混合型再生制动储能装置在地铁中的应用

Application of the Hybrid Regenerative Braking Energy Storage Device in Metro

地铁运行区间距离短,启动、制动频繁,其制动时会产生大量的再生制动能量。而传统的电阻能耗型制动不能充分利用再生制动能量,造成能量浪费,因此,提出将超级电容和电阻混合型储能装置应用于地铁的方案,并讨论了装置的构成及其控制策略。最后,针对所提方案建立了基于Matlab/Simulink的仿真模型,并根据地铁运行特性进行了仿真实验。仿真结果表明,所提方案可以有效地回收再生制动能量,同时能稳定直流牵引网的电压。

The urban rail transit is characterized with short operation distance between adjacent stations,which results in a huge regenerative braking energy produced in the frequent starting and braking process.A great energy waste will arise for the traditional energy consumption braking due to the fact that it fails to make full use of regenerative braking energy.In view of this current situation,a scheme has thus been proposed of the application of the super capacitor and resistor hybrid energy storage device to the subway,followed by a discussion of the structure of the device and its control strategies.Finally,a simulation model based on Matlab/Simulink has been established according to the proposed scheme,and a simulation experiment has been carried out according to the subway operating characteristics.The simulation results show that the proposed method can effectively recycle the regenerative braking energy,with the DC traction network voltage stabilized.