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A permanent magnet synchronous motor control chip based on fpga

A permanent magnet synchronous motor and control chip technology, applied in the direction of motor generator control, electronic commutation motor control, control system, etc., can solve the problem of DSP control motor speed bottleneck, etc., to achieve flexible distribution, fast running speed, and flexible design Effect

Active Publication Date: 2016-05-25
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the speed bottleneck problem of the current DSP control motor, it is proposed to use FPGA as the main control chip to integrate signal acquisition, digital operation, control, communication and other functions into one, and complete the motor frequency conversion and speed regulation vector control function on a single chip

Method used

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  • A permanent magnet synchronous motor control chip based on fpga
  • A permanent magnet synchronous motor control chip based on fpga
  • A permanent magnet synchronous motor control chip based on fpga

Examples

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Embodiment Construction

[0013] attached figure 1 It is a block diagram of the servo control system. The system includes: FPGA control chip, power drive board, permanent magnet synchronous motor M, current, photoelectric pulse acquisition board, upper computer PC, memory Flash and SDRAM.

[0014] The peripheral circuit of FPGA includes: providing 5V power supply for FPGA chip, external crystal oscillator frequency, download circuit, off-chip memory chip, buttons and LED indicators, GPIO pins. The power drive board provides AC-DC rectification and provides DC bus voltage for the three-phase bridge arm. The power drive board and the control board are connected through six PWM pulse signals, and the optocoupler is used to isolate the strong and weak currents. The PWM controls the three-phase six IGBT switch tubes respectively to realize DC-AC inversion, and provides three-phase alternating current for the motor to drive the motor to rotate. . The linear Hall sensor on the power driver board collects U ...

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Abstract

A permanent magnet synchronous motor control chip based on an FPGA is used as a main control chip in a permanent magnet synchronous motor variable frequency speed control system, integrates an external signal collection function, a coordinate transformation function, an SVPWM drive function, a PI regulating function, a rotor original locating function and a communication function of NiosII and a PC upper computer, and achieves speed and current double-close-loop control. The chip is high in calculation speed, accurate in calculation, high in integration degree, flexible and simple in design, and wide in application prospect.

Description

technical field [0001] The invention relates to a chip for controlling frequency conversion and speed regulation of a permanent magnet synchronous motor based on FPGA. technical background [0002] In the automatic control system, the system whose output can accurately and quickly follow the change of the input is called a servo system. The permanent magnet synchronous motor is used as the actuator, so the system can be called the permanent magnet synchronous motor servo system. The servo system is divided into position servo and speed servo. The FPGA control chip referred to in the article is used as the main control chip of the speed servo system. [0003] The permanent magnet synchronous motor servo system is mainly applied to precision equipment. Widely used in aerospace, robotics and CNC machine tools and other fields. The output response of the motor, dynamic following and static error and other indicators determine the performance of the entire servo system and ev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00
Inventor 陈平蔡述庭谢云
Owner GUANGDONG UNIV OF TECH
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