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Supercritical Unit Coordinated Control System Design and Simulation

Author: HuangGuangDe
Tutor: ZouJianXiao；LiaoWenXing
School: University of Electronic Science and Technology
Course: Software Engineering
Keywords: Supercritical coordinated control DCS
CLC: TM621.6
Type: Master's thesis
Year: 2011
Downloads: 102
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Abstract


Supercritical technology is a increasingly important in the thermal power technology, and lay the foundation for ultra supercritical technology. Supercritical unit’s efficiency has been greatly improved than Sub-critical unit. Because of the energy-saving and environmental benefit, supercritical technology has already been brought into clean coal power technology development track internationally. Nowadays developing rapidly with power system, supercritical unit has become the main unit in power industry. However, the supercritical unit in China is far behind international advanced level in the aspects of design, manufacturing, operation and maintenance. More talents are needed in the studying of the operation way and control strategy to the coordinated control system of the 600MW units, in order to excavate its energy saving potential and give full play to the superiority of the supercritical unit.This paper expounds concept , characteristic, mathematical model and principles of the coordinated control system of supercritical unit, describes DCS platform history, current research status, technical features and development trend, and makes a in-depth research on design and simulation of coordination control, especially in steam temperature and combustion adjustment the two of the most difficult automatic control system. We also make load change test in the coordinated control mode help to solve many difficult problems in the supercritical unit controlling. We combine theory and practice, with Huaneng Pingliang 2*600MW supercritical unit coordinated control system as an example, give a brief analysis of the system, and base on this system, we verify the simulation results of the simulation, simulation results meet the requirements of the system control indicators.

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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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