阅读说明：本技术 一种混合定子材料驱动电机的控制系统 (Control system of hybrid stator material driving motor ) 是由 沈军 余得贵 魏宇 于 2019-11-06 设计创作，主要内容包括：本发明公开了一种混合定子材料驱动电机的控制系统,包括混合定子材料驱动电机、电源、控制和信号检测模块、硅钢定子PWM发生器、硅钢定子PWM驱动放大器、硅钢定子驱动电路、非晶定子PWM发生器、非晶定子PWM驱动放大器、非晶定子驱动电路；混合定子材料驱动电机设置有相互独立的非晶材料定子、硅钢定子；控制和信号检测模块的信号端分别与硅钢定子PWM发生器、非晶定子PWM发生器线路的信号端连接,硅钢定子PWM发生器的信号端通过硅钢定子PWM驱动放大器与硅钢定子驱动电路连接,非晶定子PWM发生器的信号端通过非晶定子PWM驱动放大器与非晶定子驱动电路连接,硅钢定子驱动电路、非晶定子驱动电路均与电源连接。(The invention discloses a control system of a mixed stator material driving motor, which comprises the mixed stator material driving motor, a power supply, a control and signal detection module, a silicon steel stator PWM generator, a silicon steel stator PWM driving amplifier, a silicon steel stator driving circuit, an amorphous stator PWM generator, an amorphous stator PWM driving amplifier and an amorphous stator driving circuit, wherein the power supply is connected with the control and signal detection module; the mixed stator material driving motor is provided with an amorphous material stator and a silicon steel stator which are mutually independent; the signal end of the control and signal detection module is respectively connected with the signal ends of the circuits of the silicon steel stator PWM generator and the amorphous stator PWM generator, the signal end of the silicon steel stator PWM generator is connected with the silicon steel stator driving circuit through a silicon steel stator PWM driving amplifier, the signal end of the amorphous stator PWM generator is connected with the amorphous stator driving circuit through an amorphous stator PWM driving amplifier, and the silicon steel stator driving circuit and the amorphous stator driving circuit are both connected with a power supply.)

1. A control system for a hybrid stator material drive motor, comprising a hybrid stator material drive motor characterized by: the mixed stator material driving motor comprises an amorphous material stator and a silicon steel stator which are mutually independent; the control system of the mixed stator material driving motor also comprises a power supply, a control and signal detection module taking a DSP chip as a core, a silicon steel stator PWM generator, a silicon steel stator PWM driving amplifier, a silicon steel stator driving circuit, an amorphous stator PWM generator, an amorphous stator PWM driving amplifier and an amorphous stator driving circuit; the signal output end of the control and signal detection module is respectively connected with the signal input ends of the circuits of the silicon steel stator PWM generator and the amorphous stator PWM generator, the signal output end of the silicon steel stator PWM generator is connected with the circuit of the silicon steel stator driving circuit through a silicon steel stator PWM driving amplifier, the signal output end of the amorphous stator PWM generator is connected with the circuit of the amorphous stator driving circuit through an amorphous stator PWM driving amplifier, and the silicon steel stator driving circuit and the amorphous stator driving circuit are both connected with a power supply circuit; the silicon steel stator driving circuit comprises IGBT tubes Q1, Q2, Q3, Q4, Q5 and Q6, wherein the positive electrode of a power supply is connected with one end of a capacitor C1, and drain electrodes of the IGBT tube Q1, the IGBT tube Q2 and the IGBT tube Q3 are connected; the source of the IGBT tube Q1 is connected with the drain of the IGBT tube Q4 and the mixed stator material driving motor circuit, the source of the IGBT tube Q2 is connected with the drain of the IGBT tube Q5 and the mixed stator material driving motor circuit, and the source of the IGBT tube Q3 is connected with the drain of the IGBT tube Q6 and the mixed stator material driving motor circuit; the grid electrodes of the IGBT tube Q1, the IGBT tube Q2, the IGBT tube Q3, the IGBT tube Q4, the IGBT tube Q5 and the IGB T tube Q6 are all connected with a signal output end circuit of the silicon steel stator PWM driving amplifier, and the other end of the capacitor C1, the source electrode of the IGBT tube Q4, the source electrode of the IGBT tube Q5 and the source electrode of the IGBT tube Q6 are all connected with a negative electrode circuit of a power supply; the amorphous stator driving circuit comprises IGBT tubes Q7, Q8, Q9, Q10, Q11 and Q12, wherein the positive electrode of a power supply is connected with one end of a capacitor C2, and the drains of the IGBT tube Q7, the IGBT tube Q8 and an I GBT tube Q9 are connected; the source of the IGBT tube Q7 is connected with the drain of the IGBT tube Q10 and the mixed stator material driving motor circuit, the source of the IGBT tube Q8 is connected with the drain of the IGBT tube Q11 and the mixed stator material driving motor circuit, and the source of the IGBT tube Q9 is connected with the drain of the IGBT tube Q12 and the mixed stator material driving motor circuit; the gates of the IGBT tube Q7, the IGBT tube Q8, the IGBT tube Q9, the IGBT T tube Q10, the IGBT tube Q11 and the IGBT tube Q12 are all connected with a signal output end circuit of the amorphous stator PWM drive amplifier, and the other end of the capacitor C2, the source of the IGBT tube Q10, the source of the IGBT tube Q11 and the source of the IGBT tube Q12 are all connected with a negative electrode circuit of a power supply.

