A lot of distributed photovoltaics are connected to the medium and low voltage power grid,which brings heavy overload of distribution transformers and Voltage over-limit problems.To solve this problem,Carry out comprehensive analysis and research on power quality of distributed photovoltaic,Set up a series of demonstration projects of AC/DC convergence,single multi-household inverter,Public/specialized transformer boosting,Single point/Multipoint grid connection,and supporting energy storage.With the Overall development of distributed photovoltaic in Si Qian Guan Zhuang village as a pilot project,carry out power quality management,and Simultane-ously supporting the construction of low-voltage energy storage,Which is used for realizing smooth power regulation of the power station.In order to solve the problem of frequent voltage exceeding the limit caused by Low voltage grid-connected distributed photovoltaic,proposed control strategies,developed regulation control procedures,completed the power quality regional autonomous pilot of integrated terminal in the distribution network,power transformer with OLTC,smart capacitor,and inverter,built a flexible control of distributed photovoltaic system and Regional autonomy of power quality demonstration project based on"whole village+photovoltaics+energy storage"strategy.
photovoltaicpower qualitymonitoringregional autonomyflexible control
维普
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