Engineering nonlinearity characteristic compensation for commercial steam turbine control valve using linked MARS code and Matlab Simulink

Halimi, Burhanuddin; Suh, Kune Y.

doi:10.1016/j.nucengdes.2011.12.014

Cited by 13 publications

(2 citation statements)

References 6 publications

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“…The stable control processes of main propulsion turbine, which are reflected by the accurate changes of fluid energy and flow, depend on the accurate movement of the main control valve. The working flow of the main control valve can be calculated as follows [8,9]:…”

Section: Flow Characteristics For Main Control Valvementioning

confidence: 99%

Modeling and Simulation of Main Control Valve Mechanism of LNG Ship Steam Turbine

Cao

2014

TOMEJ

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A mathematical model and simulation analysis on main control valve mechanism of LNG ship steam turbine are carried out. A reasonable modeling division of main control valve mechanism is achieved in accordance with the idea of modular modeling, and all the models are established respectively. The modeling division includes cam lifting mechanism, oil actuator and double-valve body. The state space equations are used successfully to describe the servo system of main hydraulic valves and to reveal their dynamic process. Finally, the simulation modules are combined according to the structure and function of main control valve mechanism in Matlab/Simulink environment. By comparing experimental data and calculated data, the simulation results meet the accuracy requirements.

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Section: Flow Characteristics For Main Control Valvementioning

confidence: 99%

Modeling and Simulation of Main Control Valve Mechanism of LNG Ship Steam Turbine

Cao

2014

TOMEJ

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“…Research has also been conducted by Shaoshih et al to analyze single turbine valve closure [17] and Ling et al [18] who develop an incipient fault diagnosis of the limit switch. Research to determine the control valve nonlinear characteristic using MARS was conducted by Halimi et al [19]. Specifically, Bryan et al [20] studied for exploiting nonsmooth fold bifurcations in the design of ultra-fast and robust, resettable, electromechanical limit switches.…”

Section: Introductionmentioning

confidence: 99%

Automatic limit switch calibrator for control valve at steam turbine of a geothermal power plant

et al. 2021

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Measurement of fluid level in steam valves should require precise values. The instrument designed in this article is used to find out how precise the limit switch is used as an indicator control valve at certain points. The measurement technique will be implemented on a control valve on the geothermal power plant. This device is using the Arduino Due board as a data processor and modified the data signal of the vernier caliper to measure the valve opening. The TFT LCD layer is used to display the measurement and calibration results. The test results of this device indicate that this device has an accuracy level of more than 99%.

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Mechanism research on active power fluctuation caused by steam turbine valve test

Wang

Zhong

et al. 2018

Electr Eng

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Engineering nonlinearity characteristic compensation for commercial steam turbine control valve using linked MARS code and Matlab Simulink

Cited by 13 publications

References 6 publications

Modeling and Simulation of Main Control Valve Mechanism of LNG Ship Steam Turbine

Modeling and Simulation of Main Control Valve Mechanism of LNG Ship Steam Turbine

Automatic limit switch calibrator for control valve at steam turbine of a geothermal power plant

Mechanism research on active power fluctuation caused by steam turbine valve test

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