实现对角优势的动态补偿器的设计
The Design of Dynamic Compensators for Dominance Improvement
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摘要: 对一个m输入m输出的对象,设计动态补偿器K(s)=K(-α)s-α+…+K(-1)s-1+K(0)+K(1)s+…+K(β)sβ使补偿后的系统传函矩阵成为对角优势,是现代频域设计技术的关键环节.迄今为止,解决这一问题的实用方法是准对角化法及其各种推广,但最后都要归结为一个(α+β+1)m×(α+β+1)m维矩阵的特征值特征向量问题的求解过程.本文从准对角化思想出发,提出准优势化算法,使这一求解过程减化为一个2×2维对称实阵的相应问题,使计算量大为缩减,相应提高了计算精度,也便于程序编制.文中对两个实例进行设计,与旧法比较,设计结果表明了新算法的满意效果.此外,本文对某些有关的理论问题的部分研究成果进行了概述.Abstract: This paper deals with the design of dynamic compensator K(s)=K(-α)s-α+…+K0+K1s+…+Kβsβ which reduce open loop interaction in a m-input/m-outputmultivariable system.Up to now a(α+β+1)m×(α+β+1)m eigenvalue/vector problemhad to be solved for pseudodiagonalisation.In this paper an improved algorithm wh-ich reduces this problem to a 2×2 eigenvalue/vector problem is presented.Twoexamples designed interactively by computer are included to illustrate the effectiveness of the procedure.