Abstract
Mechanical brakes are often used by an electric train. It has a few problems like response speed, coefficient of friction, maintenance cost and so on. Therefore, methods using regenerative brakes actively are required. In this paper, the authors propose pure electric brakes which mean ordinary brakes by only the regenerative brakes without any mechanical brakes at high speed. DC-electrification system with regenerative substations can regenerate energies to commercial power system. And a train can use the full regenerative braking force. The authors furthermore evaluate the effects running time and energies with regenerative substations in proposal method.
