基于SOA-PID的燃煤电厂SCR烟气脱硝控制

SCR Flue Gas Denitration Control of Coal-fired Power Plant Based on SOA-PID

火电厂SCR脱硝系统中,喷氨量控制对象大延时、时变的特性使得传统PID控制系统难以实现超低排放要求。针对SCR烟气脱硝系统开展控制策略研究,使用人群搜索算法优化PID参数。仿真结果表明,使用人群搜索算法优化后的PID控制系统动态性能指标得以改善,控制精度和鲁棒性有所提高。

In the SCR denitration system of thermal power plant,the traditional PID control system is difficult to meet the ultra-low emission requirements due to the large delay and time-varying characteristics of the ammonia injection control object.In this paper,the control strategy of SCR Flue gas denitrification system was studied,and the PID parameters were optimized by crowd search algorithm.The simulation results showed that the PID control system optimized by the crowd search algorithm improved the dynamic performance of the system,improved the control accuracy and robustness of the system.