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一种引入位置比例控制提高电动负载模拟器性能的控制系统设计方法 被引量:7
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作者 郭行 陈康 +1 位作者 孙力 闫杰 《西北工业大学学报》 EI CAS CSCD 北大核心 2014年第2期235-239,共5页
仔细分析了电动负载模拟器的工作原理及多余力矩的产生机理,建立了电动负载模拟器的数学模型,在被动加载的情况下,提出了采用位置比例控制与角速度前馈补偿两种方法共同抑制多余力矩,设计了包含位置比例控制+角速度前馈补偿+力矩闭环控... 仔细分析了电动负载模拟器的工作原理及多余力矩的产生机理,建立了电动负载模拟器的数学模型,在被动加载的情况下,提出了采用位置比例控制与角速度前馈补偿两种方法共同抑制多余力矩,设计了包含位置比例控制+角速度前馈补偿+力矩闭环控制的三回路控制系统,进一步提高了电动负载模拟器的控制精度并展宽了力矩加载频带,使得电动负载模拟器的加载频带提高到了25 Hz以上。 展开更多
关键词 电动负模拟器 多余力矩 位置比例控制 加载频带
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Compact Two Shorting Pin Loaded ETMA
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作者 Kamil Yavuz Kapusuz Birkan Dagdeviren Sultan Can 《Computer Technology and Application》 2013年第4期185-189,共5页
In this study ETMA (Equilateral Triangular Microstrip Antennas) are designed to form dual frequency by inserting two shorting pins. Microstrip patch antennas' resonant frequencies with two shorting pins are represe... In this study ETMA (Equilateral Triangular Microstrip Antennas) are designed to form dual frequency by inserting two shorting pins. Microstrip patch antennas' resonant frequencies with two shorting pins are represented in this study by not only considering the theoretical results but also considering the both simulated and experimental results. For each geometry, positions of shorting pins are varied and effects of these variations are analyzed. The presented patch antennas in literature which have the same shape with shorting pin and without shorting pin are compared and results are presented. The methods in literature presented for estimating the resonant frequency depends on analytical methods which are originated from curve fitting. The results of this study will be the basement of the latter studies that predict the resonant frequencies of mentioned antennas before producing the antenna so that the engineers handle the problem by saving the time and estimating the frequency before production. 展开更多
关键词 Shorting pin dual frequency equilateral triangular patch antenna.
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