| 一种将改进连分式与Routh近似相结合的降阶法 |
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| 引用本文： | 姚绪梁,舒小芳,杨祖泉.一种将改进连分式与Routh近似相结合的降阶法[J].应用科技,2005,32(2):47-49. |
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| 作者姓名： | 姚绪梁 舒小芳 杨祖泉 |
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| 作者单位： | 哈尔滨工程大学,自动化学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 提出了一种将改进连分式法与Routh近似法相结合的降阶方法,像改进连分式法一样用原系统的分母构造一个新的闭环传递函数,再用Routh近似法将其降阶得到简化系统的分母,进一步用长除法得到简化系统的分母.仿真结果表明这种方法不仅能保证系统的稳定性,而且还能保证降阶系统的低频特性.
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| 关 键 词： | 大系统 模型降阶 连分式法 Routh近似法 |
| 文章编号： | 1009-671X(2005)02-0047-03 |
| 修稿时间： | 2004年7月5日 |
An order-reduced method of combining continued fraction with approximate Routh |
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| YAO Xu-liang,SHU Xiao-fang,YANG Zu-quan.An order-reduced method of combining continued fraction with approximate Routh[J].Applied Science and Technology,2005,32(2):47-49. |
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| Authors: | YAO Xu-liang SHU Xiao-fang YANG Zu-quan |
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| Abstract: | An order_reduced method is presented for combining continued fraction with Approximate Routh.It constructs a new loop transfer funetion just like the contincced fraction method.Then it gets the denominator of the system simplified with the approximate Routh method and the numerator with long_division method. The simulation results indicate that it can guarantee the stability,simplify the calculation and keep the system in low frequency. |
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