| Summary: | 碩士 === 國立中央大學 === 資訊及電子工程研究所 === 82 === In this thesis,an algebraic approach to robust H-infinity
control system is proposed.Firstly,a system with time-varying
norm-bounded parameter uncertainty is considered.We also derive
the dynamic output feedback controller based on the observer-
estimator in order to stabilize the linear continuous-time sys-
tems with time-varying norm-bounded uncertainties and,at the
same time,to achieve the H-infinity disturbance attenuation
under a prescribed level r,as well. Next,the discrete-time
systems with time-varying norm-bounded parameter uncertainties
is considered.We also derive a suffici- ent condition for
obtaining the state feedback controller sati- sfying the robust
stability and H-infinity constraint. At last,we consider the
system with real-parameter uncertain- ties and unmodeled
dynamics.We have another H-2 performance requirement in
addition to the stability and H-infinity constr- aint for such
system.Here,we derive a system of four coupled modified
Riccation equations for obtaining the compensator satisfying
our design criteria.
|
|---|
