Authors:
George Papageorgiou,
Keith Glover,
Glenn D'Mello,
Yoge Patel,
Volume: 1, Page 4558 Paper number 40
Abstract:
This paper describes the application of a new multivariable control
system design procedure, linear parameter-varying (LPV) H-infinity
loop shaping, to design a flight controller for the pitch dynamics
of the Vectored thrust Aircraft Advanced flight Control (VAAC) Harrier.
The particular LPV design procedure used was developed by Papageorgiou
and Glover and is an advancement of the H-infinity design method successfully
flight tested in 1993 on the VAAC Harrier in that the control laws
are automatically scheduled over the flight envelope. Automatically
scheduled control laws are a strong and very likely candidate for the
next generation of flight control systems (FCS). The flight test of
the LPV controller described here is the first of its kind in the international
aerospace community and is recognised as a key milestone in the general
development of next generation FCS design methods.
Authors:
G. Iuliana Bara,
Jamal Daafouz,
José Ragot,
Frédéric Kratz,
Volume: 1, Page 4565 Paper number 1367
Abstract:
In this paper, the design of a scheduled observer which allows to estimate
the state of an affine LPV system is investigated. The state and the
gain matrices of the observer are scheduled by using an interpolation
method which is linear according to each parameter but which is nonlinear
according to the parameter vector. The stability of the estimation
error is based on the existence of an affine parameter-dependent Lyapunov
function. The problem of the observer design and the existence of a
such Lyapunov function is interpreted as an LMI feasibility problem
with a rank constraint. An example is presented.
Authors:
Jamal Daafouz,
G. Iuliana Bara,
Frédéric Kratz,
José Ragot,
Volume: 1, Page 4571 Paper number 1051
Abstract:
This paper investigates a state observation design problem for discrete
time linear parameter varying (LPV) systems. The main contribution
of this paper consists in providing an interpolation scheme to build
the LPV observer. We show that an appropriate choice of the interpolation
functions allow to use available quadratic stability conditions to
design an LPV observer.
Authors:
Gustavo Belforte,
Paolo Gay,
Volume: 1, Page 4573 Paper number 1273
Abstract:
In this paper discrete time linear parameter varying (LPV) models with
finite impulse response (FIR) dynamic structure are considered. Measurement
errors are assumed to be bounded and in such condition the worst case
parameter estimate errors are derived together with the input sequences
that allow their determination. The main result of the paper consists
in showing that the optimal input design of LPV-FIR models is achieved
combining the available results on optimal input design for invariant
FIR models with the results on optimal input design for static blocks.
Authors:
Fen Wu,
Volume: 1, Page 4578 Paper number 2144
Abstract:
A new approach for LPV system analysis and control synthesis was proposed
in this paper. This unified framework combined two seemingly diversified
methods in systematic gain-scheduling, LPV control theory, and extended
the applicability of full block S-procedure to general LPV systems.
|