CN204086484U - A kind of motor driver load equivalent analogue means based on rotary transformer - Google Patents
A kind of motor driver load equivalent analogue means based on rotary transformer Download PDFInfo
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- CN204086484U CN204086484U CN201420484884.8U CN201420484884U CN204086484U CN 204086484 U CN204086484 U CN 204086484U CN 201420484884 U CN201420484884 U CN 201420484884U CN 204086484 U CN204086484 U CN 204086484U
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Abstract
The utility model belongs to a kind of load equivalent analogue means, specifically a kind of motor driver load equivalent analogue means based on rotary transformer is disclosed, revolve to become and change depressor simulator and comprise excitation equivalent electrical circuit, sinusoidal equivalent electrical circuit, cosine equivalent electrical circuit, excitation equivalent electrical circuit, sinusoidal equivalent electrical circuit, cosine equivalent electrical circuit become equivalent output interface be connected with revolving of motor driver respectively; Motor load simulator comprises U phase load equivalent electrical circuit, V phase load equivalent electrical circuit, W threephase load equivalent electrical circuit, one end of U phase load equivalent electrical circuit, V phase load equivalent electrical circuit, W threephase load equivalent electrical circuit is interconnected, and the other end of U phase load equivalent electrical circuit, V phase load equivalent electrical circuit, W threephase load equivalent electrical circuit is connected with the motor power output interface of motor driver separately.Device of the present utility model makes the volume and weight of motor driver test fixture greatly reduce, and structure is simple, and easy to operate, cost is low.
Description
Technical field
The utility model belongs to a kind of load equivalent analogue means, is specifically related to a kind of motor driver load equivalent analogue means based on rotary transformer.
Background technology
Along with developing rapidly of electromechanical servo technology, permanent-magnet servo motor replaces brush motor to become the main trend of current technological development.Continuous running due to permanent-magnet servo motor needs the accurate commutation of Electronic Control, and it controls complexity also increases greatly, needs to have been come by special permanent-magnet servo motor driver.
Permanent-magnet servo motor driver becomes the necessary devices that permanent-magnet servo motor running controls.In driver mass production process, need whole process to carry out band to driver functions circuit and carry examination, comprise the forceful electric power power circuit of drive motor running.Power circuit is made up of three-phase six groups of power devices, circulation one circle existence eight kinds of circuit states, its on off state switches by front-end controlling circuit according to the decision of position signalling coding, therefore will carry out total state equilibrium examination to actuator power circuit, just need the position signalling producing Periodic Rotating.
Summary of the invention
The purpose of this utility model is to provide a kind of motor driver load equivalent analogue means based on rotary transformer, this device can produce periodically variable rotating position signal, and the volume and weight of motor driver test fixture is reduced greatly, and structure is simple, easy to operate, cost is low.
Realize the technical scheme of the utility model object: a kind of motor driver load equivalent analogue means based on rotary transformer, this device comprises the rotation transformation simulator be connected with motor driver, the motor load simulator be connected with motor driver, revolve to become and change depressor simulator and comprise excitation equivalent electrical circuit, sinusoidal equivalent electrical circuit, cosine equivalent electrical circuit, excitation equivalent electrical circuit, sinusoidal equivalent electrical circuit, cosine equivalent electrical circuit become equivalent output interface be connected with revolving of motor driver respectively; Motor load simulator comprises U phase load equivalent electrical circuit, V phase load equivalent electrical circuit, W threephase load equivalent electrical circuit, one end of U phase load equivalent electrical circuit, V phase load equivalent electrical circuit, W threephase load equivalent electrical circuit is interconnected, and the other end of U phase load equivalent electrical circuit, V phase load equivalent electrical circuit, W threephase load equivalent electrical circuit is connected with the motor power output interface of motor driver separately.
Described excitation equivalent electrical circuit is composed in series by field coil equivalent resistance and field coil equivalent inductance, the revolving of one end of field coil equivalent resistance and motor driver becomes equivalent output interface S1 and is connected, the other end of field coil equivalent resistance is connected with one end of field coil equivalent inductance, and the revolving of the other end of field coil equivalent inductance and motor driver becomes equivalent output interface S4 and be connected.
Described sinusoidal equivalent electrical circuit is composed in series by sine coil equivalent resistance and sine coil equivalent inductance, the revolving of one end of sine coil equivalent resistance and motor driver becomes equivalent output interface S2 and is connected, the other end of sine coil equivalent inductance is connected with one end of sine coil equivalent inductance, and the revolving of the other end of sine coil equivalent inductance and motor driver becomes equivalent output interface S5 and be connected.
