In this paper, the fractional tracking control problem is discussed. The fractional tracking control problem is the problem to determine a tracking controller that satisfy a fractional dynamic system that drive an initial state to a desired state such that a corresponding performance index is minimized. The main goal of this paper is to find the optimal tracking controller for the fractional tracking control problem in which the fractional derivative is Caputo type. The desired result is obtained by constructing the fractional Euler-Lagrange equation for the corresponding fractional variational problem. The result of this paper is given in a proposition that mention the existence of the optimal tracking controller for the fractional tracking control problem in Caputo derivative sense. An application of fractional tracking control in controlling glucose levels in the blood for diabetics is presented. By using this optimal tracking controller, the desired glucose level in the blood can be achieved.

1.
Y.
Li
and
Y.Q.
Chen
, “
Fractional Order Linear Quadratic Regulator
”,
In Proceeding of IEEE/ASME International Conference on Mechtronic and Embedded Systems and Applications
,
Beijing
,
2008
.
2.
D.
Sierociuk
and
B. M.
Vinagre
, “
Infinite Horizon State-feedback LQR Controller for Fractional Systems
”,
In Proceeding of 49th IEEE Conference on Decision and Control
,
Atlanta
,
2010
.
3.
Y.H.
Lan
and
X.
Liu
, “
Infinite horizon optimal repetitive control of fractional-order linear systems
”,
Journal of Vibration and Control
,
22
(
8
),
2083
2091
(
2015
).
4.
G. M.
Bahaa
, “
Fractional optimal control problem for infinite order system with control constraints
”,
Advances in Difference Equations
,
250
,
1
16
(
2016
).
5.
O.M.
Fuentes
and
R.M.
Guerra
, “
A novel Mittag–Leffler stable estimator for nonlinear fractional-order systems: a linear quadratic regulator approach
”, in
Nonlinear Dynamics
,
94
,
1973
1986
(
2018
).
6.
M. I.
Gomoyunov
, “
Optimal control problems with a fixed terminal time in linear fractional-order systems
”,
Archives of Control Sciences
,
30
(
4
),
721
744
(
2020
).
7.
M.
Yavari
and
A.
Nazemi
, “
On fractional infinite-horizon optimal control problems with a combination of conformable and Caputo–Fabrizio fractional derivatives
”,
ISA Transactions
,
101
,
78
90
(
2020
).
8.
F.
Liao
and
H.
Xie
, “
Preview tracking control for a class of fractional order linear systems
”,
Advances in Difference Equations
,
472
,
1
19
(
2019
).
9.
I.Y.S.
Chavez
,
R.M.
Menendez
and
S.O.M.
Chapa
, “
Glucose optimal control system in diabetes treatment
”,
Applied Mathematics and Computation
,
209
,
19
30
(
2009
).
10.
A.
Kouidere
,
A.
Labzai
,
H.
Ferjouchia
,
O.
Balatif
and
M.
Rachik
, “
A new mathematical modeling with optimal control strategy for the dynamics of population of diabetics and its complications with effect of behavioral factors
”,
Journal of Applied Mathematics
,
2020
,
1
12
(
2020
).
11.
I.
Podlubny
.
“Fractional Differential Equations”
,
Academic Press
,
California
,
1999
.
12.
C.A.
Monje
,
Y.
Chen
,
B.M.
Vinagre
,
D.
Xue
and
V.
Feliu
. “
Fractional order Systems and Controls
”,
Springer
,
New York
,
2010
.
13.
J.
Zhang
,
X.
Ma
and
L.
Li
. “
Optimality conditions for fractional variational problems with Caputo-Fabrizio fractional derivatives
”, in
Advances in Difference Equations
,
2017
,
357
(
2017
).
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