Abstract |
This paper proposes the phase delay compensation method of the analog filter used to enhance themeasuring performance for sensorless control based on high frequency signal injection. An inherentdelay effect caused by a band-pass-filter has a negative impact on the position estimation for a signalinjected sensorless control, and thus requires a proper compensation. In this paper, the delay effect isinvestigated theoretically, and its compensation method is proposed. Several verifications by thesimulations is presented. |