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    • 7. 发明专利
    • Charging control method in feeder voltage compensator for electric railways
    • 电力铁路馈电电压补偿器充电控制方法
    • JP2010252617A
    • 2010-11-04
    • JP2009171755
    • 2009-07-23
    • Meidensha Corp株式会社明電舎
    • HIRAMATSU MASANORI
    • H02J7/00H02J7/04
    • B60L3/0046B60L7/08B60L7/18B60L9/18B60L11/005B60L11/1801B60L2200/26B60L2210/12B60L2210/14B60L2240/527B60L2240/529B60L2240/547B60L2240/549Y02T10/7005Y02T10/7022Y02T10/7225Y02T10/7233
    • PROBLEM TO BE SOLVED: To prevent a feeder failure due to overvoltage and charge an electric double-layer capacitor up to the maximum possible level. SOLUTION: In the method of charge control, a current command value obtained by inputting a current command value output from a PI amplifier 23 to a limiter 24 to be controlled is compared with a new current command value refined by a filter 34 for refining a current command value in consideration of internal resistance of an electric double-layer capacitor using a comparator 32, and outputs a smaller current command value as a charging current command value. A deviation output between the charging current command value output from the comparator 32 and a detected value of the charging current value of the electric double-layer capacitor is obtained. The output is input to an amplifier 28 for controlling a duty ratio through a PI amplifier 26 after obtaining a PI control output for determining a duty of a bidirectional chopper means. A PWM signal corresponding to the duty ratio is created in a CMP creation part 29 from the amplifier 28. From the PWM signal and a condition signal when regenerative electric power is generated, a gate signal is obtained. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了防止由于过电压引起的馈线故障,并将电双层电容器充电到最大可能的水平。 解决方案:在充电控制方法中,通过将从PI放大器23输出的电流指令值输入到要控制的限制器24而获得的电流指令值与由滤波器34精化的新的电流指令值进行比较, 考虑到使用比较器32的双电层电容器的内部电阻来改善电流指令值,并且输出较小的电流指令值作为充电电流指令值。 获得从比较器32输出的充电电流指令值与双电层电容器的充电电流值的检测值之间的偏差输出。 输出被输入到放大器28,用于在获得用于确定双向斩波器装置的占空比的PI控制输出之后通过PI放大器26来控制占空比。 在放大器28的CMP生成部29中产生与占空比对应的PWM信号。从PWM信号和再生电力产生时的条件信号,获得门信号。 版权所有(C)2011,JPO&INPIT