CN205647310U

CN205647310U - Brushless DC motor's DSP controlling means

Info

Publication number: CN205647310U
Application number: CN201620455548.XU
Authority: CN
Inventors: 柴俊; 李坤; 过磊
Original assignee: Wuxi Machinery and Electron Higher Professional and Technical School
Current assignee: Wuxi Machinery and Electron Higher Professional and Technical School
Priority date: 2016-05-18
Filing date: 2016-05-18
Publication date: 2016-10-12
Anticipated expiration: 2026-05-18

Abstract

The utility model discloses a brushless DC motor's DSP controlling means. Including obs core control ware module, ann tall and erect APP monitoring module, host computer demonstration and control module, motor real -time status monitoring module, drive circuit module, power converter module and optocoupler isolation module, wherein, an ampere tall and erect APP monitoring module, host computer demonstration, control module and motor real -time status monitoring module are connected respectively to obs core control ware module for real -time data processing and to the real time control of motor. The utility model discloses a real -time detection motor running state parameter to combine the actual parameter of electric machine, for brushless DC motor provides the most reasonable, the most reliable control, and can be through the running state of ann's real -time monitoring of tall and erect APP and control motor.

Description

The DSP of a kind of brshless DC motor controls device

Technical field

This utility model relates to electric and electronic technical field, and the DSP being specifically related to a kind of brshless DC motor controls device.

Background technology

Current existing motor speed regulation system technology has the defects such as reliability is low, volume is big, structure is complicated.

As a kind of novel governing system, brshless DC motor (BLDCM) control system by its good control and Runnability and in productive life, present huge development potentiality.Brshless DC motor uses electronic commutating device instead of The mechanical commutation device of Traditional DC motor, has again the mechanical property similar with direct current generator, and its magnet steel is placed on rotor, logical Producing rotating excitation field after constantly conversion stator winding electrifying mode drives rotor to rotate.Owing to rotor have employed permanent magnet knot Structure, brshless DC motor has that volume is little, lightweight, the feature of simple in construction.Along with the development of Power Electronic Technique, brushless directly The application of stream motor is more and more extensive.

Along with the high speed development of science and technology, all kinds of kinds for the high performance controller of motor control are more and more richer with function Richness, the most from strength to strength, the TMS320F2812DSP chip of such as TI company is as system controller, and it is main for data-handling capacity The advantage of control circuit maximum is that its data-handling capacity is strong, and functional module is enriched, it is thus possible to help to reduce the hardware of complexity Circuit design, it is achieved brshless DC motor closed-loop drive, and there is good stability.

Utility model content

For above-mentioned technical problem, the purpose of this utility model is to provide the DSP of a kind of brshless DC motor and controls device. By detection motor operating state parameter in real time, and combine the actual parameter of electric machine, provide the most reasonably for brshless DC motor, Most reliable control, and the running status that motor is monitored and controlled that Android APP is real-time can be passed through.

In order to realize above-mentioned technical purpose, the technical scheme that this utility model is used is:

The DSP of a kind of brshless DC motor controls device, including core controller module, Android APP monitoring module, upper Machine shows and control module, motor real-time state monitoring module, drive circuit module, deck power converter module；Wherein:

Described motor real-time state monitoring module is for gathering the real-time rotating speed of motor, current/voltage and Hall rotor position Confidence number, and the above-mentioned signal collected is sent to core controller module；Including Hall rotor-position acquisition module, electric current Acquisition Circuit, voltage collection circuit and rotating speed acquisition module；

Described host computer shows and control module is for by enforcement rotating speed, current/voltage and the Hall rotor-position number of motor According to showing；

Described Android APP monitoring module controls to be connected with kernel control module, for the bus electricity to brshless DC motor Pressure and electric current are monitored in real time and control the real-time of brshless DC motor；

Described deck power converter module respectively with core controller module, drive circuit module and brshless DC motor It is connected, for unidirectional current is converted to control the alternating current of brshless DC motor.

The concrete model of described core controller module is TMS320F2812.

Described Android APP monitoring module uses serial ports to turn WIFI module.

Isolation is realized by light-coupled isolation module between described core controller module and changed power device.

The optocoupler model that described light-coupled isolation module uses is HCPL-063.

Compared with prior art, the DSP control device of a kind of brshless DC motor of this utility model provides the benefit that:

This utility model uses TMS320F2812 motor to control DSP controller special, can be greatly improved brshless DC motor Control accuracy and stability；With use common single-chip microcomputer as compared with brushless direct current motor controller, it has good Speed adjusting performance and stability, reduce the torque pulsation of motor；Meanwhile, native system employing Android APP can the most conveniently Brshless DC motor is monitored and controlled.

Accompanying drawing explanation

Fig. 1 is population structure schematic diagram of the present utility model；

Fig. 2 is the system block diagram of TMS320 core controller of the present utility model；

Fig. 3 is power inverter of the present utility model (three phase full bridge) circuit theory diagrams；

Fig. 4 is optical coupling isolation circuit schematic diagram of the present utility model.

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, but described herein excellent Select embodiment to be merely to illustrate and explain this utility model, being not used to limit this utility model.

