Coordinated control method for low-voltage flexible distribution network power supply system
A technology of power supply system and coordinated control, applied in the field of flexible power transmission, which can solve problems such as fault expansion, distribution transformer overload, single main transformer overload, etc.
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[0049] A specific implementation of a coordinated control method for a low-voltage flexible distribution network power supply system according to the present invention will be described in detail below in conjunction with the accompanying drawings.
[0050] Based on the traditional distribution network power supply system of Xuzhou Xinghuwan Community, the transformation design is as follows.
[0051] 1. Design of bus tie switch
[0052] The four distribution transformers (distribution transformers) are defined as T1~T4, the high voltage side switches of the distribution transformers are respectively defined as S1~S4, and the low voltage side switches of the distribution transformers are defined as CB1~CB4; the 4 sections of 400V low voltage AC buses are connected through bus tie switches; Before the renovation design, the structure diagram of the power supply system of the power distribution room of Xinghuwan Community is as follows figure 2 shown.
[0053] When the load of...
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