计及不确定因素影响的交直流系统可用输电能力评估

Evaluation of Available Transmission Capacity for Hybrid AC/DC System Considering The Uncertain Factors

提出并建立了计及不确定因素影响的交直流混合系统可用输电能力优化计算模型,在综合考虑交直流混合电力系统运行的各种不确定因素基础上,量化分析各种不确定因素对系统运行可靠性的影响,采用蒙特卡罗方法对交流和直流系统的不确定性因素进行抽样,借助于内点法对可用输电能力优化模型进行求解。以IEEE-30节点系统和扩展的IEEE-30节点交直流混合系统为例对本文所提方法进行仿真计算,算例分析表明该方法的合理性和有效性。

This paper proposes and establishes the optimal calculation model of available transfer capability for AC/DC hybrid system considering uncertainties. This paper proposes and establishes the optimal calculation model of available transfer capability for AC/DC hybrid system considering uncertainties. Based on uncertain factors for AC/DC hybrid power system, quantitative analysis of uncertain factors on the system reliability, Monte Carlo method is used for sampling the uncertainties of AC and DC system, with using Interior point method to solve the optimization model of available transfer capability. A case study of IEEE-30 bus system and extended IEEE-30 bus AC/DC hybrid power system demonstrates the rationality and validity of strategies pro-posed in this paper.