The population structure schematic diagram of the present embodiment system is as shown in Figure 1, it is provided that the DSP of a kind of brshless DC motor controls Device, shows including TMS320 core controller module, the real-time detection module of motor, Android APP monitoring module, host computer and controls Molding block, motor real-time state monitoring module, drive circuit module, power inverter (three phase full bridge) module and light-coupled isolation Module.On the one hand D.C. regulated power supply provides stable 3.3V voltage, on the other hand TMS320 core for TMS320 core controller Unidirectional current is passed through three-phase bridge by controlling the turn-on sequence of the switching tube of power inverter (three phase full bridge) module by heart controller Formula inverter circuit provides alternating current for brshless DC motor, and wherein TMS320 core controller passes through light-coupled isolation module and power Changer (three phase full bridge) is isolated, to ensure the safety of system.

TMS320 core controller module is also connected with motor real-time status state monitoring module, detects brushless direct-current in real time The real-time rotating speed of motor, real-time current voltage and rotor-position.TMS320 core controller also monitors mould with Android APP simultaneously Block is connected, and busbar voltage and bus current, the dutycycle of PWM, the state of motor that can monitor countless direct current generator in real time are rung Answer curve and control rotating speed and the rotating of motor.

The TMS320 core controller system block diagram of the present embodiment is as in figure 2 it is shown, TMS320F2812 is native system employing The concrete model of kernel control chip, its peripheral circuit includes JATG interface, PWM waveform output interface, A/D translation interface, outer If circuit, extending out RAM/FLASH storage, reset circuit, clock circuit, power circuit and CAN telecommunication circuit.

Power inverter (three phase full bridge) module of the present embodiment is as it is shown on figure 3, being total at drive circuit and main control chip Under same-action, the switch of corresponding power tube can be controlled.The conducting combination of power tube is divided into Q1Q4, Q3Q2, Q1Q6, Q3Q6, Q5Q2 and Q5Q4 these six kinds.And the alternating current needed for the operation offer that break-make order is brshless DC motor of power tube.Each All it is connected to a current-limiting resistance at the grid of power tube, power tube is played a protective role.

The optical coupling isolation circuit of the present embodiment as shown in Figure 4, owing to the GPIO pin of DSP only up to bear 3.3V's Level, so for six road PWM ripples of output from DSP, will isolate accordingly first with HCPL-063 chip, with Reach the purpose preventing DSP to be burned out, be fed to metal-oxide-semiconductor drive circuit the most again.It is 470 Ω's that No. 1 pin connects resistance Resistance R16, then connecting digital voltage is on the power supply of+5V, and No. 2 pins connect the PWM1 pin of DSP, and No. 3 pins connect DSP PWM2 pin, No. 4 pins connect the resistance R17 that resistances are 470 Ω, and then connecting digital voltage is on the power supply of+5V, No. 5 Pin ground connection, No. 6 pins connect the GPWM2 pin of DSP, and No. 7 pins connect the GPWM1 pin of DSP, and No. 8 pins connect simulation Voltage is the power supply of+5V.

In sum, the DSP of a kind of brshless DC motor of this utility model above-described embodiment controls device, has good Control accuracy and stability, powerful, structure is simpler.TMS320F2812 master controller not only has incident management Device (EVA/EVB), also AD data acquisition matches with it, and this makes this DSP control chip can be more masterlyly to electricity Machine is controlled.And achieve the real-time monitoring and control to brshless DC motor of Android APP, for later to brushless dc Machine is monitored and controlled and provides new direction.

Claims

1. the DSP of a brshless DC motor controls device, it is characterised in that: include that core controller module, Android APP monitor Module, host computer show and control module, motor real-time state monitoring module, drive circuit module, deck power converter module；Its In:

Described motor real-time state monitoring module is for gathering the real-time rotating speed of motor, current/voltage and Hall rotor-position letter Number, and the above-mentioned signal collected is sent to core controller module；Including Hall rotor-position acquisition module, current acquisition Circuit, voltage collection circuit and rotating speed acquisition module；

Described host computer shows and control module is for showing enforcement rotating speed, current/voltage and the Hall rotor position data of motor Illustrate；

Described Android APP monitoring module and kernel control module control to be connected, for the busbar voltage of brshless DC motor with Electric current is monitored in real time and controls the real-time of brshless DC motor；

Described deck power converter module respectively with core controller module, drive circuit module and brshless DC motor phase Even, for unidirectional current is converted to control the alternating current of brshless DC motor.

The DSP of a kind of brshless DC motor the most according to claim 1 controls device, it is characterised in that: described core control The concrete model of device module processed is TMS320F2812.

The DSP of a kind of brshless DC motor the most according to claim 1 controls device, it is characterised in that: described Android APP Monitoring module uses serial ports to turn WIFI module.

The DSP of a kind of brshless DC motor the most according to claim 1 controls device, it is characterised in that: described core control Isolation is realized by light-coupled isolation module between device module processed and changed power device.

The DSP of a kind of brshless DC motor the most according to claim 4 controls device, it is characterised in that: described optocoupler The optocoupler model that isolation module uses is HCPL-063.