CN205212742U - PMSM controller based on vector control - Google Patents

Abstract

The utility model relates to a PMSM controller based on vector control, combine intelligent power drive module, it founds controller hardware architecture to introduce strong and weak electric isolation technique, the full -digital of product has been realized, intelligent and miniaturized characteristics, and the PMSM controller that the designs temperature detection that has integrateed, voltage detecting, current detection, the open -phase protection, overload protection and power fault detection structure, fail safe nature and work efficiency among the practical application have effectively been improved, has the high advantage of control accuracy.

Description

A kind of Permanent Magnet Synchronous Motor Controller based on vector control

Technical field

The utility model relates to a kind of Permanent Magnet Synchronous Motor Controller based on vector control, belongs to design of electrical motor control technology field.

Background technology

Power driven system in recent years based on permagnetic synchronous motor starts to be widely used in industrial drives control field fast, accurately, and power is increasing, and it is excellent to require that it has dynamic characteristic, moment of inertia and time constant less, reliable, the feature such as easy to maintenance.But existing Permanent Magnet Synchronous Motor Controller, cannot realize These characteristics, therefore, existing market needs a Permanent Magnet Synchronous Motor Controller that can meet above-mentioned technical characterstic, in order to improve the operating efficiency in practical application.

Utility model content

For above-mentioned technical problem, technical problem to be solved in the utility model is to provide a kind of employing total digitalization design, have that volume is little, quality is light, control precision high advantage, effectively can improve the Permanent Magnet Synchronous Motor Controller based on vector control of security reliability and operating efficiency in practical application.

The utility model is in order to solve the problems of the technologies described above by the following technical solutions: the utility model devises a kind of Permanent Magnet Synchronous Motor Controller based on vector control, for having the double-closed-loop control device of speed ring and electric current loop; Comprise analog rate setting device, AC three-phase input, resolver, intelligent power driver module, control module, and the simulated modulation circuit that is connected with control module respectively, three-phase current adopt modulate circuit, level switch module, have the decoding device of excitation function; Wherein, analog rate setting device is connected with control module through simulated modulation circuit; AC three-phase input adopts modulate circuit to be connected with control module through three-phase current; Resolver is connected with control module through the decoding device with excitation function; Intelligent power driver module is connected with control module through level switch module, and by two one way data communication links between intelligent power driver module and level switch module, wherein, article one, one way data communication chain route level switch module points to intelligent power driver module, and another one way data communication chain route intelligent power driver module points to level switch module.

As a kind of optimal technical scheme of the present utility model: also comprise the RS422 communication interface be connected with described control module.

As a kind of optimal technical scheme of the present utility model: also comprise light-coupled isolation module, described RS422 communication interface is connected with described control module through light-coupled isolation module.

As a kind of optimal technical scheme of the present utility model: also comprise malfunction indicator lamp device and light source driving circuit, malfunction indicator lamp device is connected with described control module through light source driving circuit.

As a kind of optimal technical scheme of the present utility model: also comprise temperature sensing circuit and temperature sampling discharge circuit, temperature sensing circuit is connected with described control module through temperature sampling discharge circuit; Described malfunction indicator lamp device comprises overheating fault indicator light and overtemperature malfunction indicator lamp, and overheating fault indicator light is connected with described control module respectively through described light source driving circuit with overtemperature malfunction indicator lamp.

As a kind of optimal technical scheme of the present utility model: also comprise the first linear light-coupled isolation module, described temperature sensing circuit is connected with described control module through the first linear light-coupled isolation module, temperature sampling discharge circuit successively.

As a kind of optimal technical scheme of the present utility model: also comprise busbar voltage sample circuit and busbar voltage sampling discharge circuit, busbar voltage sample circuit is connected with described control module through busbar voltage sampling discharge circuit; Described malfunction indicator lamp device comprises under-voltage malfunction indicator lamp, overvoltage malfunction indicator lamp, overload fault indicator light and over current fault indicator light, and under-voltage malfunction indicator lamp, overvoltage malfunction indicator lamp, overload fault indicator light are connected with described control module respectively through described light source driving circuit with over current fault indicator light.

As a kind of optimal technical scheme of the present utility model: also comprise the second linear optical coupling isolation module, described busbar voltage sample circuit is connected with described control module through the second linear optical coupling isolation module, busbar voltage sampling discharge circuit successively.

