CN1077319A - DC shunt or compound excitation motor with controllable dynamic characteristics and its circuit device - Google Patents
DC shunt or compound excitation motor with controllable dynamic characteristics and its circuit device Download PDFInfo
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- CN1077319A CN1077319A CN92102692.7A CN92102692A CN1077319A CN 1077319 A CN1077319 A CN 1077319A CN 92102692 A CN92102692 A CN 92102692A CN 1077319 A CN1077319 A CN 1077319A
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- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 51
- 230000001965 increasing effect Effects 0.000 claims description 15
- 230000002964 excitative effect Effects 0.000 claims description 14
- 238000013329 compounding Methods 0.000 claims description 8
- 230000001939 inductive effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
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Abstract
A DC separately excited (or multi-excited) motor with controllable dynamic characteristics and its circuit device mainly has a set of separately excited magnetic fields of basic exciting current, the magnetic field current increases with the increase of armature load current to generate the characteristics of approximate series excited motor, and the increase of magnetic field exciting current is stopped after reaching the maximum set value to generate the characteristics of approximate separately excited motor; besides single machine, the present invention can also further comprise two machines which are cross-interlocked to achieve synchronous or proportional operation. The method is characterized in that the magnetic field current values of adjacent motors are controlled in a proportional manner according to the detection of the armature load current value of the first group of motors, and the magnetic field of the first group of motors is controlled in a proportional manner according to the detection of the armature current value of the final motor.
Description
The present invention system relates to a kind of DC divided (or compounding) motor and circuit arrangement thereof with controllable dynamic property.
Traditional direct current machine, the running efficiency height of shunt excitation type, but starting torque is less, the series excitation type then have a bigger starting torque, but running efficiency is lower because of the magnetic field droop loss.
The purpose of this invention is to provide a kind of DC divided (or compounding) motor and circuit arrangement thereof with controllable dynamic property, be mainly shunt field with one group of basic exciting curent, and the magnetic field that increases with the electric loading electric current, so that produce the characteristic of approximate series motor, and after arriving maximum set value, stop to increase the magnetic field exciting curent, so that produce the characteristic of approximate shunt excitation motor.
Describe embodiments of the invention below with reference to the accompanying drawings in detail.
Fig. 1 is the principle schematic of DC divided (or compounding) motor of controllable dynamic property,
Fig. 2 is the schematic diagram of the embodiment of active member and the auxiliary magnetic field winding WF202 that links to each other with magnetic field winding WF201 same polarity.
Fig. 3 is with adding impedance Z 301(such as resistance or inductance) replace the schematic diagram of the described auxiliary magnetic field winding embodiment of Fig. 2.
Fig. 4 constitutes the d.c. motor with controllable dynamic property of interlocking and the circuit diagram of circuit arrangement thereof by two groups of motors.
Main composition of the present invention as shown in Figure 1 comprises:
-main shunt field winding the WF101 that connects the back with active member AD101 and link with power supply;
-active member AD101, it is the solid switch element with preposition amplification, and comprises elements such as power transistor, thyratron, and wherein power transistor is applicable to direct current or pulsating direct current, and thyratron is then controlled section ripple DC power supply with zero crossing;
-excitatory control switch FS101, it is used for controlling active member AD101 and carries out basic exciting curent selection, comprises and accepts automatically controlled interface or manual control, to form control speed or the recoverable dynamic brake of the excitatory start of on-stream increasing;
-direct current machine armature A101, it can be external with the double-throw forward-reverse switch, and with link with DC power supply again after armature supply detecting element S101 connects;
-detecting element the S101 that constitutes by series excitation winding or dropping resistor (or reactance coil), to provide the reference signal relative to drive active member AD101 with armature current value, its control relation is: when armature supply increases with load, reference signal is stronger, and then active member AD101 impedance is lower; And increase the exciting curent of magnetic field WF101 is exported torque to improve.
The lower limit that the motor of above-mentioned formation is a kind of to have speed limit, a shunt excitation characteristic with and bound between have series characteristic.
