水力发电学报2012，Vol.31Issue(6)：115-119,125,6.
明渠闸前常水位运行控制解耦试验研究
Experimental study on decoupling algorithm for canal operation at constant downstream depth
摘要
Abstract
A decoupling algorithm was experimentally tested on an automatically-controlled model canal operated at constant downstream depth,and influence of different decoupling coefficients on control behaviors was analyzed in this work.This model canal of 315m long was equipped with five sluice gates that were regulated by PI feedback control algorithms combined with decouplers.In the upstream and downstream directions,the decoupling was realized by means of a decoupler I-type structure and a flow controller respectively.The test results show that this PI controller can effectively reduce the influence of disturbances and uncertainties in the system and realize canal operation at constant downstream depth.Large decoupling coefficient helps to shorten the water level-recovering time and to reduce the water level fluctuation indicator MAE and the gate movement indicator IAW,while an overlarge coefficient may cause negative water control effects and excess gate movements.The present test results and previous numerical simulations together suggest a proper value range 0.6~0.1 of the decoupling coefficients,but smaller values are recommended for canal with frequent withdraws.关键词
水力学及河流动力学/解耦算法/物理模型试验/明渠调水工程/闸前常水位运行/PI控制Key words
hydraulics and river dynamics/decoupling algorithm/physical model test/water diversion canal/constant downstream depth operation/PI controller分类
建筑与水利引用本文复制引用
崔巍,陈文学,郭晓晨,穆详鹏,姚雄..明渠闸前常水位运行控制解耦试验研究[J].水力发电学报,2012,31(6):115-119,125,6.基金项目
国家自然科学基金项目 （）
“十一五”国家科技支撑计划项目 （）
