CN207801792U - A kind of permanent magnet synchronous motor control device - Google Patents
A kind of permanent magnet synchronous motor control device Download PDFInfo
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- CN207801792U CN207801792U CN201820142044.1U CN201820142044U CN207801792U CN 207801792 U CN207801792 U CN 207801792U CN 201820142044 U CN201820142044 U CN 201820142044U CN 207801792 U CN207801792 U CN 207801792U
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Abstract
The utility model belongs to motor control technology field more particularly to a kind of permanent magnet synchronous motor control device.This kind of control device can realize the high-precision to permanent magnet synchronous motor, high dynamic performance, a wide range of speed governing or location control; it is provided with overvoltage, overcurrent, under-voltage protection; and remote monitoring can be completed by the transmission of wireless communication unit realization and the data among systems with monitoring function.A kind of permanent magnet synchronous motor control device, including：Control unit；Power drive unit, feedback detection unit, the protection location communicated to connect respectively with control unit；And the commutation inversion unit being connected with power drive unit；The feedback detection unit is made of Rotating speed measring circuit, temperature sensing circuit, fault feedback circuit；The protection location is made of single-phase overcurrent protection circuit, busbar current foldback circuit, bus overvoltage and/or under-voltage protecting circuit.
Description
Technical field
The utility model belongs to motor control technology field more particularly to a kind of permanent magnet synchronous motor control device.
Background technology
Permanent magnet synchronous motor is the synchronous motor that synchronous rotary magnetic field is generated by permanent magnet excitation, since it is with structure letter
It is single, small, light-weight, loss it is small, efficient the features such as, be widely used in industrial and agricultural production, communications and transportation, national defence,
The fields such as business.However inventor has found in use, existing permanent magnet synchronous motor can not complete self-test when in use, and
Do not have data scene to show and the functions such as remote monitoring, the safety used is reduced, to operating with for technical staff
Bring inconvenience.
Utility model content
The utility model provides a kind of permanent magnet synchronous motor control device, this kind of control device can be realized to permanent-magnet synchronous
High-precision, high dynamic performance, a wide range of speed governing or the location control of motor, are provided with overvoltage, overcurrent, under-voltage protection, Yi Jineng
The transmission with the data among systems with monitoring function is enough realized by wireless communication unit, completes remote monitoring.
In order to solve the above technical problems, the utility model uses following technical solution：
A kind of permanent magnet synchronous motor control device, including：
Control unit；
Power drive unit, feedback detection unit, the protection location communicated to connect respectively with control unit；
And the commutation inversion unit being connected with power drive unit；
The feedback detection unit is made of Rotating speed measring circuit, temperature sensing circuit, fault feedback circuit；The protection
Unit is made of single-phase overcurrent protection circuit, busbar current foldback circuit, bus overvoltage and/or under-voltage protecting circuit.
It is further preferred that further including having wireless communication unit and LCD aobvious in the permanent magnet synchronous motor control device
Show unit.
Preferably, the commutation inversion unit is by rectifier bridge and three phase sine pulse width modulated voltage inverter topology shape
At；It is in series with a sample circuit per one-phase circuit in three phase sine pulse width modulated voltage inverter.
Preferably, Rotating speed measring circuit is made of speed probe and modulation circuit；Modulation circuit is used for tach signal
Carry out capacitance-resistance filter and shaping enhanced processing.
The utility model provides a kind of permanent magnet synchronous motor control device, which includes control unit, work(
Rate driving unit, feedback detection unit, protection location, commutation inversion unit, wireless communication unit and LCD display unit etc..
Permanent magnet synchronous motor control device with above structure feature can realize the high-precision to permanent magnet synchronous motor, high dynamic
Performance, a wide range of speed governing or location control are provided with overvoltage, overcurrent, under-voltage protection, and can pass through wireless communication unit reality
Now with the transmission of the data among systems with monitoring function, remote monitoring is completed.
Description of the drawings
Fig. 1 is the structure diagram of permanent magnet synchronous motor control device provided by the utility model；
The circuit diagram of Fig. 2 units in order to control；
Fig. 3 is the circuit diagram of commutation inversion unit；
Fig. 4 is the circuit diagram of Rotating speed measring circuit；
Fig. 5 is the circuit diagram of temperature sensing circuit；
Fig. 6 is the circuit diagram of busbar current foldback circuit；
Fig. 7 is the circuit diagram of bus overvoltage and/or under-voltage protecting circuit.
