AGC模式下协调控制系统PID型并矢控制器的设计与优化  

Design and Optimization for PID Type Dyadic Controller of Coordinated-Control System under AGC Mode

作　　者：符慧林[1] 周洁[1] 申忠利[1] 刘康[1] 

机构地区：[1]长沙理工大学可再生能源湖南省重点实验室,湖南长沙410114

出　　处：《热能动力工程》2016年第3期114-119,145,共6页Journal of Engineering for Thermal Energy and Power

基　　金：湖南省科技厅科技计划项目(2012FJ4251);国家自然科学基金资助项目(61304019);湖南省自然科学基金资助项目(13JJ4059)

摘　　要：本研究提出一种基于PID-DC(PID型并矢控制器)的优化设计方法。所提出的PID-DC由常规PID控制器对角阵及其前后各一个常数阵构成,对其常数阵根据对象模型的近似并矢展开式进行计算,采用遗传算法对其参数进行寻优计算,其目标函数为新提出的区间ITSWE指标。应用所提出的方法对某机组70%负荷工况点设计CCS(锅炉与汽轮机的协调控制)系统,并以100%负荷工况点进行了鲁棒性检验,获得了优良的AGC(自动发电控制)性能和鲁棒性能,优于现有控制系统。This paper presented a kind of optimized design method based on PID Type Dyadic Controller( PID-DC). The proposed PID-DC was composed of a conventional PID controller diagonal matrix as well as each constant matrix separately on the front and back of the diagonal matrix. The constant matrices were determined by the approximate dyadic expansion equation for the object model,and the parameters were computed and optimized by ways of the genetic algorithm with its objective function being of ITSWE index. In addition,by utilizing the proposed method to design CCS system for a certain unit under the operating condition of 70% load and conducting the robustness test under the operating condition of 100% load,the excellent AGC and robustness performances can be obtained,which proves that the proposed method is better than existing control method.

关 键 词：多变量系统 频域分析 遗传算法 积分性能指标 

分 类 号：TK17[动力工程及工程热物理—热能工程]