The operating characteristics of Fig. 1 is as follows:
When electric current flows into armature A101, armature since with the action of a magnetic field relation, because of the further controlling magnetic field WF101 of the detection signal control active member AD101 of detecing element group S101, form the d.c. motor of controllable dynamic property; In addition, its dynamic characteristic is shown in Fig. 1-A, compare with former series motor characteristic curve, the main field that its shunt field winding is had forms has a confined speed limit ab characteristic section, since armature supply detecing element S101 detect and control active member AD101 so make field supply with armature supply increase and decrease constituting the bc active section of approximate series motor characteristic, and in magnetic field because of saturated or be limited no longer to increase the cd active section that presents approximate shunt excitation motor characteristics after excitatory.
Fig. 2 and Fig. 3 are respectively further circuit application example of the present invention.
The embodiment of the auxiliary magnetic field winding WF202 of the same polarity that Fig. 2 links for active member and magnetic field winding WF201, its main composition comprises:
-shunt field winding WF201 and auxiliary magnetic field winding WF202 same polarity are connected mutually, and its auxiliary magnetic field winding is parallel to the both sides of active member AD201;
-armature A201 is with in parallel with power supply again after detecting element S201 is in series;
-excitatory control switch FS201 is to active member AD201 control and do basic exciting curent selection, comprises and accepts automatically controlled interface or Artificial Control, so that make control speed or the recoverable dynamic brake of the excitatory start of on-stream increasing.
The operating characteristics of Fig. 2 is as follows:
When armature supply is too small, the current signal that detecting element S101 is detected is also less, active member AD201 is high impedance status, this moment, field supply intensity was inversely proportional to the resistance value of shunt field winding WF201 and the auxiliary magnetic field winding WF202 that connected, and basic exciting curent can be kept the rotating speed upper limit of armature rotating speed in its back electromotive force (EMF) and the mutual balance of power supply; When its load increased gradually, magnetic field made motor produce the performance of similar series motor because of the impedance reduction exciting curent of active member AD201 increases gradually; When active member AD201 arrived the saturation condition of lowest impedance, magnetic field was maximum excitatory state, and motor is the characteristic of similar shunt excitation.
Fig. 3 is for to add impedance Z 301(such as resistance or inductance) replace the schematic diagram of auxiliary magnetic field winding embodiment shown in Figure 2, its main composition comprises:
-impedance Z 301 is for resistive or inductive or capacitive character or have the impedance of mixed nature, and connects with shunt field winding WF301 and in parallel with active member AD301;
-armature A301 is with in parallel with power supply again after detecting element S301 is in series;
-excitatory control switch FS301 does basic exciting curent selection for active member AD301 is controlled, and comprises and accepts automatically controlled interface or Artificial Control, to form the fast or recoverable dynamic brake of the excitatory start of on-stream increasing of control.
The operating characteristics of Fig. 3 is as follows:
When armature supply is too small, the current signal that detecting element S301 is detected is also less, active member AD301 is high impedance status, this moment, the resistance value of the impedance Z 301 that field supply intensity is connected with shunt field winding WF301 was inversely proportional to, so that basic exciting curent can be kept the armature rotating speed in the rotating speed upper limit of its back electromotive force (EMF) with the mutual balance of power supply; When its load increased gradually, magnetic field made motor produce the performance of similar series motor because of the impedance reduction exciting curent of active member AD301 increases gradually; When active member AD301 arrived the saturation condition of lowest impedance, magnetic field was maximum excitatory state, and motor is the characteristic of similar shunt excitation.
The present invention is except unit constitutes, comprise further that also two machines intersect interlocking with the function of reaching synchronously or ratio turns round, it is characterized in that relying on first group of motor the electric loading current value detect the field supply value of controlling adjacent motor (forward or backward all can) with direct ratio, and, groups of motors is synchronously or near-synchronous or make the ratio operating condition according to the magnetic field of controlling first group of motor with direct ratio that detects of the armature current value of final motor.
