Predictive Set Point Modulation Charging of Autonomous Rail Transit Vehicles
Predictive Set Point Modulation Charging of Autonomous Rail Transit Vehicles
复制标题
自主轨道交通车辆的预测设定点调制充电
DOI：
10.3390/en13194992
复制
发表时间：
2020-09
期刊：
影响因子：
3.2
通讯作者：
Yu Zhang
中科院分区：
文献类型：
--
作者：
Hongtao Liao;Heng Li;Jun Peng;Yu Zhang
Autonomous rail transit (ART) vehicle is a new type of urban rail transportation, which has good development prospects. It is powered by onboard supercapacitors, which are charged at midway stations. It requires short charging time and fast charging speed. Usually, multiple chargers are used in parallel for charging. However, this will cause an overshoot phenomenon during charging, and the overshoot of multiple chargers will be superimposed on the supercapacitor, affecting the stability and life of both supercapacitors and chargers. In this paper, we propose a predictive set point modulation charging method, which can reduce the system’s overshoot and increase the reliability of the system. First, the state-space averaging method is used to establish the electronic physical model of the multicharger system. Secondly, a predictive set point modulation charging control method is designed, and the closed-loop model of the proposed charging system is developed using the buck diagram. The effectiveness of the proposed method is verified through extensive simulation and experiments. The experimental results show that compared with the classical design method, the proposed method can effectively suppress the current overshoot.
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