Regional-level power grid operation regulation method based on 0-1 nonlinear integer programming
An integer programming and power grid operation technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as low reliability and low efficiency, and achieve the effect of improving efficiency and computing efficiency.
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[0023] Such as Figure 1~2 As shown, the present invention is based on the 0-1 nonlinear integer programming regional power grid operation control method, the specific steps are as follows: S1: the number N1 of 220kV substations, the number N2 of 110kV substations, the number N3 of 110kV virtual substations, then there are N1+N2+N3=N, Kij represents the connection branch between nodes i and j, 0 means no connection, 1 means connection, Kii=0 (i=1, 2, . . . , N). The N×N adjacency matrix A can be obtained from the power grid information, and the adjacency matrix A is a symmetrical matrix, and the power supply path of the substation can be searched by using this matrix; S2: Input the number N1 of 220kV substations, and the number N2 of 110kV substations, and use the depth-first search algorithm Search the branches of the 110kV substation node, if the search node is not a 220kV substation node, mark the branch and continue searching until the 220kV substation node is found; S3: s...
Embodiment 2
[0041] On the basis of this embodiment, a specific power grid power supply line is selected, and the improved ant colony algorithm is used to screen the mode control strategies of a city's power grid under the conditions of line maintenance and 220kV main transformer overload, in order to illustrate this The practical significance of the algorithm. The power grid information of a certain city comes from the PSASP comprehensive program.
[0042] If a given line is overhauled, all power paths to that line are unavailable. There are mainly two 110kV substations, Shengdeng and Fuqing Road, involved in a given line. When a given line is overhauled, there are two power supply paths for Shengdeng:
[0043] (1) Rongdong --> Rongfu Lantern T --> Shengdeng;
[0044] (2) Dongjiao --> Suburb Fudeng T --> Fuqing Road --> Rongfu Deng T --> Shengdeng.
[0045] There are only two power supply paths on Fuqing Road:
[0046] (1) Eastern Suburb ——> Suburb Fudeng T ——> Fuqing Road;
[0047] ...
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