Permanent magnet synchronous motor drive power board circuit and design method thereof

Abstract

The invention discloses a permanent magnet synchronous motor drive power board circuit and a design method thereof; the power board circuit comprises a rectifying and filtering module, an IPM power circuit module, an IPM drive circuit module, a bus voltage acquisition circuit module, a motor phase current acquisition circuit module, a power supply circuit module, a protection circuit module and asignal transmission interface circuit, wherein the input alternating current is under the action of the rectifying and filtering module, a direct-current bus voltage is obtained to be used as direct-current input of the IPM power module, and an inverter direct-current power supply is provided; a turn-on and turn-off signal of an IGBT tube of the IPM power module is input by an IPM driving circuit;the power supply circuit provides a required power supply for a power board chip and the IPM power module; the bus voltage acquisition circuit and the motor phase current acquisition circuit transmitthe collected signals to a control chip; when the control chip detects that the circuit is abnormal, a protection circuit is controlled and started to work and turn off the IPM driving circuit; and the signal transmission interface circuit is in information interaction with the motor controller.

Description

technical field [0001] The invention relates to the technical field of speed regulation control of permanent magnet synchronous motors, and mainly relates to a permanent magnet synchronous motor drive circuit and a related method. At the same time, a host computer program communicating with it is compiled by using C# language. Background technique [0002] Due to the advantages of high power density, high efficiency, and high reliability, permanent magnet synchronous motors have replaced traditional asynchronous motor servo systems and have been widely used in industrial robots, aerospace, and industrial manufacturing. [0003] At present, in the actual industrial application control system of permanent magnet synchronous motors, various advanced control algorithms have been widely used, and the control performance of permanent magnet synchronous motors has been greatly improved. Advanced control algorithms are very important for improving the performance of permanent magnet ...

AI Technical Summary

Problems solved by technology

At present, there are many research literatures on various control algorithms of permanent magnet synchronous motors, and there are relatively few designs on the drive circuits of permanent magnet synchronous motors.

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