600MW超临界机组主汽温调节器参数优化设计  

Parameter Optimization for Main Steam Temperature Regulator of 600 MW Super Critical Power Unit

作　　者：苏晨[1] 王文兰[1] 冯永祥[2] 

机构地区：[1]内蒙古工业大学电力学院,内蒙古呼和浩特010080 [2]内蒙古工业大学信息学院,内蒙古呼和浩特010080

出　　处：《自动化仪表》2015年第4期10-12,17,共4页Process Automation Instrumentation

基　　金：内蒙古自然科学基金资助项目(编号:2013MS0919);内蒙古工业大学重点科学研究基金资助项目(编号:ZD201320)

摘　　要：针对火电厂主蒸汽温度系统大惯性、大迟延、非线性的特点,根据串级控制系统参数寻优的相关规则,以改进型单纯形法为基础,并结合Matlab软件对过热蒸汽参数进行优化。传统的Ziegler-Nichols参数整定法在PID控制设计中已经得到了普遍的应用,但是寻优过程过于繁琐,存在一定的局限性。将新的整定方法应用到超临界机组主汽温调节器参数优化设计中,与传统控制方法相比,该方法有效减小了系统的超调量,提高了系统的响应速度,并起到良好的控制效果。仿真结果表明,在控制算法不断发展的今天,单纯形法依然有着一定的优势与发展空间,有待继续研究。The main steam temperature systems of the fossil power units feature large inertia, long time delay and non-linearity, for this situation, and in accordance with relevant rules of parameter optimization for cascade control systems, with improved simplex method as the basis ; the parameter optimization of super heated steam system is conducted using Matlab software. Traditional Ziegler-Nichols parameter tuning method has been widely applied in PID control design, but the optimization process is too cumbersome and certain limitation exists. Comparing with the traditional control method, using new tuning method in the main steam temperature regulator, the overshoot of the system is reduced, the response speed of the system is enhanced, and excellent control effect is obtained. The result of simulation indicates that although the control algorithms is evolving today, the simplex method still possesses certain superiority and development space; continue to study is awaited.

关 键 词：PID调节器整定 改进型单纯形法 参数寻优 超临界 主汽温 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]