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Brushless direct-current motor fuzzy PI controller based on FPGA

A DC motor and controller technology, applied in the direction of a single motor speed/torque control, electronic commutator, etc., can solve the problems of slow PID algorithm execution, motor control lag, fuzzy PI controller, etc., to solve anti-interference The effect of poor capability, reliable operation and high control precision

Inactive Publication Date: 2014-12-10
HARBIN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present invention is to solve the problem that the existing brushless DC motor adopts the fuzzy self-adaptive PID algorithm to control the motor. Due to the slow execution speed of the PID algorithm, the control lag of the motor is caused, and a fuzzy brushless DC motor based on FPGA is provided. PI controller

Method used

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  • Brushless direct-current motor fuzzy PI controller based on FPGA
  • Brushless direct-current motor fuzzy PI controller based on FPGA
  • Brushless direct-current motor fuzzy PI controller based on FPGA

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specific Embodiment approach 1

[0037] Specific implementation mode one: the following combination Figure 1 to Figure 10 Describe this embodiment, the brushless DC motor fuzzy PI controller based on FPGA described in this embodiment, it comprises FPGA main control module 1, power and drive module 2, current acquisition module 3, AD conversion module 4 and human-computer interaction module 5,

[0038] FPGA main control module 1 includes filter module 1-1, ADC interface 1-2, speed calculation module 1-3, speed fuzzy PI adjustment module 1-4, current PI adjustment module 1-5, PWM modulation and phase commutation module 1- 6 and human-computer interaction interface 1-7,

[0039] The filter module 1-1 is used to filter the Hall position signal, and transmit the filtered Hall position signal to the speed calculation module 1-3; the Hall position signal is obtained by the Hall position sensor of the brushless DC motor rotor. collected;

[0040] The speed calculation module 1-3 calculates and obtains the motor s...

specific Embodiment approach 2

[0067] Embodiment 2: This embodiment further explains Embodiment 1. The power and drive module 2 includes a three-phase full-bridge inverter module, an IR2136 drive module, a power conversion module, a Hall signal acquisition module and a power supply module.

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Abstract

The invention discloses a brushless direct-current motor fuzzy PI controller based on FPGA, belongs to the technical field of motor control and aims to solve the problems that according to the existing brushless direct-current motor adopts a fuzzy adaptive PID algorithm to control the motor, and the control of the motor is delayed since the executing speed is low. A filter module filters and transmits Holzer position signals to a speed calculation module; the speed calculation module calculates to acquire the motor speed feedback signals in real time; a speed fuzzy PI adjusting module calculates to acquire current adjusting determined signals; a current PI adjusting module adopts the traditional PI algorithm to modulate the current of the motor to acquire and transmit PWM modulation signals to a PWM modulation and commutation module; the PWM modulation and commutation module transmits commutation signals and PWM modulation signals to a power drive module to drive a brushless direct-current motor. The controller is applied to control of the brushless direct-current motor.

Description

technical field [0001] The invention relates to a fuzzy PI controller of a brushless DC motor based on FPGA, belonging to the technical field of motor control. Background technique [0002] The brushless DC motor consists of a motor body and a driver, and is a typical mechatronic product. Brushless DC motors have been widely used in automobiles, electric vehicles, tools, industrial control, automation, aerospace and other fields due to their advantages of simple structure, good mechanical characteristics and good speed regulation characteristics. Traditional brushless DC motor controllers mostly use single-chip microcomputer or DSP as the main control chip, and the characteristics of its software implementation have brought many defects: [0003] (1) In actual production, peak pulses often appear in the motor control system, which will interfere with the software controller, such as DSP or single-chip microcomputer, and cause the program to run away, directly affecting the ...

Claims

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Application Information

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IPC IPC(8): H02P6/06H02P6/16
Inventor 温嘉斌麻宸伟
Owner HARBIN UNIV OF SCI & TECH
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