| 摘要 |
PROBLEM TO BE SOLVED: To input/output the power of an energy storage device to/from a diver becoming the load in accordance with operation of a train through a simple arrangement without using a reversible converter, and to control storage of power between a secondary battery and a capacitor. SOLUTION: The energy storage device 1 having a regenerative brake function in AC motor control through an inverter or DC motor control through a chopper and connecting the energy storage device in parallel between the current collector and the train controller of an electric vehicle running between respective stations of a predetermined route length in accordance with predetermined running characteristics is constituted by connecting an electric double layer capacitor 3 and a secondary battery 2 in parallel. The electric double layer capacitor 3 has an equivalent internal resistance Rc not larger than one half of the equivalent internal resistance Rb of the secondary battery 2, and has a capacity Cc capable of storing at least the maximum power out of respective powers required for running between respective stations. The secondary battery 2 has a capacity Cb capable of storing the power required for running the predetermined route length. COPYRIGHT: (C)2008,JPO&INPIT
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