Carbon-reducing Train Rescheduling Method for Urban Railway Systems considering the Grid with Wind Power Supply

Nowadays, carbon emission reduction has been given the priority in most of the countries around the world to save the mankind and our planet, while transport sector and energy sector are both still with high carbon emission. With the development of the intelligent transportation systems, smart grid technologies and renewable energy integration, the opportunity for the coordination of systems can be achieved. This paper proposes a linear programming model to reschedule the train timetable, where the urban railway system and power system with wind power supply are coordinated to minimize the carbon emission. In the paper, a general railway system with IEEE 30-bus system is adopted in the case studies. The running time of the train for each inter-station section can be rescheduled, and the optimal output of each power plants can also be given after the optimization. The optimal results show that by coordinating the railway system and power system, the energy consumption and carbon emission of the train operation can be reduced by 12.32% and 12.65% respectively when compared with the original solution.