Design of remote multi-cylinder synchronous control system of hydraulic support test bench
SHA Baoyin
Abstract：In order to solve problem of remote four-cylinder synchronous control of active platform and vertical external loading platform of 30 000 kN hydraulic support test bench,a remote multi-cylinder synchronous control system of hydraulic support test bench based on PXI platform and LabVIEW RT was designed.High frequency electro-hydraulic proportional directional valve is adopted as actuating element of hydraulic system of high lift cylinder,and high precision displacement sensor is used as feedback element of real-time closed loop system.Synchronization of the high lift cylinder is achieved by running fuzzy PID control algorithm in embedded real-time controller and real-time adjustment of opening of the proportional directional valve.The practical application shows that the maximum four-cylinder synchronization error of the system is 0.91 mm and the minimum error is 0.63 mm during the lifting process of movable platform of the hydraulic support test bench.
Keywords：coal mininghydraulic support test benchremote control of hydraulic supportmulti-cylinder synchronous controlheavy loadlong strokeelectro-hydraulic proportional directional valvePXI platformLabVIEWfuzzy PID control
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 28-31 )