关键词: 无刷双馈电机, 等效电路, 参数, 实验法, T-n曲线

Abstract:

A method to determine the parameters of the brushless doubly fed machine equivalent circuit based on the experimental measurement was presented. According to the different equivalent circuit under different operating conditions, the loop voltage equation is written. Through the derivation, the solution of the parameters in the equivalent circuit was obtained. Taking a 15 kW, squirrel cage rotor brushless doubly fed machine prototype as an example, the parameter values of the brushless doubly fed machine converted to the equivalent circuit of the power winding side were obtained. The correctness of the method is verified by comparing the T-n curve obtained by simulation and the T-n curve segment of the stable running area obtained experimentally.

Key words: brushless doubly fed machine (BDFM), equivalent circuits, parameter, experimental method, T-n curve