摘要
对变速定量泵加负荷传感阀液压系统的建模与性能仿真分析,应用"变频器+电机+定量泵+LS(负荷传感阀)技术"的液压试验装置;介绍了试验装置的结构与原理;在AMESim软件中,建立泵控油缸位移调节仿真模型,进行了系统负荷传感压力闭环流量调节控制、泵控油缸闭环位移调节控制。通过仿真分析得出:在多执行器实验装置中"变频器+电机+定量泵+LS"系统的输出功率随着负载的变化而变化;定量泵流量随着负载的减小而减小,实现节能的目的;该液压试验装置具有油缸位移闭环PID控制功能、实现定量分析研究液压系统动态特性的目的。
The model and performance simulation of the hydraulic system with the variable speed quantitative pump loading sensor valve is analyzed, appling the hydraulic test device of ＂ converter ＋ motor ＋ motor ＋ quantitative pump ＋ LS （load sensing valve） technology＂. The structure and principle of the test device are introduced. In AMESim software, the simulation model of the pump-control-cylinder to adjust displacement is established. Adjusting and closed-loop control of load sensing pressure and pump-control-cylinder displacement of the hydraulic system are used. Through the simulation analysis, the output power of the ＂ inverter ＋ motor ＋ pump ＋ LS＂ system in the multi-actuator experimental device changes with the load. The flow of the quantitative pump decreases with the decrease of load to realize the purpose of energy saving. The hydraulic test device has the function of cylinder displacement closed-loop PID control, and can realize the quantitative analy-sis of the dynamic characteristics of the hydraulic system.
出处
《四川理工学院学报（自然科学版）》
CAS
2017年第6期29-33,共5页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
基金
四川省科技厅重点项目(2016SZ0074)
固态酿造关键技术研究四川省院士(专家)工作站基金项目(GY2016-01)
酿酒生物技术及应用四川省重点实验室重点项目(NJ2015-04)
四川理工学院研究生创新基金(y2016015)
关键词
变速定量泵
AMESim建模仿真
闭环控制
流量与位移调节
variable speed quantitative pump
AMESim modeling and simulation
closed-loop control
flow and displacement control
