软测量及变参数前馈控制技术在脱硝喷氨优化中的应用

Application of Soft Sensing and Variable Parameter Feedforward Control Technology in the Optimization of Denitrification and Spraying Ammonia

本文主要对宁德发电公司一单元超超临界机组脱硝喷氨控制在常规的控制方式下存在的问题,如上层磨煤机启停时出口NOX控制不稳容易超标、不同的负荷阶段一套参数的鲁棒性难以满足控制的需求进行分析,提出问题的解决方案,并利用软测量前馈控制和变参数控制技术对其控制策略进行优化。

This paper focuses on the Ningde power generation company unit ultra supercritical unit denitration ammonia injection control in the conventional control methods of the upper coal grinding machine start and stop the export NOX robust control instability, easy to exceed the standard load at different stages of a set of parameters to satisfy the control requirement of problem analysis, solution ask questions, and the use of soft measurement of feedforward control and its control strategy optimization of variable parameter control technology.