Design method of five-phase permanent magnet fault-tolerant motor with high reluctance torque and high salient pole rate

A technology of permanent magnet fault tolerance and design method, which is applied in the direction of control of generators, motor generator control, magnetic circuit rotating parts, etc., and can solve the problems of low reluctance torque and saliency ratio

Active Publication Date: 2020-09-11
JIANGSU UNIV
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Problems solved by technology

On the other hand, aiming at the shortcomings of the existing permanent magnet fault-tolerant motors with low reluctance torque and saliency ratio, the present invention firstly proposes a method for selecting high-performance permanent magnet fault-tolerant motor slot pole fits, because the optimized reluctance torque and saliency ratio reflect a relatively contradictory trend to a certain extent, so in order to optimize the two parameters at the same time, so that the motor can achieve ideal performance, the present invention adopts a multi-objective optimization method to achieve high reluctance torque and high convexity Pole Rate Permanent Magnet Fault Tolerant Motor Requirements

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  • Design method of five-phase permanent magnet fault-tolerant motor with high reluctance torque and high salient pole rate
  • Design method of five-phase permanent magnet fault-tolerant motor with high reluctance torque and high salient pole rate
  • Design method of five-phase permanent magnet fault-tolerant motor with high reluctance torque and high salient pole rate

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Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0061] According to the relationship between the fault-tolerant performance of the five-phase permanent magnet motor and the self-inductance and mutual inductance of the motor, the present invention determines the basic slot and pole coordination of the permanent magnet fault-tolerant motor; considering the use of a stator with fractional slot concentrated windings, according to the motor winding factor and torque performance According to the relationship between slots and poles with high winding factor, the slot and pole coordination with high winding factor is selected; considering the leakage inductance coefficient and rotor loss, the slot and pole coordination with low leakage inductance coefficient and low rotor loss is determined; according to the principle of cogging torq...

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Abstract

The invention discloses a design method of a five-phase permanent magnet fault-tolerant motor with high reluctance torque and high salient pole rate, and belongs to the technical field of motor manufacturing. The invention provides a novel method for selecting five-phase permanent magnet fault-tolerant motor slot pole cooperation. On the basis of determining the motor slot pole, the structure of the motor is designed, and through a multi-objective optimization method, the purposes of high reluctance torque and high salient pole rate are finally achieved. When the slot pole cooperation of the motor is selected, a slot pole matching selection method is provided by constructing a relationship between a mutual coupling coefficient and motor fault tolerance performance. According to the method,the slot poles with high fault-tolerant performance are selected for matching, and on the basis, factors such as a winding factor, a leakage inductance coefficient, rotor loss and cogging torque of the motor are comprehensively considered, so that the proposed motor design method can ensure excellent fault-tolerant performance while realizing high reluctance torque and high salient pole rate.

Description

technical field [0001] The invention relates to the design of a five-phase permanent-magnet fault-tolerant motor, in particular to a method for selecting the slot pole coordination of the five-phase fault-tolerant motor and improving the reluctance torque and salient pole ratio, and belongs to the technical field of motor manufacturing. Background technique [0002] Nowadays, permanent magnet synchronous motors have been widely used, and they play a very important role in many fields from automobiles to aerospace. This is mainly due to several salient features of permanent magnet synchronous motors, including high torque density, high efficiency, and small weight and volume. The permanent magnet synchronous motor uses a magnetic material with a high magnetic energy product to replace the traditional excitation winding, which not only eliminates the negative impact of the excitation winding, but also simplifies the mechanical structure of the motor, which improves the reliabi...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K1/24H02P21/00
CPCH02K1/165H02K1/246H02K2213/03H02P21/0089
Inventor 颜玉洁陈前刘国海赵文祥徐高红
Owner JIANGSU UNIV
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