Doubly salient permanent magnet motor phase current driving switch control method and system

A permanent magnet motor and drive switch technology, applied in control systems, current controllers, electronic commutation motor control, etc., can solve the problems of short service life, short turn-on time of drive switches, and inability to drive and control two-phase FDSPM motors. , to achieve the effect of prolonging the service life and prolonging the conduction time

Active Publication Date: 2019-12-13
FOSHAN UNIVERSITY
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Problems solved by technology

[0017] The methods of the above-mentioned types of prior art have the technical problem that the drive switch conduction t

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  • Doubly salient permanent magnet motor phase current driving switch control method and system
  • Doubly salient permanent magnet motor phase current driving switch control method and system
  • Doubly salient permanent magnet motor phase current driving switch control method and system

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Embodiment Construction

[0054] The concept, specific structure and technical effects of the present disclosure will be clearly and completely described below in conjunction with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the present disclosure. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0055] The present disclosure proposes a phase current drive switch control method of a doubly salient permanent magnet motor, which specifically includes the following steps:

[0056] Step 1, build a torque generation model;

[0057] Step 2, generating torque output through the torque generation model;

[0058] Step 3, obtaining the conduction state of the phase current according to the torque output;

[0059] Step 4: Control the on-off of the switch according to the on-state of the phase current.

[0060] Further, in step 1, the method of constr...

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Abstract

The invention discloses a doubly salient permanent magnet motor phase current driving switch control method and system. Firstly, ideal flux linkage distribution and a current switch state are given. Afour-state control method of a switch on-off mode of a driving switch circuit is acquired. Through nonlinear model analysis and testing, a counter electromotive force is verified, and through dynamicmodel analysis, a result shows effectiveness of a proposed on-off control method of a current switch of a two-phase FMDSPM phase winding, and conduction time of a driving switch is prolonged so thata service life is prolonged, driving control is effectively executed on a two-phase FMDSPM motor. A two-phase motor can be formed in a two-phase winding continuous single-phase working mode, and a two-phase motor can also be formed through two-phase synchronous working, which depends on a requirement of an application occasion to output quality. An effective foundation support is provided for development of switch angle control, a speed regulation theory, a driving circuit, output torque optimization and the like.

Description

technical field [0001] The present disclosure relates to the field of medical equipment and the field of navigation, in particular to a method and system for controlling a phase current drive switch of a doubly salient permanent magnet motor. Background technique [0002] Double Salient Permanent Magnet Motor (DSPM) was proposed in the 1990s [1]. The characteristics of simple and firm structure, high efficiency and energy density make DSPM easy to obtain application advantages in industry. Scholars from various countries have conducted extensive research on it. A variety of double salient pole permanent magnet motors have been proposed, which has effectively promoted the further development of DSPM motors; it mainly includes two aspects: the research on the motor body and the switch drive control circuit. Literature [2] introduces an 8 / 6 pole structure Doubly salient permanent magnet motor, literature [3-5] has conducted extensive research on it, literature [6] introduced th...

Claims

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Application Information

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IPC IPC(8): H02P6/28H02P6/182
CPCH02P6/28H02P6/182
Inventor 周智庆叶树林田英
Owner FOSHAN UNIVERSITY
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