As a kind of optimal technical scheme of the present utility model: two one way data communication links between described intelligent power driver module and level switch module are unidi-rectional data signal and isolate link.

A kind of Permanent Magnet Synchronous Motor Controller based on vector control described in the utility model adopts above technical scheme compared with prior art, there is following technique effect: the designed Permanent Magnet Synchronous Motor Controller controlled based on inverter and space vector pulse width modulation of the utility model, adopt total digitalization design, combined with intelligent power driver module, introduce strong and weak electricity isolation technology and build controller hardware structure, achieve the total digitalization of product, intelligent and miniaturized feature, and designed Permanent Magnet Synchronous Motor Controller is integrated with temperature detection, voltage detecting, current detecting, open-phase protection, overload protection and power failure detection architecture, effectively improve security reliability and operating efficiency in practical application, there is control precision high advantage.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model design based on the Permanent Magnet Synchronous Motor Controller of vector control;

Fig. 2 is the designed vector control structural representation for the control method of the Permanent Magnet Synchronous Motor Controller based on vector control of the utility model.

Embodiment

Be described in further detail for embodiment of the present utility model below in conjunction with Figure of description.

As shown in Figure 1, a kind of Permanent Magnet Synchronous Motor Controller based on vector control of the utility model design, for having the double-closed-loop control device of speed ring and electric current loop, in the middle of actual application, comprise analog rate setting device, AC three-phase inputs, resolver, intelligent power driver module, RS422 communication interface, malfunction indicator lamp device, first linear light-coupled isolation module, temperature sensing circuit, second linear optical coupling isolation module, busbar voltage sample circuit, control module, and the simulated modulation circuit that is connected with control module respectively, three-phase current adopts modulate circuit, level switch module, light-coupled isolation module, light source driving circuit, temperature sampling discharge circuit, busbar voltage sampling discharge circuit, there is the decoding device of excitation function, wherein, analog rate setting device is connected with control module through simulated modulation circuit, RS422 communication interface is connected with described control module through light-coupled isolation module, AC three-phase input adopts modulate circuit to be connected with control module through three-phase current, resolver is connected with control module through the decoding device with excitation function, intelligent power driver module is connected with control module through level switch module, and by two one way data communication links between intelligent power driver module and level switch module, wherein, article one, one way data communication chain route level switch module points to intelligent power driver module, for carrying pwm control signal, another one way data communication chain route intelligent power driver module points to level switch module, for carrying IPM guard signal, and these two one way data communication links are unidi-rectional data signal isolation link, malfunction indicator lamp device is connected with described control module through light source driving circuit, temperature sensing circuit is connected with described control module through the first linear light-coupled isolation module, temperature sampling discharge circuit successively, correspond, malfunction indicator lamp device comprises overheating fault indicator light and overtemperature malfunction indicator lamp, and overheating fault indicator light is connected with described control module respectively through described light source driving circuit with overtemperature malfunction indicator lamp, busbar voltage sample circuit is connected with described control module through the second linear optical coupling isolation module, busbar voltage sampling discharge circuit successively, correspond, malfunction indicator lamp device comprises under-voltage malfunction indicator lamp, overvoltage malfunction indicator lamp, overload fault indicator light and over current fault indicator light, and under-voltage malfunction indicator lamp, overvoltage malfunction indicator lamp, overload fault indicator light are connected with described control module respectively through described light source driving circuit with over current fault indicator light.In the middle of actual application, control module adopt TI company low-power consumption of new generation, at a high speed, high-precision digital signal processor (DSP)---TMS320F2812 chip, this chip be the control of industrial quarters first batch of 32 special, include flash memory and the digital signal processor up to 150MIPS, be specially application such as industrial automation, optic network and Electric Machine Control and designing, chip core is the DSP kernel that current digital control application aspect performance is the highest; Because resolver is a kind of precise hard_drawn tuhes electrical micro-machine, there is reliable feature, therefore adopt resolver as motor rotor position sensor here, and for having the decoding device of excitation function, the RD conversion chip AD2S1200 adopting AD company special is as decoding device, AD2S1200 decoding device is built-in revolve change excitation export, only need through amplifying, the sine and cosine of revolving change can export and be converted to configurable 10 ~ 16 bit data by it, and conversion accuracy is up to 11 points; Intelligent power driver module has selected the 5th generation Intelligent Power Module (IPM) of Mitsubishi, and IGBT and peripheral driver and protective circuit are integrated in a module by it, reduce small product size, shorten product development cycle.The 6 road motor PWM control signals that TMS320F2812 chip generates are after the unidi-rectional data signal isolation link being pointed to intelligent power driver module by level switch module carries out light-coupled isolation, deliver to intelligent power driver module (IPM) to drive, achieve the strong and weak electricity isolation in controller; The external setting-up input of controller can be provided by RS422 communication interface or simulation setting; Controller is integrated with temperature detection simultaneously, voltage detecting, current detecting, open-phase protection, overload protection and power failure detection architecture, can carry out corresponding warning by each corresponding malfunction indicator lamp in designed malfunction indicator lamp device.

