混合储能辅助火电机组一次调频及其容量配置  

PRIMARY FREQUENCY REGULATION AND CAPACITY CONFIGURATION OF HYBRID ENERGY STORAGE AUXILIARY THERMAL POWER UNIT

作　　者：严晓生 刘仲稳 赵建红 韩旭[1] 韩中合[1] Yan Xiaosheng;Liu Zhongwen;Zhao Jianhong;Han Xu;Han Zhonghe(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Baoding 071003,China;CHN Energy(Lianjiang)Port&Power Co.,Ltd.,Fuzhou 350500,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,保定071003 [2]国能(连江)港电有限公司,福州350500

出　　处：《太阳能学报》2024年第11期647-654,共8页Acta Energiae Solaris Sinica

基　　金：保定市科技计划项目(2272P008);国家科技支撑计划项目(2014BAA06B01)。

摘　　要：为使火电机组更好地应对新型能源迅速发展背景下对原有电网结构带来的冲击,提升火电机组运行的稳定性、安全性及经济性,基于国内外研究现状,提出锂电池-飞轮控制策略与火电机组区域动态一次调频模型,并研究一定储能容量下飞轮-锂电池混合储能系统容量配置方案,以系统频率波动程度、波动峰值极差、实际贡献电量等指标对调频性能作出评价。通过Matlab/Simulink进行仿真验证,得出在连续扰动下系统频率波动程度为0.00119 pu,频率波动减小30.81%,功率波动减小43.65%,实际贡献电量增加23.17%。结果表明,在火电机组受到外界负荷扰动时,混合储能辅助火电机组调频可有效提高火电机组运行稳定性与经济性。In order to make thermal power units better cope with the impact on the original power grid structure under the background of rapid development of new energy sources,and improve the stability,safety and economy of thermal power unit operation,based on the current research status at home and abroad,the lithium battery-flywheel control strategy and the regional dynamic primary frequency regulation model of thermal power units are proposed,and the capacity configuration scheme of flywheel-lithium battery hybrid energy storage system under a certain energy storage capacity is studied,and the simulation verification is carried out through Matlab/Simulink,Under continuous disturbance,the frequency fluctuation degree of the system is 0.00119 pu,the fluctuation amount decreases by 30.81%,the power fluctuation decreases by 43.65%,and the actual power contribution increases by 23.17%.The results show that when the thermal power unit is disturbed by external load,the frequency regulation of hybrid energy storage auxiliary thermal power unit effectively improves the operation stability and economy of thermal power unit.

关 键 词：发电厂 飞轮 储能 一次调频 评价指标 

分 类 号：TK26[动力工程及工程热物理—动力机械及工程] TM621[电气工程—电力系统及自动化]