| 摘要 |
A means for controlling a vehicle (e.g. a railway locomotive) driven by energy received intermittently from a source such as a catenary or third rail comprises a power storage system 7, an inverter 4 and a semiconductor switch 6. A DC voltage detecting means 9 measures the DC-side voltage of the inverter to determine whether the intermittent source is connected or not, and the charging or discharging of the power storage system through the inverter is controlled accordingly using the semiconductor switch. In this way the input voltage of the inverter is maintained within a predetermined operable range. A secondary battery DC voltage detector 11 may be provided to determine the terminal voltage of the power storage system. A charge/discharge control unit 13, inverter control unit 14, power storage control unit 16 and information transmission 17 means may also be provided. |
