Jiangsu Electric Power Research Institute Co., Ltd.

State Grid Jiangsu Electric Power Co., Ltd. Research Institute

State Grid Corporation of China

State Grid Jiangsu Electric Power Company

Xiaolong Xiao

Jian Liu

Wei Su

Jinggang Yang

Shu Chen

Yubo Yuan

Xiaodong Yuan

Lei Gao

Mingming Shi

Tiankui Sun

Shuyi Zhuang

Kun Yang

Peng Li

Qifeng Huang

Qun Li

Xin Fang

Jianhua Qin

Ruihuang Liu

Yunlong Jiang

Xinyao Si

Liguo Liu

Chenqing Wang

Jiahao Guo

Disclosed is an electrical topology of an integrated DC charging station and an operation control method. The electrical topology comprises a supply side DC bus, K discrete charging pile units and a mutual aid total DC bus; each charging pile unit comprises an input DC bus, a mutual aid sub-DC bus, an output DC bus, N isolation branches, a non-isolation DC/DC module and an output terminal, the input DC bus is connected to the supply side DC bus, and the mutual aid sub-DC bus of each charging pile unit is connected to the mutual aid total DC bus; the isolation branch comprises an output branch and a mutual aid branch; and when all the output branches of one charging pile unit are started and the output power cannot meet the required power, the mutual aid branches of other charging pile units are started to meet the required power.

Electrical topology of integrated dc charging station and operation control method thereof

Disclosed is a low-voltage DC power distribution fast switching device. The device includes a positive output terminal electrically connected to a positive pole of a load, and no less than two switching circuits connected in parallel with each other; the switching circuit includes a positive input terminal electrically connected to a positive pole of common negative power supplies, a supplementary diode cluster composed of no less than one diode connected in series, and a thyristor connected between the positive input terminal and the positive output terminal; the positive input terminal is electrically connected to an anode of the supplementary diode cluster and an anode of the thyristor, and the positive output terminal is electrically connected to a cathode of the complementary diode cluster and a cathode of the thyristor.

Low-voltage DC power distribution fast switching device

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Jiangsu, China

Xiaolong Xiao