AC motor drive system based on a custom designed strontium ferrite motor

Exploit the flux concentration configuration is a good alternative for designing a relatively low cost synchronous motor based on ferrite magnets. This paper discusses the design of an ac motor drive system based on a permanent magnet motor in which both the use of low cost ferrites and minimization of cogging torque have been adopted as design criteria. The dynamic modeling as well as the parameter identification of the motor have been performed. Simulation and experimental results are presented to demonstrate the correctness of the methodology and the feasibility of proposed motor drive solution and its related feedback control laws.