2023 年 64 巻 1 号 p. 49-55
Studies have been carried out on rail brakes applying linear induction motor technology. This brake is capable of generating braking force without contact. In addition to the aspect of non-contact brakes, no onboard power supply for energizing this brake is required by using dynamic braking. This dynamic braking is performed with an excitation inverter, however there is a need to have a method which does not use an excitation inverter to reduce cost. Therefore, the authors devised an inverter-less excitation method using the self-excitation phenomenon of induction generators and tested it on a track-wheel testing machine. It was clarified that the method devised is useful as a low-cost excitation system.