2. The control system of a hybrid stator material drive motor of claim 1, wherein: the control system of the mixed stator material driving motor further comprises a bus voltage detection unit, a bus current detection unit, a driving circuit temperature detection unit, a silicon steel stator current detection unit, an amorphous stator current detection unit and a motor temperature detection unit; the signal acquisition ends of the bus voltage detection unit, the bus current detection unit and the drive circuit temperature detection unit are all connected with the silicon steel stator drive circuit, and the signal acquisition ends of the silicon steel stator current detection unit, the amorphous stator current detection unit and the motor temperature detection unit are all connected with the mixed stator material drive motor; and the signal output ends of the bus voltage detection unit, the bus current detection unit, the drive circuit temperature detection unit, the silicon steel stator current detection unit, the amorphous stator current detection unit and the motor temperature detection unit are connected with the signal input end of the control and signal detection module.

Technical Field

The invention relates to the field of new energy automobiles, in particular to a control system of a hybrid stator material driving motor.

Background

The new energy automobile is used as a substitute of a traditional fuel automobile, and the main electric system of the new energy automobile is a battery, a motor and an electric control system. The motor and the electric control system are used as substitutes of the functions of the traditional engine (gearbox), and the performance of the motor and the electric control system directly determines main performance indexes of the electric automobile such as climbing, acceleration, maximum speed and the like. The motor electric control system is used as an important ring of a new energy automobile industry chain, the technology and the manufacturing level of the motor electric control system directly influence the performance and the cost of a whole automobile, and the trend of the new energy automobile market is influenced to a great extent.

On the whole, the driving motor in China has made great progress, and part of performance indexes reach the international advanced level, but certain differences still exist between the aspects of the peak rotating speed, the power density, the efficiency and the like of the motor and abroad, and the continuous development and optimization of the motor and the control system thereof which are more efficient, more reliable and higher in cost performance are still the most important of the future development work of new energy automobiles.

