摘要
台风灾害下,需求响应能为电力系统提供灵活的负荷削减能力,考虑需求响应有利于提高电力系统抵御台风灾害的能力。为了响应电网的高弹性建设需求,提出考虑需求响应的多时间尺度优化调度模型。首先,在台风经停全时间尺度下,针对激励型需求响应的不确定性建立容量-成本模型和机组等效出力模型。其次,引入台风灾害下线路实时故障率,以支路过载严重度作为系统运行风险指标,综合考虑系统运行成本和需求响应成本构建日前调度模型和日内调度模型,达到系统安全性与经济性的统一。最后,通过IEEE30节点系统模拟台风经停区域及过程,对系统多时间尺度调度进行仿真,表明所提方法能够降低台风登陆时受影响区域电网的运行风险,辨识出电网中的薄弱环节。
In typhoon disasters,demand response can provide power system with flexible load shedding capacity,which is conducive to withstanding typhoon disaster.To respond to the high elastic power grid construction demand of power system,this paper proposes a multi-time scale optimal dispatch model considering demand response.Firstly,under the full time scale of typhoon stopover,cost-capacity model and unit equivalent output model were established for the uncertainty of incentive demand response.Secondly,we introduced the real-time line failure rate under typhoon disaster and took the line overload severity as the system operation risk index.We constructed day-ahead dispatch model and intra-day dispatch model by considering the system operation and demand response cost to achieve the unification of system security and economy.Finally,the IEEE30-node system was used to simulate the typhoon stopover region and process,including the multi-time scale dispatch of the system.The results show that the proposed method can reduce the operation risk of the power system in the affected region when the typhoon lands,and identify the weak links.
作者
杭海燕
杨力强
甘雯
孙毅
杨泓玥
李泽坤
HANG Haiyan;YANG Liqiang;GAN Wen;SUN Yi;YANG Hongyue;LI Zekun(Dispatching and Control Center,State Grid Huzhou Power Supply Company,Huzhou 313000,China;School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China)
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2021年第4期40-48,共9页
Journal of North China Electric Power University：Natural Science Edition
基金
国家电网科技项目(SGZJHU00DKJS2000318)。
关键词
台风灾害
需求响应
多时间尺度
优化调度
typhoon disasters
demand response
multi-time scale
optimal dispatch