The utility model is designed is numerical model analysis based on the circuit in the Permanent Magnet Synchronous Motor Controller of vector control, strong and weak electricity hybrid circuit, for avoiding power electrical interference control circuit, wherein, busbar voltage sample circuit and main control circuit are isolated by the second linear optical coupling isolation module, temperature sensing circuit and main control circuit are isolated by the first linear light-coupled isolation module, pwm control signal and IPM guard signal adopt unidi-rectional data signal to isolate link to carry out light-coupled isolation respectively, RS422 communication interface and main control circuit adopt light-coupled isolation module to carry out light-coupled isolation, outside is only designed Permanent Magnet Synchronous Motor Controller provides 28V to control power supply and+270V power power-supply, other power supply all need be obtained by internal DC/DC module converts.

The designed Permanent Magnet Synchronous Motor Controller based on vector control of the utility model is on actual processing technology, also do following design consideration, the design of the first in electromagnetic compatibility, EMC Design refers to that equipment can work normally in certain electromagnetic environment, and not to the ability of the electromagnetic interference that anything formation in this environment can not be born, the object of design is exactly make the electronic equipment of design or system realize electromagnetic compatibility in the electromagnetic environment of expection.Therefore, processing technology mainly does following consideration: be first PCB routing, first determines components and parts position onboard, then arranges ground wire, power line, then arrange HW High Way, finally considers low speed signal line.Should divide into groups, in order to avoid mutually disturb by supply voltage, digital-to-analog circuit, speed speed, size of current etc. in the position of components and parts.All electric connectors are arranged in the side of printed board simultaneously, avoid from both sides outgoing cable as far as possible, reduce common mode radiation.Then be shielding design, shielding is used for suppressing electromagnetic interference along the propagation in space, is namely the route of transmission cutting off radiated interference.Whole controller casing adopts hermetically sealed design, isolates between power drive and control board with barricade.All outer signal lines all adopt frequency cables, and by screen reliable ground.Be finally reduce electromagnetic radiation, in general integrated system, motor and driving all exist as radiation source.Suitable switching frequency and PWM waveform can effectively reduce the radio-frequency component of electromagnetic radiation.Increase suitable absorbing circuit in driving circuit section in addition and can effectively reduce electromagnetic radiation energy.The power circuit cabling of controller inside can affect the radiation magnitude of controller greatly in addition, this is because the radio-frequency component in PWM copped wave can be larger due to the stray inductance produce power on wire high frequency radiation, so wire stray inductance should be reduced during wires design as far as possible, suggestion large-area planar wire conduction current.Structural design is avoided power circuit form loop in controller inside as far as possible, and the straight circuit structure directly gone out should be kept.

It two is thermal designs, and thermal design is most important to the reliability improving product, and good heat radiation is directly connected to running status and the life-span of product.Therefore, in the design process, mainly carry out thermal design consideration in the following aspects: the cooling being first power device, power device in Electric Machine Control needs the drive current flowing through motor, its switching loss and tube voltage drop loss can produce larger heat at power device itself, and general loss is all in about 5% of gross power.In design, we select liquid cooling to carry out cold drawing heat radiation to power device, effectively reduce the volume requirement of controller, and have good cooling effect, and under keeping nominal load, cold drawing temperature rise is no more than 20 degree.Next is electrochemical capacitor heat radiation, in Electric Machine Control, alminium electrolytic condenser is used for the high order harmonic component produced during filtering controls, this harmonic wave has the advantages that frequency is high, energy is large, electric capacity can be made to have certain temperature rise, and the working temperature of electric capacity is directly connected to the life and reliability of electric capacity.The Boards wall customized by electrochemical capacitor in this design on control casing, and is fixed with body contact position heat conductive silica gel bottom electrochemical capacitor, and one increases controller anti-vibration ability, and two reduce thermal resistance.High fdrequency component in addition on effective filtering electrochemical capacitor can reduce the loss of electric capacity largely, also selects with the noninductive CBB Capacitance parallel connection of high frequency in design on electrochemical capacitor terminals and on IPM terminals.Finally control board electronic devices and components layouts, device in printed board is as far as possible by its caloric value size and degree of heat radiation partition arrangement, caloric value device that is large or poor heat resistance dispels the heat good position, controller housing will be made full use of in the horizontal direction dispel the heat, and increase radiating ribs on controller housing.

