Patent ID: 6756702
Filing Date: 2004-06-29
Classification: H02J,H02M

Abstract:
An electrical power system comprising:an electric power source providing AC power comprising an AC voltage and an AC resonant current to a load; a wideband voltage controller providing a wideband control signal vector to said electric power source; a fundamental component removal module having an interface to said AC power and receiving a fundamental component Park vector of said AC voltage, said fundamental component removal module providing a resonant frequency content in Park vector format of a resonant frequency content of said AC resonant current from said interface; a narrow band voltage regulator receiving a resonant component Park vector of said AC resonant current and receiving said resonant frequency content in Park vector format from said fundamental component removal module, said narrow band voltage regulator using said resonant component Park vector of said AC resonant current and said resonant frequency content in Park vector format to provide a narrow band output vector signal; and a transport lag compensating circuit that rotates said narrow band output vector signal by a transport lag compensation angle to provide a compensated control signal vector to said electric power source, said transport lag compensating circuit using said wideband control signal vector and said compensated control signal vector to regulate said AC power and attenuate said resonant frequency content in regulating said AC power.