国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

Balanced three-phase four-wire or five-wire distribution grids can host significant more photovoltaic generators (PV) and electric vihicles (EV). A large amount of EV and PV connected to low voltage distribution grids may aggravate three-phase imbalance, increase the network losses, overload the distribution transformers and deteriorate the voltages, threatening the safe and cost effective operation of distribution grids. The current load balancing methods are too expensive or can not fully balance the three-phase load. In this paper, two schemes that the DC sides of adjacent single phase PV inverterts and EV chargers are coonected to a common DC bus to transfer load from highly load phase to less loaded phase are proposed. Based on this two schemes, two modelsSofSco-scheduling PV inverters and EV chargers to minimize network losses with load balancing taken into account are formulated. The proposed method are compared with the uncoordinated charging scenarios and the classic method which aim at minimizing the three-phase load variance. The proposed optimization is evaluated using an actual 213-bus case as the test system. Results are promising with the proposed method having good convergence under time-ef?cient calculations while providing optimization of power losses and load balance, lower load variance, and improvement of voltage pro?les versus the uncoordinated scenarios and classic method.