可再生能源消纳对深度调峰方式的影响  

Influence of Renewable Energy Consumption on Deep Peak Regulation Mode

作　　者：郁丹 翁华 何佳 万立宇 吴璐阳 辛洁晴[2] Yu Dan;Weng Hua;He Jia;Wan Liyu;Wu Luyang;Xin Jieqing(Zhejiang Huayun Electric Power Engineering Design Consulting Co.,Ltd.,Hangzhou Zhejiang 310006,China;Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]浙江华云电力工程设计咨询有限公司,浙江杭州310006 [2]上海交通大学,上海200240

出　　处：《电气自动化》2020年第4期17-20,共4页Electrical Automation

基　　金：国家自然科学基金资助项目(51777121);浙江华云电力工程设计咨询有限公司科技项目(HYSZ-10)资助。

摘　　要：随着可再生能源消纳量的升高和负荷峰谷差的加大,我国东部沿海城市夜间谷时负荷平衡矛盾日益突出。让燃煤机组低于最小技术出力运行和加大抽蓄电站抽水是解决该问题的两种途径。在建立两类机组深度调峰模型的基础上,构建计入深度调峰需求的调峰决策模型,进而通过浙江电网案例分析,探讨可再生能源消纳总量和结构变化对深度调峰方式的影响。结果表明:存在一个煤机深度调峰适用的可再生能源消纳量范围,低于/高于该范围时,加大抽蓄运行功率可因削峰填谷或避免煤机进入高能耗投油深度调峰状态而获得更加效益;光伏消纳比重较高有助于缓解谷电平衡矛盾,而多消纳风电或外来水电可能增加抽蓄电站投运需求。With the increase of renewable energy consumption(REC)and load peak-valley difference,the contradiction of night valley load balance is becoming increasingly prominent in the eastern coastal cities of China.Making coal-fired units operate below their minimal technical outputs and increasing pumping capacities of the pump storage station(PSS)are two means to solve this problem.On the basis of the establishment of deep peak regulation models for these two kinds of units,a peak regulation decision-making model considering deep peak regulation demand was set up in this paper.Furthermore,case studies were carried out on Zhejiang power network to explore the influence of total REC amount and structural change upon the deep peak regulation mode.Results of case studies showed that there existed a range of REC suitable for deep peak regulation of the coal-fired unit.Increasing pumped storage power would bring more benefits when the level was lower/higher than this range,on account of peak clipping or preventing coal-fired units from entering into high consumption deep peak regulation state.High proportion of photovoltaic consumption could help to alleviate the contradiction of valley load balance,while more consumption of wind power or external hydropower might probably arouse higher requirement on PSS installation.

关 键 词：燃煤机组 抽水蓄能 深度调峰 节能调度 可再生能源消纳 

分 类 号：TM73[电气工程—电力系统及自动化]