Described cosine equivalent electrical circuit is composed in series by cosine coil equivalent resistance and cosine coil equivalent inductance, the revolving of one end of cosine coil equivalent resistance and motor driver becomes equivalent output interface S3 and is connected, the other end of cosine coil equivalent resistance is connected with one end of cosine coil equivalent inductance, and the revolving of the other end of cosine coil equivalent inductance and motor driver becomes equivalent output interface S6 and be connected.
Described U phase load equivalent electrical circuit is made up of U phase load equivalent resistance, U phase load equivalent inductance, one end of U phase load equivalent resistance is connected with the U phase motor power output interface of motor driver, and the other end of U phase load equivalent resistance R4 is connected with one end of U phase load equivalent inductance L4.
Described V phase load equivalent electrical circuit is made up of V phase two load equivalent resistance, V phase load equivalent inductance; One end of V phase load equivalent resistance is connected with the V phase motor power output interface of motor driver, and the other end of V phase load equivalent resistance is connected with one end of V phase load equivalent inductance.
Described W threephase load equivalent electrical circuit is made up of W phase load equivalent resistance, W phase load equivalent inductance; One end of W phase load equivalent resistance is connected with the W phase motor power output interface of motor driver, and the other end of W phase load equivalent resistance is connected with one end of W phase load equivalent inductance; Be connected to each other between the other end of the other end of described U phase load equivalent inductance, the other end of V phase load equivalent inductance, W phase load equivalent inductance.
Advantageous Effects of the present utility model is: (1) the utility model rotary transformer load equivalent device produces periodically variable rotating position signal, after receiving this position signalling, driver according in the control strategy established realize the switching according to the order of sequence of power circuit one week eight state, thus realizing the alternate conduction of three-phase six groups of power devices, simulated machine operates continuously.(2) the utility model achieves to revolve and becomes that to change depressor equivalence given, and in cycle alternation, and produce three phase control drive singal through SVPWM, can the duty of real simulation servo control mechanism motor driver when carrying out continuous action, examination comprehensively, structure is simple, eliminates actual electromechanical servo actuator, reduces production cost.(3) the utility model changes the simulation of depressor simulator rotating speed with revolving to become, and namely produces the motor rotor position signal that alternation rotates, and according to SVPWM control strategy, generate three phase electric machine drive singal, through the examination of motor load simulator closed loop, this device small volume and less weight, cost is low and practical.(4) the utility model makes the test of motor driver and the course of receiving no longer need real servo actuator or motor, only needs a set of load simulating device, simplifies test tool and testing process, reduces production cost.(5) application of the present utility model, makes the volume and weight of motor driver test fixture greatly reduce, and structure is simple, easy to operate, reduces turnover cost.(6) this device achieves turn signal with simple circuit structure and produces the function such as simulation and motor load equivalence, Closed loop operation can be realized by equivalent replacement servo control mechanism, function is complete, in process of producing product, effectively simplify testing apparatus, serves good effect.
Accompanying drawing explanation
Fig. 1 is the system diagram of a kind of motor driver load equivalent analogue means based on rotary transformer provided by the utility model;
Fig. 2 is the circuit theory diagrams of a kind of motor driver load equivalent analogue means based on rotary transformer provided by the utility model.
In figure: 1. rotate transformation simulator, 101. excitation equivalent electrical circuit, 102. sinusoidal equivalent electrical circuit, 103. cosine equivalent electrical circuit; R1. field coil equivalent resistance, R2. sine coil equivalent resistance, R3. cosine coil equivalent resistance, L1. field coil equivalent inductance, L2. sine coil equivalent inductance, L3. cosine coil equivalent inductance;
2. motor load simulator, 201.U phase load equivalent electrical circuit, 202.V phase load equivalent electrical circuit, 203.W threephase load equivalent electrical circuit 203, R4.U phase load equivalent resistance, R5.V phase load equivalent resistance, R6.W phase load equivalent resistance, L4.U phase load equivalent inductance, L5.V phase load equivalent inductance, L6.W phase load equivalent inductance;
3. motor driver.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of motor driver load equivalent analogue means based on rotary transformer provided by the utility model, this device comprises the rotation transformation simulator 1 be connected with motor driver, the motor load simulator 2 be connected with motor driver.Revolve to become and change depressor simulator 1 and comprise excitation equivalent electrical circuit 101, sinusoidal equivalent electrical circuit 102, cosine equivalent electrical circuit 103, excitation equivalent electrical circuit 101, sinusoidal equivalent electrical circuit 102, cosine equivalent electrical circuit 103 become equivalent output interface be connected with revolving of motor driver 3 respectively.Motor load simulator 2 is connected with the motor power output interface of motor driver 3.Rotate the concurrent working of both transformation simulator 1 and motor load simulator 2, the common load equivalent analogue means forming permanent-magnet servo motor driver.
