• Title, Summary, Keyword: Beatless control

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Development an Structure and Control Algorithm of Propulsion Control for Driving Railway Vehicle in Both AC and DC Power Supply Section (AC 및 DC 전력공급구간 운전을 위한 도시철도용 추진제어시스템의 구조 및 제어 알고리즘 개발)

  • Lee, Chang-Hee;Lee, Ju
    • The Transactions of the Korean Institute of Power Electronics
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    • v.24 no.2
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    • pp.84-91
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    • 2019
  • This study proposes a AC/DC railway vehicle control algorithm that enables simultaneous driving of AC and DC power supply sections. In the Seoul metropolitan region, trolley voltage for railway vehicle is divided into AC and DC power supplies. Therefore, AC/DC railway vehicle algorithm is essential for driving on the outskirts of the region. This study analyzes resonance and beat phenomena for simultaneously running in AC and DC power supply sections, and proposes a control algorithm for railway vehicles with the application of damping and beatless controls based on this analysis. The performance of the proposed algorithm is verified by simulation and analysis of actual driving results.

A Study of propulsion control algorithm of Tilting Train eXpress (틸팅 열차 추진시스템의 제어 알고리즘에 관한 연구)

  • Kim Hyung-Chul;Choi Jae-Ho
    • Proceedings of the KSR Conference
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    • pp.800-805
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    • 2005
  • In this study, control schemes are proposed for a propulsion system of TTX(Tilting Train eXpress). In developed traction converter, unity power factor control, compensation method of dc link voltage have been applied. Output current of converter contains harmonic ripple at twice input ac line frequency, which causes a ripple in the dc link voltage so that beatless control is developed in inverter system to reduce the pulsating torque current. This system is verified by the system modelling and prototype test.

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A Running and Transient state Test of VVVF Inverter using A Inertia Load in Electric car (관성부하를 이용한 전동차용 VVVF인버터의 모의주행 및 과도상태시험)

  • 정만규;정기찬;고영철;방이석;서광덕
    • Proceedings of the KIPE Conference
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    • pp.282-286
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    • 1999
  • This paper presents a vector control of parallel drive, a beatless control and a low switching PWM technique for the propulsion system of Electric car as transient state which are included interrupting line voltage, changing line voltage slowly, suddenly, regenerating light load and starting from backward running. Improved performance and a validation of proposed method is shown by the experimental results using a 1.65MVA IGBT VVVF inverter and inertia load equivalent to 160 tons electric cars through a running and transient state test.

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Development of AC Electric Vehicle Propulsion System (Converter/Inverter) using IPM Switching Device (IPM 스위칭 소자를 적용한 AC 전동차 추진제어장치 (Converter/Inverter) 개발)

  • Kno Ae-Sook;Kim Tae-Yun
    • The Transactions of the Korean Institute of Power Electronics
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    • v.10 no.3
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    • pp.233-240
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    • 2005
  • In this paper, AC electric vehicle propulsion system(Converter/Inverter) using high power semiconductor, IPM is proposed. 2-Parallel operation of two PWM converter is adopted for increasing capacity of system and the harmonic content is eliminated by the phase shaft between two PWM converters switching phase. VVVF inverter control is used a mixed control algorithm, where the vector control strategy at low speed region and slip-frequency control strategy at high speed region. The proposed propulsion system is verified by experimental results with a 1,350kW converter and 1,100kVA inverter with four 210kW traction motors.

Propulsion System(Motor-Block) for High-Speed Train using IGCT Device (IGCT 소자를 사용한 고속전철용 추진제어장치(MOTOR-BLOCK))

  • Cho Hyun-Wook;Kim Tae-Yun;Kno Ae-Sook;Jang Kyung-Hyun;Lee Sang-Jun;Choi Jong-Mook
    • Proceedings of the KSR Conference
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    • pp.665-670
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    • 2005
  • This paper introduces the propulsion system(Motor Block) stabilization test result for Korean High Speed Railway(HSR). The developed propulsion system using high power semiconductor, IGCT(Integrated Gate Commutated Thyristor) consists of two PWM converter and VVVF inverter. In this paper, overall configuration of propulsion system is briefly described and stabilization tests are made to verify the developed propulsion system. The presented test results shows beatless control method of inverter output current at the 200km/h and performance test of BCH.

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