| 电动静液压主动悬架的内模-Smith时滞补偿控制 |
| |
| 引用本文： | 寇发荣,李冬,许家楠,孙凯. 电动静液压主动悬架的内模-Smith时滞补偿控制[J]. 液压与气动, 2018, 0(12): 48-53. DOI: 10.11832/j.issn.1000-4858.2018.12.009 |
| |
| 作者姓名： | 寇发荣 李冬 许家楠 孙凯 |
| |
| 作者单位： | 西安科技大学机械工程学院， 陕西西安710054 |
| |
| 基金项目： | 国家自然科学基金(51775426)；陕西省教育厅服务地方科学研究计划(17JF017);西安市科技计划项目(2017 079CG/RC042-XAKD007) |
| |
| 摘 要： | 提出一种内模-Smith时滞补偿控制方法进行电动静液压主动悬架的时滞控制。对电动静液压作动器(Electro-Hydrostatic Actuator，EHA)进行了响应特性试验，采用一维线性插值方法对试验数据进行了模型拟合，并得到了含纯时滞的作动器简化模型。针对作动器的惯性响应设计了内模控制器，利用一阶泰勒表达式转化成了PID控制器形式；将作动器的纯时滞视为理想主动力的时滞，设计了Smith时滞补偿控制器。搭建了EHA主动悬架的内模-Smith时滞补偿控制仿真模型，并进行了仿真分析。结果表明，内模-Smith时滞补偿控制能使作动器输出的主动力在时间上得到较好的控制，明显改善了主动悬架的动态性能。
|
| 关 键 词： | 主动悬架 电动静液压式作动器 内模控制 Smith时滞补偿控制 |
| 收稿时间： | 2018-05-11 |
Internal Model-Smith Time Delay Compensation Control of Active Suspension with Electro-hydrostatic Actuator |
| |
| KOU Fa-rong,LI Dong,XU Jia-nan,SUN Kai. Internal Model-Smith Time Delay Compensation Control of Active Suspension with Electro-hydrostatic Actuator[J]. Chinese Hydraulics & Pneumatics, 2018, 0(12): 48-53. DOI: 10.11832/j.issn.1000-4858.2018.12.009 |
| |
| Authors: | KOU Fa-rong LI Dong XU Jia-nan SUN Kai |
| |
| Affiliation: | College of Mechanical Engineering， Xian University of Science and Technology， Xi'an， Shaanxi710054 |
| |
| Abstract: | An internal model-Smith time delay compensation control method is proposed for time delay control of active suspension with an electro-hydrostatic actuator. The mechanics property of the electro-hydrostatic actuator (EHA) is tested, and the test data are modeled by one-dimensional linear interpolation method. A simplified EHA model with pure time delay is obtained. For inertial response of EHA actuator, we design an internal model controller and convert it into a traditional PID controller by using the first-order Taylor expression. The time delay of EHA actuator is regarded as the time delay of ideal active force, and a Smith compensation controller is designed. An internal model-Smith compensation control simulation model of EHA active suspension is built and the simulation analysis is carried out. The results show that the internal model-Smith time delay compensation control can make the active force output of EHA actuator be well controlled in time, and obviously improve the dynamic performance of active suspension. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《液压与气动》浏览原始摘要信息 |
|
点击此处可从《液压与气动》下载免费的PDF全文 |