As Fig. 2 shows, excitation equivalent electrical circuit 101 is composed in series by field coil equivalent resistance R1 and field coil equivalent inductance L1, the revolving of one end of field coil equivalent resistance R1 and motor driver 3 becomes equivalent output interface S1 and is connected, the other end of field coil equivalent resistance R1 is connected with one end of field coil equivalent inductance L1, and the revolving of the other end of field coil equivalent inductance L1 and motor driver 3 becomes equivalent output interface S4 and be connected.Sinusoidal equivalent electrical circuit 102 is composed in series by sine coil equivalent resistance R2 and sine coil equivalent inductance L2, the revolving of one end of sine coil equivalent resistance R2 and motor driver 3 becomes equivalent output interface S2 and is connected, the other end of sine coil equivalent inductance R2 is connected with one end of sine coil equivalent inductance L2, and the revolving of the other end of sine coil equivalent inductance L2 and motor driver 3 becomes equivalent output interface S5 and be connected.Cosine equivalent electrical circuit 103 is composed in series by cosine coil equivalent resistance R3 and cosine coil equivalent inductance L3, the revolving of one end of cosine coil equivalent resistance R3 and motor driver 3 becomes equivalent output interface S3 and is connected, the other end of cosine coil equivalent resistance R3 is connected with one end of cosine coil equivalent inductance L3, and the revolving of the other end of cosine coil equivalent inductance L3 and motor driver 3 becomes equivalent output interface S6 and be connected.
As Fig. 2 shows, motor load simulator 2 comprises U phase load equivalent electrical circuit 201, V phase load equivalent electrical circuit 202, W threephase load equivalent electrical circuit 203.U phase load equivalent electrical circuit 201 is made up of U phase load equivalent resistance R4, U phase load equivalent inductance L4, one end of U phase load equivalent resistance R4 is connected with the U phase motor power output interface of motor driver 3, and the other end of U phase load equivalent resistance R4 is connected with one end of U phase load equivalent inductance L4.V phase load equivalent electrical circuit 202 is made up of V phase two load equivalent resistance R5, V phase load equivalent inductance L5, one end of V phase load equivalent resistance R5 is connected with the V phase motor power output interface of motor driver 3, and the other end of V phase load equivalent resistance R5 is connected with one end of V phase load equivalent inductance L5.W threephase load equivalent electrical circuit 203 is made up of W phase load equivalent resistance R6, W phase load equivalent inductance L6, one end of W phase load equivalent resistance R6 is connected with the W phase motor power output interface of motor driver 3, and the other end of W phase load equivalent resistance R6 is connected with one end of W phase load equivalent inductance L6.Be connected to each other between the other end of the other end of U phase load equivalent inductance L4, the other end of V phase load equivalent inductance L5, W phase load equivalent inductance L6.Motor load simulator 2 is by the resistance connected in three-phase " Y " type and inductance series circuit equivalence machine winding coil, and U, V, W three-phase windings equivalent electrical circuit is identical with inductance with the motor phase windings resistance of permanent-magnet servo motor respectively.
As shown in Fig. 1 and Tu, the principle of work of a kind of motor driver load equivalent analogue means based on rotary transformer provided by the utility model: revolve to become and change after depressor simulator 1 connects motor driver 3, revolving of motor driver 3 becomes excitation signal input excitation equivalent electrical circuit 101, and produce sinusoidal feedback signal by sinusoidal equivalent electrical circuit 102, produce cosine feedback signal by cosine equivalent electrical circuit 103.Sinusoidal feedback signal and cosine feedback signal input motor driver 3, sinusoidal feedback signal and cosine feedback signal are carried out decoding process by motor driver 3, obtain the motor rotor position digital signal coding of equivalence, and carry out SVPWM computing, produce motor U, V, W tri-phase control drive singal, U, V, W tri-phase control drive singal control motor driver 3 power inversion circuit in turn switch produce alternating sinusoidal driving voltage.The sinusoidal drive voltage that motor driver 3 exports enters motor load simulator 2, in the threephase load equivalent electrical circuit of motor load simulator 2 and U phase load equivalent electrical circuit 201, V phase load equivalent electrical circuit 202, W threephase load equivalent electrical circuit 203, form sinusoidal drive electric current, thus realize the simulation of motor driver load characteristic.
In conjunction with the accompanying drawings and embodiments the utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.The content be not described in detail in the utility model all can adopt prior art.
