
Terminal voltage detecting circuit, is electrically connected with described inverter circuit and described control circuit respectively, for detecting the terminal voltage of described motor.
7. system according to claim 5, is characterized in that, described system also comprises:
Drive circuit, is connected between described control circuit and described inverter circuit, for according to the running parameter preset and described pulse-width signal, generates drive singal.
8. system according to claim 7, is characterized in that, described control circuit is connected by Serial Peripheral Interface (SPI) with described drive circuit.
9. according to the system in claim 5 to 8 described in any one, it is characterized in that, described control circuit receives described coded data by serial bus interface.
10. according to the system in claim 9 described in any one, it is characterized in that, described system also comprises:
Battery pack, is electrically connected with described inverter circuit and drive circuit respectively, for power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510967731.8A CN105490617A (en) | 2015-12-21 | 2015-12-21 | Method and system for driving motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510967731.8A CN105490617A (en) | 2015-12-21 | 2015-12-21 | Method and system for driving motor |
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| CN105490617A true CN105490617A (en) | 2016-04-13 |
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| CN201510967731.8A Pending CN105490617A (en) | 2015-12-21 | 2015-12-21 | Method and system for driving motor |
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| CN110091579A (en) * | 2018-01-30 | 2019-08-06 | 住友重机械工业株式会社 | DC-to-AC converter, roll-to-roll transportation system and motor control system |
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Application publication date: 20160413 |