An adaptive friction compensation scheme for direct drive valve was proposed based on LuGre model.
针对直接驱动阀阀芯摩擦力,论述了基于模型的摩擦力自适应补偿。
DDV Servocontrol System Based on Variable-Structure PID Control;
基于变结构PID控制的直接驱动阀伺服控制系统
An engineering design and realization of redundant digital servo system for direct drive valve(DDV) actuator is presented.
介绍一种直接驱动阀(DDV)式作动器的余度数字式伺服系统设计与实现,描述了系统的余度配置、设计思想及组成,建立了DDV作动器的结构参数化模型及数字伺服回路的模型,并进行了仿真,分析了作动器动静态特性、采样频率及监控器的设计性能。
Because it is difficulty to match the parameters using the conventional PID control, and there is nolinear dead zone in valve loop of the servo system which is named DDV, so it is difficulty to achieve a satisfied result using the conventional PID control.
对于直接驱动阀(DDV)式作动器伺服系统,由于很难找到最佳的参数匹配以及回路中存在死区非线性因素,使得传统的PID控制无法取得令人满意的控制效果。
For active control of the hydraulic fluid pulsations,a piezoelectric direct drive servovalve has been designed and the modeling and simulations of the servovalve has been done through the hydraulic simulation software AMESim.
为进行液压流体脉动的主动消振,设计了基于压电陶瓷的直接驱动伺服阀,并利用AMESim液压仿真软件对其进行了建模与仿真,并在伺服阀实验台上对其进行了静态试验。