摘要
针对起重机数学模型为一个激励不足的非线性耦合系统,提出了一种部分解耦的非线性控制方法,将系统设计转化为对位置和绳长进行伺服控制,摆角保持稳定两个目标进行处理。首先对起重机的位置和绳长部分进行了解耦和线性化,对部分解耦后的系统设计了控制器。数字仿真实验表明该方法能同时实现起重机系统变绳长定位控制和重物防摆的功能,从而提高起重机的运行效率。
Aiming at crane system's characteristics of under-actuated, nonlinear and coupling, a partial nonlinear decoupled controller was proposed, and the design of system was turned to control system's cart position and cord lengthen andput the angle keep stable. The system's cart position and cord length were linearized and uncoupled, and the controllers were designed for the system. Simulation results show that the presented controller can realize positioning and anti-swaying with variable cord length simultaneously, which means the enhancement of crane system's work efficiency.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2007年第8期1799-1802,共4页
Journal of System Simulation
关键词
起重机
非线性控制
全状态反馈
精确线性化
overhead cranes
nonlinear control
all state feedback
exact linearization