Multiobjective Load Management Techniques for Electrified Transportation Systems

This paper develops a methodology for managing electric-train-loads through the adjustment of their trajectories in the 3-dimensional space of speed, time and distance. The management process involves reconciling two conflicting objectives-the total energy, W, and the total time, T, required to complete each journey. A multiobjective approach is used. For a given hardware configuration, the approach generates a continuous curve (the "noninferior surface") that represents the best posible tradeoffs between W and T. By staying on this curve one can achieve energy savings with the least possible increase in T, and vice versa.