热力发电2024，Vol.53Issue(10)：81-89,9.DOI:10.19666/j.rlfd.202403062
混合储能调频工程经济性提升策略研究及应用
Research and application of economic improvement strategy for hybrid energy storage frequency modulation project
摘要
Abstract
Energy storage system assisted thermal power unit frequency regulation is limited by the capacity of storage device,and its output power can not track the command power for a long time.At the same time,lithium battery energy storage technology also exists problems in safety hazards,cycle life limitations,limited enhancement of unit frequency gain gain and other issues.For this reason,the characteristics of high cycle life and high safety of supercapacitor are used to construct the simulation model of hybrid energy storage system assisted coal-fired thermal power unit frequency regulation in Matlab/Simulink platform.Combining with the operating state of thermal power unit and energy storage system,a set of control strategy based on index calculation and fuzzy control synergy is designed to achieve the adaptive adjustment of hybrid energy storage system output under dynamic operating conditions.Simulations show that,the control strategy can effectively extend the service life of lithium batteries and efficiently utilize the residual power of the hybrid energy storage system.Compared with the conventional control strategy of hybrid energy storage system,the proposed control strategy reduces the average daily use time of lithium battery by 60%,improves the comprehensive index of frequency regulation performance by 34%,and increases the average daily revenue by 20 000 yuan,which has high engineering application value.关键词
大容量超级电容/使用寿命/调频性能综合指标/模糊控制/指标计算Key words
large-capacity supercapacitors/service life/comprehensive index of frequency modulation performance/fuzzy control/index calculation引用本文复制引用
殷悦,孙钢虎,兀鹏越,王飞,杨沛豪,郭昊,李菁华..混合储能调频工程经济性提升策略研究及应用[J].热力发电,2024,53(10):81-89,9.基金项目
中国华能集团有限公司总部科技项目(HNKJ22-H12) Science and Technology Project of China Huaneng Group Co.,Ltd.(HNKJ22-H12) （HNKJ22-H12）
