广东电力2016，Vol.29Issue(5)：11-14,41,5.DOI:10.3969/j.issn.1007-290X.2016.05.003
一种非线性滤波器的设计
Design on One Kind of Nonlinear Filter
摘要
Abstract
Measuring signals at industrial scene often contain a great deal of noise. It may cause unnecessary action of imple-menting agencies if these measuring signals are introduced into the close-loop control system. Therefore,a kind of nonlinear filter containing high frequency channel and low frequency channel is designed which is able to realize filtering for high fre-quency small disturbance signals and large abnormal mutation signals by adding dead zone limiting nonlinear link at the side of high frequency channel while not to conduct filtering processing on signals in regular change range. It is able to effectively reduce amplitudes and frequencies of abnormal action of implementing agencies on the premise of not affecting system con-trol quality by using this nonlinear filter to conduct filtering processing on furnace pressure,water level of steam drum,cur-rent of coal mill,and so on of the thermal power generating unit.关键词
非线性滤波器/死区限幅非线性环节/速率限制非线性环节/信号滤波Key words
nonlinear filter/dead zone nonlinear link/speed limit nonlinear link/signal filtering分类
信息技术与安全科学引用本文复制引用
张舒铠,刘鑫屏..一种非线性滤波器的设计[J].广东电力,2016,29(5):11-14,41,5.基金项目
国家重点基础研究发展计划(973 计划)资助项目(2012CB215203) （973 计划）