Disclosure of Invention

The invention aims to solve the problems and provides a control system of a hybrid stator material driving motor, which can effectively improve the driving efficiency of a new energy automobile and has the whole automobile performance.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a control system of a mixed stator material driving motor comprises the mixed stator material driving motor, wherein the mixed stator material driving motor is provided with an amorphous material stator and a silicon steel stator which are mutually independent; the control system of the mixed stator material driving motor also comprises a power supply, a control and signal detection module taking a DSP chip as a core, a silicon steel stator PWM generator, a silicon steel stator PWM driving amplifier, a silicon steel stator driving circuit, an amorphous stator PWM generator, an amorphous stator PWM driving amplifier and an amorphous stator driving circuit; the signal output end of the control and signal detection module is respectively connected with the signal input ends of the circuits of the silicon steel stator PWM generator and the amorphous stator PWM generator, the signal output end of the silicon steel stator PWM generator is connected with the circuit of the silicon steel stator driving circuit through a silicon steel stator PWM driving amplifier, the signal output end of the amorphous stator PWM generator is connected with the circuit of the amorphous stator driving circuit through an amorphous stator PWM driving amplifier, and the silicon steel stator driving circuit and the amorphous stator driving circuit are both connected with a power supply circuit; the silicon steel stator driving circuit comprises IGBT tubes Q1, Q2, Q3, Q4, Q5 and Q6, wherein the positive electrode of a power supply is connected with one end of a capacitor C1, and drain electrodes of the IGBT tube Q1, the IGBT tube Q2 and the IGBT tube Q3 are connected; the source of the IGBT tube Q1 is connected with the drain of the IGBT tube Q4 and the mixed stator material driving motor circuit, the source of the IGBT tube Q2 is connected with the drain of the IGBT tube Q5 and the mixed stator material driving motor circuit, and the source of the IGBT tube Q3 is connected with the drain of the IGBT tube Q6 and the mixed stator material driving motor circuit; the grid electrodes of the IGBT tube Q1, the IGBT tube Q2, the IGBT tube Q3, the IGBT tube Q4, the IGBT tube Q5 and the IGBT tube Q6 are all connected with a signal output end circuit of the silicon steel stator PWM driving amplifier, and the other end of the capacitor C1, the source electrode of the IGBT tube Q4, the source electrode of the IGBT tube Q5 and the source electrode of the IGBT tube Q6 are all connected with a negative electrode circuit of a power supply; the amorphous stator driving circuit comprises IGBT tubes Q7, Q8, Q9, Q10, Q11 and Q12, wherein the positive electrode of a power supply is connected with one end of a capacitor C2, and drain electrodes of the IGBT tube Q7, the IGBT tube Q8 and the IGBT tube Q9 are connected; the source of the IGBT tube Q7 is connected with the drain of the IGBT tube Q10 and the mixed stator material driving motor circuit, the source of the IGBT tube Q8 is connected with the drain of the IGBT tube Q11 and the mixed stator material driving motor circuit, and the source of the IGBT tube Q9 is connected with the drain of the IGBT tube Q12 and the mixed stator material driving motor circuit; the gates of the IGBT Q7, the IGBT Q8, the IGBT Q9, the IGBT Q10, the IGBT Q11 and the IGBT Q12 are all connected with a signal output end line of the amorphous stator PWM driving amplifier, and the other end of the capacitor C2, the source of the IGBT Q10, the source of the IGBT Q11 and the source of the IGBT Q12 are all connected with a negative electrode line of a power supply.

Furthermore, the control system of the mixed stator material driving motor further comprises a bus voltage detection unit, a bus current detection unit, a driving circuit temperature detection unit, a silicon steel stator current detection unit, an amorphous stator current detection unit and a motor temperature detection unit; the signal acquisition ends of the bus voltage detection unit, the bus current detection unit and the drive circuit temperature detection unit are all connected with the silicon steel stator drive circuit, and the signal acquisition ends of the silicon steel stator current detection unit, the amorphous stator current detection unit and the motor temperature detection unit are all connected with the mixed stator material drive motor; and the signal output ends of the bus voltage detection unit, the bus current detection unit, the drive circuit temperature detection unit, the silicon steel stator current detection unit, the amorphous stator current detection unit and the motor temperature detection unit are connected with the signal input end of the control and signal detection module.

Compared with the prior art, the invention has the advantages and positive effects that:

when the control and signal detection module works, the control and signal detection module with the DSP chip as a core respectively controls the silicon steel stator driving circuit and the amorphous stator driving circuit through the two PWM generators, and three different control strategies are mainly realized;

when the new energy automobile is in a low-speed running working condition, the automobile requires that the driving motor has small output torque, low rotating speed and low power, the advantages of the amorphous stator under the low frequency can not be reflected, and meanwhile, the output power of the amorphous stator part is limited, so that the running requirement can be met only by carrying out power-on control on the silicon steel stator unit. The control unit consists of a control and signal detection module, a silicon steel stator PWM generator, a silicon steel stator PWM drive amplifier and a silicon steel stator drive circuit, and the control of the drive motor depends on the detection states of signals such as a silicon steel stator current signal, a motor temperature, a bus current, a bus voltage and the like; the detection unit transmits the detection signal to the control and signal detection module, and the control and signal detection module controls the silicon steel stator PWM generator according to the signal state, so that the control of the driving motor is realized through the silicon steel stator driving circuit;

