Permanent magnet synchronous motor servo driver based on double-core MCU (Micro-programmed Control Unit)

A technology of permanent magnet synchronous motor and servo drive, which is applied in the direction of electronic commutator, motor control, single motor speed/torque control, etc. It can solve the problems of only stopping, unfavorable system integration of coprocessor chips, and increasing costs. , to achieve the effect of ensuring non-stop operation

Inactive Publication Date: 2017-05-24
SHANGHAI AEROSPACE CONTROL TECH INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technology of the present invention solves the problem: in the servo control process of the existing permanent magnet synchronous motor drive system, on the one hand, the field bus communication function and the motor control algorithm are becoming more and more complicated, and the single-core DSP is difficult to meet the demand, and the co-processing is added The method of the device chip is not conducive to system integration and increases the cost. On the other hand, it relies on the position sensor to provide real-time position information to drive the motor. After a failure, it can only stop and other problems. A permanent magnet synchronous motor based on a dual-core MCU is proposed. Driver and Control Method

Method used

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  • Permanent magnet synchronous motor servo driver based on double-core MCU (Micro-programmed Control Unit)
  • Permanent magnet synchronous motor servo driver based on double-core MCU (Micro-programmed Control Unit)
  • Permanent magnet synchronous motor servo driver based on double-core MCU (Micro-programmed Control Unit)

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Embodiment Construction

[0028] Such as figure 1As shown, the present invention is mainly composed of a dual-core MCU circuit 1, a position sensor interface circuit 2, a power amplifier circuit 3, a peripheral interface circuit 4, and a communication interface circuit 5. The dual-core MCU circuit 1 is the core circuit of the system, and is connected with the position sensor interface circuit 2 , the power amplifier circuit 3 , the peripheral interface circuit 4 and the communication interface circuit 5 . During the running process, the system communicates with the upper computer in real time through the communication interface circuit 5, receives control instructions and transmits the status data of the system. In addition, the system can also receive analog instructions through the AD interface in the peripheral interface circuit 4, and then deliver them to the first processor core of the dual-core MCU for digital-to-analog conversion, and the position sensor interface circuit 2 delivers the informat...

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Abstract

The invention provides a permanent magnet synchronous motor servo driver based on a double-core MCU (Micro-programmed Control Unit) and a control method, which are used for carrying out high-precision position servo control on a permanent magnet synchronous motor. A hardware part mainly comprises a double-core MCU circuit, a position sensor interface circuit, a power amplification circuit, a peripheral interface circuit and a communication interface circuit. On one hand, the driver is used for processing a motor control algorithm and a communication control protocol by adopting independent microcontroller inner cores respectively, so that the timeliness of communication is guaranteed and influences, caused by the communication, on a control algorithm performance are eliminated. On the other hand, the driver can be used for controlling a motor through a position senor and can also operate a position-free sensor control algorithm; software is switched in real time under two working modes so that the reliability of a system is improved.

Description

technical field [0001] The invention relates to a permanent magnet synchronous motor servo driver and a control method based on a dual-core MCU (Microcontroller Unit microcontroller unit), which is used for the servo control of a permanent magnet synchronous motor, has a variety of position sensors and communication interfaces, and can In the event of a failure, switch to the position sensorless control algorithm in real time to realize the highly reliable drive without stopping the servo drive under this failure. Background technique [0002] Compared with other types of motors, permanent magnet synchronous motors have the advantages of simple structure, large power / volume ratio, and good torque output performance. They are widely used in various automatic machines such as high-precision machine tools, industrial robots, electric vehicles, and coal mining machinery. control field. The high-performance and high-reliability permanent magnet synchronous motor driver and contr...

Claims

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Application Information

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IPC IPC(8): H02P6/08H02P6/16
CPCH02P6/08H02P6/16H02P2207/05
Inventor 张卫东毛琨周新秀曾凡铨陈曦
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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