Position Sensorless Control Method by Using Redefined Extended Electromotive Force for All-Speed-Range Drive of IPMSM and its Evaluation on Electric Vehicle

This paper presents evaluation of position sen- sorless control method by redefined Extended Electromotive Force (EEMF
_ω+h
) for All-speed-range on Electric Vehicle(EV). Pposition sensorless control is one of the significant research concern for IPMSM in terms of lowering cost, saving installation space and improvement of reliability. A previous research that redefined EEMF for all-speed-range drive and proposed a method to estimate (EEMF
_ω+h
) excited by signal injection and speed to realize all speed estimation has been conducted. In order to expand application examples, an EV is remodeled and implemented this method, and finally this method is evaluated in various running experiments in this paper.