PMSM model reference adaptive system control method based on power balance model

• Main Authors: YANG HUIFAN, WANG YUNCHONG, CHOI AH-JI, SHEN JIANXIN, SUN JIYE, HUANG XIAOYAN
• Format: Patent
• Language: Chinese; English
• Published: 28.02.2023
• 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 discloses a PMSM model reference adaptive system control method based on a power balance model. Active power and reactive power are obtained in a d-q rotating coordinate system through current, a power balance model is constructed through constant amplitude transformation according to the obtained active power and reactive power, an adaptive law is designed and established according to the power balance model, the speed of the permanent magnet synchronous motor is obtained through the adaptive law, and a position angle is further obtained through the speed. And the feedback position and speed information is input into double closed loops to carry out speed and current closed-loop control. Through the MRAS based on the power balance model, the calculation amount is reduced, the dependence on motor parameters is reduced, the dynamic performance is good, and the robustness of the system is improved. 本发明公开了一种基于功率平衡模型的PMSM模型参考自适应系统控制方法。通过电流在d-q旋转坐标系中得到有功功率和无功功率，根据得到的有功功率和无功功率通过恒幅值变换构建功率平衡模型，根据功率平衡模型设