Robust Sensorless Control of Interior Permanent Magnet Synchronous Motor Using Deadbeat Extended Electromotive Force Observer

This paper proposes a novel and robust method of sensorless speed control using deadbeat observer for an interior permanent magnet synchronous motor (IPMSM). The proposed uses to estimate the extended electromotive force (EEMF) in rotational coordinate system. estimated EEMF is used IPMSM velocity estimation algorithm. (DEEMFO) shows greater robustness compared reconstructor, which estimates by simply recalculating voltage equation. Unlike DEEMFO has feedback component, so it can compensate errors due uncertainty parameters parameter fluctuations that may occur during use. By simulating experimenting with speed, load torque, fluctuations, proved be more precise than reconstructor. simulation performed MATLAB/Simulink, experiments were carried out DSP TMS320F28335 motor-generator set (M-G Set). experiment results show reliability precision method.