摘要
超级电容型再生能制动能量回收技术,吸收车辆制动时剩余能量,并反馈至牵引网络中。传统控制策略采用基于PI控制的双向DC/DC变换器,但容易造成超级电容的过充、过放情况的发生,未考虑超级电容储能状态,因此效率较低。提出一种基于模糊PI控制的双向DC/DC变换器控制策略,引入超级电容实际储能情况,提高了系统效率。
The technique of recovery regenerative energy is based on stationary electrochemical double layer capacitors energy storage systems, can absorb the residual energy when the metro brakes, and revert to the traction network. The traditional control strategy adopts the bidirectional DC / DC converter based on PI control, but it is easy to cause the overcharge and over discharge of the super capacitor, and the efficiency is low without considering the status of super capacitor energy storage. In this paper bidirectional DC/DC converter is proposed based on fuzzy PI control strategy, which introduces the super capacitor actual energy storage situation and hence can improve system efficiency.
出处
《公路》
北大核心
2017年第5期297-301,共5页
Highway
