电器与能效管理技术Issue(21)：41-46,78,7.
基于混合储能电压源逆变器平抑微电网功率波动的方法研究
Research on the Method for Smoothing Power Fluctuations in Microgrid Based on Hybrid Energy Storage Voltage Source Inverter
摘要
Abstract
In order to smooth the power fluctuations caused by intermittent micro power source,the control strategy of hybrid energy storage based on super-capacitor and battery was researched and a two stage management method of hybrid energy storage was designed.To take full advantage of large power density and long cycle life of super-capacitor in charging and discharging,it is used as the first buffer energy storage to smooth the power fluctuations priority in this method.Distribution network is used as second energy storage when the microgrid is under grid-connected operation.The power of tie line is controlled to make the terminal voltage of super-capacitor within limits and maintain PCC bus voltage fluctuation within the permissible range.Battery is used as second energy storage when the microgrid is under island operation.The charging and discharging times of battery are reduced by the buffering effect of super-capacitor and the life of battery is prolonged.When the terminal voltage of super-capacitor reaches to alert value,battery is controlled accurately to constant power output,so the terminal voltage of super-capacitor is returned to normal value.The simulation results show that the method is effective.关键词
混合储能系统/PCC母线电压/超级电容/蓄电池/能量管理Key words
hybrid energy storage system/PCC bus voltage/super-capacitor/battery/energy management分类
信息技术与安全科学引用本文复制引用
周福举,张宸宇,郑建勇,胡洛蠧..基于混合储能电压源逆变器平抑微电网功率波动的方法研究[J].电器与能效管理技术,2014,(21):41-46,78,7.基金项目
前瞻性联合研究项目 （）
