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The paper discusses the operating principles and control characteristics of an interline voltage controller (IVOLCON) for voltage regulation in parallel distribution feeders. The IVOLCON consists of two shunt voltage source converters (VSCs) connected to different feeders through a common DC link. The main aim of the IVOLCON is to control the two PCC (point of common coupling) bus voltages of the...
This paper discusses a frequency estimation strategy that, when used in conjunction with dynamic voltage restorer (DVR), can hold the magnitude of any distribution bus voltage constant as the supply frequency varies. First the impact of supply frequency variation on the performance of a DVR is illustrated. It has been shown that if a DC battery supplies the DVR, the battery ends up supplying the real...
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