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Switched reluctance motor open winding control system and control method

A switched reluctance motor and control system technology, applied in control systems, AC motor control, electrical components, etc., can solve problems such as excessive torque ripple, reduce torque ripple, achieve smooth operation, reduce vibration and effect of noise

Active Publication Date: 2019-09-17
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a switched reluctance motor open-winding control system and control method, which are used to solve the technical problem of excessive torque ripple caused by the square wave control and chopper control of the existing switched reluctance motor

Method used

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  • Switched reluctance motor open winding control system and control method
  • Switched reluctance motor open winding control system and control method
  • Switched reluctance motor open winding control system and control method

Examples

Experimental program
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Effect test

Embodiment 1

[0052] A switched reluctance motor open winding control system 100, such as figure 1 As shown, including: controller, current sensor, position sensor, and open winding inverter;

[0053] The controller is used for receiving and based on the three-phase current feedback value of the switched reluctance motor collected by the current sensor and the speed feedback value and position feedback value of the switched reluctance motor collected by the position sensor, and adopts an AC motor speed-current double closed loop Vector control method, controlling the open-winding inverter to generate bipolar sinusoidal current with DC bias;

[0054] Open-winding inverter for injecting bipolar sinusoidal current with DC bias into a switched reluctance motor.

[0055] It should be noted that the current sensor is used to detect the corresponding three-phase current on the three-phase stator winding of the switched reluctance motor; the position sensor is used to detect the mechanical speed a...

Embodiment 2

[0103] A switched reluctance motor open winding control method 200, such as Figure 5 shown, including:

[0104] Step 210, collecting the speed feedback value, position feedback value and three-phase current feedback value of the switched reluctance motor in real time;

[0105] Step 220: Based on the given rotational speed value, rotational speed feedback value and position feedback value, two PWM control signals are obtained by adopting the AC motor rotational speed-current double closed-loop vector control method;

[0106] Step 230 , based on the two PWM control signals, drive the open-winding inverter to generate a bipolar sinusoidal current with DC bias and inject it into the switched reluctance motor to complete the open-winding control of the switched reluctance motor.

[0107] The analysis of related technical solutions such as bipolar sinusoidal current with DC bias, open-winding inverter, and two PWM control signals is the same as that in Embodiment 1, and will not be ...

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Abstract

The invention discloses a switched reluctance motor open winding control system and method. The system comprises a controller, a current sensor, a position sensor and an open winding inverter. The controller is used for receiving a three-phase current feedback value of the switched reluctance motor collected by the current sensor and a position and rotating speed feedback value of the switched reluctance motor collected by the position sensor and controlling the open winding inverter to generate bipolar sinusoidal current with DC bias and inject the bipolar sinusoidal current into the switched reluctance motor. based on a three-phase current feedback value of the switched reluctance motor collected by the current sensor and a position and rotating speed feedback value of the switched reluctance motor collected by the position sensor by adopting an AC motor rotating speed-current double closed-loop vector control method. The controller is introduced. The system is based on AC motor rotating speed-current double closed-loop vector control. By utilizing a three-phase open winding inverter, bipolar sine wave current injection with DC bias current is realized, the torque pulsation of the switched reluctance motor is effectively reduced, the flexible adjustment of an excitation magnetic field is realized. The system is suitable for a high-performance switched reluctance motor driving system with higher requirements on torque pulsation and torque output, and is wide in application range.

Description

technical field [0001] The invention belongs to the technical field of motor drive control, and in particular relates to a switched reluctance motor open winding control system and control method. Background technique [0002] With the development of my country's industry and manufacturing industry, energy issues have become a hot spot of social concern, and the use of clean new energy is imperative. Electric energy has played an important role in replacing fossil energy in various aspects such as industrial production and transportation. Among them, the motor, as the most critical component in electromechanical energy conversion, plays an irreplaceable role in the industrial application of electric energy. Compared with the internal combustion engine, the motor has a series of advantages such as flexible control, less pollution, and less vibration and noise. Therefore, the application of the motor has attracted widespread attention. [0003] In the motor drive system, the ...

Claims

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Application Information

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IPC IPC(8): H02P25/098H02P25/092
CPCH02P25/092H02P25/098
Inventor 甘醇俞志跃曲荣海孔武斌李大伟孙剑波
Owner HUAZHONG UNIV OF SCI & TECH
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