DC input current ripple reduction in SRM drive for high volumetric power density applications
AssigneeThe Universitv of Akron
InventorYilmaz Sozer
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Abstract
A control system for a switched reluctance machine includes a capacitor and an inverter connected to the capacitor, wherein the inverter generates current signals and a ripple current returned to the capacitor. A switched reluctance machine (SRM) receives the current signals and generates a position signal. A controller receives the ripple current, current signal values of the current signals, and the position signal and generates desired reference current waveforms received by the inverter to adjust the current signals received by the SRM.
Claims12
A control system for a switched reluctance machine, comprising:
- a capacitor;
- an inverter connected to said capacitor and generating current signals and a ripple current returned to said capacitor;
- a switched reluctance machine (SRM) receiving said current signals and generating a position signal;
- and
- a controller receiving said ripple current, current signal values of said current signals, and said position signal, and generating desired reference current waveforms received by said inverter to adjust said current signals received by said SRM.
A method for reducing DC input current ripple, comprising:
- connecting an inverter to a capacitor and generating current signals;
- receiving said current signals in a switched reluctance machine (SRM) which generates a ripple current received by said capacitor and a position signal;
- receiving said ripple current, current signal values of said current signals and said position signal in a controller which generates desired reference current waveforms;
- and
- receiving said desired reference current waveforms in said inverter to adjust said current signals in said SRM and reduce said ripple current.
Dependencies are inferred from the claim text.