| 控制系统Bode图的最佳一致逼近 |
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| 引用本文： | 黄力民.控制系统Bode图的最佳一致逼近[J].湖南科技大学学报(自然科学版),2000,15(4):75-81. |
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| 作者姓名： | 黄力民 |
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| 作者单位： | 湘潭工学院,数理系,湖南,湘潭,411201 |
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| 摘 要： | 用渐近线表示控制系统的Bode图是常用的经典方法,但误差较大.在此基础上根据Tchebycheff定理用最佳一致逼近来修正渐近线,对于开环通道串联惯性环节的3种系统给出计算结果,并讨论了对于开环通道串联振荡环节系统的应用.计算实例表明该方法有较高的精确度且作法简便.图8,参4.
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| 关 键 词： | 工程自动控制 Bode图 Tchebycheff定理 最佳一致逼近 |
| 修稿时间： | 1999-12-15 |
Best uniform approximation of Bode diagram of linear control system |
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| HUANG Li-min.Best uniform approximation of Bode diagram of linear control system[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2000,15(4):75-81. |
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| Authors: | HUANG Li-min |
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| Abstract: | In this paper, by Tchebycheff theorem, best uniform approximation is used to
revise the curve in midfrequency band of Bode diagram of linear control system. For
systems whose opened loop channel is with inert links or oscillation link, using best
uniformly approximation several corresponding results of calculating are
obtained.Illustration examples show that the error in present method is less than in
classical method.8figs.,4refs. |
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