Specific implementation mode
The utility model provides a kind of permanent magnet synchronous motor control device, this kind of control device can be realized to permanent-magnet synchronous
High-precision, high dynamic performance, a wide range of speed governing or the location control of motor, are provided with overvoltage, overcurrent, under-voltage protection, Yi Jineng
The transmission with the data among systems with monitoring function is enough realized by wireless communication unit, completes remote monitoring.
As shown in Figure 1, the permanent magnet synchronous motor control device includes control unit, power drive unit, feedback detection
Unit, protection location, commutation inversion unit and the wireless communication unit and LCD display unit being preferably provided with.Wherein, power
Driving unit, feedback detection unit, protection location and the wireless communication unit being preferably provided with, LCD display unit respectively with
Control unit communicates to connect；Commutation inversion unit is then connected with power drive unit.
As shown in Fig. 2, selecting the microprocessor based on ARM CORTEX-M3 as control unit, the control unit is continuous
Acquire each input signal（Such as：Three-phase current, temperature signal, three-phase are under-voltage/over-pressed signal, motor speed signal, three-phase overcurrent
Input signals such as signal etc.）, and the control for passing through field orientation（FOC）And coordinate transform, realize vector controlled（VC）, tie simultaneously
Close Sine Wave Pulse Width Modulation（SPWM）Control model output signal（Such as：Three-phase inversion drive signal, temperature protection driving letter
Number, three-phase is under-voltage/overvoltage protection drive signal, overcurrent protection drive signal, LCD drive signals, wireless module drive signal etc.
Output signal etc.）Realize the control to motor.
And as shown in figure 3, commutation inversion unit is preferably by rectifier bridge and three phase sine pulse width modulated voltage inverter
Topology is formed, and wherein alternating current becomes direct current after rectifier bridge, and PWM1H, PWM1L, PWM2H in three-phase inverter,
PWM2L, PWM3H, PWM3L are held in order to control, and R2~R4 is that each phase is arranged in three phase sine pulse width modulated voltage inverter
Sample circuit in circuit；The power drive unit that three-phase converter end is connect with CORTEX-M3 processor communications is connected
It connects.By three phase sine pulse width modulated voltage inverter frequency conversion, cooperation power drive unit completes driving three-phase jointly
The work of permanent magnet synchronous motor.In fact, the whole work process of power drive unit and commutation inversion unit can be equivalent to
The process of AC-DC-AC commutation inversions.
Further specifically, feedback detection unit is by Rotating speed measring circuit, temperature sensing circuit, fault feedback circuit structure
At, for collecting the parameter in permanent magnet synchronous motor operation process, such as：Temperature, rotating speed and other fault messages, and will be upper
State the value of feedback that parameter operates posture as regulation and control permanent magnet synchronous motor.Wherein, Rotating speed measring circuit is as shown in figure 4, the rotating speed
Detection circuit is made of speed probe and modulation circuit；Speed probe obtains rotating speed by the measurement of pulse-width
Value.Modulation circuit is then further modulated tach signal corresponding to tachometer value：It is first after the tach signal enters modulation circuit
First pass through former-section circuit and carry out capacitance-resistance filter, then amplified by triode Q shapings, finally by signal obtained by final process send to
At CORTEX-M3 processors.CORTEX-M3 processors carry out pulsewidth calculating to collected tach signal, obtain the reality of motor
When rotary speed information.Preferably, diode D is clamp diode in Fig. 4, for preventing impact cutting of the negative pulse to modulation circuit
It is bad.And temperature sensing circuit is as shown in figure 5, wherein RT is dedicated temperature sensor；With the output current of the variation RT of temperature
Also change therewith, also changed correspondingly in the voltage of CPAMP in-phase ends.The changing value is sent into after amplifier is handled at CORTEX-M3
Device is managed, temperature value further is calculated by data, the foundation as control signal.
And specifically, protection location by single-phase overcurrent protection circuit, busbar current foldback circuit, bus overvoltage and/or
Under-voltage protecting circuit is constituted, for being protected to each running gear of permanent magnet synchronous motor.Wherein, busbar current foldback circuit is such as
Shown in Fig. 6, which is to be abnormal state（Such as overvoltage, overcurrent, overheat）When, protection
There is not fatal damage in system.Over-current signal is specifically generated by current detection circuit, over-current signal is after amplifier is handled as tactile
Signal triggering rest-set flip-flop, and rest-set flip-flop generates over-current signal and is output to CORTEX-M3 processors, CORTEX-M3 processors
Protection signal is generated after detecting over-current signal, control Converting Unit stops power output, prevents the excessive damage of output current inverse
Become part and motor.After over current fault contact, reseting signal reset rest-set flip-flop generates normal work signal.And busbar mistake
Pressure and/or under-voltage protecting circuit are as shown in fig. 7, particularly may be divided into overvoltage protection part and under-voltage protection portion in two sub-sections.
