Multi-parameter identification method for asymmetric permanent magnet synchronous reluctance motor

• Main Authors: LI PEISHUANG, ZENG CHENGBI, YAN JINGCHENG, MIAO HONG, ZHU QIHAO, QIU ZHONGRUI
• Format: Patent
• Language: Chinese; English
• Published: 08.07.2022
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention relates to the technical field of motor parameter identification, in particular to an asymmetric permanent magnet synchronous reluctance motor multi-parameter identification method, which comprises the following steps of: 1, establishing an asymmetric flux-gathering rotor type permanent magnet synchronous reluctance motor mathematical model under a dq synchronous rotating coordinate system; and 2, according to the mathematical model, distributing the fixed slow variable parameters in a time-sharing manner and identifying the fast variable parameters at the same time, and identifying the electrical parameters of the permanent magnet synchronous reluctance motor by using a variable forgetting factor recursive least square method. According to the method, the convergence speed and the convergence precision are improved, and the identification effect is good. 本发明涉及电机参数辨识技术领域，具体地说，涉及一种非对称永磁同步磁阻电机多参数辨识方法，其包括以下步骤：一、在dq同步旋转坐标系下，建立非对称聚磁链转子式永磁同步磁阻电机数学模型；二、根据数学模型，分时分布固定慢变参量的同时去辨识快变参量，利用可变遗忘因子递推最小二乘法，辨识永磁同步