摘要
储能作为一种能量缓冲装置,可以有效抑制可再生能源输出功率的波动。文中介绍了一种基于平滑控制的超级电容与电池混合储能系统的能量管理方法,该方法分别利用超级电容和电池补偿可再生能源输出功率波动的高频分量与中低频分量;在传统限值管理的基础上,引入超级电容端电压预先控制,根据超级电容的剩余容量与充放电状态对超级电容和电池的输出功率进行修正,以防止超级电容因端电压达到上下限而停止工作。最后,利用PSCAD仿真验证了所述方法的有效性。
The energy storage system （ESS） as an energy buffering unit can effectively suppress power fluctuation. A new energy management method of hybrid battery and ultracapacitor storage system based on smoothing control is proposed. In this method, batteries and ultracapacitors are used to compensate for the low-frequency components and high-frequency components of fluctuating power, respectively. Meanwhile on the basis of traditional threshold management method, ultracapacitor terminal voltage pre-control is presented, in which according to the charging/discharging mode and state of charge （SOC） of ultracapacitors, the output power references of batteries and ultracapacitors are modified to prevent ultracapacitors from stopping working when terminal voltage reaches limits. Finally, a PSCAD model is used to verify the validity of this method.
出处
《电力系统自动化》
EI
CSCD
北大核心
2012年第16期36-41,共6页
Automation of Electric Power Systems
基金
国家重点基础研究发展计划(973计划)资助项目(2009CB219700
2010CB234608)
高等学校博士学科点专项科研基金资助项目(20090032110064)
天津市科技发展计划资助项目(09JCZDJC25000)
天津大学自主创新基金资助项目~~
关键词
可再生能源
蓄电池
平滑控制
混合储能系统
超级电容
能量管理
充放电控制
renewable energy
battery
smoothing control
hybrid energy storage system
ultracapacitor
energy management
charging and discharging control
