标题：Application of Type 3 Wind Turbines for System Restoration

作者：Sun, Li; Peng, Chaoyi; Hu,Jiabing; Hou, Yunhe

摘要：Back-to-backvoltage-sourceconvertersenableType3 wind turbines (WTs) to operate with zero-power transfer, and this allowsthemtorestorethesystembothinblack-startingandstandaloneloadedstages.Therefore,thispaperfirstidentifiestheprerequisitesforType3WTstoactasvoltage-sourceinterfacesinthecase ofbulksystemoutageandrevealstheirinherentdeficiencyforsystemrestorationfromthevoltage/frequencyandoutputpower(P–f andQ–V)relationships.Theseanalysesprovidethebasicguidance forsubsequentcontrolupdating.Afterwards,toallowType3WTs to provide black-starting capacity, a concomitant control strategy and a restoration sequence are proposed. The uncovered P–f relationship is reinforced by self-maintained frequency control for the subsequentstand-aloneloadedstage.Themechanismoffrequency matching among multiple WTs is also discussed. Furthermore, a mathematical analysis for the impacts of controller parameters on the frequency characteristics of a Type 3 WTs-based stand-alone system is developed, thereby providing the guidance for control design. Eventually, a specific islanded system, merely consisting of Type 3 WTs and some passive local loads, is constructed to verify thefeasibilityofType3WTsforsystemrestorationandtovalidate the analytical results.

发表于：IEEE TRANSACTIONS ON POWER SYSTEMS

发表时间：MAY, 2018