CN203933484U - The sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free - Google Patents
The sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free Download PDFInfo
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- CN203933484U CN203933484U CN201420239443.1U CN201420239443U CN203933484U CN 203933484 U CN203933484 U CN 203933484U CN 201420239443 U CN201420239443 U CN 201420239443U CN 203933484 U CN203933484 U CN 203933484U
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Abstract
The utility model discloses the sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free, comprise permagnetic synchronous motor, described permagnetic synchronous motor is connected with igbt by circuit, and described igbt is connected with filtering integrator by circuit; Described permagnetic synchronous motor is also connected with CPU by current detection circuit, and described CPU is connected with driver, status indicator lamp, temperature sensor, debug circuit by circuit respectively; Described driver is connected with igbt by circuit; Described igbt is connected with voltage detecting circuit with the circuit between filtering integrator, and described voltage detecting circuit is also connected with CPU with power supply respectively; Described power supply is connected with CPU by circuit; Described CPU is connected with control panel by circuit.The utility model improved machine system Performance And Reliability, reduced production cost, saved motor position sensor, improved reliability and range of application.
Description
Technical field
The utility model relates to the sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free.
Background technology
The permagnetic synchronous motor plurality of advantages such as efficiency is high, volume is little because having, lightweight, noise is low and speed governing is convenient, had at home and abroad obtained developing rapidly and application more and more widely in recent years.This motor is all replacing induction machine in many applications such as industrial or agricultural, national defence, household electrical appliance and motor vehicle and instruments, is having brushless motor or fuel power machinery, demonstrates vigorous development trend.China's rare earth material is very abundant, and design, the manufacturing technology of tens kilowatts of following permagnetic synchronous motors are very ripe.
Permagnetic synchronous motor must have suitable driver control to work.For many years, we have carried out continuous research and development to the Drive Control Technique of permagnetic synchronous motor, have obtained multinomial achievement, have filled up multinomial domestic blank, control technology is the status in holding a safe lead at home, is included Xi Fei group and adopts in interior Duo Jia unit.Wherein some commercialization, for some motors or complete machine manufacturer supporting.Unique control algolithm, circuit structure, the good reliable control performance of high performance-price ratio and can be the striking features that user's specialized designs is this Drive Control Technique.
In actual use, permagnetic synchronous motor and driving governor are indivisible global facility.The producer that can produce this motor is a lot, and choice of electrical machine is relatively convenient, and supporting suitable driving governor seems very crucial.Particularly at the sine wave of the position-sensor-free of electric automobiles, control, yet there are no at home ripe technology and product, belong to blank field.
Utility model content
The purpose of this utility model is to provide a kind of permagnetic synchronous motor position-sensor-free sinusoidal wave Frequency Drive Control device, the utility model improved machine system Performance And Reliability, simplify the structure, reduced production cost, when having saved motor position sensor, reach good Electric Machine Control effect; Save motor position sensor, improved reliability and the range of application of permagnetic synchronous motor.
In order to achieve the above object, the technical solution of the utility model is:
The sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free, comprise permagnetic synchronous motor, described permagnetic synchronous motor is connected with igbt by circuit, and described igbt is connected with filtering integrator by circuit; Described permagnetic synchronous motor is also connected with CPU by current detection circuit, and described CPU is connected with driver, status indicator lamp, temperature sensor, debug circuit by circuit respectively; Described driver is connected with igbt by circuit; Described igbt is connected with voltage detecting circuit with the circuit between filtering integrator, and described voltage detecting circuit is also connected with CPU with power supply respectively; Described power supply is connected with CPU by circuit; Described CPU is connected with control panel by circuit.
The beneficial effects of the utility model are: the utility model is mainly for its speed-regulating range width of motor vehicle, torque ripple is large, impact deceleration and/or impact turn reducing square are frequent, descending has the situations such as energy feedback (generating), research the perfect sinusoidal wave control technology of position sensor, develop for electric motor car and realize the controller that the sinusoidal wave Frequency Drive Control of permagnetic synchronous motor position-sensor-free is used, the sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free of the present utility model has improved the Performance And Reliability of machine system, simplify the structure, reduced production cost, the total output torque that realizes motor keeps maximizing constantly, produce the required electric current of identical torque minimum, thereby reduce copper loss and eddy current loss that stator current brings, improve the efficiency of machine system, the control ability of enhancing to motor, expands dynamic response interval, in the situation that rotating speed is certain, can export larger torque and rotational speed, the rotor-position and the motor speed that obtain permagnetic synchronous motor, when having saved motor position sensor, reach good Electric Machine Control effect, save motor position sensor, improved reliability and the range of application of permagnetic synchronous motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, enforcement of the present utility model being made to a nearly step describes in detail.
Embodiment 1
As described in Figure 1, the sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free of the present embodiment, comprise permagnetic synchronous motor 1, by permagnetic synchronous motor 1, carry out breakdown torque/current ratio control technology (MTPA), the torque of permagnetic synchronous motor, by electromagnetic torque and reluctance torque two parts, formed, the torque component of electromagnetic torque and electric current is linear, the torque component of reluctance torque and electric current, excitation component and motor saliency determine jointly, by introducing MTPA algorithm, make unitary current output breakdown torque, under same even load, reduce current amplitude, improve the utilance of electric current, thereby reduce copper loss and eddy current loss that stator current brings, lifting motor efficiency.During specific implementation, can obtain following current relationship:
Thereby when speed regulator output
the given electric current of axle
time, can obtain according to above formula
the given electric current of axle
, realize MTPA and control.