Claims (7)
1. the motor driver load equivalent analogue means based on rotary transformer, it is characterized in that: this device comprises the rotation transformation simulator (1) be connected with motor driver, the motor load simulator (2) be connected with motor driver, revolve change transformation depressor simulator (1) and comprise excitation equivalent electrical circuit (101), sinusoidal equivalent electrical circuit (102), cosine equivalent electrical circuit (103), excitation equivalent electrical circuit (101), sinusoidal equivalent electrical circuit (102), cosine equivalent electrical circuit (103) becomes equivalent output interface be connected with revolving of motor driver (3) respectively, motor load simulator (2) comprises U phase load equivalent electrical circuit (201), V phase load equivalent electrical circuit (202), W threephase load equivalent electrical circuit (203), one end of U phase load equivalent electrical circuit (201), V phase load equivalent electrical circuit (202), W threephase load equivalent electrical circuit (203) is interconnected, and the other end of U phase load equivalent electrical circuit (201), V phase load equivalent electrical circuit (202), W threephase load equivalent electrical circuit (203) is connected with the motor power output interface of motor driver (3) separately.
2. a kind of motor driver load equivalent analogue means based on rotary transformer according to claim 1, it is characterized in that: described excitation equivalent electrical circuit (101) is composed in series by field coil equivalent resistance (R1) and field coil equivalent inductance (L1), the revolving of one end of field coil equivalent resistance (R1) and motor driver (3) becomes equivalent output interface S1 and is connected, the other end of field coil equivalent resistance (R1) is connected with one end of field coil equivalent inductance (L1), the revolving of the other end of field coil equivalent inductance (L1) and motor driver (3) becomes equivalent output interface S4 and is connected.
3. a kind of motor driver load equivalent analogue means based on rotary transformer according to claim 2, it is characterized in that: described sinusoidal equivalent electrical circuit (102) is composed in series by sine coil equivalent resistance (R2) and sine coil equivalent inductance (L2), the revolving of one end of sine coil equivalent resistance (R2) and motor driver (3) becomes equivalent output interface S2 and is connected, the other end of sine coil equivalent inductance (R2) is connected with one end of sine coil equivalent inductance (L2), the revolving of the other end of sine coil equivalent inductance (L2) and motor driver (3) becomes equivalent output interface S5 and is connected.
4. a kind of motor driver load equivalent analogue means based on rotary transformer according to claim 3, it is characterized in that: described cosine equivalent electrical circuit (103) is composed in series by cosine coil equivalent resistance (R3) and cosine coil equivalent inductance (L3), the revolving of one end of cosine coil equivalent resistance (R3) and motor driver (3) becomes equivalent output interface S3 and is connected, the other end of cosine coil equivalent resistance (R3) is connected with one end of cosine coil equivalent inductance (L3), the revolving of the other end of cosine coil equivalent inductance (L3) and motor driver (3) becomes equivalent output interface S6 and is connected.
5. a kind of motor driver load equivalent analogue means based on rotary transformer according to claim 4, it is characterized in that: described U phase load equivalent electrical circuit (201) is made up of U phase load equivalent resistance (R4), U phase load equivalent inductance (L4), one end of U phase load equivalent resistance (R4) is connected with the U phase motor power output interface of motor driver (3), and the other end of U phase load equivalent resistance R4 is connected with one end of U phase load equivalent inductance L4.
6. a kind of motor driver load equivalent analogue means based on rotary transformer according to claim 5, is characterized in that: described V phase load equivalent electrical circuit (202) is made up of V phase two load equivalent resistance (R5), V phase load equivalent inductance (L5); One end of V phase load equivalent resistance (R5) is connected with the V phase motor power output interface of motor driver (3), and the other end of V phase load equivalent resistance (R5) is connected with one end of V phase load equivalent inductance (L5).
7. a kind of motor driver load equivalent analogue means based on rotary transformer according to claim 6, is characterized in that: described W threephase load equivalent electrical circuit (203) is made up of W phase load equivalent resistance (R6), W phase load equivalent inductance (L6); One end of W phase load equivalent resistance (R6) is connected with the W phase motor power output interface of motor driver (3), and the other end of W phase load equivalent resistance (R6) is connected with one end of W phase load equivalent inductance (L6); Be connected to each other between the other end of the other end of described U phase load equivalent inductance (L4), the other end of V phase load equivalent inductance (L5), W phase load equivalent inductance (L6).
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| CN201420484884.8U CN204086484U (en) | 2014-08-26 | 2014-08-26 | A kind of motor driver load equivalent analogue means based on rotary transformer |
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| CN201420484884.8U CN204086484U (en) | 2014-08-26 | 2014-08-26 | A kind of motor driver load equivalent analogue means based on rotary transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093775A (en) * | 2016-05-27 | 2016-11-09 | 深圳市若腾科技有限公司 | Brushless motor driver testing circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093775A (en) * | 2016-05-27 | 2016-11-09 | 深圳市若腾科技有限公司 | Brushless motor driver testing circuit |
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