| 摘要 |
PURPOSE:To prevent a train composed of a plurality of electric railcars coupled to be driven by one or more inverters from slipping or skidding by coupling the railcars by inverters and drive control means of the respective railcars via a communication network during a period in which the railcars pass a curved part, reducing torques of motors of the respective railcars and traveling at a constant speed. CONSTITUTION:A train is composed by coupling four electric railcars having AC motors 8a, 8b-11a, 11b to be driven by inverters 4-7. A communication network 3 is coupled between the inverters 4-7 of the railcars and cab controllers. Currents and speeds of the railcars are respectively detected by current detectors 15-19 and speed detectors 12a-15b, and input to the network 3. A cab controller 21 maintains a constant speed drive in which torques of the motors are reduced according to an operation command to be applied by a driver from a cab operating unit 20 until g head railcar enters bent part and he tail railcar passes through the part, and a limit speed command responsive to a.counted amount of the part is applied. suppress squeak. |
