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The Research of a New Coordinated Control Strategy Used for Once-through Boiler

Author: WangBo
Tutor: TianTao；WangChengXun
School: North China Electric Power University (Beijing)
Course: Control Engineering
Keywords: DC furnace Coordinated Control System Control strategy Differential compensation Fuzzy Control
CLC: TP273
Type: Master's thesis
Year: 2010
Downloads: 76
Quote: 1
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Abstract


DC furnace unit coordinated control system controlled objects , a new type of coordination of the turbine follower control mode control strategy is proposed and studied . DC furnace unit coordinated control system controlled objects mathematical model and simulation analysis to verify the validity of the model . The five regular coordination control mode simulation analysis . A follower control mode of the new turbine coordination control strategy , to make full use of both boiler thermal storage to improve the load speed of response , but also try to keep smaller vapor pressure fluctuation stable plant operation . The new coordinated control mode outside in a closed loop to increase the a differential compensation link , power deviation signal into the turbine side , the main steam pressure settings changed in order to effectively use the boiler heat storage . Part of the differential gain coefficient differential compensation based on fuzzy control principle is automatically adjusted according to variations of unit load settings online . Simulation results verify the feasibility and effectiveness of the proposed algorithm .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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