Control method and system for switched reluctance motor

A technology of switched reluctance motor and control method, applied in the field of switch reluctance motor control and switched reluctance motor control system, can solve problems such as large torque ripple, and achieve the purpose of suppressing torque ripple, suppressing current spikes, strong The effect of adaptive capacity

Active Publication Date: 2018-09-28
JIANGSU UNIV OF TECH
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Problems solved by technology

[0004] The present invention provides a control method and system for a switched reluctance motor in order to solve the technical problem of large torque ripple when the switched reluctance motor is running

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  • Control method and system for switched reluctance motor
  • Control method and system for switched reluctance motor
  • Control method and system for switched reluctance motor

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Such as figure 1 As shown, the control method of the switched reluctance motor of the present invention comprises the following steps:

[0026] S1, obtain the given rotational speed of the switched reluctance motor.

[0027] S2, acquiring the rotor position signal of the switched reluctance motor and the phase current of each phase.

[0028] In one embodiment of the present invention, the switched reluctance motor can be selected as a three-phase 6 / 4 ...

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Abstract

The invention provides a control method and system for a switched reluctance motor, for solving the technical problem of large torque pulsation when the switched reluctance motor operates. The controlmethod comprises the following steps: obtaining a given rotational speed of a switched reluctance motor; acquiring a rotor position signal of the switched reluctance motor and the phase current of each phase; calculating the feedback rotational speed of the switched reluctance motor according to the rotor position signal; calculating the desired torque of the switched reluctance motor according to the given rotational speed and the feedback rotational speed; according to the desired torque, distributing the output torque of each phase of the switched reluctance motor, and calculating the desired current of each phase of the switched reluctance motor according to the output torque of each phase of the switched reluctance motor; according to the desired current and phase current of each phase of the switched reluctance motor, adopting a neural network adaptive robust sliding mode control algorithm to generate a corresponding driving signal, and controlling the switched reluctance motoraccording to the driving signal. The control method and system for the switched reluctance motor in the invention can effectively suppress the torque pulsation of the switched reluctance motor.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a control method of a switched reluctance motor and a control system of a switched reluctance motor. Background technique [0002] The switched reluctance motor has a simple structure, low cost, high reliability, and superior performance. Its rotor has no windings and permanent magnets, and can run at high and ultra-high speeds. It is also suitable for various harsh environments and has broad application prospects. [0003] However, due to its nonlinear structure, the torque ripple is large during operation, and the noise problem is prominent. Under the traditional control method, these problems cannot be effectively solved. Reducing the torque ripple of switched reluctance motors is an outstanding problem and research difficulty in the field of electric drive and motor control. Contents of the invention [0004] The invention provides a control method and system for a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/098H02P23/00
CPCH02P23/0009H02P23/0013H02P23/0018H02P23/0022H02P25/098
Inventor 倪福银赵源沃松林王琪陈立兴诸一琦
Owner JIANGSU UNIV OF TECH
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