电力系统自动化2017，Vol.41Issue(4)：41-47,7.DOI:10.7500/AEPS20160527008
风电爬坡事件对系统运行充裕性的影响评估
Assessing Impact of Wind Power Ramp Events on Operation Adequacy of Power Systems
摘要
Abstract
Due to the characteristics of large volatility and strong uncertainty,wind power ramp events (WPREs) are likely to cause the active power imbalances of power systems and even load loss accidents.Based on the analysis on characteristics and prediction status of WPREs,a WPREs model is proposed to establish the quantitative relationship between charactering quantities and wind power curves.The uncertainties of WPREs and load forecasting are simultaneously considered,and the scenario reduction method is used to generate the typical scenarios set of net load during WPREs.With the derivation of mathematical calculating method of buffered load loss probability based on scenario reduction,an indicator system is established,by which the system status can be categorized as being adequacy,load loss and marginal,and the corresponding probability of each status and severity of load loss can be calculated respectively.The assessment results of typical events based on the Gansu power grid verify the effectiveness and rationality of the proposed assessment method and indicator system.The roles of ramp rate of conventional units and proportion of reserve capacity in preventing the adverse effects of WPRE are further analyzed.关键词
风电爬坡事件/运行充裕性/影响评估/场景削减Key words
wind power ramp events/operation adequacy/impact assessment/scenario reduction引用本文复制引用
马欢,李常刚,刘玉田..风电爬坡事件对系统运行充裕性的影响评估[J].电力系统自动化,2017,41(4):41-47,7.基金项目
国家重点基础研究发展计划(973计划)资助项目(2012CB215101).This work is supported by National Basic Research Program of China (973 Program) (No.2012CB215101). （973计划）
