Multi-step integration models for risk-limiting dispatch of line congestion

被引：0

作者：

Zhou, Renjun ^{[1
]}

Chen, Ruixian ^{[1
]}

Tong, Xiaojiao ^{[1
]}

Li, Xianmei ^{[1
]}

Min, Xiongbang ^{[1
]}

Liu, Zhiyong ^{[1
]}

Zhang, Jie ^{[1
]}

机构：

[1] Hunan Province Key Laboratory of Smart Grids Operation and Control (Changsha University of Science and Technology), Changsha, 410004, Hunan Province

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2015年 / 35卷 / 19期

基金：

中国国家自然科学基金;

关键词：

Conditional value at risk (CVaR); Day ahead dispatch; Line congestion; Multi-step integration model; Random variable; Risk-limiting dispatch;

D O I：

10.13334/j.0258-8013.pcsee.2015.19.010

中图分类号：

学科分类号：

摘要：

Multi-step integration models for risk-limiting dispatch of line congestion in power system were firstly built in the paper based on the risk-limiting dispatch frame of grid smart operation proposed by international academic. The multi-step integration dispatch models consist of three steps integration day ahead dispatch model, two steps integration hour ahead dispatch model and emergency dispatch model. Estimated random information of the hour ahead and emergency state is included in the day ahead dispatch model, which forms the three steps integration day ahead dispatch one, etc. Wind power is treated as main random information in the paper and as random variable in the model. The line security constraints are transformed into line congestion risk-limiting constraints by means of the conditional value at risk (CVaR). Then it is named the line congestion risk-limiting dispatch. The simulation results show that the operating total cost of multi-step integration dispatch models is lower than traditional three steps dispatch's under both of advisable limit value for line congestion CVaR and the confidence level. The higher the confidence level, or the tighter the limit for line congestion CVaR is, the higher the operating cost. The novel multi-step integration dispatch model for line congestion risk-limiting is effective to solve the risk-limiting dispatch in the smart operation of power system. © 2015 Chinese Society for Electrical Engineering.

引用

页码：4930 / 4936

页数：6

共 21 条

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