摘要
Power systems are evolving to the networks with proliferated penetration of renewable energy resources to leverage their environmental and economic advantages However,due to the stochastic nature of renewables,the management of the rapidly increasing uncertainty and variability in power system planning and operation is of crucial significance.This paper represents a comprehensive overview of power system flexibility as an effective way to maintain the power balance at every moment.Definitions of power system flexibility from various aspects are explained to reach the reliable and economic planning and operation of the power system.The effects of the high penetration of variable energy resources on power systems and the evolution of flexibility in response to renewables are studied.A variety of resources during the flexibility evolutionary transition are introduced and discussed.As an influential flexibility solution in current power systems integrated with renewable resources,market design improvement is widely reviewed in this paper,and required modifications in market design mechanisms are investigated pertaining to various time horizons.
Power systems are evolving to the networks with proliferated penetration of renewable energy resources to leverage their environmental and economic advantages However, due to the stochastic nature of renewables, the management of the rapidly increasing uncertainty and variability in power system planning and operation is of crucial significance. This paper represents a comprehensive overview of power system flexibility as an effective way to maintain the power balance at every moment. Definitions of power system flexibility from various aspects are explained to reach the reliable and economic planning and operation of the power system. The effects of the high penetration of variable energy resources on power systems and the evolution of flexibility in response to renewables are studied. A variety of resources during the flexibility evolutionary transition are introduced and discussed. As an influential flexibility solution in current power systems integrated with renewable resources, market design improvement is widely reviewed in this paper, and required modifications in market design mechanisms are investigated pertaining to various time horizons.
作者简介
Alireza AKRAMI is with the School of Electrical and Computer Engineering,University of Tehran,Tehran,Iran.He has received his B.Sc.degree in electrical engineering from Sharif University of Technology,Tehran,Iran,in 2014,and the M.Sc.degree in power system engineering from the University of Tehran,Tehran,Iran,in 2018.His areas of interest are smart grid,operation of distribution networks,and optimization in power systems,alireza.akrami@ut.ac.ir;Meysam DOOSTIZADEH received the Ph.D.degree in electrical engineering from University of Tehran,Iran in 2016.He is currently an Assistant Professor with the Faculty of Engineering,Lorestan University,Lorestan,Iran.His research interests include electricity markets,smart grid technologies,and integration of renewable energy into power system,doostizadeh.m@lu.ac.ir;Farrokh AMINIFAR is an associate professor with the School of Electrical and Computer Engineering,University of Tehran,Tehran,Iran.He has also been collaborating with the Robert W.Galvin Center for Electricity Innovation,Illinois Institute of Technology,Chicago,USA,since 2009.He is recipient of many national and international awards and presently serving IEEE Transaction of Sustainable Energy and IET Smart Grid journals as associated editor.His current research interests include smart grid technologies,wide-area measurement systems,and resilience analysis of cyber-physical power networks,faminifar@ut.ac.ir
