• Title/Summary/Keyword: Emergency Diesel Generator

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An Experimental Study upon Modeling and Control of Coupled Engine and Generator System (엔진-발전기 시스템 모델링 및 제어특성에 관한 실험적 연구)

  • 송승호;정세종;오정훈;함윤영;최용각;이광희
    • Transactions of the Korean Society of Automotive Engineers
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    • v.11 no.5
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    • pp.163-169
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    • 2003
  • Modeling of engine-generator system and its control responses are investigated using high performance generator controller. The nonlinear engine is modeled using mean torque production model based on experimental engine map. In case of diesel engine. the amount of injected fief is decided by engine controller depending on the APS(Acceleration Position Sensor) value. An electromechanical generator model contains electrical circuits and moment of inertia. The generator controller maximizes the performance of generator using decoupling and linearized current feedback control. The generator control system consists of 3-phase IGBT inverter and controller board based on 32 bit floating point DSP. Field oriented control algorithm with digital current feedback control at 10kHz sampling enabled high performance torque and speed control of induction machine. Not only the steady state but also the transient state responses can be evaluated through a batch test of the engine generator system. Developed engine and generator modeling and control can be utilized in various applications such as Series Hybrid Electric Vehicle(SHEV), engine-generator for emergency, and other hybrid generation systems.

The Design of a I/O Circuits for Driving and Monitoring of the Diesel Generator for Emergency (비상용 디젤 발전기 구동 및 모니터링을 위한 입출력 회로 설계)

  • Joo, Jae-Hun;Kim, Jin-Ae;Choi, Jung-Keyng
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.13 no.8
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    • pp.1491-1496
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    • 2009
  • This paper presents an digital based input/output interface circuit for controlling and monitoring the Diesel Engine Generator for emergency. In order to monitor and control of the Emergency Diesel Engine Generator, controlling and monitoring circuits need 5 analog input channels, 2 pick-up coil measuring circuits, 10 digital input channels containing Broken Wire Detect function, and 7 relay control signal output channels. This system performs signal processing of input signal taking advantage of simple filter circuit, photo-coupler and comparator circuit at analog input parts, and output signals for main relay is designed acting by double control, so it prevents malfunction completely. And it improves accuracy of speed input signal by applying digital circuit that processes rick-up coil signal.

The Design of a I/O Interface Circuits for the Signal Driver of the Engine Control Relays and the Output Signal Monitoring of Diesel Generator (디젤 발전기 출력 신호의 모니터링 및 엔진제어 릴레이 구동을 위한 입출력 인터페이스 회로 설계)

  • Joo, Jae-hun;Kim, Jin-ae;Choi, Jung-Keyng
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.05a
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    • pp.547-550
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    • 2009
  • This paper presents a digital based input/output interface circuit for controlling and monitoring the Diesel Engine Generator for Emergency. In order to monitor and control of the Emergency Diesel Engine Generator, controlling and monitoring circuits need 5 analog input channels, 2 pick-up coil measuring circuits, 10 digital input channels containing Broken Wire Detect function, and 7 relay control signal output channels. This system performs signal processing of input signal taking advantage of simple filter circuit, photo-coupler and comparator circuit at analog input parts, and output signals for main relay is designed acting by double control, so it prevents malfunction completely. And it improves accuracy of speed input signal by applying digital circuit that processes pick-up coil signal.

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