| 摘要 |
PURPOSE: A power supply method, an apparatus and a power transmission apparatus by segmentation of a feeding line are provided to efficiently supply power by changing the length of a power supplying segment according to driving position for a train. CONSTITUTION: A train sensor(122,134,126) senses the position of a train running on a power supplying segment(112,114,116). A control unit(130) controls switching of N power supplying segments according the sensing result of a train sensor. The power supplying segment includes a power feeding line wound around the top of the power supplying core. An inverter unit(140) includes N inverters of for supplying power to the N power supplying segments. [Reference numerals] (112) First power feed segment; (114) Second power feed segment; (116) Third power feed segment; (130) Control unit; (140) Inverter unit; (150) DC power; (AA) Power feed line; (BB) Train rail |
