Method for launching three-phase switched reluctance motor (SRM)

A reluctance motor, three-phase switch technology, applied in the direction of starting devices, etc., can solve the problems of increased phase winding current, easy to burn the motor and controller, and the motor cannot be started, so as to improve the starting torque, easy to implement, and structural clear effect

Inactive Publication Date: 2012-06-13
南通通微电机科技有限公司 +1
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  • Abstract
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Problems solved by technology

However, when the load is heavy, if the salient poles of the motor rotor and the salient poles of the stator are in a completely facing position or a completely non-facing position, the starting torque of the motor will be smaller than the load torque at this time. As a result, the motor will not start, but the corresponding However, the winding current keeps increasing, which can easily burn the motor and controller

Method used

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  • Method for launching three-phase switched reluctance motor (SRM)
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  • Method for launching three-phase switched reluctance motor (SRM)

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0020] Such as image 3 As shown, the ones marked with 1 are the four salient poles of the stator A phase; the ones marked with 2 are the four salient poles of the stator B phase; the ones marked with 3 are the four salient poles of the stator C phase.

[0021] Such as figure 2 As shown, the position sensor of the three-phase switched reluctance motor has two power lines, three signal lines, and six states to divide the motor rotor position into six different intervals...

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Abstract

The invention discloses a method for launching a three-phase switched reluctance motor (SRM), which is characterized in that when a system is initialized, a position signal and a starting phase mapping table are built and initialized; when a motor is started, the position signal and the starting phase mapping table are searched in accordance with a rotor position; if the rotor of the motor is arranged at a position in which inductance variation is smaller, a two-phase starting mode is adopted; and if the rotor of the motor is arranged at a position in which inductance variation is larger, a one-phase starting mode is adopted. In the method, aiming at different rotor positions at the time of startup, the position signal and the starting phase mapping table are built; and by searching and determining an existing starting phase in the mapping table, the starting torque of the SRM is improved. Meanwhile, the method provided by the invention is clear in structure, strong in anti-interference and easy to realize.

Description

technical field [0001] The invention relates to a starting method of a switched reluctance motor, which belongs to the field of motor control. Background technique [0002] Switched reluctance motor is a new type of speed control drive system developed with the rapid development of power electronics, microcomputer and control technology in the early 1980s. It has the outstanding characteristics of simple structure, reliable operation and high efficiency, and has become an AC motor speed control system. , DC motor speed control system and a strong competitor of brushless DC motor speed control system, which has attracted extensive attention from scholars and business circles from various countries. At present, it has been successfully applied in many fields such as electric vehicle drive system, household appliances, industrial application, servo system, high-speed drive, aerospace and so on. Its advantages include: good low-speed performance, no inrush current phenomenon wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/20
Inventor 钟锐徐宇柘林涛孙伟锋陆生礼时龙兴
Owner 南通通微电机科技有限公司
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