Induction motor performance identification method and system based on time domain response and medium

• Main Authors: WANG KANGWEI, ZHOU XIANGDONG, SONG BAO, YIN JIAYANG, ZHONG JINGLONG, TANG XIAOQI, LIU YANG, ZHAO KUN, LIN ZHIPENG, MOU XIBIAO
• Format: Patent
• Language: Chinese; English
• Published: 26.12.2023
• 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 an asynchronous motor electrical performance identification method and system based on time domain response, and a medium. The method comprises the following steps: constructing an equivalent circuit model of a to-be-tested induction motor; identifying electrical parameters of the induction motor to be detected with the equivalent circuit model by using the ramp voltage excitation signal and the step voltage excitation signal in sequence; setting current loop controller PI parameters of the induction motor to be tested according to the electrical parameters; therefore, the method does not depend on a current loop controller, the electrical parameters of the motor are identified by injecting the single-phase voltage excitation signal into the motor, so that only current response and time domain signals are used for electrical parameter estimation in the identification process, some complex operations such as Fourier transform are not needed, and engineering realization is easier on the