促进风电消纳的蓄热罐运行策略

发布时间：2018-01-19 08:42

本文关键词： 热电联产风电蓄热罐蓄放热策略　出处：《电力系统自动化》2017年07期 　论文类型：期刊论文

【摘要】：热电厂中配置蓄热罐有助于改善其调峰能力和提高风电接纳水平。鉴于蓄热罐的引入一定程度上增加了电厂调度的难度,提出了基于双线性模型的调度策略以开展热电机组与蓄热罐的协调运行。所提调度策略中采用了蓄热罐运行状态的预判方法,并重点应用了弃风率和成本增长率的技术指标,通过调整电出力以减小弃风,控制热出力以降低运行成本,并进一步考虑风电的不确定性,制定了最优调度方案。算例分析表明,所提调度策略能够高效利用蓄热罐的蓄放热能力,提高风电接纳量与优化机组成本。
[Abstract]:The installation of heat storage tank in thermal power plant is helpful to improve its peak-shaving ability and increase the acceptance level of wind power. In view of the introduction of heat storage tank, the difficulty of power plant dispatching is increased to a certain extent. The scheduling strategy based on bilinear model is put forward to carry out the coordinated operation of heat generating unit and storage tank. In the proposed scheduling strategy, the pre-evaluation method of the operation state of the storage tank is adopted. The technical indexes of abandoned wind rate and cost growth rate are applied emphatically, and the uncertainty of wind power is further considered by adjusting the output force to reduce the abandoned wind force, controlling the thermal output force to reduce the operating cost. The optimal scheduling scheme is established and the example analysis shows that the proposed scheduling strategy can efficiently utilize the heat storage and discharge capacity of the storage tank and increase the wind power intake and optimize the unit cost.
【作者单位】：武汉大学电气工程学院;国网江苏省电力公司检修分公司;北方光电集团有限公司;
【分类号】：TM73
【正文快照】： 上网日期:2016-11-23。0引言中国风电资源主要集中在西北、华北、东北(简称“三北”)地区,这些地区的风电装机容量已达全国总风电装机容量的86.4%。风电和热电联产机组在“三北”地区的电源结构中均占有较高比重[1]。热电机组具有“以热定电”的运行特性,在冬季供暖期,供热需

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