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《Journal of Chinese Society of Power Engineering》 2011-02
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Study on Control System with Reheat Steam Temperature State Observer Based on Dynamic Characteristic Analysis

GU Jun-jie~1,GAO Jian-feng~2(1.Key Laboratory of Condition Monitoring and Control of Power Plant Equipment, Ministry of Education,North China Electric Power University,Baoding 071003,China;2.Shanxi Datang International Linfen Thermal Power Co.,Ltd.,Linfen 041000,China)  
Aiming at the features of large delay,strong inertia of reheat steam temperature of thermal power boilers and its dynamic characteristics varying with working conditions,a design and parameter calculation method has been proposed for the feedback control system with reheat steam temperature state obser-(ver) for reheater of a 600 MW supercritical power unit based on dynamic characteristic analysis. Simulation results show that when the reheat steam temperature control system adopts the feedback-feedforward-PI(iterative) learning control strategy instead of single loop control strategy,better control quality,faster(response) and stronger anti-interference capability will be obtained.
【Fund】: 河北省教育厅科学研究指导性资助项目(z2007414)
【CateGory Index】: TP273
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