基于再生制动能利用的发车间隔优化模型

本文基于单车节能操纵,以降低全线总能耗为目标,建立了发车间隔节能优化模型。该模型在现有区间运行时分的基础上,考虑单列车节能及其在不同站间的运行速度曲线,得到列车区间牵引能耗,通过重叠时间确定有效利用的再生制动能,并且将多车总能耗最低转化为求解全线能耗最低问题。以全线能耗最低为目标,采用遗传算法,寻求最优发车间隔。仿真案例验证了优化发车间隔的节能效果。

Regenerative braking energy based optimization model for departure interval time in subway system

We establish a model for energy optimization of train departure interval time based on single train energy saving operation with the reduction of the total energy consumption on the whole line as a goal. The model can calculate energy consumption of train traction based on running time division at the existing lines combined with energy saving of a single train and running speed curves among different stations. We determine effective regenerative braking energy by time overlap and convert total energy consumption minimum of multi car into energy consumption minimum of the whole line. We derive optimal departure interval time with genetic algorithm and energy consumption minimum of the whole line as a goal. Simulation cases demonstrate energy saving effect of optimized departure time interval.