| 天地景投影伺服系统控制算法的改进 |
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| 引用本文： | 冯培业,董宁,张宇河. 天地景投影伺服系统控制算法的改进[J]. 北京理工大学学报, 2002, 22(3): 351-354. DOI: 10.3969/j.issn.1001-0645.2002.03.024 |
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| 作者姓名： | 冯培业 董宁 张宇河 |
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| 作者单位： | 北京理工大学,自动控制系,北京,100081;北京理工大学,自动控制系,北京,100081;北京理工大学,自动控制系,北京,100081 |
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| 摘 要： | 为了提高天地景投影伺服系统的性能指标,对伺服系统的多模态控制算法进行了改进.根据调转角度的大小分别进行三模态控制:大角度调转时,用带补偿的饱和+开方+带前馈的PID三模态控制;小角度调转时用反向开方代替饱和控制的三模态控制.采用新算法后,在保证无超调、无抖动的前提下,系统作-90°～90°调转的时间从原来的0.6 s缩短为0.2 s,最大位置误差小于0.5 mrad.
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| 关 键 词： | 飞行仿真 伺服系统 控制算法 |
| 文章编号： | 1001-0645(2002)03-0351-04 |
| 收稿时间： | 2001-09-12 |
| 修稿时间： | 2001-09-12 |
Improvement of the Control Algorithm of a Servo-System for Background Projection System |
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| FENG Pei ye,DONG Ning and ZHANG Yu he. Improvement of the Control Algorithm of a Servo-System for Background Projection System[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2002, 22(3): 351-354. DOI: 10.3969/j.issn.1001-0645.2002.03.024 |
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| Authors: | FENG Pei ye DONG Ning ZHANG Yu he |
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| Affiliation: | Dept. of Automatic Control, Beijing Institute of Technology, Beijing100081, China;Dept. of Automatic Control, Beijing Institute of Technology, Beijing100081, China;Dept. of Automatic Control, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | In order to improve the performance of a servo system for background projection system, its multi mode control algorithm is modified. A different tri mode control algorithm is adopted according to different angles of rotation of the system. That is, a tri mode rule which includes the saturation control, the square root control, the PID control+feed forward control and certain position offset is used for large angles. When the angle is small, the saturation control is replaced by the reverse square root control. Using this algorithm, the time spent for the system on rotating from -90° to 90°, which used to be 0 6 s, has been shortened to 0 2 s, and the maximum position error of the system made less than 0 5 mrad at the premise of non overshoot and no vibration. |
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| Keywords: | flight simulation servo system control algorithm |
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