Study on capacity estimation of the TTX energy storage system considering the regenerative energy and the neutral section

초록

Electric railway is in charge of a representative transportation and positions of high-speed trains, such as the KTX, which is a growing trend. Among these, development of new vehicle's technologies and expansion of rail for speed-up contribute to reducing the running time. Despite these improvements of technologies, the electric railway system still has the fundamental problems. Out of these, the neutral section is the main factor increasing the running time. When the train passes on the neutral section, it runs to coasting mode after shuts off the Main Circuit Breaker (MCB). In this paper, we measured and got data when the tilting train named 'Hanbit 200' runs in Jungang line (from Jecheon to Yeongju). Then we analyzed the speed characteristics about before and after entering on the neutral section. As a result, it causes the train speed reduction. To solve this problem, this paper proposes energy storage system installed in vehicles. It improves the speed reduction on the neutral section using the energy stored in energy storage system. ICIC International © 2012.

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