Invention Grant
US08279642B2 Apparatus for converting direct current to alternating current using an active filter to reduce double-frequency ripple power of bus waveform 有权
用于使用有源滤波器将直流电流转换成交流电流的装置,以减少总线波形的双频纹波功率

Apparatus for converting direct current to alternating current using an active filter to reduce double-frequency ripple power of bus waveform
Abstract:
An inverter for converting an input direct current (DC) waveform from a DC source to an output alternating current (AC) waveform for delivery to an AC grid includes an input converter, an output converter, and an active filter, each of which is electrically coupled to a bus. The bus may be a DC bus or an AC bus. The input converter is configured to convert the input DC waveform to a DC or AC bus waveform. The output converter is configured to convert the bus waveform to the output AC waveform at a grid frequency. The active filter is configured to reduce a double-frequency ripple power of the bus waveform by supplying power to and absorbing power from the power bus.
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