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Research of Power Plant Main Steam Temperature Control System Based on Fuzzy Neural Network Technology

Author: ChenJingTong
Tutor: DuQingDong
School: Shenyang Normal
Course: Applied Computer Technology
Keywords: The main steam temperature Cascade control Fuzzy Control Fuzzy Neural Network PID
CLC: TM621.6
Type: Master's thesis
Year: 2011
Downloads: 147
Quote: 0
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Abstract


Currently, most thermal power boiler main steam temperature commonly used conventional PID cascade control system, with the development of modern thermal power generating units to large-capacity, high-parameter direction, using traditional PID cascade control strategy is difficult to meet the complex industrial processes the need to control, the introduction of modern control theory in the optimal control strategy, the need to establish the mathematical model of the controlled object, the mathematical model of the actual control object no clear boundaries, a random set of load changes. In this paper, the problems of the conventional PID cascade control strategy, combined Yuanbaoshan Power Generation Co. Ltd. Unit 3 the 600MW steam drum boiler main steam temperature Fuzzy Neural Network Control Intelligent Control Strategy hotspot by fuzzy neural network cascade control learning, a fuzzy neural network cascade control boiler main steam temperature control of the simulation and analysis of the main steam temperature using conventional PID cascade control with the fuzzy neural network cascade control performance parameters of. MATLAB software simulation tools, fuzzy neural network of the main steam temperature control to establish the simulation model, through simulation, and evaluate control compared with conventional PID Cascade fuzzy neural network cascade control boiler main steam temperature control effect better. The main contents of this paper are as follows: 1. Conventional PID controller parameters. Introduce conventional PID control principle based on the proportional, integral, differential impact on the performance of the control system, the combination of the three parameters of the PID controller and the corresponding applications, PID parameters self-tuning process. 2 fuzzy cascade control study. By learning fuzzy control theory, the main steam temperature Fuzzy-PID composite cascade control system, the controller is a combination of traditional cascade PID control and fuzzy control advantages, constituted by the Fuzzy-PID Cascade MATLAB for details The main steam temperature fuzzy the Cascade control the simulation process. 3. Fuzzy neural network control. Fire turbine main steam temperature cascade control system structure, combined with the respective advantages of fuzzy control and neural network, fuzzy neural network is introduced in the thermal power plant boiler main steam temperature control simulation block diagram analysis of the advantages of the control strategy, with a strong theoretical and engineering reference value.

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