대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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- Pages.1643-1645
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- 2005
전동차 조합시험을 위한 부하 시뮬레이터에 관한 연구
A Study on Load Simulator for Traction system combined testing
- Kim, Gil-Dong (Korea Railroad Research Institute(KRRI)) ;
- Lee, Han-Min (Korea Railroad Research Institute(KRRI)) ;
- Oh, Seh-Chan (Korea Railroad Research Institute(KRRI)) ;
- Pak, Sung-Hyuk (Korea Railroad Research Institute(KRRI)) ;
- Kim, Jong-Dae (Korea Railroad Research Institute(KRRI))
- 발행 : 2005.07.18
초록
A newly-built inverter has to undergo a series of stress tests in the final stage of production line. This can be achieved by connecting it to a dynamometer consisting of a three-phase machine joined by a rigid shaft to a DC load machine. The latter is controlled to create some specific load characteristic needed for the test. In this paper a test method is proposed, in which no mechanical equipment is needed. The suggested test stand consists only of a inverter to be tested and a simulator converter. Both devices are connected back- to-back on the AC-side via smoothing reactors. The simulator operates in real-time as an equivalent load circuit, so that the device under test will only notice the behaviour of a three-phase machine under consideration of the load. In odor to wove rightness of the suggested test method, the simulation and actural experiment rallied out emulation for a 2.2kW induction motor.
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