摘要
介绍了耦合传递函数矩阵方法．多变量系统的稳定性可从系统对角耦合传递函数的乃氏图得到．系统的校正可以通过直接校正对角耦合传递函数来实现．单入单出系统的所有方法都适用于文中方法．给出了两个例子来说明这一新的多变量系统设计方法．
An Interaction Transfer Function (ITF) is introduced. It is proved that the determinant of the return difference matrix can be expressed by production of a series of factors using Interaction Transfer Function. The stability of the multivariable systems can then be determined from the Nyquist Loci of some diagonal ITFs. A multivariable system can be compensated by the diagonal ITFs of the ITF matrix directly. Good performance of the compensated system is expected as ITFs are closely related to the closed loop transfer functions. All techniques used in the single input single output (SISO) systems design can be used in the ITF technique. ITFs can be easily calculated by using the CAD technique. ITF can also be determined by test as they are of actual physical significance. Two examples are given to show the application of this new design method.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
1999年第5期636-640,共5页
Journal of Xidian University
关键词
多变量系统
稳定性
频域方法
耦合传递函数
multivariable control system
stability
integrity
frequency method