because the amorphous stator has the characteristic of low loss and high frequency that the silicon steel stator does not have, when the new energy automobile is in the high-speed driving working condition, the vehicle requires the driving motor to output small torque, high rotational speed, power are small, therefore only carry on the electric control to the amorphous stator unit, the magnetic induction intensity inside the amorphous stator is weak under the high-frequency low-power state, the magnetostrictive effect is small, the noise is low, because of the good high-frequency characteristic of the amorphous, the operating efficiency of the electrical machinery is still very high at this moment; the control unit consists of a control and signal detection module, an amorphous stator PWM generator, an amorphous stator PWM drive amplifier and an amorphous stator drive circuit, the control of the drive motor also depends on the state detection of various signals, and the control principle of the control unit is the same as the control mode of the silicon steel stator;

when the new energy vehicle is in heavy load working conditions such as starting, climbing long slopes and overtaking at high speed, the vehicle requires the motor to keep outputting large torque and high power, and the silicon steel stator control unit and the amorphous stator control unit are started simultaneously, so that the whole motor outputs maximum torque and maximum power. Algorithm decision and coordination are carried out through internal software of the control and signal detection module, the control and signal detection module and the signal detection module simultaneously start the driving motor, and when the driving is carried out simultaneously, real-time dynamic decision is carried out on the torque output ratio of the silicon steel motor and the amorphous motor through the DSP chip according to the running condition of the vehicle.

The mixed stator material driving motor consists of two stators, so that the motor outputs 6 wires which are a silicon steel stator three-phase outgoing wire and an amorphous stator three-phase outgoing wire respectively, the silicon steel stator three-phase outgoing wire is connected with a silicon steel stator driving circuit, and the amorphous stator three-phase outgoing wire is connected with an amorphous stator driving circuit. The motor control is realized by outputting 3 PWM combinations with different duty ratios by 6 IGBT power tubes according to a vector control algorithm.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a frame structure diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art without any creative effort, should be included in the protection scope of the present invention.

As shown in fig. 1, a control system of a hybrid stator material driving motor includes a hybrid stator material driving motor M, wherein the hybrid stator material driving motor M is provided with an amorphous material stator and a silicon steel stator which are independent of each other; the control system of the mixed stator material driving motor also comprises a power supply, a control and signal detection module taking a DSP chip as a core, a silicon steel stator PWM generator, a silicon steel stator PWM driving amplifier, a silicon steel stator driving circuit, an amorphous stator PWM generator, an amorphous stator PWM driving amplifier and an amorphous stator driving circuit; the signal output end of the control and signal detection module is respectively connected with the signal input ends of the circuits of the silicon steel stator PWM generator and the amorphous stator PWM generator, the signal output end of the silicon steel stator PWM generator is connected with the circuit of the silicon steel stator driving circuit through a silicon steel stator PWM driving amplifier, the signal output end of the amorphous stator PWM generator is connected with the circuit of the amorphous stator driving circuit through an amorphous stator PWM driving amplifier, and the silicon steel stator driving circuit and the amorphous stator driving circuit are both connected with a power supply circuit; the silicon steel stator driving circuit comprises IGBT tubes Q1, Q2, Q3, Q4, Q5 and Q6, wherein the positive electrode of a power supply is connected with one end of a capacitor C1, and drain electrodes of the IGBT tube Q1, the IGBT tube Q2 and the IGBT tube Q3 are connected; the source of the IGBT tube Q1 is connected with the drain of the IGBT tube Q4 and the mixed stator material driving motor M in a circuit manner, the source of the IGBT tube Q2 is connected with the drain of the IGBT tube Q5 and the mixed stator material driving motor M in a circuit manner, and the source of the IGBT tube Q3 is connected with the drain of the IGBT tube Q6 and the mixed stator material driving motor M in a circuit manner; the grid electrodes of the IGBT tube Q1, the IGBT tube Q2, the IGBT tube Q3, the IGBT tube Q4, the IGBT tube Q5 and the IGBT tube Q6 are all connected with a signal output end circuit of the silicon steel stator PWM driving amplifier, and the other end of the capacitor C1, the source electrode of the IGBT tube Q4, the source electrode of the IGBT tube Q5 and the source electrode of the IGBT tube Q6 are all connected with a negative electrode circuit of a power supply; the amorphous stator driving circuit comprises IGBT tubes Q7, Q8, Q9, Q10, Q11 and Q12, wherein the positive electrode of a power supply is connected with one end of a capacitor C2, and drain electrodes of the IGBT tube Q7, the IGBT tube Q8 and the IGBT tube Q9 are connected; the source of the IGBT tube Q7 is connected with the drain of the IGBT tube Q10 and the mixed stator material driving motor M in a circuit manner, the source of the IGBT tube Q8 is connected with the drain of the IGBT tube Q11 and the mixed stator material driving motor M in a circuit manner, and the source of the IGBT tube Q9 is connected with the drain of the IGBT tube Q12 and the mixed stator material driving motor M in a circuit manner; the gates of the IGBT Q7, the IGBT Q8, the IGBT Q9, the IGBT Q10, the IGBT Q11 and the IGBT Q12 are all connected with a signal output end line of the amorphous stator PWM driving amplifier, and the other end of the capacitor C2, the source of the IGBT Q10, the source of the IGBT Q11 and the source of the IGBT Q12 are all connected with a negative electrode line of a power supply.

