电网风电接纳能力建模及影响因素分析  

Research on the Model and Influences of Power Grid's Ability of Admitting Wind Power

作　　者：丁明[1] 刘新宇[1] 朱乾龙[1] 石文辉[2] 

机构地区：[1]合肥工业大学安徽省新能源利用与节能重点实验室,合肥230009 [2]中国电力科学研究院,北京100192

出　　处：《电气工程学报》2016年第7期1-8,17,共9页Journal of Electrical Engineering

基　　金：国家电网公司科技项目(71-14-036)

摘　　要：风电出力的特殊性和电网调峰能力的不足导致了弃风问题的出现,合理调度和改善电源结构是解决风电接纳问题的有效途径。本文建立了包含传统水火电机组、风电、储能系统(ESS)以及外送通道在内的机组组合模型,将火电机组发电成本和弃风惩罚费用纳入目标函数,综合考虑了各种运行约束条件,得到兼顾发电成本和风电接纳的优化方案。以某省级电网为例,详细讨论了解耦供热机组"以热定电"运行方式、储能、外送通道和灵活性机组对风电年度上网电量的影响,结果表明,解耦供热机组"以热定电"运行方式、配置储能、增加外送和灵活机组均能提高电网对风电的接纳能力。The specificity of wind power and lack of peak regulation led to the problem of abandoned wind, Reasonable dispatch and ameliorate the power structure is an effective way to solve the problem of wind power＇s acceptance. The paper established the unit commitment contains traditional thermalpower and hydropower power, wind power, energy storage system （ESS）, and delivery channels, thermal power generation cost and abandoned wind penalty costs are included in the objective function, considering the variety of operationalconstraints, to get the optimization taking into account the cost of power generation and acceptance of wind power. Based on an actual provincial power grid, discussed influences of wind power＇s the annual electricity with decoupling the constraint of ＂power determined by heat＂ , energy storage system, delivery channels and flexible generating units, the results show that decoupling the constraint of ＂power determined by heat＂ , energy storage system, delivery channels and flexible generating units can all improve power grid＇ s ability of admitting wind power.

关 键 词：风电接纳能力 年度计划 以热定电 储能 外送通道 灵活性机组 

分 类 号：TM73[电气工程—电力系统及自动化]