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http://dx.doi.org/10.5762/KAIS.2020.21.6.170

A Evaluation of Emergency Braking Performance for Electro Mechanical Brake using Interior Permanent Magnet Synchronous Motor  

Baek, Seung-Koo (Advanced Railroad Vehicle Division, Korea Railroad Research Institute)
Oh, Hyuck-Keun (Advanced Railroad Vehicle Division, Korea Railroad Research Institute)
Park, Joon-Hyuk (Advanced Railroad Vehicle Division, Korea Railroad Research Institute)
Kim, Seog-Won (Advanced Railroad Vehicle Division, Korea Railroad Research Institute)
Kim, Sang-soo (Advanced Railroad Vehicle Division, Korea Railroad Research Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.6, 2020 , pp. 170-177 More about this Journal
Abstract
This study examined the clamping force control method and the braking performance test results of an electromechanical brake (EMB) using braking test equipment. Most of the studies related to EMBs have been carried out in the automotive field, dealing mainly with the static test results for various control methods. On the other hand, this study performed a dynamic performance evaluation. The three-phase interior permanent magnet synchronous motor (IPMSM) was applied to drive the actuator of the EMB, and the analysis was verified by JMAG(Ver. 18.0), which is finite element method (FEM) software. The current control, speed control, and position control were used for clamping force control of the EMB, and the maximum torque per ampere (MTPA) control was applied to the current controller for efficient control. The EMB's emergency braking deceleration performance was tested in the same way as conventional pneumatic brake systems when the wheel of a train rotates at 110 km/h, 230 km/h, and 300 km/h. The emergency braking time, with the wheel stopped completely at the maximum rotational speed, was approximately 73 seconds. The similarity of the braking time and deceleration pattern was verified through a comparison with the performance test results of the pneumatic brake system applied to the next generation high-speed railway vehicle (HEMU-430X).
Keywords
Interior-Permanent-Magnet-Synchronous-Motor(IPMSM); Maximum Torque Per Ampere(MTPA); Dynamo Test Equipment; Emergency Brake; Brake-By-Wire; Electro-Mechanical-Brake;
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