Sunday , September 20 2020

Temperature Characteristics Analysis of Braking Resistor for High Speed Train

Dae-Dong LEE1, Jae Myung SHIM2, Dong-Seok HYUN1
1 Department of Electrical Engineering, Hanyang University,
17, Haengdang-dong, Seongdong-gu, Seoul, 133-791, Republic of Korea,; (Corresponding author)
2 Department of Electrical Engineering, Hanbat National University,
San 16-1, Duckmyoung-dong, Yeseong-gu, Daejeon, 305-719, Republic of Korea

Abstract: Dynamic braking, which is frequently used in high speed trains, is a function and device that provides braking force using the electricity that is generated from a traction electric motor, and also dissipates heat from the braking resistor that converts the current from the traction electric motor into heat. The heat from the braking resistor, which is located in the motor block of a high speed train, damages the resistor wires and induces cracks in the insulators that affect the dynamic choppers, traction inverters, and electric motors during dynamic braking, and makes it difficult to control driving during acceleration or deceleration. In this study, the motor block braking resistor, which was recently suggested to compensate for these problems, was designed, and experiments were performed on heat analysis simulation and temperature increase. Further field tests were performed to verify the advantages of the motor block braking resistor.

Keywords: Braking resistor, field test, high speed train, motor block, temperature increase test, total heat flux.

>>Full Text
Dae-Dong LEE, Jae Myung SHIM, Dong-Seok HYUN, Temperature Characteristics Analysis of Braking Resistor for High Speed Train, Studies in Informatics and Control, ISSN 1220-1766, vol. 22 (1), pp. 25-32, 2013.