基于自然资源评价的独立微网电源优化配置  

Power capacity optimization of standalone microgrids based on natural resource evaluation

作　　者：朱志芳 林紫菡 陈丽萍 董红 高艳娜 林凌雪[2] ZHU Zhifang;LIN Zihan;CHEN Liping;DONG Hong;GAO Yanna;LIN Lingxue(Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Guangzhou 510510,China;School of Electric Power Engineering,South China University of Technology,Guangzhou 510641,China)

机构地区：[1]广东电网有限责任公司广州供电局,广州510510 [2]华南理工大学电力学院,广州510641

出　　处：《南京信息工程大学学报》2024年第5期608-617,共10页Journal of Nanjing University of Information Science & Technology

基　　金：南方电网公司项目(030100QQ00220008);直流输电技术国家重点实验室开放基金(SKLHVDC-2022-KF-01)。

摘　　要：为了保证独立微网运行的经济性和可靠性,在进行独立微网规划时,首先要确认电源的优化配置.微网内部负荷水平、所在地区地理和气候等自然资源条件会影响独立微网电源类型和容量的选择.本文研究不同地区“风/光/水/储”的综合自然资源特性,考虑独立微网供电可靠性和发电环保性,建立以微网电源最小综合发电成本为目标,计及电力电量平衡等约束条件的优化模型,采用线性化算法求解.针对风机、光伏和水电出力的不确定性,研究生成对抗网络GAN,对风光水出力进行多场景模拟,采用K-Medoids聚类算法的改进方法,实现运行场景的削减,提高了计算效率.为了分析风光水资源特性,构建了风光水资源指标评价体系,基于模糊评价方法,获取我国内地地区31个省级行政区的风光水资源水平.选取5个代表地区,验证所提方法的可行性和合理性,分析地区独立微电网电源配置方案和电源配置规律,为独立微电网电源规划提供参考.To guarantee the reliable and economical operation of standalone microgrids,the optimal configuration of power capacity must be determined during the planning phase.The selection of power source types and power capac-ities of standalone microgrids is affected by internal load levels and the unique natural resource conditions such as wind,photovoltaic(PV),water and storage potential of the respective regions.This paper investigates the compre-hensive natural resource conditions of“wind/PV/water/storage”across different regions and establishes a multi-ob-jective optimization model aimed at minimizing the annual generation cost,while considering the reliable power sup-ply and environmentally friendly power generation.Constraints related to electric power and energy balance are in-corporated into the optimization model,which is solved via a linearization algorithm.To address the uncertainty in the output of wind,PV and water power,we employ Generative Adversarial Networks(GANs)to simulate multiple sce-narios,which are then reduced via an improved K-Medoids clustering algorithm,thereby enhancing the computational efficiency.Furthermore,an index evaluation system is constructed to analyze the characteristics of wind,PV and water resources,and the natural resource levels of 31 provincial-level administrative regions in Chinas mainland are obtained using a fuzzy evaluation method.By comparing the power capacity configurations of standalone microgrids in 5 representative regions with varying natural resources,this study validates the feasibility and rationali-ty of the proposed approach,and provides valuable insights for the planning of standalone microgrid system.

关 键 词：独立微网 自然资源 风光水 电源优化 场景模拟 

分 类 号：TM715[电气工程—电力系统及自动化]