• 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 ›› 2024, Vol. 45 ›› Issue (2): 79-89.doi: 10.12204/j.issn.1000-7229.2024.02.007

• 智能电网 • 上一篇    下一篇

考虑功率互济的多区域电网储能系统联合优化配置

杨贺钧1(), 王井寅1(), 马英浩1(), 张大波1(), 沈玉明2(), 马静2()   

  1. 1.新能源利用与节能安徽省重点实验室(合肥工业大学), 合肥市 230009
    2.国网安徽省电力有限公司经济技术研究院, 合肥市 230022
  • 收稿日期:2023-04-18 出版日期:2024-02-01 发布日期:2024-01-28
  • 通讯作者: 杨贺钧(1985),男,博士,副教授,硕士生导师,主要研究方向为电力系统规划与可靠性,E-mail:cquyhj@126.com
  • 作者简介:王井寅(1998),男,硕士研究生,研究方向为电力系统规划,E-mail:w3477443672@163.com;
    马英浩(1989),男,博士,讲师,硕士生导师,主要研究方向为电力系统规划与可靠性、综合能源系统优化运行,E-mail:yinghao_ma@126.com;
    张大波(1979),男,博士,副教授,硕士生导师,主要研究方向为电力系统风险评估、电网调度运行优化,E-mail:zhangdb2004@163.com;
    沈玉明(1988),男,博士,高级工程师,主要研究方向为电力系统规划,E-mail:syming1988@126.com;
    马静(1984),男,硕士,正高级工程师,主要研究方向为电网规划设计技术,E-mail:36924154@qq.com
  • 基金资助:
    安徽省自然科学基金项目(2208085UD07)

Joint Planning of Energy Storage Systems for Multi-area Grids Considering Power Interconnection

YANG Hejun1(), WANG Jingyin1(), MA Yinghao1(), ZHANG Dabo1(), SHEN Yuming2(), MA Jing2()   

  1. 1. Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving(Hefei University of Technology), Hefei 230009,China
    2. Economic Research Institute of State Grid Anhui Electric Power Co., Ltd., Hefei 230022, China
  • Received:2023-04-18 Published:2024-02-01 Online:2024-01-28
  • Supported by:
    Anhui Provincial Natural Science Foundation(2208085UD07)

摘要:

在新能源并网规模逐步提升的背景下,针对广域互联电网的多储能规划问题,建立考虑区域电网互济的储能系统联合规划优化配置模型。首先,建立多区域电力系统的网络等效模型,以刻画多区域互联系统的功率互济关系,并提出多区域系统的机组启停安排方法,计算不同区域的机组日内启停方案。其次,针对互联电网的多区域储能协同规划问题,建立计及功率互济的多区域储能联合双层优化配置模型。模型外层以多区域新能源总弃量最小为目标,优化计算各区域的储能配置;内层以区域间传输功率与区域注入功率的波动量最小为目标,以获得火、储以及新能源的最优出力方案。然后,利用全场景近似网损和联络线综合利用率,实现多区域储能规划方案的效益评估,实现储能投资价值的量化。最后,通过算例分析验证所提模型及方法的有效性。算例分析表明,所提模型可充分兼顾各区域新能源消纳要求,有效提升全网消纳指标,节约储能系统投资,可应用于广域互联电网的储能系统协同规划。

关键词: 储能规划, 运行优化, 互联电网, 新能源消纳

Abstract:

An optimal allocation model for the planning of energy storage systems considering power interconnections is established for multi-storage system planning in multi-area grids to accommodate the gradual increase in the scale of renewable energy. First, an equivalent model of a multi-region power system is proposed to clarify the cooperation of interconnected regions; second, the unit start-stop planning method in a multi-region system is proposed to calculate the intraday start-stop scheme of units subordinated to different regions. Subsequently, a two-layer planning model of energy storage systems for multi-area grids considering power interconnections is proposed to allocate storage systems in interconnected grids. The optimal renewable energy consumption of the entire grid is considered as the outer layer objective to calculate the configuration of the energy storage systems. The inner model is developed to minimize the sum of the fluctuations of the intra-regional transmission power and the injection power in each region for the optimal operation (including thermal units, storage systems, and transmission lines) of multiple regions and scenarios. Subsequently, the approximate network loss value and utilization index of the transmission lines are proposed to quantify the benefits of the energy storage planning scheme. Finally, we verify the effectiveness of the proposed model and method through a case analysis. The results show that the proposed model can fully consider the requirements for renewable energy consumption in each region and effectively improve the consumption index of the entire grid, which can be applied to the collaborative planning of energy storage systems in a wide-area interconnected grid.

Key words: planning of energy storage system, optimal operation, interconnected grids, renewable energy consumption

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