The control system of the mixed stator material driving motor further comprises a bus voltage detection unit, a bus current detection unit, a driving circuit temperature detection unit, a silicon steel stator current detection unit, an amorphous stator current detection unit and a motor temperature detection unit; the signal acquisition ends of the bus voltage detection unit, the bus current detection unit and the drive circuit temperature detection unit are all connected with the silicon steel stator drive circuit, and the signal acquisition ends of the silicon steel stator current detection unit, the amorphous stator current detection unit and the motor temperature detection unit are all connected with the mixed stator material drive motor; and the signal output ends of the bus voltage detection unit, the bus current detection unit, the drive circuit temperature detection unit, the silicon steel stator current detection unit, the amorphous stator current detection unit and the motor temperature detection unit are connected with the signal input end of the control and signal detection module.

When the control and signal detection module works, the control and signal detection module with the DSP chip as a core respectively controls the silicon steel stator driving circuit and the amorphous stator driving circuit through the two PWM generators, and three different control strategies are mainly realized;

when the new energy automobile is in a low-speed running state, the control unit consists of a control and signal detection module, a silicon steel stator PWM generator, a silicon steel stator PWM drive amplifier and a silicon steel stator drive circuit, and the control of the control unit on the drive motor depends on the detection states of signals such as a silicon steel stator current signal, motor temperature, bus current, bus voltage and the like; the detection unit transmits the detection signal to the control and signal detection module, and the control and signal detection module controls the silicon steel stator PWM generator according to the signal state, so that the control of the driving motor is realized through the silicon steel stator driving circuit;

when the new energy automobile runs at a high speed, the control unit consists of a control and signal detection module, an amorphous stator PWM generator, an amorphous stator PWM drive amplifier and an amorphous stator drive circuit, the control of the drive motor also depends on the state detection of various signals, and the control principle of the control unit is the same as the control mode of the silicon steel stator;

when the new energy automobile is in a large-torque starting and climbing state, the silicon steel stator control unit and the amorphous stator control unit are started simultaneously, algorithm decision and coordination are carried out through internal software of the control and signal detection module, the silicon steel stator control unit and the amorphous stator control unit simultaneously start the driving motor, and when the driving is carried out simultaneously, torque output duty ratio of the silicon steel motor and the amorphous motor is dynamically decided in real time through the DSP chip according to the running condition of the automobile.

The mixed stator material driving motor consists of two stators, so that the motor outputs 6 wires which are a silicon steel stator three-phase outgoing wire and an amorphous stator three-phase outgoing wire respectively, the silicon steel stator three-phase outgoing wire is connected with a silicon steel stator driving circuit, and the amorphous stator three-phase outgoing wire is connected with an amorphous stator driving circuit. The motor control is realized by outputting 3 PWM combinations with different duty ratios by 6 IGBT power tubes according to a vector control algorithm.

The mixed stator material driving motor consists of two stators, so that 6 wires are output from the motor and are respectively a silicon steel stator three-phase outgoing wire and an amorphous stator three-phase outgoing wire, the silicon steel stator three-phase outgoing wire is connected with a silicon steel stator driving circuit, and the amorphous stator three-phase outgoing wire is connected with an amorphous stator driving circuit. The motor control is realized by 6 IGBT power tubes outputting 3 different PWM combinations according to a vector control algorithm.