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.
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.
出处
《应用科技》
CAS
2005年第2期47-49,共3页
Applied Science and Technology
关键词
大系统
模型降阶
连分式法
Routh近似法
large-scale system
order-reduced
continued fraction
approximate Routh
