多端风电汇集电网输电线路的功率极限研究

Research on Transmission Power Limitation in Multiple-Converging Wind Power System

针对多端风电汇集区域电网,由于系统节点电压与多条输电线路潮流有关,仅依靠P—V曲线法不能求解多端风电汇集电网的线路功率极限问题,提出了1种基于K—V曲线的多端风电汇集电网稳态分析方法,利用支路功率的比值与系统节点电压的关系,求解输电线路的功率极限。

To the multiple-converging wind power system of regional power grid, the system node voltage associated with a plurality of transmission line power flow, the line power limit of P--V curve method can not solve the multiple-converging wind power system power limitation problems, put forward one kind of steady-state analysis method of multiple-converging wind power system based on K--V curve, by using the relationship between branch power ratio and system node voltage, solve the problem of power limitation for transmission line.