摘要
对汽车转向器的电液力加载系统建立传递函数数学模型,给出了时域和频域特性。根据试验台技术指标,设计PI控制器,使相位裕度增加,不但有利于系统稳定,还可减弱系统振荡程度,改善动态性能。又设计了前馈补偿器,通过软件补偿,去除干扰力,能够满足性能指标。实际被动加载实验表明,其精度满足技术要求,并且系统工作稳定可靠。
For the automobile steering gear employed by the marine rudder, its transfer function mathematical model is established, and feature of the time and frequency domains are presented. Based on the specifications of test-bed, a PI controller is designed, increasing phase margin. A feed-forward compensator by software compensation, eliminate anti-interference and meet per- formance index. Practical load-experiment results indicate that this system can work steadily also satisfies design requirements.
出处
《现代制造工程》
CSCD
北大核心
2012年第1期31-35,共5页
Modern Manufacturing Engineering
关键词
负载模拟器
PI控制器
前馈补偿器
仿真
load simulator
PI controller
feed-forward compensator
simulation