中国电力 ›› 2022, Vol. 55 ›› Issue (1): 46-54.DOI: 10.11930/j.issn.1004-9649.202012091

• 含大规模储能的高比例新能源电力系统协调规划与优化调度技术专栏 • 上一篇    下一篇

基于源-荷匹配的区域电网风/光/储容量配比优化方法

李湃1, 方保民2, 祁太元2, 黄越辉1, 史昭娣1, 王莲芳2   

  1. 1. 新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司), 北京 100192;
    2. 国网青海省电力公司, 青海 西宁 810008
  • 收稿日期:2020-12-21 修回日期:2021-09-22 出版日期:2022-01-28 发布日期:2022-01-20
  • 作者简介:李湃(1988-),男,博士,高级工程师,从事新能源发电并网及调度运行技术研究,E-mail:lipai@epri.sgcc.com.cn;方保民(1973-),男,高级工程师,从事新能源发电并网及调度运行管理工作,E-mail:fangbaomin@163.com;祁太元(1965-),男,高级工程师,从事能源与电力运营、电力系统运行管理工作
  • 基金资助:
    国家电网有限公司科技项目(5419-202034054A-0-0-00)

Capacity Proportion Optimization of Wind, Solar Power and Battery Energy Storage System for Regional Power Grid Based on Source-Load Matching

LI Pai1, FANG Baomin2, QI Taiyuan2, HUANG Yuehui1, SHI Zhaodi1, WANG Lianfang2   

  1. 1. State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems (China Electric Power Research Institute), Beijing 100192, China;
    2. State Grid Qinghai Electric Power Company, Xining 810008, China
  • Received:2020-12-21 Revised:2021-09-22 Online:2022-01-28 Published:2022-01-20
  • Supported by:
    This work is supported by the Science and Technology Project of SGCC (No.5419-202034054A-0-0-00)

摘要: 合理优化风/光/储容量配比是实现大规模区域电网新能源高效利用的基础。提出一种基于源-荷匹配的区域电网风/光/储容量配比优化方法。首先,考虑了新能源与储能的运行特性、装机容量、新能源弃电率、新能源发电量占比等约束条件,建立以全网新能源发电量最大为目标的多区域风/光装机容量优化模型,并通过引入系统负荷匹配偏差约束来保证系统发电功率与用电负荷变化特性相一致。然后,以风/光全年出力时间序列为输入,通过时序生产模拟计算,确定满足源-荷最优匹配后的风/光/储最优接入容量配比。最后,以中国“三北”地区某区域电网为对象进行算例验证,验证了所提模型和方法的有效性和实用性。

关键词: 新能源, 化学储能, 容量配比优化, 源-荷匹配, 时序生产模拟

Abstract: Capacity proportion optimization of the wind, solar power, and battery energy storage system is the basis for efficient utilization of renewable energy in a large-scale regional power grid. In this regard, an optimization method based on source-load matching was proposed to allocate the capacity proportion of the wind, solar, and battery energy storage system in a regional power grid. An optimization model was built to maximize wind and solar power generation. The optimization model considered the operational characteristics of wind and solar power and energy storage, constraints of installed capacity, annual curtailment rates, and proportions of wind and solar power generation. Moreover, the constraint of system-load matching deviation was placed to maintain the match between system power outputs and load demand. Then, with the annual output time-series of wind and solar as the input, the optimal capacity proportion of the wind, solar power, and battery energy storage system, which met the optimal source-load matching, was obtained by solving the proposed model. Finally, the effectiveness and practicability of the proposed model and method were verified by testing on an actual regional power grid in the north of China.

Key words: renewable energy, battery energy storage, capacity proportion optimization, source-load matching, time sequence simulation