It three is environmental suitability designs, and environmental suitability comprises high/low temperature design, anti-vibration ability, water proof and dust proof, anti-rain, smog etc., and components and parts selection has taken into full account the high/low temperature adaptive capacity of product; In anti-vibration, first consider on product structure, secondly consider at fit on; And carry out other protective treatment again in production; Special it is emphasized that due to controller applied environment vibration level comparatively large, controller architecture adopts tower structure, and namely adopt the aluminium sash of integrated molding as the support component of controller entirety, other device and parts are installed on framework.Frame installation adopt antivibration rubber cushion in the anti-dither ability strengthening product.

To sum up; the designed Permanent Magnet Synchronous Motor Controller based on vector control of the utility model; adopt total digitalization design; combined with intelligent power driver module; introduce strong and weak electricity isolation technology and build controller hardware structure; achieve the total digitalization of product, intellectuality and miniaturized feature; and designed Permanent Magnet Synchronous Motor Controller is integrated with temperature detection, voltage detecting, current detecting, open-phase protection, overload protection and power failure detection architecture; effectively improve security reliability and operating efficiency in practical application, there is control precision high advantage.

Rotor flux-orientation vector control is that permagnetic synchronous motor uses a kind of control mode comparatively widely, its general principle passes through coordinate transform, fasten at rotor field-oriented synchronous coordinate axle and uneoupled control is carried out to the field supply of motor and torque current, make it have the runnability identical with Traditional DC motor.Namely fasten at rotor field-oriented synchronous coordinate axle, stator current vector is decomposed into field supply and torque current, it is separately controlled.

To permagnetic synchronous motor, ignoring core sataration, disregard magnetic hysteresis loss, rotor do not have damping winding, the conductivity of permanent magnetic material be zero and phase winding in induced electromotive force waveform be under sinusoidal condition, if do not consider the saliency of rotor field, namely the self-induction of rotating coordinate system d-axis is equal with the self-induction of rotating coordinate system quadrature axis, getting permanent magnet first-harmonic excitation field axis is d axle (d-axis), and q axle (quadrature axis) is along the advanced d axle of direction of rotation 90 ° of electrical degrees, rotating coordinate system is formed by d axle (d-axis) and q axle, rotating coordinate system rotates with angular rate (electric angle frequency) in company with rotor, its space coordinates is determined with the electrical degree θ between d axle and reference axis as axle (as axle is A phase winding axis).In rotating coordinate system after coordinate transform, the basic current equation of permanent magnet synchronous motor can be expressed as:

$\left[\begin{array}{c}{I}_d\\ I_q\end{array}\right]=\sqrt{\frac{2}{3}}\left[\begin{array}{c}{\mathrm{cos\θ}}_r\cos ({\mathrm{\θ}}_r-\frac{2\mathrm{\π}}{3})\cos ({\mathrm{\θ}}_r+\frac{2\mathrm{\π}}{3})\\ -{\mathrm{sin\θ}}_r-\sin ({\mathrm{\θ}}_r-\frac{2\mathrm{\π}}{3})-\sin ({\mathrm{\θ}}_r+\frac{2\mathrm{\π}}{3})\end{array}\right]\left[\begin{array}{c}{I}_A\\ I_B\\ I_C\end{array}\right]$

Three-phase voltage by the two-phase voltage transitions under rotating coordinate system is in stator A, B, C phase:

