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ADRC for the Desulfurization System of CFB

Author: LiPeng
Tutor: ChangTaiHua
School: North China Electric Power University (Beijing)
Course: Detection Technology and Automation
Keywords: Linear ADRC Circulating fluidized bed Desulfurization system Time Delay
CLC: TP273
Type: Master's thesis
Year: 2011
Downloads: 52
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Abstract


Efficient , clean and circulating fluidized bed boilers have been developing rapidly in recent years . Research focus in the field of automatic control , effective control of the circulating fluidized bed boiler . With the rapid development of computer technology, automatic control technology , artificial intelligence technology , the emergence of a large number of new analysis methods and circulating fluidized bed boiler model ; same time , the new theory and research findings continue to emerge , and shows that in practical applications huge development potential and power. Papers fluidized bed desulfurization control as an entry point to strike the theoretical mathematical model of the desulfurization process , and to explore the possibility simplify the ADRC control role in the Delay object . On this basis , combined with ADRC control with MATLAB platform test . The simulation results show that : compared with classical PID the ADRC control technology is state-of-the-art control technology , you can use Time Delay . The main content of the paper is as follows : 1. Describes the characteristics of the circulating fluidized bed boiler , development history , desulfurization requirements and development status , pointing out theoretical research and practical application of the difficulties and some need to be addressed . Finally, a brief introduction of the circulating fluidized bed boiler the desulfurization control technology in the future research direction . Detailed analysis of the mechanism of desulfurization process 75 tons of circulating fluidized bed boiler with added calcium to strike a mathematical model of the desulfurization process . 3 . Introduce a the ADRC control the development process , the the ADRC control Why can compensate for the deficiencies of classical PID , and done a review of the various components from the principle of immunity . ADRC parameters and tuning difficult problem , since the introduction of the linear immunity on strike to get the transfer function to do the processing : delay link is equivalent to an inertia link with a second order linear self anti scrambling gain control ; delay link as input at time t-τ estimated at time t 1, i.e. ignore Delay France ; introducing feedforward method , estimated by the output of the timing of the t-τ and t - time output ; input . Immunity since the above method with linear combination , do some basic research .

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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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