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TRANSFORMER-LESS STATIC SYNCHRONOUS SERIES COMPENSATOR AND METHOD THEREFOR
TRANSFORMER-LESS STATIC SYNCHRONOUS SERIES COMPENSATOR AND METHOD THEREFOR
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机译:无需变压器的静态同步串联补偿器及其方法
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摘要
A transformer-less static synchronous series compensator for an AC electrical power transmission system having a transmission line carrying an AC current and a method therefor. The transformer-less static synchronous series compensator includes a multiple of voltage source converters (100a, 100b... 100n), each of which having DC input and AC output and being configured to generate an alternating voltage with controllable magnitude and controllable phase angle across the AC output; wherein the AC outputs of the multiple of voltage source converters are configured for parallel-injection of the generated alternating voltages into a phase of the transmission line (A, B, C). The AC transmission line phase current can be distributed to the multiple of inputting the alternating voltages in parallel into the phase of the AC transmission line, and thus the current handling capability requirement for power semiconductor switches used in each of the voltage source converter can be significantly reduced.
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