摘要
为提高直流配电网的电能质量,提出了一种基于蓄电池-超级电容混合储能的母线电压分区控制策略,对母线电压进行6层分区治理,并网点采用定电压控制策略,蓄电池用于平抑母线电压波动较小时的功率缺额,超级电容用于协助平抑母线电压急剧变化时的功率缺额。最后,通过Matlab/Simulink仿真验证了在所有区间中所提控制策略都能够有效切换,维持母线电压稳定。
In order to improve power quality of DC power distribution network,this paper presents a bus volt-age partitioning control strategy based on hybrid battery and super capacitor energy storage for six-interval segmentation of bus voltage. The integration point adopts constant voltage control strategy. The battery is used to stabilize the power shortage in the case of small voltage fluctuation, and the super capacitor is used to compensate power shortage in the case of drastic bus voltage changes. Finally, it is demonstrated through Matlab/Simulink that the proposed control strategy can effectively switch and maintain bus voltage stability in all sections.
出处
《浙江电力》
2017年第6期20-25,共6页
Zhejiang Electric Power
关键词
直流配电网
超级电容
混合储能
电能质量
DC distribution network
super capacitor
hybrid energy storage
power quality
