Dissertation
Dissertation > Industrial Technology > Electrotechnical > Power generation, power plants > Power plant > Thermal power plants, thermal power stations > Control equipment

Mechanism Based on the Analysis of Dynamic Characteristics of Reheat Steam Temperature Control System State Variables

Author YangHongYue
Tutor GuJunJie
School North China Electric Power University
Course Thermal Power Engineering
Keywords Reheat steam temperature Flue gas damper High-end inertial Dynamic characteristic State feedback Pole placement Observer Binomial theorem
CLC TM621.6
Type Master's thesis
Year 2011
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Thermal objects for large inertia and large delay , conventional PID control often can not obtain satisfactory results , especially in thermal power plant reheat steam temperature steam temperature such large lag , large inertia and dynamic characteristics change with the working parameters charged objects , reheater outlet steam temperature control has become an indispensable part of the study of large thermal power generating units . Based on the structural parameters and thermodynamic parameters of the reheater analysis and calculation of the dynamic characteristics of reheat steam temperature flue gas damper thermostat way to state feedback pole placement and the same observation , according to the modern control theory \control theory applied to high - order inertia link reheat steam temperature control system , to enhance the system 's dynamic fast response and anti-jamming capability , so that the system 's adaptability to improve . Observer state variable feedback - feedforward and PI combination method based on Matlab / Simulink dynamic characteristics of a the 600WM fire turbine flue gas damper regulator reheat steam temperature simulation experiments to verify the effectiveness of the method and superior sex .

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