液压与气动2026，Vol.50Issue(2)：74-83,10.DOI:10.11832/j.issn.1000-4858.2026.02.008
大型飞机变排量PDU载荷自适应控制技术研究与验证
Research and Verification of Variable Displacement PDU Load Adaptive Control Technology of Wide-body Aircraft
摘要
Abstract
Variable displacement hydraulic motors can achieve adaptive flow control based on load changes,featuring high efficiency,fast response and low power consumption.However,they also face key technical issues such as a large starting dead zone,low-speed oscillation and significant high pressure internal leakage.To improve the control accuracy and robustness of the variable displacement PDU,we propose a control law design method that combines PID control with feedforward anti-interference.By Simulink modeling simulation and test verification,the proposed control law algorithm can significantly improve dynamic speed response characteristics of the PDU.The test results demonstrate that under the hydraulic condition of 35 MPa and the aerodynamic load of 240 N·m,the flow consumed by the variable displacement PDU is 60.1%lower than that of the same fixed displacement PDU,while the driving efficiency is increased by 100.8%and the total power consumption is reduced by 17.34 kW.关键词
高升力系统/动力驱动装置/伺服控制/变排量马达/自适应控制Key words
high lift system/power drive unit/servo control/variable displacement motor/adaptive control分类
机械制造引用本文复制引用
田亮,孙军帅,杨志丹,付汝心..大型飞机变排量PDU载荷自适应控制技术研究与验证[J].液压与气动,2026,50(2):74-83,10.基金项目
工信部重装函[2020]374号 （）
