• 제목/요약/키워드: Regenerative break energy

검색결과 4건 처리시간 0.026초

전압형 컨버터와 EDLC의 협조 제어에 의한 직류전기철도 회생에너지 이용률 및 전압 제어 능력 향상 (Improving Regenerative Break Energy Efficiency and Voltage Regulation Capability of DC Electric Railway by Coordination of VSC and EDLC)

  • 전고운;유형준;박재세
    • 전기학회논문지
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    • 제64권1호
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    • pp.176-181
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    • 2015
  • In the DC electric railway system, the effective use of regenerative break energy is an important issue. Since regenerative break energy causes voltage rise or drop in the system, it should be also solved effectively. To solve the problems, applying electric double layer capacitor (EDLC) or voltage source converter (VSC) to the DC electric railway system has been studying. In this paper, the coordination of EDLC and VSC is proposed to solve the problem effectively with its coordinated control algorithm. The proposed method is tested to show its feasibility using Matlab/Simulink.

유압식 에너지 회생시스템의 성능평가 (Performance Evaluation for Hydraulic Type Energy Regenerative System)

  • 정동수;김형의;강이석
    • 한국자동차공학회논문집
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    • 제14권2호
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    • pp.136-144
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    • 2006
  • Vehicles usually have 3 types of speed pattern like acceleration, travel, and deceleration. It requires much driving energy from engine while accelerating, preserves much kinetic energy by inertia moment at travel speed, and releases the kinetic energy to the air while decelerating by the break system. If we accumulate the kinetic energy while decelerating and reuse the energy at the accelerating stage, then it can elevate the fuel efficiency, reduce the emission and improve the motive power. This paper proposes a hydraulic type energy regenerative system which converts the kinetic energy into hydraulic energy at the stage of deceleration and reuses it at the starting and accelerating stage of vehicles. The test equipment which has the field condition of city bus was prepared to evaluate the performance for energy regeneration. The test results show that both energy regeneration efficiency and fuel efficiency are improved significantly and the emission is reduced notably.

도시 철도용 사이리스터 듀얼 컨버터 시스템의 3병렬 운전 제어 기법에 관한 연구 (A Study on Three Parallel Operation Control Algorithm of Thyristor Dual Converter System for Urban Railway Substation)

  • 김성안;한성우;조윤현
    • 전기학회논문지
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    • 제66권2호
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    • pp.459-467
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    • 2017
  • An urban railway power substation consists of three thyristor dual converters. Two converters are connected to up and down trolley line to supply the electric energy or feed the regenerative energy back to the distribution. When the two converters break down, the remaining converter is used in an emergency. One thyristor dual converter system (TDCS) manages the energy of two or three railway stations. If the TDCS fails, the trains stop operating. To solve the problem, this paper proposes the three parallel operation control algorithm of thyristor dual converter system using the emergency converter. The broken TDCS can be replaced by the emergency converter in other TDCS. The effectiveness of this proposed control is verified by simulation.

마이크로프로세서를 이용한 영구자석형 동기전동기(PMSM) 제동력 확보 제어기 설계에 관한 연구 (A study on the Scheme of Extending Break Power Controller for Permanent Magnet Synchronous Motor(PMSM) using a Microprocessorr)

  • 나승권;김영욱;최기호;황락훈
    • 한국항행학회논문지
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    • 제17권5호
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    • pp.524-544
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    • 2013
  • 본 연구에서는 영구 자석형 동기전동기(PMSM)를 축소형의 견인시스템으로 각 전동기를 개별로 제어하는 1C1M방식으로 구축하였다. 전동기를 제동할 때 발생한 회생전력은 모두 활용하고 있으며 전기제동의 사용영역 확대에 발생한 회생전력을 모두 흡수할 수 있는 능력을 가진 가선이라고 가정한다. 영구 자석형 동기전동기(PMSM)의 제동력 확보를 위해 벡터제어 방법과 제어기와 속도 센서를 마미크로프로세서에 제어기를 적용 하였고, 전동기 에너지의 효율적 이용 등 회생 제동에 의한 제동력 확보와 전기 제동으로 정지하는 알고리즘을 적용하여 전동기 관성부하에 대한 시뮬레이션 및 실험결과를 제안하였다.