Fig. 4 is for to constitute the tool controllable dynamic property d.c. motor of interlocking and the line map of circuit arrangement thereof by two groups of motors, and its main composition comprises:
The shunt field winding WF401 of-the first groups of motors and auxiliary magnetic field winding WF411 same polarity are connected mutually, its auxiliary magnetic field winding WF411 and in active member AD401 in the both sides parallel connection; Armature A401 with after detecting element S401 connects mutually again in the power supply parallel connection;
The shunt field winding WF402 of-the second groups of motors and auxiliary magnetic field winding WF412 same polarity are connected mutually, its auxiliary magnetic field winding WF412 and in active member AD402 in the both sides parallel connection; Armature A402 is with in parallel in power supply again after detecting element S402 is in series;
The detection signal of-detecting element the S401 that the above-mentioned first groups of motors armature A401 is connected is to send the active member AD402's that controls the second groups of motors magnetic field winding to; The detection signal of the detecting element S402 that the second groups of motors armature A402 is connected is to send to the active member AD401 that controls the first groups of motors magnetic field winding and form interlocking;
The control of-above-mentioned interlock circuit comprises when wherein one group of motor is because of attenuating of load increasing armature rotating speed and electric current increasing, the detecting element signal of connecting with its armature will strengthen, and then the impedance of controlling the active member that another group motor magnetic field winding connected reduces, add the high-intensity magnetic field exciting curent, make the rotating speed of another group motor armature strengthen making motor armature reduce rotating speed simultaneously because of magnetic field flux;
The auxiliary winding WF411 in-above-mentioned two motor magnetic fields and WF412 can determine whether be provided with as required; Or replaced by other resistives or inductive or capacitive character or impedance component with mixed nature;
-control active member AD401 and the AD402 that two motor magnetic field windings are connected respectively by excitatory control switch FS401 and FS402, but make between two motors the magnetic field fundamental strength different and do the ratio running, its kinetic energy feedback function is also described with the front.
The embodiment of earlier figures 1 to 4 is applied to compound excitation motor except that characteristic bc slope over 10 difference, and its complementary characteristic homogeneous phase together.
The present invention has disclosed a kind of have DC divided (or compounding) motor of controllable dynamic property and circuit arrangement thereof, this motor has the similar series motor load torque characteristic relevant with speed, but it has upper limit speed, and lower limit speed with shunt excitation motor load characteristic, its similar series characteristic is then less because of the magnetic field exciting curent, the preferable efficient of shunt excitation motor that has is particularly outstanding as the performance of controlling and recover kinetic energy is controlled, except that the unit running, and can two machine interlockeds synchronously or the ratio running, its function is superior, and wound is thought Nover practical.
Claims (4)
1, a kind of have DC divided (or compounding) motor of controllable dynamic property and circuit arrangement mainly comprises the shunt field with one group of basic exciting curent, this magnetic field is also strengthened with the increase of electric loading electric current, so that produce the characteristic of approximate series motor, and after arriving maximum set value, stop to increase the magnetic field exciting curent, to produce the characteristic of approximate shunt excitation motor, it is characterized in that its main composition comprises:
-main shunt field winding WF101 and in parallel with power supply in active member AD101 series connection back;
-active member AD101 is that the elements such as power transistor, thyratron that contain with preposition amplification solid switch element constitute, and wherein power transistor is for being applicable to direct current or pulsating direct current, and thyristor then may command has section ripple DC power supply of zero crossing;
-excitatory control switch FS101 is used for controlling the selection that active member AD101 makes basic exciting curent, comprises accepting automatically controlled interface or Artificial Control, to constitute control speed or the recoverable dynamic brake of the excitatory start of on-stream increasing;
-direct current machine armature A101 can external double-throw forward-reverse switch, and the back of connecting with armature supply detecting element S101 is in parallel with DC power supply;
-detecting element S101 is made of series excitation winding or dropping resistor (or reactance coil), drive active member AD101 to provide with the corresponding reference signal of armature current value, its control relation is for when armature supply increases with mutual section, reference signal is stronger, and the impedance of active member AD101 is lower, increases the exciting curent of magnetic field WF101 is exported torque to improve;
The lower limit that above-mentioned motor has speed limit, a shunt excitation characteristic with and bound between have series characteristic;
Its operating characteristics is as follows:
When electric current flows into armature A101, armature be owing to will constitute active member AD101 by the detection signal control of detecting element group S101 with the interactively in magnetic field, and further control magnetic field WF101, the d.c. motor of formation controllable dynamic property; In addition, its dynamic characteristic is compared with former series motor characteristic song, the main field formation that is had by the shunt field winding has a confined speed limit ab characteristic section, because armature supply detecting element S101 detects and controls active member AD101 and then field supply is increased and decreased with armature supply, constituting the bc active section of approximate series motor characteristic, and in magnetic field because of saturated or be limited no longer to increase the cd active section that presents approximate shunt excitation motor characteristics after excitatory.