$\left[\begin{array}{c}{U}_A\\ U_B\\ U_C\end{array}\right]=\sqrt{\frac{2}{3}}\left[\begin{array}{ccc}{\mathrm{cos\θ}}_r& {\mathrm{sin\θ}}_r& \sqrt{\frac{1}{2}}\\ \cos ({\mathrm{\θ}}_r-\frac{2\mathrm{\π}}{3})& \sin ({\mathrm{\θ}}_r-\frac{2\mathrm{\π}}{3})& \sqrt{\frac{1}{2}}\\ \cos ({\mathrm{\θ}}_r+\frac{2\mathrm{\π}}{3})& \sin ({\mathrm{\θ}}_r+\frac{2\mathrm{\π}}{3})& \sqrt{\frac{1}{2}}\end{array}\right]\left[\begin{array}{c}{U}_d\\ U_q\\ 0\end{array}\right]$

Motor steady state voltage equation can be expressed as:

The electromagnetic torque of permanent magnet synchronous motor can be expressed as:

T _em＝-p _n|ψ _fI _q+(L _d-L _q)I _dI _q|

By L _d=L _q=L, can be reduced to: in formula, U _dand U _qbe respectively rotating coordinate system direct-axis voltage value, rotating coordinate system quadrature-axis voltage value, I _dand I _qbe respectively rotating coordinate system direct-axis current value, rotating coordinate system quadrature axis current value; I _a, I _b, I _cfor the current three-phase electricity flow valuve of permagnetic synchronous motor; p _nfor the number of pole-pairs of permagnetic synchronous motor; for the magnetic linkage of stator winding crossed by permanent magnet first-harmonic excitation field chain; Em is no-load electromotive force.

From above formula, after coordinate transform, the Formula of Electromagnetic of permagnetic synchronous motor obtains the expression formula the same with DC motor torque, so by detecting customization winding current and rotor position angle, according to park transforms principle, current rotating coordinate system direct-axis current value and current rotating coordinate system quadrature axis current value can be calculated, and make current actual value and set point substantially equal by PI calculating adjustment, the vector control of permagnetic synchronous motor can be realized.

As shown in Figure 2, based on above-mentioned design, the utility model designs the control method for the Permanent Magnet Synchronous Motor Controller based on vector control further, comprises the steps:

Step 001. obtains current motor rotating speed and current rotor position angle by resolver through AD2S1200 decoding device, and enters step 002;

Step 002., according to setting motor speed and current motor rotating speed, carries out speed ring PI calculating, obtains rotating coordinate system quadrature axis setting current value I _{q establishes}, and enter step 003;

Step 003. obtains the current three-phase electricity flow valuve I of permagnetic synchronous motor _a, I _b, I _c, and according to current rotor position angle, by the current three-phase electricity flow valuve I of permagnetic synchronous motor _a, I _b, I _cbe converted to current rotating coordinate system direct-axis current value I _{d works as}with current rotating coordinate system quadrature axis current value I _{q works as}, and enter step 004;

Step 004. obtains current rotating coordinate system direct-axis current value I respectively _{d works as}with default rotating coordinate system direct-axis current value I _{d establishes}between error amount, and current rotating coordinate system quadrature axis current value I _{q works as}current value I is set with rotating coordinate system quadrature axis _{q establishes}between error amount, and by these two error amount input current rings, carry out electric current loop PI calculating, obtain rotating coordinate system direct-axis voltage value U _dwith rotating coordinate system quadrature-axis voltage value U _q, and enter step 005;

Step 005. is by rotating coordinate system direct-axis voltage value U _dwith rotating coordinate system quadrature-axis voltage value U _q, be converted to the quadrature voltage value U under rest frame _αand U _β, and for this quadrature voltage value U _αand U _β, carry out inverse transformation and obtain permagnetic synchronous motor three-phase setting voltage value, then enter step 006;

Step 006., according to permagnetic synchronous motor three-phase setting voltage value, obtains permagnetic synchronous motor setting voltage vector by PWM duty ratio method, is delivered to permagnetic synchronous motor and controls, and realizes breakdown torque export for permagnetic synchronous motor.

The designed control method for the Permanent Magnet Synchronous Motor Controller based on vector control of the utility model, in the design process, one step event system of base timing when whole control procedure is more than, except serial ports being scanned and judge the main program of order, the multiple program modules comprising control program are all called in timer interruption mode, and consider the generation of PWM, current acquisition and position probing are all with implement of interruption function, in order to avoid multiple event at synchronization to control module TMS320F2812 as far as possible, send interrupt requests and cause race hazard, therefore multiple proportion is not had between design con-trol cycle and PWM carrier cycle.Concrete employing 100us, as control cycle, adopts 11.5KHz as the carrier frequency of PWM, adopts the cycle that 87us gathers as electric current and rotor-position, and the calculating of motor speed is then that every 10 control cycle 1ms calculate once.

