Method and system for regulating the instantaneous electromagnetic torque, and memory support for carrying out the method

摘要

The process involves pulse width modulating a frequency of voltage generated by an inverter to control switching of the inverter. Time interval between two successive instants of torque adjustment is determined to set a constant instantaneous torque. The interval corresponds to all multiples of oscillation period of the torque. The oscillation is caused by second or higher order harmonics of voltage. Independent claims are also included for the following: (1) an information recording medium with instructions for executing a process for adjusting instantaneous electromagnetic torque of a polyphase rotating electrical machine (2) a system for adjusting instantaneous electromagnetic torque of a polyphase rotating electrical machine.