【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。更多还原

【Abstract】 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.更多还原