Abstract：The traditional total power supply capacity model does not take into account the existing load change law of the power grid, and the calculation results are more ideal. Although the concept of residue supply capability proposed solves this problem, but it does not consider the impact of the high-voltage distribution network on the load growth. Therefore, this paper proposes a hierarchical calculation model of the residue supply capability of the high-voltage distribution network. Firstly, the normal operation mode and post fault operation mode of high-voltage distribution network are summarized and treated equivalently. The concept of independent power supply area is defined. Then, ased on the N-1 safety principle, the calculation model of residue supply capability is established and used to evaluate the residue supply capability of high-voltage distribution network under the current grid structure and load level. Finally, the effectiveness and practicability of the method proposed in this paper are verified by the actual grid calculation example.
李振生, 孙佳龙, 杜剑行, 王丹, 王继飞. 高压配电网剩余供电能力计算及应用[J]. 电气技术, 2021, 22(7): 78-82.
LI Zhensheng, SUN Jialong, DU Jianxing, WANG Dan, WANG Jifei. Calculation method of residue supply capability for high-voltage distribution system and its application. Electrical Engineering, 2021, 22(7): 78-82.
2021, Vol. 22 