2, DC divided (or compounding) motor and the circuit arrangement thereof with controllable dynamic property as claimed in claim 1 is characterized in that further being that active member is in parallel with magnetic field winding WF201 same polarity auxiliary magnetic field winding WF202, and its main composition comprises:
-shunt field winding WF201 connects mutually with auxiliary magnetic field winding WF202 same polarity, and its auxiliary magnetic field winding is also in parallel with active member AD201 both sides;
-armature A201 and detecting element S201 are in series, and in parallel with power supply;
-excitatory control switch FS201 controls active member AD201 and makes basic exciting curent and select, and comprises and accepts automatically controlled interface or manual control, to form control speed or the recoverable dynamic brake of the excitatory start of on-stream increasing;
Its operating characteristics is as follows:
When armature supply is too small, detecting element S101 institute sensed current signal is also less, active member AD201 is high impedance status, this moment, field supply intensity was inversely proportional to the resistance value of the shunt field winding WF201 and the auxiliary magnetic field winding WF202 that connects, and so basic exciting curent can be kept the armature rotating speed in the rotating speed upper limit of its back-emf (EMF) with the mutual balance of power supply; When its load increased gradually, magnetic field made motor produce the performance of similar series motor because of the impedance reduction exciting curent of active member AD201 increases gradually; When active member AD201 arrived the saturation condition of lowest impedance, magnetic field was maximum excitatory state, and motor is the characteristic of similar shunt excitation.
3, DC divided (or compounding) motor of tool controllable dynamic property as claimed in claim 1 and circuit arrangement thereof is characterized in that further being to add impedance Z 301(such as resistance or inductance) replace the auxiliary magnetic field winding, its main composition comprises:
-impedance Z 301 is for resistive or inductive or capacitive character or have the impedance of mixed nature, and with in parallel with active member AD301 again after shunt field winding WF301 connects;
-armature A301 with after detecting element S301 connects mutually again in the power supply parallel connection;
-excitatory control switch FS301 accepts automatically controlled interface or manual control for active member AD301 being controlled and make basic exciting curent and select, comprising, to form the fast or recoverable dynamic brake of the excitatory start of on-stream increasing of control;
Its operating characteristics is as follows:
When armature supply is too small, the current signal that detecting element S301 is detected is also less, and active member AD301 is high impedance status, this moment, field supply intensity was inversely proportional to the resistance value of the shunt field winding WF301 and the impedance Z 301 of being connected, and so basic exciting curent can be kept the rotating speed upper limit of armature rotating speed in its back-emf (EMF) and the mutual balance of power supply; When its load increased gradually, magnetic field made motor produce the performance of similar series motor because of the impedance reduction exciting curent of active member AD301 increases gradually; When active member AD301 arrived the saturation condition of lowest impedance, magnetic field was maximum excitatory state, and motor is the characteristic of similar shunt excitation.
