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A Study on the Firing Angle at the Mode Conversion to Improve the Output Characteristics of the Double Converter for Urban Railway DC Power Supply

도시철도 직류급전용 더블컨버터의 출력특성 향상을 위한 모드 변환 시 점호각 제어 연구

  • Seo, Seung-Sam (R&D Center, Busan Transportation Corporation) ;
  • Han, Sung-Woo (R&D Center, Busan Transportation Corporation) ;
  • Byun, Gi-Sig (Dept. of Control & Instrumentation, PuKyoung National University)
  • Received : 2015.07.14
  • Accepted : 2015.12.10
  • Published : 2015.12.31

Abstract

This paper suggest away to maintain constant power through trolley wire by transferring increased line voltage to the AC main line while changing the mode from Converter(Forward) to Inverter(Reverse) when the line voltage is increased due to regenerative power when the train stops, This paper suggests a Double Converter DC substation that can create regenerative power when the train stops reusable. We also proposed using a simulation tool, the optimal Thyrister firing angle that can minimize the undershoot and overshoot that occurs when transferring the mode from Converter to Inverter for quality improvement of DC voltage in the Double Converter in the DC substation from the Busan Urban Subway.

본 논문은 도시철도 전동차 정차 시에 발생하는 회생전력으로 인해 전차선 가선전압 상승 시에 Converter(Forward)에서 Inverter(Reverse)로 mode 변환하여 상승된 가선전압을 AC 모선으로 환류하여 전차선 전압을 일정하게 유지하고 전동차 정차 시에 발생하는 회생전력을 재사용할 수 있는 부산도시철도의 더블 컨버터 직류 변전설비를 제안하며 전차선 직류전압 품질향상을 위해 부산도시철도 더블 컨버터 직류 변전설비에서 발생하는 Converter/Inverter mode 변환 시의 undershoot와 overshoot를 최소화할 수 있는 최적의 사이리스터 점호각을 시뮬레이션을 통하여 제시하였다.

Keywords

References

  1. E.H. Song, B.H. Kwon (1990) A Current Source using the 12-Pulse Phase -Controlled Rectifier, The Transactions of the Korean Institute of Electrical Engineers, 39(6), 545-556.
  2. D.J. Perreaul, J.G. Kassakian (1995) Effects of firing angle imbalance on 12-Pulse, IEEE Transaction Power Electronics, 10(3), pp 257- 262. https://doi.org/10.1109/63.387989
  3. J.G. Kim, J.H. Kim, K.H. Cho, C.Y. Won, et al. (2007) Regenerative inverter system for DC traction substation with voltage drop compensation mode, The Transaction of the Korean Institute of Power Electronics, pp. 213-220.
  4. S.W. Han (2014) Development of algorithm for improving efficiency of dual converter power supply system of city railway, Master Thesis, Donga University.

Cited by

  1. A Studies for Sequential Mode Change Control Algorithm of the Parallel Dual Converter of Using Thyristor for Supplying the Urban Railway DC Power vol.65, pp.3, 2016, https://doi.org/10.5370/KIEE.2016.65.3.511
  2. A Study on Control Algorithm of Thyristor Dual Converter System for DC Electricity Supply of Urban Railway vol.14, pp.2, 2019, https://doi.org/10.1007/s42835-018-00057-x