Transient analysis and experiment platform of winding changeover induction machine
WU Min1, CAI Zhuojian2, CHEN Duowen1, YANG Huan1, ZHAO Rongxiang1
(1.College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;
2.Hangzhou Sanshy Drive Technology Co., Ltd., Hangzhou 311305, China)

Abstract: Aiming at the structure difference between general induction machine and winding changeover induction machine, in order to reflect the transient process during winding changeover and provide theoretical basis for control system designing, a new modeling method was proposed. The two groups of winding of each phase were analyzed respectively, after which the flux and voltage equation were built to form a uniform state equation. The modeling result was simulated. An experiment platform was designed based on the modeling and the simulation results. The switch circuit parameters were properly chosen to achieve winding changeover and the voltage peak during changeover suppressing. The experiment result indicates that the experiment platform can achieve a smooth winding changeover process and the impulse is effectively suppressed, which verifies the effectiveness of the modeling method.

Key words: AC machines; winding changeover; transient analysis; experiment platform design