南方电网技术2025，Vol.19Issue(1)：160-173,14.DOI:10.13648/j.cnki.issn1674-0629.2025.01.016
面向配网规划的光储最优配比显式表征及量化分析方法
Explicit Characterization and Quantitative Analysis Method for Optimal Allocation Ratio of Photovoltaic and Energy Storage for Distribution Network Planning
摘要
Abstract
With the large-scale integration of photovoltaic(PV)into the distribution network,energy storage(ES),as a flexible and economically controllable resource,becomes an important choice of investment for distribution network planning to smooth out the fluctuation of PV generation and improve the economic efficiency of distribution network operation.The traditional methods identify the optimal allocation ratio of PV and ES in distribution network planning and analyze the economic benefits of distribution network planning by solving a large number of optimal distribution network planning problems.However,these methods are computationally inefficient and cannot explicitly quantify the impact of ES capacity on the overall economic efficiency,making it difficult to guide distribution network planning.Therefore,an explicit characterization and quantitative analysis method for the optimal allocation ratio of photovoltaic and energy storage for distribution network planning is proposed.First,a distribution network planning model is constructed,which contains constraints of PV generation and physical operating characteristics of ES integrated into the distribution network and aims at the highest overall economic efficiency of PV and ES planning in the distribution network;on the basis of this,the model is converted into convex by pre-solving method.Then,based on the multi-parameter planning method with PV capacity as the planning parameter,the analytical expressions between the optimal planning capacity of ES and the PV capacity of distribution network,the cost of distribution network planning and the PV capacity of distribution network,are constructed.Finally,based on the analytical expressions,the optimal ES capacity under different PV capacities and the mechanism of optimal allocation ratio of PV and ES affecting the economic efficiency of distribution network planning are analyzed,which can assist the establishment of distribution network planning schemes.The results of the case study in PJM 5-bus system and IEEE 141-bus system verify the effectiveness of the proposed method.关键词
光储联合系统/配电网规划/多参数规划/光伏/储能Key words
combined PV-ESS system/distribution network planning/multi-parameter programming/photovoltaic/energy storage分类
信息技术与安全科学引用本文复制引用
王旭晴,龚向阳,杨林泽,董博,曾德龙,王海玲,汪洋,赖晓文,雷星雨..面向配网规划的光储最优配比显式表征及量化分析方法[J].南方电网技术,2025,19(1):160-173,14.基金项目
国家自然科学基金资助项目(52177072) （52177072）
宁波恒晨电力建设有限公司科技项目(KJXM2022036).Supported by the National Natural Science Foundation of China(52177072) （KJXM2022036）
the Science and Technology Project of Ningbo Hengchen Electric Power Construction Co.,Ltd(KJXM2022036). （KJXM2022036）
