摘要
In the last two decades,the wind power generation has been rapidly and widely developed in many regions and countries for tackling the problems of environmental pollution and sustainability of energy supply.However,the high share of intermittent and fluctuating wind power production has also increased the burden of system operator for securing power system reliability during the operational phase.Moreover,the power system restructuring and deregulation have not only introduced the competition for reducing cost but also changed the strategy of reliability evaluation and management of power systems.The conventional long-term reliability evaluation techniques have been well developed,which have been more focused on planning and expansion rather than operation of power systems.This paper proposes a new technique for evaluating operational reliabilities of restructured power systems with high wind power penetration.The proposed technique is based on the combination of the reliability network equivalent and time-sequential simulation approaches.The operational reliability network equivalents are developed to represent reliability models of wind farms,conventional generation and reserve provides,fast reserve providers and transmission network in restructured power systems.A contingency management schema for real time operation considering its coupling with the dayahead market is proposed.The time-sequential Monte Carlo simulation is used to model the chronological characteristics of corresponding reliability network equivalents.Asimplified method is also developed in the simulation procedures for improving the computational efficiency.The proposed technique can be used to evaluate customers’reliabilities considering high penetration of wind power during the power system operation in the deregulated environment.
基金
This work was supported by Chinese National Natural Science Funds under Grant 51177078.
作者简介
Yi DING received the B.Eng.degree from Shanghai Jiaotong University,China,and the Ph.D.degree from Nanyang Technological University(NTU),Singapore,both in electrical engineering.He is a Professor in the College of Electrical Engineering,Zhejiang University(ZJU),China.Before he Joined in ZJU,he was an Associate Professor in the Department of Electrical Engineering,Technical University of Denmark(DTU),Denmark.He also held research and teaching positions in University of Alberta,Canada and NTU.He was a Consultant as Energy Economist for Asian Development Bank in 2010.He is editorial member of international journals of Electric Power System Research and Journal of Modern Power Systems and Clean Energy.He is also a guest editor for the special section of IEEE Trans.on Power Systems.Dr.Ding is member of IEC working groups for micro-grid standards.His research areas include power system planning and reliability evaluation,smart grid and complex system risk assessment.e-mail:yding@elektro.dtu.dk;Lin CHENG was born in 1973.He received the B.S.degree in electrical engineering from Tianjin University,Tianjin,China,in 1996,and the Ph.D.degree in electrical engineering from Tsinghua University,Beijing,China,in 2001.Currently,he is an Associate Professor with the State Key Laboratory of Power Systems,Department of Electrical Engineering,Tsinghua University.His research interests include the areas of power system reliability and planning,power system dynamics and control based on wide-area measurement systems(WAMS);Yonghong ZHANG reeived the Ph.D degree from Shanghai Jiaotong University,China in 2005.He had been a research fellow in the University of Alberta,Canada from 2007 to 2008.From 2009,he has been a professor in the Nanjing University of Information Science&Technology,China.His research areas include smart energy systems,artificial intelligence and information technology;Yusheng XUE received his Ph.D.degree in Electrical Engineering from the University of Liege(Belgium)in 1987.He became a Member of Chinese Academy of Engineering in 1995.He is now the Honorary President of State Grid Electric Power Research Institute(SGEPRI),State Grid Corporation of China.His research interests include nonlinear stability,control and power system automation。
