| 摘要 |
<p>PURPOSE:To suppress fluctuation of train speed by feeding the thrust coil of a train, which makes transition on the feeder section from upstream substation to downstream substation, with power in parallel from substations on the opposite sides thereby increasing the feeder current on the downstream side by an amount corresponding to the decrease on the upstream side. CONSTITUTION:Power is fed from feeders 4, 3 of an upstream substation 1 and a downstream substation 2 to the thrust coil of a train 8 traveling in the direction of an arrow, respectively, through a plurality of sections 7. When a train sensor 21 and a position sensor 22, disposed along a rail, detect that the train 8 has entered into a transit section 7n, a transition control section 105 provides a control switching command to the speed control sections 102, 2O2 in the substations 1, 2 Furthermore, a current restriction command is fed to the current distribution control section 103 in the substation 1 and, at the same time, a coil section switch 6 is closed to restrict the feeder current IA to be fed from the substation 1 thus feeding a restricted current IB from the substation 2. According to the constitution, substation transition control is carried out easily and the border of feeder can be set arbitrarily.</p> |
