Online Power Management Method for Fuel Cell/Supercapacitor Hybrid Power Tram Based on Equivalent Power Consumption

To realize the online control of fuel cell/supercapacitor hybrid power system, a new method called equivalent power consumption (EPC) is proposed in this article. This method proposes a new equivalent coefficient, which optimizes the calculation accuracy of electro-hydrogen conversion of the hybrid power system. To further realize the optimal power distribution of the hybrid system, the cost function of the entire hybrid system is constructed and solved. By using the optimal analytical solution of the hybrid system, the online control is finally realized. The test results of the RT-LAB platform show that the proposed method has significant advantages in both power consumption and fluctuation rate compared with commonly used methods. In addition, this method has also been further improved to fit the operation of trams on actual long-distance routes, whose results demonstrates the effectiveness of the proposed method and the stable operation under complex conditions.