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作 者:闫志彬 李立 阳鹏 宋蕙慧 车彬 靳盘龙 YAN Zhibin;LI Li;YANG Peng;SONG Huihui;CHE bin;JIN Panlong(State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750001,China;School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150000,China;School of New Energy,Harbin Institute of Technology(Weihai),Weihai 264200,China)
机构地区:[1]国网宁夏电力有限公司,宁夏银川750001 [2]哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨150000 [3]哈尔滨工业大学(威海)新能源学院,山东威海264200
出 处:《中国电力》2025年第2期103-110,共8页Electric Power
基 金:国家自然科学基金资助项目(52477085);国家电网公司科技项目(1400-202435281A-1-1-ZN)。
摘 要:为兼顾微电网的稳定性和运行效益,分析了构网型储能的惯量支撑特性和频率支撑能力。基于此,明确了微电网的优化目标,形成了功率平衡、设备运行、系统惯量、系统备用容量等约束,并结合Optimization Toolbox的非线性优化问题解算器,提出了考虑构网型储能支撑能力的优化调度策略。为测试所提策略的有效性,采用核密度估计法和Copula函数构建了风光出力联合概率分布函数,基于K-means聚类形成新能源典型场景。在典型场景下进行分析,结果表明:所提方法能够发挥构网型储能支撑能力,有效提升新能源消纳水平。In order to coordinate the stability and operation efficiency of the microgrid,the inertial support characteristics and frequency support capability of the grid-forming storage are analyzed.Based on this,the optimization objectives of the microgrid are clarified,and the constraints such as power balance,equipment operation,system inertia,and reserve capacity are formed.Combined with the nonlinear optimization problem solver of the Optimization Toolbox,an optimization scheduling strategy considering the support capability of the grid-forming energy storage proposed.In order to test the effectiveness of the proposed strategy,the joint probability distribution function of wind and solar power generation is constructed by using the kernel density estimation method the Copula function,and the typical scenarios of new energy are formed based on the K-means clustering.The analysis is carried out under the typical scenarios,and results show that the proposed method can give full play to the support capability of the grid-forming energy storage and effectively improve the level of new energy consumption.
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