To sum up, the designed control method for the Permanent Magnet Synchronous Motor Controller based on vector control of the utility model, based on the Permanent Magnet Synchronous Motor Controller designed by the utility model, adopt totally digitilized treatment technology, introduce advanced space vector Uncoupling Control Based, and in conjunction with modified model PI control strategy, real-time magnetic field oriented control is carried out for permagnetic synchronous motor, remain breakdown torque output, and be integrated with temperature detection, voltage detecting, current detecting, open-phase protection, overload protection and power failure measuring ability, effectively improve permagnetic synchronous motor security reliability and operating efficiency in actual applications, there is the advantage that control precision is high.

Be explained in detail for execution mode of the present utility model in conjunction with Figure of description above, but the utility model is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.

Claims (9)

1. based on a Permanent Magnet Synchronous Motor Controller for vector control, for having the double-closed-loop control device of speed ring and electric current loop; It is characterized in that: comprise analog rate setting device, AC three-phase input, resolver, intelligent power driver module, control module, and the simulated modulation circuit that is connected with control module respectively, three-phase current adopt modulate circuit, level switch module, have the decoding device of excitation function; Wherein, analog rate setting device is connected with control module through simulated modulation circuit; AC three-phase input adopts modulate circuit to be connected with control module through three-phase current; Resolver is connected with control module through the decoding device with excitation function; Intelligent power driver module is connected with control module through level switch module, and by two one way data communication links between intelligent power driver module and level switch module, wherein, article one, one way data communication chain route level switch module points to intelligent power driver module, and another one way data communication chain route intelligent power driver module points to level switch module.

2. a kind of Permanent Magnet Synchronous Motor Controller based on vector control according to claim 1, is characterized in that: also comprise the RS422 communication interface be connected with described control module.

3. a kind of Permanent Magnet Synchronous Motor Controller based on vector control according to claim 2, it is characterized in that: also comprise light-coupled isolation module, described RS422 communication interface is connected with described control module through light-coupled isolation module.

4. a kind of Permanent Magnet Synchronous Motor Controller based on vector control according to claim 1, it is characterized in that: also comprise malfunction indicator lamp device and light source driving circuit, malfunction indicator lamp device is connected with described control module through light source driving circuit.

5. a kind of Permanent Magnet Synchronous Motor Controller based on vector control according to claim 4, is characterized in that: also comprise temperature sensing circuit and temperature sampling discharge circuit, temperature sensing circuit is connected with described control module through temperature sampling discharge circuit; Described malfunction indicator lamp device comprises overheating fault indicator light and overtemperature malfunction indicator lamp, and overheating fault indicator light is connected with described control module respectively through described light source driving circuit with overtemperature malfunction indicator lamp.

6. a kind of Permanent Magnet Synchronous Motor Controller based on vector control according to claim 5, it is characterized in that: also comprise the first linear light-coupled isolation module, described temperature sensing circuit is connected with described control module through the first linear light-coupled isolation module, temperature sampling discharge circuit successively.

7. according to a kind of Permanent Magnet Synchronous Motor Controller based on vector control described in any one in claim 4 to 6, it is characterized in that: also comprise busbar voltage sample circuit and busbar voltage sampling discharge circuit, busbar voltage sample circuit is connected with described control module through busbar voltage sampling discharge circuit; Described malfunction indicator lamp device comprises under-voltage malfunction indicator lamp, overvoltage malfunction indicator lamp, overload fault indicator light and over current fault indicator light, and under-voltage malfunction indicator lamp, overvoltage malfunction indicator lamp, overload fault indicator light are connected with described control module respectively through described light source driving circuit with over current fault indicator light.

8. a kind of Permanent Magnet Synchronous Motor Controller based on vector control according to claim 7, it is characterized in that: also comprise the second linear optical coupling isolation module, described busbar voltage sample circuit is connected with described control module through the second linear optical coupling isolation module, busbar voltage sampling discharge circuit successively.

9. a kind of Permanent Magnet Synchronous Motor Controller based on vector control according to claim 1, is characterized in that: two one way data communication links between described intelligent power driver module and level switch module are unidi-rectional data signal and isolate link.