Improved Switching Patterns of Inverters for ...

Power losses of electric drives depend to a large extent on the switching frequency, currents, and supply voltage of the power semiconductor inverter. As these three parameters affect the motor torque and speed, they must be considered in the synthesis of the algorithms provided in the inverter adjustment. This paper presents the simulation and experimental study on a space vector modulation (SVM) inverter that supplies the alternating current (ac) electric drive with low switching losses. A new toolkit to explore different modulation techniques is described. Some methods of the load-dependent control over ac electric drive inverters are examined through simulation and experimentation. The benefits of the new discontinuous SVM algorithms upon the well-known control techniques are discussed.