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A Control Method for Simultaneously Suppressing Torque Ripple and Vibration of Switched Reluctance Motor

A technology of switched reluctance motor and control method, applied in the direction of torque ripple control, AC motor control, control system, etc., can solve the problems of not combining solutions and so on

Active Publication Date: 2021-08-20
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But most of them only considered one aspect of torque ripple or vibration and noise, and did not combine the two to propose a solution

Method used

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  • A Control Method for Simultaneously Suppressing Torque Ripple and Vibration of Switched Reluctance Motor
  • A Control Method for Simultaneously Suppressing Torque Ripple and Vibration of Switched Reluctance Motor
  • A Control Method for Simultaneously Suppressing Torque Ripple and Vibration of Switched Reluctance Motor

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] According to the specific experiments and combined Figure 4 , the present invention will be further described.

[0046] The experimental prototype uses a 12 / 8-pole three-phase switched reluctance motor with a rated power of 4kW and a rated speed of 2200rpm.

[0047] Microcontroller 1 uses single-chip microcomputer STM32F103RBT6, and C1, C2, and C3 use voltage-type Hall current sensors, which can transmit three-phase current signals to the single-chip microcomputer. The single-chip microcomputer converts the analog signal into a digital signal through the A / D conversion module for internal program processing. The position detection unit is composed of the rotor position measurement tooth plate, three slot-type Hall switch devices and corresponding circuits. The MCU obtains the state of the three Hall switches through the input capture interrupt, so as to determine the current position of the rotor.

[0048] The control program adopts the control strategy of the prese...

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Abstract

The invention provides a control method for simultaneously suppressing torque ripple and vibration of a switched reluctance motor, belonging to the technical field of switched reluctance motors. The present invention can control the three objects of speed, torque and radial force. Under the condition that the motor has good speed characteristics, the output torque of the motor is smoother, the torque ripple is obviously reduced, and it is ensured that the motor has good speed characteristics. The system runs more smoothly and efficiently. At the same time, the radial vibration of the stator of the switched reluctance motor is effectively reduced, and the vibration noise generated by it is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of switched reluctance motors, and relates to a control method for simultaneously suppressing torque ripple and vibration of switched reluctance motors. Background technique [0002] As a new type of special motor, switched reluctance motor (SRM) has the characteristics of simple and firm structure, good speed regulation performance, many controllable parameters, high starting torque, low starting current, and is suitable for harsh environments, so it shows broad potential Application prospect. [0003] However, the switched reluctance motor has its inherent disadvantages, that is, there is a large torque ripple and vibration noise. When the switched reluctance motor is running at a low speed, it often produces a large torque ripple, which is mainly affected by the switching form and nonlinear factors. The vibration noise of the switched reluctance motor is mainly caused by the radial vibration of the stat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P25/098H02P6/10
CPCH02P6/10H02P25/098
Inventor 孙建忠贺锡之白凤仙
Owner DALIAN UNIV OF TECH
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