Patent ID: 8072190

Claim:
A method of controlling a permanent magnet AC generator ( 10 ) in a power supply system, wherein the generator is provided with stator windings and permanent magnets in a rotor, and wherein the generator is connected to a drive unit ( 50 ), the method comprising the steps of: controlling an output voltage of the AC generator ( 10 ) with a semiconductor converter ( 30 ) having an AC output connected to an output of the AC generator ( 10 ) and a DC link capacitor (C DC ) for controlling an output voltage of the AC generator ( 10 ), and filtering an output voltage of the converter with filter means ( 20 ) so that an output voltage of the converter ( 30 ) fed to the AC generator ( 20 ) is filtered, wherein a converter filter choke coupling is integrated in windings (LG 1 , LG 2 , LG 3 ) of the generator with taps (TAP 1 ) between the windings, wherein the filter means ( 20 ) is totally integrated inside the generator, and none of the filter means ( 20 ) is disposed external of the generator.