摘要
在超级电容和蓄电池的混合储能系统,如果功率分配不当,会造成储能系统充电电流振荡或过大。为此,提出一种以储能元件荷电状态为判断依据的功率分配方法,根据荷电状态确定分解层次,接着添加多级电压控制进行储能功率的初次分配,进一步通过多环PI控制和功率修正,有效抑制充电电流振荡和过充。最后,通过仿真验证了其控制方法的有效性。
In the hybrid energy storage system of supercapacitor and battery,the current oscillation or excessive current during charging of the energy storage system may be happened,if the power is misallocated.Based on this,a power allocation method based on the state of charge of the energy storage component is proposed.The decomposition level is determined according to the state of charge,and then the multi-level voltage control is added for the initial distribution of energy storage power.Furthermore,the current oscillation and excessive current during charging are suppressed by means of the multi-loop PI control and power correction.The simulation experiments verify the effectiveness of the control method.
作者
张静宇
高妍
张红娟
靳宝全
ZHANG Jingyu;GAO Yan;ZHANG Hongjuan;JIN Baoquan(College of Electrical and Power Engineering,Taiyuan University of Technology,Taiyuan 030024,China;MOE Key Laboratory of New Sensor and Intelligent Control,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《现代电子技术》
北大核心
2020年第6期106-109,114,共5页
Modern Electronics Technique
基金
国家自然科学基金资助项目(51775363)
山西省重点研发计划项目(201803D121124)。
关键词
混合储能
电压控制
功率分配
荷电状态
功率校正
仿真验证
hybrid energy storage
voltage control
power distribution
charged state
power correction
simulation verification
