Robust and Non-fragile H∞ Control for
Descriptor Interval Systems
Robust H∞ controller has achieved fruitful research results since it was brought
forward in 1980s by Zames. However, due to various outside uncertainties, controller
parameters are also may be changed, and the changes will cause the system instability, then,
the non-fragile controller was first proposed by Keel in 1997. Robust and non -fragile H∞
control theory not only study the uncertainty of the systems, but also consider the
controller, has now become one of the important theory in the stability research of systems.