城轨交通超级电容储能系统变增益控制方法研究  

Research on variable gain control method for supercapacitor energy storage system in urban rail transit

作　　者：夏欢[1] 杨中平[1] 林飞[1] 王俊兴[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《北京交通大学学报》2015年第5期105-111,共7页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

摘　　要：在城轨交通中使用超级电容储存列车再生制动能量可实现良好的节能和稳压效果.本文分析了牵引供电系统、列车、双向DC/DC变换器和超级电容的特性,由此建立了超级电容储能系统模型,并根据所建立的模型探讨了牵引网电压和占空比对系统动态性能的影响.分析表明,牵引网电压和储能系统占空比分别影响了储能系统的内环和外环动态性能.提出了储能系统内环和外环变增益控制策略,消除了上述两变量对系统动态性能的影响.仿真和实验结果验证了所提出的控制策略的有效性.Using super capacitor to store regenerative braking energy of train can achieve good energy efficiency and voltage regulation in urban rail transit. This paper analyzes characteristics of traction power supply systems,train,bidirectional DC / DC converter and the super capacitor,thereby establishing the model of super capacitor energy storage system. According to the established model,the influence of traction network voltage and duty cycle on dynamic performance of the system is discussed. Analyses show that the traction network voltage and duty cycle respectively affects the inner and outer dynamic performance of energy storage system. Then variable gain control strategy of inner loop and outer loop for energy storage system is proposed,eliminating the influence of the above two variables on dynamic performance of system. Finally,simulation and experimental results show the effectiveness of the proposed control strategy.

关 键 词：超级电容 控制策略 动态性能 变增益 

分 类 号：TM922.3[电气工程—电力电子与电力传动]