Researches in a High Frequency SplitZerovector PWM Inverter IM Drive System for Agricultural Pump or Fan

To reduce the power consuption, an advanced method of regulating speed for agricultural pump and wind machine was proposed. This method was based on the splitzerovector PWM inverter that was used in the testing system. By means of digital simulation and performance experiments using a 220 kW threephase squirral cage induction motor installed on a 192 kW fan, the availability and economy of this system were verified.