Described permagnetic synchronous motor 1 is connected with igbt 2 by circuit, and described igbt 2 is connected with filtering integrator 3 by circuit; Under position-sensor-free operational mode, for assurance vector control, can normally carry out, need to estimate flux linkage position of the rotor by the detection of stator voltage and electric current.The rotor of permagnetic synchronous motor is permanent magnet, produces constant magnetic field.In the process of rotating at rotor, rotor field can be rotated with rotor, so rotor-position is included in rotor flux.If calculate rotor flux, first need to ask for the magnetic linkage that stator winding produces, wherein back-emf being carried out to integration is simple and the most the most frequently used a kind of mode.In order to solve the accumulation of error that in digital system, pure integration brings, the present embodiment adopts high pass-low-pass filtering integrator 3 of original creation, and 3 pairs of DC component of this filtering integrator have good inhibition.Described permagnetic synchronous motor 1 is also connected with CPU4 by current detection circuit, the instruction of the present embodiment, algorithms etc. are all to input to CPU4 by programming port 11, by CPU4, controlled, described CPU4 is connected with driver 5, status indicator lamp 6, temperature sensor 7, debug circuit 8 by circuit respectively; Described driver 5 is connected with igbt 2 by circuit; Described igbt 2 is connected with voltage detecting circuit with the circuit between filtering integrator 3, utilize low-speed pulse compensated torque technology, due to causes such as mechanical erections, may there is cyclic fluctuation in the load torque of permagnetic synchronous motor, and then cause the fluctuation of speed, produce low-frequency noise and vibration.The present embodiment is taked load-current feedforward compensation, the load torque that observation is obtained is introduced current detecting and adjusting, when load torque increases (reducing), the equidirectional variation of the given signal of torque current, the electromagnetic torque of output also increases (reducing) thereupon, guarantees electromagnetic torque and load torque balance all the time.Described voltage detecting circuit is also connected with CPU4 with power supply 9 respectively; Described power supply 9 is connected with CPU4 by circuit; Described CPU4 is connected with control panel 10 by circuit.
The present embodiment is mainly for its speed-regulating range width of motor vehicle, torque ripple is large, impact deceleration and/or impact turn reducing square are frequent, descending has the situations such as energy feedback (generating), research the perfect sinusoidal wave control technology of position sensor, develop for electric motor car and realize the controller that the sinusoidal wave Frequency Drive Control of permagnetic synchronous motor position-sensor-free is used, the sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free of the present embodiment has improved the Performance And Reliability of machine system, simplify the structure, reduced production cost, the total output torque that realizes motor keeps maximizing constantly, produce the required electric current of identical torque minimum, thereby reduce copper loss and eddy current loss that stator current brings, improve the efficiency of machine system, the control ability of enhancing to motor, expands dynamic response interval, in the situation that rotating speed is certain, can export larger torque and rotational speed, the rotor-position and the motor speed that obtain permagnetic synchronous motor, when having saved motor position sensor, reach good Electric Machine Control effect, save motor position sensor, improved reliability and the range of application of permagnetic synchronous motor.
Above-described embodiment is used for the utility model of explaining, rather than this aspect is limited, and in the protection range of spirit of the present utility model and claim, any modification and change that this aspect is made, all fall into protection range of the present utility model.
Claims (1)
1. the sinusoidal wave Frequency Drive Control device of a permagnetic synchronous motor position-sensor-free, it is characterized in that: comprise permagnetic synchronous motor (1), described permagnetic synchronous motor (1) is connected with igbt (2) by circuit, and described igbt (2) is connected with filtering integrator (3) by circuit; Described permagnetic synchronous motor (1) is also by current detection circuit and CPU(4) be connected, described CPU(4) by circuit, be connected with driver (5), status indicator lamp (6), temperature sensor (7), debug circuit (8) respectively; Described driver (5) is connected with igbt (2) by circuit; Described igbt (2) is connected with voltage detecting circuit with the circuit between filtering integrator (3), described voltage detecting circuit also respectively with power supply (9) and CPU(4) be connected; Described power supply (9) is by circuit and CPU(4) be connected; Described CPU(4) by circuit, be connected with control panel (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420239443.1U CN203933484U (en) | 2014-05-12 | 2014-05-12 | The sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free |
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| CN201420239443.1U CN203933484U (en) | 2014-05-12 | 2014-05-12 | The sinusoidal wave Frequency Drive Control device of a kind of permagnetic synchronous motor position-sensor-free |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997271A (en) * | 2014-05-12 | 2014-08-20 | 迈为电机驱动科技（绍兴）有限公司 | Permanent magnet synchronous motor non-position-sensor sine wave frequency conversion driving controller |
-
2014
- 2014-05-12 CN CN201420239443.1U patent/CN203933484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997271A (en) * | 2014-05-12 | 2014-08-20 | 迈为电机驱动科技（绍兴）有限公司 | Permanent magnet synchronous motor non-position-sensor sine wave frequency conversion driving controller |
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