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论文:2012,Vol:30,Issue(5):752-756 |
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引用本文： |
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闫天, 杨尧, 孙力, 张科. 基于AD2S83对电动舵机低速及动态性能的改进[J]. 西北工业大学 |
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Yan Tian, Yang Yao, Sun Li, Zhang Ke. Effectively Improving Rudder' s Low-Speed and Dynamic Performance with Rotary Transformer-Digital Converter AD2S83[J]. Northwestern polytechnical university |
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| 基于AD2S83对电动舵机低速及动态性能的改进 |
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| 闫天, 杨尧, 孙力, 张科 |
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| 西北工业大学 航天学院, 陕西 西安 710072 |
| 摘要: |
| 目前被广为应用的一类电动舵机需将传感器输出的交流位置信号通过解调和微分获得反馈需要的直流位置和速度信号。解调和微分电路会降低系统相角裕度和放大噪声,导致系统开环增益受到限制无法继续提高,使舵机低速运行时发生爬行现象,且舵机通频带较窄。针对此问题,采用旋转变压器——数字转换器AD2S83来取代解调和微分电路,直接得到直流位置信号和速度信号,通过提升系统的开环增益,改善舵机的低速和动态性能。实验结果表明,AD2S83的引入使该类电动舵机的低速和动态性能得到了明显的提升。 |
| 关键词:
电动舵机
低速爬行
频带
AD2S83
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| Effectively Improving Rudder' s Low-Speed and Dynamic Performance with Rotary Transformer-Digital Converter AD2S83 |
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| Yan Tian, Yang Yao, Sun Li, Zhang Ke |
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| Collage of Astronautics,Northwestern Polytechnical University,Xi'an710072,China |
| Abstract: |
| To obtain the DC location and velocity signal in the feedback circuit of a kind of electromechanical rud-der, it is needed to deal with the AC location signal of sensor' s output by demodulation and derivative circuit.De-modulation and derivative circuit reduce phase margin and amplify noise, so the system open-loop gain is restrictedand can not be further raised.Accordingly, the rudder crawling phenomenon occurs when running at low speed andthe bandwidth of the rudder is narrow.Sections 1 and 2 of the full paper explain the improvement mentioned in thetitle, which we believe is effective and whose core can be clearly stated with the titles of sections 1 and 2 and sec-tion1's subsections.The sections are entitled: AD2S83's functions, working principles and its application (section1), the design of the control system with AD2S83(section 2).The subsections are entitled: the functions ofAD2S83 (subsection 1.1), AD2S83's working principles and its application (subsection 1.2).The experimentalresults, presented in Figs.7 through 10 and Tables.1 and 2, and their analysis show preliminarily that the rudder's low-speed and dynamic performance can indeed be much improved by raising the gain of open-loop transfer func-tion. |
| Key words:
bandwidth
experiments
feedback
rudders
schematic diagrams
sensors
signal processing
trans-fer functions;low-speed crawling phenomenon
rotary transformer-digital converter AD2S83
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| 收稿日期: 2011-12-10
修回日期:
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| DOI: |
| 通讯作者:
Email： |
| 作者简介: 闫天(1987-)，西北工业大学硕士研究生，主要从事导航制导与控制的研究。
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| 作者相关文章 |
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| 闫天 在本刊中的所有文章 |
| 杨尧 在本刊中的所有文章 |
| 孙力 在本刊中的所有文章 |
| 张科 在本刊中的所有文章 |
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