Regenerative braking technology has been widely used in metro train control. Improving the utilization of regenerative braking energy (RBE) can reduce the energy consumption of metro transit system. A novel train trajectory optimization method is proposed, in which control regimes coasting and maximum acceleration (CO-MA) are inserted according to the substation power flow. MA regime is inserted when the substation power is negative, which means there is REB can be used. CO regime is inserted to connect the trajectory and adjust the runtime. Improving the utilization of RBE according to the substation power flow makes the control optimization of trains independent, which can avoid the complex cooperation of multi-train control. A case study based on Guangzhou subway line is studied, and the results show that the proposed method can improve the utilization of RBE and reduce substation energy consumption efficiently.
Energy Saving in Metro Transit Substation through Train Trajectory Optimization
2019-10-01
409068 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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