• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2019, Vol. 40 ›› Issue (10): 18-27.doi: 10.3969/j.issn.1000-7229.2019.10.003

• 电力系统弹性与灵活性 ·栏目主持 文福拴教授、林振智副教授· • 上一篇    下一篇

高比例可再生能源电力系统中计及灵活调节产品的实时调度

林鸿基1,闫园1,文福拴1,胡嘉骅2,曲昊源3,赵铮3   

  1. 1. 浙江大学电气工程学院,杭州市 310027;2. 国网浙江省电力有限公司经济技术研究院,杭州市 310008;3. 国网能源研究院有限公司,北京市 102209
  • 出版日期:2019-10-01
  • 作者简介:林鸿基 (1995),男,硕士研究生,主要从事电力系统风险管理与优化调度、电力市场方面的研究工作; 闫园 (1995),女,硕士研究生,主要从事电力经济与电力市场方面的研究工作; 文福拴 (1965),男,博士,教授,博士生导师,通信作者,主要从事电力系统故障诊断与系统恢复、电力经济与电力市场、智能电网与电动汽车方面的研究工作; 胡嘉骅 (1992),男,博士,主要从事电能交易、需求响应及可再生能源方面的研究工作; 曲昊源 (1990),女,硕士,工程师,研究方向为电力体制改革、电力市场; 赵铮 (1984),男,博士,高级工程师,研究方向为电力体制改革、电力市场。
  • 基金资助:
    国家电网公司总部科技项目“面向全国统一电力市场的电力现货市场模式选择与演化路径研究” (SGGSJY00PSJS1800063)

Real-Time Dispatch Considering Flexible Ramping Products in A Power System with High Proportion of Renewable Energy Generation

LIN Hongji1, YAN Yuan1, WEN Fushuan1, HU Jiahua2, QU Haoyuan3, ZHAO Zheng3   

  1. 1. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;2. State Grid Zhejiang Economic Research Institute, Hangzhou 310008, China;3. State Grid Energy Research Institute Co., Ltd., Beijing 102209, China
  • Online:2019-10-01
  • Supported by:
    This work is supported by research program “Research on Selection and Evolution Path of Electricity Spot Market for the National Unified Electricity Market”of State Grid Corporation of China (No. SGGSJY00PSJS1800063).

摘要: 并网运行的间歇性可再生能源发电(intermittent renewable energy generation, IREG)出力的波动性和不确定性对电力系统运行灵活性提出了更高的要求,系统灵活性匮乏时有可能导致切负荷和/或弃风弃光等问题。在此背景下,灵活调节产品(flexible ramping product, FRP)的概念应运而生并逐步引起广泛关注。FRP为电力系统消纳IREG提供了一种新思路。文章首先概述了电力系统灵活性的定义、特点与灵活性资源的获取问题。接着,提出了针对发电机组与需求响应(demand response, DR)资源提供FRP情形下的电力系统实时调度模型。该调度模型可容纳不同类型的需求响应资源,并考虑了未来时段机组的启停约束以及上行爬坡/下行滑坡速率约束。之后,基于负荷水平和IREG出力水平的预测值,采用拉丁超立方抽样获得多个相应的不同实际值的运行场景,并通过对实际调度过程的仿真来评价所获得的调度方案。最后,采用算例系统说明了FRP在提升系统灵活性以及消纳IREG方面的作用,以及不同因素对系统运行灵活性的影响。

关键词: 电力系统, 间歇性可再生能源发电(IREG), 运行灵活性, 灵活调节产品(FRP), 实时调度, 需求响应(DR)

Abstract:  The variability and uncertainty brought about by intermittent renewable energy generation (IREG) impose higher requirements on the operational flexibility of the power system. The scarcity of flexibility may result in load shedding and/or curtailment of wind or solar power. Given this background, the concept of flexible ramping product (FRP) thus comes into being and has gradually attracted extensive attentions, since FRP provides an alternative for enhancing the accommodation capability for IREG. Firstly, the definition and characteristics of power system flexibility and the procurement of flexible resources are clarified. Then, a real-time dispatch model considering FRP provided by generation units and demand response resources is presented. In the developed real-time dispatch model, multiple types of demand response resources are taken into account, and some operating constraints are respected including the ones associated with unit start-up/shut-down in future periods and ramping up/down rates. Next, scenarios with various corresponding actual load demands and power outputs from IRES are generated by the Latin Hypercube Sampling method based on forecasted values of load demands and power outputs from IREG, and the dispatch schemes are evaluated by simulating the actual dispatch process. Finally, the role of FRP in enhancing system flexibility and in enhancing the accommodation capability for IREG and the impacts of different factors on the system operational flexibility are investigated through case studies.

Key words: power system, intermittent renewable energy generation(IREG), operational flexibility, flexible ramping product(FRP), real-time dispatch, demand response(DR)

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