A Study on the Propulsion System Temperature Characteristic of High-speed Electrical Multiple Unit

초록

The next generation high-speed train system, HEMU-430X, has been developed in Korea since 2007. Objectives of HEMU-430X is development of next generation high-speed electric multiple unit with maximum operation speed 370km/h and maximum test speed 430km/h, energy efficiently and environment friendly. At present, the trial test run on a high-speed line is in progress. The propulsion system consists of a main transformer, converter/inverter and traction motors. Traction and regeneration braking forces come from the propulsion system. As well as the running performance of the propulsion system, the temperature characteristic is also important to guarantee high-speed train performance.<br> This paper presents a test method and test results to evaluate the running performance and temperature characteristic of HEMU-430X. For these, temperature sensors are installed on the main transformer and traction motors. Considering running conditions during the test trial run, temperature characteristic data of the propulsion is collected. Also train speed and running pattern, etc., are collected.<br>