4, DC divided (or compounding) motor of tool controllable dynamic property as claimed in claim 1 and circuit arrangement thereof, it is characterized in that except that unit constitutes, and comprise that further two machines intersect interlocking with the function that forms synchronously or ratio turns round, the detected value that it is characterized in that the electric loading current value by first group of motor is with the field supply value of the adjacent motor of direct ratio control (forward or backward all can), and the magnetic field of controlling first group of motor by the detection of final motor armature current value with direct ratio, groups of motors is synchronously or near-synchronous or do the ratio running, main its main constitute comprise:
The shunt field winding WF401 of-the first groups of motors and auxiliary magnetic field winding WF411 same polarity are connected mutually, and WF411 is in parallel in both sides with active member AD401 for its auxiliary magnetic field winding; Armature A401 is with in parallel with power supply again after detecting element S401 is in series;
The shunt field winding WF402 of-the second groups of motors and auxiliary magnetic field winding WF412 same polarity are connected mutually, and WF412 is in parallel in both sides with active member AD402 for its auxiliary magnetic field winding; Armature A402 is with in parallel with power supply again after detecting element S402 is in series;
The detection signal of-detecting element the S401 that the above-mentioned first groups of motors armature A401 is connected is controlled the active member AD402 of the second groups of motors magnetic field winding; The detection signal of the detecting element S402 that the second groups of motors armature A402 is connected goes to control the active member AD401 of the first groups of motors magnetic field winding and forms interlocking;
The control of-above-mentioned interlock circuit comprises: when wherein one group of motor is because of attenuating of load increasing armature rotating speed and electric current increasing, the detecting element signal of connecting with its armature will strengthen, and then the impedance of controlling the active member that another group motor magnetic field winding connected reduces, and then add the high-intensity magnetic field exciting curent, and another group motor armature rotating speed is strengthened because of magnetic field flux, and make motor armature reduce rotating speed simultaneously;
Auxiliary winding WF411 in-above-mentioned two motor magnetic fields and WF412 can determine whether be provided with as required; Or replaced with other resistives or inductive or capacitive character or impedance component with mixed nature;
-control active member AD401 and the AD402 that two motor magnetic field windings are connected respectively by excitatory control switch FS401 and FS402, make between two motors and can do ratio running and kinetic energy back coupling because of the magnetic field fundamental strength is different.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92207031.8U CN2128431Y (en) | 1992-04-11 | 1992-04-11 | DC shunt or compound excitation motors with controllable dynamic characteristics |
| CN92102692.7A CN1032508C (en) | 1992-04-11 | 1992-04-11 | DC shunt or complex excitation motor device with controllable dynamic characteristics |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92207031.8U CN2128431Y (en) | 1992-04-11 | 1992-04-11 | DC shunt or compound excitation motors with controllable dynamic characteristics |
| CN92102692.7A CN1032508C (en) | 1992-04-11 | 1992-04-11 | DC shunt or complex excitation motor device with controllable dynamic characteristics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1077319A true CN1077319A (en) | 1993-10-13 |
| CN1032508C CN1032508C (en) | 1996-08-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92207031.8U Expired - Lifetime CN2128431Y (en) | 1992-04-11 | 1992-04-11 | DC shunt or compound excitation motors with controllable dynamic characteristics |
| CN92102692.7A Expired - Fee Related CN1032508C (en) | 1992-04-11 | 1992-04-11 | DC shunt or complex excitation motor device with controllable dynamic characteristics |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92207031.8U Expired - Lifetime CN2128431Y (en) | 1992-04-11 | 1992-04-11 | DC shunt or compound excitation motors with controllable dynamic characteristics |
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| Country | Link |
|---|---|
| CN (2) | CN2128431Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546079A (en) * | 2012-07-10 | 2014-01-29 | 北京友信宏科电子科技有限公司 | Novel method and novel device for controlling series excited motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9806651B1 (en) * | 2016-05-17 | 2017-10-31 | General Electric Company | DC electrical machine with center-tap windings systems and methods |
-
1992
- 1992-04-11 CN CN92207031.8U patent/CN2128431Y/en not_active Expired - Lifetime
- 1992-04-11 CN CN92102692.7A patent/CN1032508C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546079A (en) * | 2012-07-10 | 2014-01-29 | 北京友信宏科电子科技有限公司 | Novel method and novel device for controlling series excited motor |
| CN103546079B (en) * | 2012-07-10 | 2017-02-08 | 北京友信宏科电子科技有限公司 | Novel method and novel device for controlling series excited motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN2128431Y (en) | 1993-03-17 |
| CN1032508C (en) | 1996-08-07 |
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