A Direct Torque Control of Interior Permanent Magnet Synchronous Motor for an Electric Vehicle Design Analysis Total Harmonic Distortion of Stator Current
Comparative studies on several direct torque control (DTC) strategies of interior permanent magnet synchronous motor (IPMSM) for electric vehicles (EVs) are discussed in details, namely basic DTC, DTC combined with space vector modulation (DTC SVM) and dead beat DTC (DB DTC) These DTC strategies are reviewed; meanwhile dynamics and steadystate performance are analyzed and compared. Simulations of a 20kW IPMSM for EVs are carried out for comparison studies including: ripple of torque and stator flux, sensitivity to machine's parameter, computational complexity, and total