Method and system for regulating instantaneous electromagnetic torque and storage medium for implementing the method
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United States of America Patent
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Aug 22, 2006
Grant Date -
Jan 6, 2005
app pub date -
May 28, 2004
filing date -
Jun 2, 2003
priority date (Note) -
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Abstract
A method is described of regulating the instantaneous electromagnetic torque of a polyphase rotating electrical machine equipped with stator and/or rotor windings supplied by a voltage and a current generated by an inverter formed of switches whose switching is controllable. The method comprises a step of commanding the switching of the switches of the inverter using the fundamental frequency of the voltage generated by the inverter and a form of synchronous pulse width modulation configured as a function of an input set point, and a step of calculating the input set point from an instantaneous torque set point at each regulation time. The method further comprises a step of determining the time interval between two successive regulation times so that the time interval corresponds to an integer multiple of the period of oscillation of the instantaneous torque of the machine.
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