An Evaluation Method of Power Supply Capacity Based on Improved Benders Decomposition Method
A technology of power supply capacity and decomposition method, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of increasing calculation time, not considering the large scale of power system solution, and deviating from the feedback direction.
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[0080] This embodiment provides a power supply capability evaluation method based on the improved benders decomposition method, the flow chart is as follows figure 1 shown, including the following steps:
[0081] Step 1), establish a power supply capacity model considering N-1 static security constraints, the model takes the maximum power supply capacity as the optimization goal, and the constraints include load, generator capacity, line thermal stability in normal operation mode and N-1 operation mode limits, node voltages, and generator ramp constraints, and simplify the model to vector form;
[0082] Step 2), input the grid data, initialize the variable data, set the slack matrix, the core accident set and the cut set constraints of the main problem to zero, and a grid component N-1 accident is regarded as a sub-problem;
[0083] Step 3), in the small loop, based on the benders decomposition method, the above model is decomposed into a main problem under the normal operat...
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