• Title/Summary/Keyword: Boiler control

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Expert System for ABC Tuning of Once-Through Bboiler

  • Matsumura, S.;Kojima, Y.;Tozaki, T.;Shirasaka, Y.;Suzuki, M.
    • 제어로봇시스템학회:학술대회논문집
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    • 1989.10a
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    • pp.744-748
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    • 1989
  • A newly developed Expert System (ES) for the tuning of thermal power plant control equipment is described. The system is furnished with the rules for controller tuning which were obtained by analysis and arranging the data and knowledge from the experts or tuning records. Based on these rules, automatic tuning or setting of the control parameters is performed in real-time base. The performance of the test equipment, a combination of ES and a boiler simulator, was examined in the automatic tuning test for steam pressure, steam temperature, and load controllers of a constant-pressure once-through boiler model. It was confirmed from the test results that the system is quite promising for future application to actual plants, since the tuning results obtained by the proposed system were similar to those by tuning experts.

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Apparatus for Measuring Fan Stall of Boiler for Power Station (화력발전용 보일러의 맥동 측정 장치)

  • Cho, Hyun-Seob
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.3
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    • pp.1681-1684
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    • 2014
  • In this paper, in the ventilation system of coal-fired power boilers can measure in real time the fan stall mechanism is all about. The fan stall guard system of boiler airing system of the class of 500MW capacity to protect fan. But because confidence is loosed and operation is influenced by frequent fault of fan stall guard system, confidence is improved by substituting DCS Logic for it.

Dynamics Modeling and Operation Simulation for the Simulation of Abrupt Faults in the Boiler Drum Level Control System of a Fossile Power Plant (돌발성 이벤트 형태의 고장 시뮬레이션을 위한 화력발전소 보일러 드럼 수위 제어 계통의 다이나믹스 모델링 및 운전 시뮬레이션)

  • Kim, Jeong-Geun;Kim, Jae-Hwa;Jang, Tae-Gyu
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.51 no.2
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    • pp.59-68
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    • 2002
  • This Paper presents the dynmics modeling and the operation simulation of the 500 MW drum-type boiler and its control system hosted in the Boryung Power Plant unit #1 and #2. The fidelity of the modeling and the operation simulation is well verified by their agreement with the actual data obtained form the plant operation. As a plant signal generator for the various operation patterns and fault situations, the simulation environment will be utilized to develope the fault detecting signal processing algorithms.

A Design of the Boiler-Turbine Controller Using Neural Adaptive Control Schemes (신경망 적응 제어를 이용한 보일러-터빈 제어시스템 설계)

  • Lee, Sun-Ho;Kim, Gwan-Soo;Lee, Byeng-Gi;Lee, Soon-Young
    • Proceedings of the KIEE Conference
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    • 2000.07d
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    • pp.2455-2457
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    • 2000
  • In this paper, it is proposed a neural adaptve control algorithm for boiler-turbine system. Control inputs are constructed using RBF Neural networks and variable structure inputs are added to improve the robustness. This proposed algorithm does not need the information about parameters and can assure the robustness under the output disturbance and parameter perturbations. The results of computer simulations is presented to verify the efficiency of the proposed algorithm.

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Combustion Characteristics of Heavy Fuel Oil-water Emulsion

  • Kim Houng-Soo
    • Journal of Advanced Marine Engineering and Technology
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    • v.30 no.1
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    • pp.88-92
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    • 2006
  • This study is intended to check the flame temperature to raise in burning grade C heavy fuel oil and emulsion fuel oil in a boiler and to measure the concentration of Dry Shoot(DS) and Soluble Organic Fraction(SOF) after collecting the Particulate Matters (PM). The flames temperature in boiler was measured by burning grade C heavy oil and oil-water emulsion (C heavy oil $70\%\;and\;30\%$ of water) Combustion characteristics of two fuels was also compared by trapping particulate matters (PM) in exhaust gas and measuring the generated quantities of DS and SOF in fuel gas.

The Development of Feed-Water Flow Controller of Boiler Feed-Water Pump in 500MW Class Coal-Fired Power Plant (500MW급 석탄화력발전소 보일러 급수펌프 유량 제어기 개발)

  • Lim, Geon-Pyo;Choi, In-Kyu;Park, Doo-Yong;Jeong, Tae-Won;Kim, Gun-Jung
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.59 no.9
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    • pp.1663-1672
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    • 2010
  • The boiler feed-water pump controllers which can be applied to 500MW class coal fired power plants was developed. The validity of the developed controllers was shown via the applied test result in a power plant. It is expected that the developed controllers are used to retrofit the existing controllers that have surpassed their expected service life and have limited spare parts, and contributes to the stable operation of plants. Based on the collected data and analysis, new control schemes were developed and implemented during the overhaul period in the new control systems. During normal operation, feed water could be supplied to the boiler with the capability of the 1600t/h flow without any problems in automatic mode of controllers. In this study, the feed-water pump controllers were developed successfully. In addition, it is expected that the developed controllers can make the plant operation more stable and can be applied to a lot of power plants.

Auto-Bending Manufacturing System for Boiler Tubes (보일러 튜브 자동벤딩 생산시스템 개발)

  • Lee, Hyun-Soo;Kang, Moon-Hyun;Park, Jun-Kon;Hur, Kwan;Sung, Joon-Suk;Heo, Wang-Soon
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.04a
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    • pp.450-454
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    • 1997
  • This system is the automatic boiler tube bending equipment which has four heads for bending the tube and the carriage for moving the tube. The system consists of two frames for transporting each moving parts, high-frequency heating equipment for heating the tube in hot bending, control panel for inputting the job data operating, remote control unit for concetration and distribution of input/output, and the monitoring system which can establish unmanned operationby receiving the bending job data via LAN form a design teamwhich produces the job data and schedule based on master production plan and diagnoses bending data change, input, whole system status, and system malfunctions. By employing this system, 30% of production improvement was achieved was achieved comparing to the existing bending system.

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FPGA application for wireless monitoring in power plant

  • Kumar, Adesh;Bansal, Kamal;Kumar, Deepak;Devrari, Aakanksha;Kumar, Roushan;Mani, Prashant
    • Nuclear Engineering and Technology
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    • v.53 no.4
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    • pp.1167-1175
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    • 2021
  • The process of automation and monitoring in industrial control system involves the use of many types of sensors. A programmable logic controller plays an important role in the automation of the different processes in the power plant system. The major control units are boiler for temperature and pressure, turbine for speed of motor, generator for voltage, conveyer belt for fuel. The power plant units are controlled using microcontrollers and PLCs, but FPGA can be the feasible solution. The paper focused on the design and simulation of hardware chip to monitor boiler, turbine, generator and conveyer belt. The hardware chip of the plant is designed in Xilinx Vivado Simulator 17.4 software using VHDL programming. The methodology includes VHDL code design, simulation, verification and testing on Virtex-5 FPGA hardware. The system has four independent buzzers used to indicate the status of the boiler, generator, turbine motor and conveyer belt in on/off conditions respectively. The GSM is used to display corresponding message on the mobile to know the status of the device in on/off condition. The system is very much helpful for the industries working on plant automation with FPGA hardware integration.