A STUDY ON TRACTION PERFORMANCE OF HIGH SPEED TRAIN

초록

KHST (350km/h) has been developed for last 6 years to satisfy the need and now is under trial test. KHST composed of 2 power cars, 2 motorized car and 3 trailer cars. KRRI (Korea Railroad Research Institute) developed a measurement system for on-line test and evaluation of traction performances of KHST. The measurement system can measure effectively vast and various signals such as torque, velocity, voltage and current, and the system is composed of software part and hardware part. Perfect interface between multi-users is possible. A new method to measure temperature was applied to the measurement system. By using the system, measurement and evaluation of the performance characteristics of motors in KHST was conducted during test running. The measured results for the temperature characteristics of electric motors verified that the measurement system is accurate and reliable. In this paper, we described the performance characteristics of domestic traction system developed through G7 project. We could measure the performances and the temperature characteristics of traction system during test running by the developed on-line instrumentation system. After we save the input real-time data from each signal of KHST through the network line, we can acquire necessary information through a post-processing program. Through an analysis program, we could verify the motor block characteristics and the traction performances of KHST."