信息间隙决策理论在电力系统中的应用

Application of Information Gap Decision Theory in Power System

信息间隙决策理论(IGDT)是一种以非概率性模型处理当前电力系统中因电价、出力、负荷等不确定性因素而导致电力系统呈现“奈特氏不确定性”的方法。该方法已应用于包含电力系统在内的多种需要处理不确定性的优化领域中。介绍了IGDT的基本理论、优化模型和决策偏好模型,从系统规划、系统运行、电力市场3方面对IGDT在电力系统中的应用进行综述。根据网络规模的大小将电力系统分为微网、配网和电网,对系统运行进行论述;根据市场参与者的角度分为发电商、零售商、大用户与运营商4类,对电力市场的相关工作进行比较。最后对IGDT在电力系统中的应用进行归纳与总结,以期IGDT能得到更为广泛地应用。

Information gap decision theory(IGDT)is a method using non-probabilistic model to deal with the“Knightian uncertainty”caused by factors such as electricity price,output and load in the current power system.This method has been applied to many optimization fields such as power system which needs to deal with uncertainty.The basic theory,optimization model and decision preference model of IGDT have been introduced in this paper.The application of IGDT in power system is summarized from three aspects:system planning,system operation and power market.According to the scale of the network,the power system has been divided into micro network,distribution network and power grid,and the operation of the system has been discussed.According to the perspective of market participants,the power system can be divided into four categories:generator,retailer,large user and operator,and the relevant work of the power market has been compared.Finally,the application of IGDT in power system is summarized in order to achieve the purpose that IGDT can be more widely used.