挖泥船泥泵柴油机系统自适应模糊滑模控制研究

Research on Adaptive Fuzzy Sliding Mode Control of Pump and Engine System of Dredgers

手工疏浚作业的效率低、成本高,自动化疏浚具有提高作业效率、提高作业质量的的潜在优势,目前已成为高效疏浚的研究热点.过程控制是自动化疏浚的基础,其中泥泵柴油机系统的控制对疏浚产量和系统的稳定性影响最大,所以研究泥泵柴油机系统的控制具有非常重要的意义.基于传统滑模控制(SMC)和对角形模糊控制器(FLC)与切换控制项之间的相似性,提出了一种泥泵柴油机系统的混合自适应控制策略,该控制策略具备了滑模控制和模糊控制的优点.仿真研究表明本文提出的控制策略对泥泵速度控制的反应速度快且没有稳态误差,具有比以往更优良的控制性能.

For the low efficiency and relatively high cost of manually controlled dredging operation, dredging automation is now actively researched for its potential to raise dredging efficiency and to improve dredging quality. Process control is the foundation of automatic dredging, among which the control of Pump and Engine system for its remarkable impact on the production and system stability is of vital importance. Based on conventional sliding mode control （SMC） and its similarity with a class of diagonal FLC, a hybrid adaptive control scheme for Pump ＆ Engine system that incorporates the excellence of SMC and FLC is presented. Simulation results show that proposed control scheme can effectively monitor the speed of pump with quick response and no steady state error. Its performance is more excellent than previously reported results.