基于Fréchet算法的电化学储能AGC控制性能评价指标  

Performance Indices of Electrochemical Energy Storage for AGC Control Based on the Discrete Fréchet Algorithm

作　　者：黄昊 吴继平 滕贤亮 孙国强[1] 徐瑞 HUANG Hao;WU Jiping;TENG Xianliang;SUN Guoqiang;XU Rui(College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,China;NARI Group Corporation(State Grid Electric Power Research Institute),Nanjing 211106,China;State Key Laboratory of Smart Grid Protection and Control,Nanjing 211106,China)

机构地区：[1]河海大学能源与电气学院,江苏南京211100 [2]南瑞集团有限公司(国网电力科学研究院有限公司),江苏南京211106 [3]智能电网保护和运行控制国家重点实验室,江苏南京211106

出　　处：《中国电力》2020年第1期108-114,共7页Electric Power

基　　金：国家重点研发计划资助项目(多能源互补的交直流电网协同调度控制关键技术研究与示范，2016YFB0900502)~~

摘　　要：电化学储能快速精准的调节特性非常适用于电网调频。为准确评价储能调节资源参与自动发电控制(AGC)的控制性能,基于Fréchet距离算法,通过计算时间周期内储能实际出力与理想出力曲线的相似度,提出了表征储能调节性能的相似度、延迟度、偏差度和贡献度指标。新型指标不仅能够准确表征储能的调节性能以及调节效果,同时也能适应常规机组的考核评价。基于储能和常规机组实际运行数据进行了算例计算,对比分析结果验证了提出指标的有效性。Due to its capabilities to provide fast and accurate regulation,the application of the electrochemical energy storage is suitable for frequency modulation in power grid.In order to accurately evaluate the control performance of energy storage resources when participating in AGC control,four control performance indices in terms of the similarity,delay,deviation and contribution indices are proposed by calculating the similarity between the actual output and ideal output curve of energy storage within certain time period.The new indices can not only accurately represent the energy storage regulating performance and effect,but also be adapted for the evaluation of conventional units.Case studies are performed using the actual operation data of both energy storage units and conventional units,such that the validity of the proposed indices are verified by comparison and analysis.

关 键 词：电化学储能 电网调频 AGC机组 离散Fréchet算法 评价指标 

分 类 号：TM91[电气工程—电力电子与电力传动]