Electrical System And Control Method

摘要

A power generation system (10) comprises at least two electrical systems (18, 80) connected in at an electrical connection point (16). Each electrical system comprises a power conversion system (20) comprising a converter (32) including a plurality of switches (34) for converting direct current power into alternating current power. The power generation system comprises a control system (24, 25) including at least two pulse width modulation (PWM) modulators (36), each PWM modulator for obtaining a fundamental waveform and a carrier signal, using the fundamental and carrier signals to generate a PWM pattern, and for providing the PWM pattern to a respective converter for driving the switches of the respective converter. The control system is configured to interleave carrier signals, fundamental waveforms, or a combination of carrier and fundamental waveforms of the at least two electrical systems to generate interleaved PWM patterns respectively for the at least two converters.