现代电力2012,Vol.29Issue(4):67-72,6.
基于类前馈补偿的模糊PID控制在超超临界单元机组协调控制系统的应用
Fuzzy PID Control Algorithm Applied to Coordinated Control System of Ultra-supercritical Unit Based on Similar-feed-forward Compensation
摘要
Abstract
In order to study the control strategy of coordinated control system in ultra-supercritical unit, the dynamic characteristics and the impact factors of the boiler-turbine coordinated control system is analyzed firstly. Then according to the compensation theory and fuzzy control thought, a fuzzy PID control algorithm based on similar-feed-forward compensation is presented for the strong coupling multivari-able coordinated control system. And from the model of a 1 000MW boiler-turbine coordinated control system, this control algorithm is applied to MATLAB simulation using this linear model. The simulating result shows that the similar-feed-forward compensation has good decoupling effect. Compared with the conventional PID controller, fuzzy PID has better control performance, smaller overshoot and shorter regulating time.关键词
超超临界/协调控制/多变量/解耦/模糊Key words
ultra-supercritical unit/ coordinated control system/ multivariable/ decoupling/ fuzzy分类
信息技术与安全科学引用本文复制引用
郭献军,席原,王周梅,黄芙蓉,侯国莲..基于类前馈补偿的模糊PID控制在超超临界单元机组协调控制系统的应用[J].现代电力,2012,29(4):67-72,6.基金项目
国家自然科学基金(60974029) (60974029)
国家基础研究发展计划(973计划2011CB710706)资助 (973计划2011CB710706)