电力系统保护与控制2011,Vol.39Issue(8):143-154,12.
电力系统短期可靠性评估综述
An overview of the short-term reliability evaluation of power system
摘要
Abstract
Short-term reliability evaluation is an effective tool for monitoring, measuring and forecasting short-term risks of power systems. Electricity market-oriented reform, large-scale wind energy conversion system (WECS) switch-in and changes of extreme weather heavily influence the power system reliability level. A comprehensive research on short-term reliability assessment is conducted, including short-term reliability component models, evaluation frame and indices. Short-term power transmission line model, short-term generator model and net load model are discussed in detail. The influence of weather conditions, fuzzy characteristic and transient stability are taken into account in the line model. The character of three types of reliability evaluations and analysis process of short-term reliability evaluation are investigated, and security analysis, prevention of cascading events and designing of special protection schemes are also considered. Indices of short term reliability evaluation are summarized in several perspectives, such as states, impacts and so on. Moreover, several important aspects which need to be further studied and direction in short-time reliability assessment are proposed.关键词
短期可靠性评估/短期可靠性元件模型/电力市场/大规模风电接入/极端天气Key words
short-term reliability evaluation/ short-term reliability component models/ electricity market/ large-scale WECS switch-in/ extreme weather分类
信息技术与安全科学引用本文复制引用
孙羽,王秀丽,王建学,谢绍宇..电力系统短期可靠性评估综述[J].电力系统保护与控制,2011,39(8):143-154,12.基金项目
国家自然科学基金项目(50777052,50807043) (50777052,50807043)