Overvoltage protection part（With the mutually a sequence of part in the ends high ref）, voltage signal and reference voltage respectively with the reverse side of comparator
It being connected with in-phase end, comparator exports high level signal when normal work, after threshold values of the voltage higher than setting, reverse phase terminal voltage
Higher than in-phase end reference voltage, comparator exports low level signal, and rest-set flip-flop exports high level signal, generates overvoltage protection.
Under-voltage protection part（With the mutually a sequence of part in the ends low ref）, voltage signal and reference voltage signal are same with comparator respectively
Phase end is connected with reverse side, is that comparator exports high level signal in normal work, after threshold values of the voltage less than setting, reverse phase
Terminal voltage is higher than in-phase end voltage, and comparator exports low level signal, and rest-set flip-flop exports high level signal, generates under-voltage guarantor
Shield.UVP signal and overvoltage protection signal are made up of two diodes or door is sent signal at CORTEX-M3
Manage device.Reset signal ensures that rest-set flip-flop works normally herein.
The utility model provides a kind of permanent magnet synchronous motor control device, which includes control unit, work(
Rate driving unit, feedback detection unit, protection location, commutation inversion unit, wireless communication unit and LCD display unit etc..
Permanent magnet synchronous motor control device with above structure feature can realize the high-precision to permanent magnet synchronous motor, high dynamic
Performance, a wide range of speed governing or location control are provided with overvoltage, overcurrent, under-voltage protection, and can pass through wireless communication unit reality
Now with the transmission of the data among systems with monitoring function, remote monitoring is completed.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (4)
1. a kind of permanent magnet synchronous motor control device, which is characterized in that including：
Control unit；
Power drive unit, feedback detection unit, the protection location communicated to connect respectively with control unit；
And the commutation inversion unit being connected with power drive unit；
The feedback detection unit is made of Rotating speed measring circuit, temperature sensing circuit, fault feedback circuit；The protection location
It is made of single-phase overcurrent protection circuit, busbar current foldback circuit, bus overvoltage and/or under-voltage protecting circuit.
2. a kind of permanent magnet synchronous motor control device according to claim 1, which is characterized in that the permanent magnet synchronous motor
Further include having wireless communication unit and LCD display unit in control device.
3. a kind of permanent magnet synchronous motor control device according to claim 1, which is characterized in that the commutation inversion unit
It is formed by rectifier bridge and three phase sine pulse width modulated voltage inverter topology；Three phase sine pulse width modulated voltage inversion
It is in series with a sample circuit per one-phase circuit in device.
4. a kind of permanent magnet synchronous motor control device according to claim 1, which is characterized in that Rotating speed measring circuit is by turning
Fast sensor is constituted with modulation circuit；Modulation circuit be used for speed probe collect gained tach signal carry out capacitance-resistance filter with
And shaping enhanced processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142044.1U CN207801792U (en) | 2018-01-29 | 2018-01-29 | A kind of permanent magnet synchronous motor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142044.1U CN207801792U (en) | 2018-01-29 | 2018-01-29 | A kind of permanent magnet synchronous motor control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207801792U true CN207801792U (en) | 2018-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820142044.1U Active CN207801792U (en) | 2018-01-29 | 2018-01-29 | A kind of permanent magnet synchronous motor control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817628A (en) * | 2020-06-03 | 2020-10-23 | 中国船舶重工集团公司第七0七研究所 | Full-digital permanent magnet synchronous motor control device and method of extremely-low-rotation-speed rotating system |
-
2018
- 2018-01-29 CN CN201820142044.1U patent/CN207801792U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817628A (en) * | 2020-06-03 | 2020-10-23 | 中国船舶重工集团公司第七0七研究所 | Full-digital permanent magnet synchronous motor control device and method of extremely-low-rotation-speed rotating system |
| CN111817628B (en) * | 2020-06-03 | 2024-02-23 | 中国船舶重工集团公司第七0七研究所 | All-digital permanent magnet synchronous motor control device and method for extremely-low-rotation-speed rotating system |
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