Thermal Analysis and Temperature Characteristics of a Braking Resistor for High-speed Trains for Changes in the Braking Current

被引：4
作者：
Lee, Dae-Dong [1 ]
Kang, Hyun-Il [1 ]
Shim, Jae-Myung [1 ]
机构：
[1] Hanbat Natl Univ, Dept Elect Engn, Taejon 305719, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2015年 / 67卷 / 06期
关键词：
Braking resistor; Dynamic braking; Heat transfer; Thermal analysis;
D O I：
10.3938/jkps.67.975
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Electric brake systems are used in high-speed trains to brake trains by converting the kinetic energy of a railway vehicle to electric energy. The electric brake system consists of a regenerative braking system and a dynamic braking system. When the electric energy generated during the dynamic braking process is changed to heat through the braking resistor, the braking resistor can overheat; thus, failures can occur to the motor block. In this paper, a braking resistor for a high-speed train was used to perform thermal analyses and tests, and the results were analyzed. The analyzed data were used to estimate the dependence of the brake currents and the temperature rises on speed changes up to 300 km/h, at which a test could not be performed.
引用
收藏
页码：975 / 979
页数：5
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