关键词: 永磁同步电机, 调速范围, 绕组切换

Abstract:

To extend speed range of PMSM, the method of changing winding turns was used on PMSM.A novel wingding changeover technique could change winding turns and extend the speed range. The proposed method was modeled under the environment and a platform was built to verify the theory. The experiments proved that the winding changeover technique can extend the speed range of PMSM without great changes in the control system,and it has practical value.

Key words: permanent magnet synchronous motor (PMSM), speed range, winding changeover