综合智慧能源 ›› 2026, Vol. 48 ›› Issue (7): 98-109.doi: 10.3969/j.issn.2097-0706.2026.07.010

• 储能规划配置 • 上一篇    

提升新能源承载力的电网需求响应与储能配置协同优化方案

欧圣1(), 蒋锐琳1, 张钰1, 韩自奋2(), 宋关羽3(), 董海鹰1,*()   

  1. 1 兰州交通大学 新能源与动力工程学院兰州 730070
    2 国网甘肃省电力公司兰州 730030
    3 天津大学 电气自动化与信息工程学院天津 300072
  • 收稿日期:2025-12-30 修回日期:2026-03-17 出版日期:2026-07-25
  • 通讯作者: * 董海鹰(1966),男,教授,博士,从事新能源电力系统规划、分析、运行与控制技术等方面的研究,hydong@mail.lzjtu.cn
  • 作者简介:欧圣(1999),男,硕士生,从事新能源与储能等方面的研究,17729876052@163.com
    韩自奋(1976),男,正高级工程师,博士,从事水电、新能源与储能调度管理等方面的工作,hanzf@gs.sgcc.com.cn
    宋关羽(1990),男,高级工程师,博士,从事分布式发电与微电网等方面的研究,gysong@tju.edu.cn
  • 基金资助:
    中国工程院院地合作项目(2025-GS-XZ-02)

Coordinated planning of demand response and energy storage configuration for increasing new energy hosting capacity of power grids

OU Sheng1(), JIANG Ruilin1, ZHANG Yu1, HAN Zifen2(), SONG Guanyu3(), DONG Haiying1,*()   

  1. 1 School of New Energy and Power EngineeringLanzhou Jiaotong UniversityLanzhou 730070, China
    2 State Grid Gansu Electric Power CompanyLanzhou 730030, China
    3 School of Electrical Automation and Information EngineeringTianjin UniversityTianjin 300072, China
  • Received:2025-12-30 Revised:2026-03-17 Published:2026-07-25
  • Supported by:
    China Academy of Engineering Regional Cooperation Project(2025-GS-XZ-02)

摘要:

新能源的快速发展给电网的安全稳定运行和区域电网的新能源承载能力带来挑战。在保证供电可靠性的前提下,提出综合考虑需求响应与储能优化配置的新能源承载能力提高方案。采用Copula理论和K-means聚类算法生成风光出力典型场景,构建基于价格型激励的需求响应模型,并通过价格信号优化负荷曲线。其次,构建考虑经济性和稳定性的储能双层优化模型,上层以储能投资成本最小为目标优化储能容量、下层以系统综合运行成本最低为目标开展联合调度,以失负荷概率(LOLP)为约束评估电网的最大新能源承载能力,通过配置储能优化装机容量,提升新能源的承载能力。依托电力系统分析综合程序(PSASP)开展潮流计算,量化储能接入对节点电压的影响,对区域电网进行安全性校验。以甘肃某区域电网为例,设置有无考虑需求响应两类情景对能源系统进行仿真。仿真结果表明,需求响应优化后,同等承载力下储能配置容量由5 090 MW降至4 320 MW,储能投资成本减少11.01亿元;配置4 320 MW储能可将新能源装机占比由74.0% 提升至83.3%;储能接入后关键节点电压越限概率显著下降,节点电压标幺值稳定维持在0.95~1.05;但新能源占比超88.9%后,储能投资成本快速攀升,经济性大幅衰减。分时电价驱动的需求响应可平滑负荷曲线、降低储能配置需求;储能与需求响应协同能从源荷储协同提升电网调节能力,有效提高新能源承载力、降低失负荷风险。二者联合可抑制节点电压波动,改善电网稳态安全水平,该优化方案可为新能源富集区域储能规划提供参考。

关键词: 需求响应, 储能配置, 双层优化, 新能源承载力, 供电可靠性, 失负荷概率

Abstract:

The rapid development of new energy poses challenges to the secure and stable operation of power grids and the new energy hosting capacity of regional power grids. Therefore, a new energy hosting capacity improvement scheme considering demand response and optimal energy storage configuration was proposed while ensuring power supply reliability. Typical wind and photovoltaic power output scenarios were generated using Copula theory and the K-means clustering algorithm, and a demand response model based on price incentives was constructed to optimize the load curve through price signals. Subsequently, a bi-level optimization model for energy storage considering economic efficiency and stability was established. The upper level aimed to minimize energy storage investment costs to optimize energy storage capacity, while the lower level conducted coordinated scheduling with the objective of minimizing the comprehensive system operation cost. The loss of load probability (LOLP) was used as a constraint to evaluate the maximum new energy hosting capacity of the power grid, and the installed energy storage capacity was optimized through energy storage configuration to improve new energy hosting capacity. Power flow calculations were performed based on the Power System Analysis Software Package (PSASP) to quantify the impact of energy storage integration on nodal voltages and conduct security verification of the regional power grid. Taking a regional power grid in Gansu Province as an example, two scenarios with and without considering demand response were established to simulate the energy system. Simulation results showed that, after demand response optimization, the energy storage configuration capacity decreased from 5 090 MW to 4 320 MW under the same hosting capacity, and the energy storage investment cost was reduced by 1.101 billion yuan. The configuration of 4 320 MW energy storage increased the proportion of installed new energy capacity from 74.0% to 83.3%. After energy storage integration, the probability of voltage limit violations at key nodes decreased significantly, and the per-unit values of nodal voltages remained stable ranging from 0.95 to 1.05. However, when the proportion of new energy exceeded 88.9%, the energy storage investment cost increased rapidly, and the economic efficiency decreased substantially. Time-of-use price-driven demand response could smooth the load curve and reduce the demand for energy storage configuration. The coordination of energy storage and demand response can enhance grid regulation capability through source-load-storage coordination, effectively improve new energy hosting capacity, and reduce the risk of load loss. The coordination of the two approaches can suppress nodal voltage fluctuations and improve the steady-state security level of power grids. The proposed optimization scheme can provide references for energy storage planning in regions with abundant new energy resources.

Key words: demand response, energy storage configuration, bi-level optimization, new energy hosting capacity, power supply reliability, loss of load probability

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