复杂电网跨区域通道最大输电能力研究

Research on Total Transmission Capacity of Inter-regional Channel of Complex Electrical Network

研究复杂电网跨区域通道的最大输电能力,电力系统中不确定性以及不可预测性因素是输电系统最大输电能力计算中的难点。在常规潮流计算的基础上,建立最大输电能力计算模型,量化分析变压器、输电线路以及用电负荷等构件的不确定状态对输电网路的影响,利用蒙特卡洛模拟法对这些不确定因素进行抽样分析,并对其所构建的模型进行求解,然后以标准IEEE-39节点系统为例,运用所提方法与灵敏度分析法分别进行计算求解。通过对比与分析求解结果,体现该方法的合理性、有效性以及优化性。

This paper mainly studies the maximum transmission capacity of cross regional channel of complex electrical network.On the basis of conventional power flow calculation,the calculation model ofthe maximum transmission capacity is established,and the influence of uncertain state of transformer,transmission line and electric load on the transmission network is analyzed quantitatively.Monte Carlo simulation method is used to sample and analyze these uncertain factors,and then the model is constructed to further study.In this paper,the IEEE-39 node system is used as an example to simulate and calculate the proposed method.The sensitivity analysis method is also used to solve this problem.The rationality and effectiveness of the method are demonstrated by comparing the two methods and results.