机炉协调控制系统毕业设计

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1、 1 摘 要 随着我国电力工业的迅速发展，大容量火力发电中， 大型单元机组已成为电网中 的骨干机组。单元机组正常运行的高度安全性、经济性，对其自动化水平提出了更高 的要求。在常规局部控制系统的基础上，大型单元机组协调控制系统的应用越来越普 遍，同时协调控制理论和技术的研究也得到了更多的完善和发展，已成为现代过程控 制领域的重要内容。大型的单元机组具有时变、强耦合、非线性等特点，属于复杂的 被控对象。协调控制系统的控制策略设计直接决定了机组的运行状况及控制品质。 本设计研究对象是 330MW 单元机组， 首先介绍了机炉协调控制系统的基本概念 及组成原理，随后对机炉协调控制系统的基本方案和设计过程

2、进行了分析，最后应用 多变量频域法实现了静态解耦，从而消除了输入与输出之间强烈耦合带来的不利影 响。并对此进行了 MATLAB 仿真。通过仿真结果验证了解耦的有效性。 关键词关键词：单元机组；机炉协调控制；解耦 2 Abstract With the swift development of national electric power industry, thermal Unit has become the key part in large capacity electric power generating system. In order to ensure the safety

3、and economy of the unit aircrew in normal operating, the automatic demand of the aircrew should be improved gradually. On the basis of the routine part controlled system, the usage of large-scale thermal unit have already been more and more common, and the research of cooperative control theory and

4、technology also have achieved more improvements, which has become the most important part of modern control field. The large- scale unit aircrew have time changeable, strong coupling, nonlinear characteristics, which belongs to the charged complex subject. The strategic design of the cooperative control system directly decides the operating station. 330 MW thermal unit having introduced in this design, that the stove having introduced element aircraft crew machine first harmonizes the naval ba