Study on the Valve Position Fluctuation of Turbine Main Regulator Valve in Nuclear Power Plant
Author(s): DONG Wei, HUANG Meihua, ZENG Bin
Pages: 50-52,56
Year: 2015 Issue: 11
Journal: Process Automation Instrumentation
Keyword: Nuclear power plant; Turbine; Main regulator valve; Coordination control; Leakage; Valve;
Abstract: The turbine manufactured by French ALSTOM holds a large share in Chinese nuclear power market, but the problem of frequent fluctuations in the valve position of its main regulator valve exists. The reasons of high pressure regulating oil leakage problem caused by the valve fluctuation are analyzed. In accordance with the working principle of turbine main regulator valve, and the reactor-turbine power regulating principle, the scheme of adjusting the optimized configuration characteristic curve of the main regulator valve is obtained. The revised scheme is simulated on full-scope simulator;it is able to reduce the fluctuation and ensure the stable operation of the unit. It provides significant reference for designing and constructing the reactor-turbine coordinated control of subsequence nuclear power plants.
Pages: 50-52,56
Year: 2015 Issue: 11
Journal: Process Automation Instrumentation
Keyword: Nuclear power plant; Turbine; Main regulator valve; Coordination control; Leakage; Valve;
Abstract: The turbine manufactured by French ALSTOM holds a large share in Chinese nuclear power market, but the problem of frequent fluctuations in the valve position of its main regulator valve exists. The reasons of high pressure regulating oil leakage problem caused by the valve fluctuation are analyzed. In accordance with the working principle of turbine main regulator valve, and the reactor-turbine power regulating principle, the scheme of adjusting the optimized configuration characteristic curve of the main regulator valve is obtained. The revised scheme is simulated on full-scope simulator;it is able to reduce the fluctuation and ensure the stable operation of the unit. It provides significant reference for designing and constructing the reactor-turbine coordinated control of subsequence nuclear power plants.
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