Conference Program of WCICA 2012

Conference Program WCICA 2012
proposed to detect the maneuver. Once the maneuver is detected,
the augmented state vector and covariance matrix is compensated so
that the modified model can match the actual motion mode. Simulation
results show that this algorithm improves the accuracy of tracking
by selecting the matching filter depending on the different mode of the
target as well as modify the tracking state in real time.
◁ PFrA-13
Consensus of multi-agent systems with time delay based on nonlinear
algorithm, pp.1628–1633
Liang, You-ming
Liu, Chenglin
Liu, Fei
Inst. of Automation, Jiangnan Univ.
Jiangnan Univ.
Jiangnan Univ., China
Based on nonlinear coupled algorithm, consensus problem of first-order
multi-agent systems with time-varying input delay is investigated. Firstly,
by utilizing Lyapunov theorem and LaSalle invariance principle, sufficient
consensus condition for the multi-agent systems is obtained when
the directed interconnection topology is strongly connected. Secondly,
the above conclusion is extended to the case of weakly connected digraph
by applying algebraic graph theory and matrix theory. Lastly,
computer simulation examples are presented to demonstrate the effectiveness
of the obtained results.
◁ PFrA-14
Structured Singular Value Synthesis Based Low Power Level Steam
Generator Water Level Controller Design , pp.1661–1665
ZHOU, Shiliang
Liu, Yuyan
Hao, Zulong
North China Electric Power Univ.
North China Electric Power Univ.
North China Electric Power Univ.
A Uncertainty kinetic model of feed water value position to steam generator
water level plant is built. The derived model can express uncertainty
in quantitative manner, including parameter perturbation and unmodeled
dynamic due to operation condition change of steam generator
and feed water pump. Then a robust controller is designed using the
derived model based on structured singular value synthesis method.
Robust stability and robust performance of the water control system can
be guarantee under parameter perturbation and unmodeled dynamic if
suitable performance weight functions are chosen. Simulation result
shows that good control performances are obtained under all combinations
of steam generator operation condition and feed water pump
operation condition.
◁ PFrA-15
The study of a new Call Admission Control method Based on selfsimilar
traffic, pp.15–19
Hu, Yanpu
Yang, WenFu
Wang, Yong
Dong, Ying
JiLin Univ. .china
School of Communication Engineering, Jilin Univ.,
Changchun, China
JiLin Univ. .china
School of Communication Engineering, Jilin Univ.,
Changchun, China
With the rapid development of the network, more and more new kinds
of network traffic emerge in the network. These new traffic exhibit
the properties of self-similarity and long-range dependence. Connection
Admission Control (CAC) is one of the important mechanisms for
guarantee the QoS while improving the utilization rate high-efficiently.
At first, self-similar traffic service model based on CAC scheme in this
paper are studied. And then the formula for effective bandwidth of admitted
aggregated traffic sources is got. A CAC algorithm of self-similar
traffic based on fairness is proposed. The equality mechanism is introduced
in the admitting deterministic process. Simulation has analyzed
the factors of effective bandwidth and has proved the validity of the algorithm.
◁ PFrA-16
Parameter optimization of PID controller based on Complex System
Genetic Algorithm in Electro-hydraulic Servo Control System, pp.30–
35
Yu, Jue
Xi’an Jiaotong Univ.
Zhuang, Jian
Yu, Dehong
Xi’an Jiaotong Univ.
Xi’an Jiaotong Univ.
In this paper, a novel method for finding a set of appropriative
proportional-integral-derivative (PID) controller parameters in an
electro-hydraulic servo control system is presented. In this method,
a new genetic algorithm called complex system genetic algorithm (C-
SGA) is designed, which integrates complex system theory into genetic
algorithm and redesigns GA’s elements such as selecting operator,
crossover operator and mutation operator. And correspondingly, a performance
criterion including the information of overshoot, rise time, settling
time and steady-state error is also proposed as our fitness function.
Then the application of CSGA to get optimal PID parameters is
described in detail. At last, by the actual compare experiments of using
our proposed method and traditional way in an electro-hydraulic servo
control system respectively, it demonstrates that our method can find
optimal PID parameters effectively and rapidly.
◁ PFrA-17
The Direct Adaptive Fuzzy Robust Control for Satellite Attitude Control,
pp.36–41
Guan, Ping
Zhang, Wei
Liu, Xiao He
Xue, Li
Beijing Institution of Machinery
Beijing Information Sci. & Tech. Univ.
Information Sci. & Tech. Univ., Beijing
Beijing Information Sci. & Tech. Univ.
In this paper, the direct adaptive fuzzy robust control is applied to the
attitude stabilization control of the satellite, and the detailed design procedure
of the fuzzy control system is presented. The controller directly
acting on the controlled system doesn’t require the modeling of the
uncertain nonlinear system. The direct adaptive fuzzy controller is designed
for the satellite, and the robust control term is added to the system
in order to resist the external disturbances. The adaptive law of the
rule parameter is derived. Simulation results show that precise attitude
control is accomplished in spite of the uncertainty in the system.
◁ PFrA-18
The Adaptive Fuzzy Sliding mode control of Hypersonic Vehicle, pp.51–
56
Guan, Ping
Xue, Li
Liu, Xiao He
Wang, Sai
Beijing Institution of Machinery
Beijing Information Sci. & Tech. Univ.
Information Sci. & Tech. Univ., Beijing
Beijing informationSci.&Tech. Univ.
In this paper, the adaptive fuzzy sliding mode control is applied to the
hypersonic vehicle. The detailed design procedure of the fuzzy sliding
mode control system is presented. The adaptive fuzzy control is utilized
to approach the uncertain functions of the hypersonic vehicle and
the adaptive law is derived. According to the tracking errors, weighted
parameters of the fuzzy system are adjusted on-line to enable the
system to approximate the uncertain nonlinear functions effectively.In
addition, a robust controller is employed to enhance the performance
of the whole system. Simulations results show the proposed controller
is robust in the present of the parametric uncertainty and have better
dynamic and static performances.
◁ PFrA-19
Adaptive fuzzy and H∞control of robotic manipulators with uncertainties,
pp.74–79
Liu, Yuliang
Yang, Li
Duan, Hailong
Tianjin Univ. of Tech. & Education
Tianjin Univ. of Tech. & Education
,Tianjin Univ. of Tech. & Education
In this paper, a new adaptive fuzzy and H∞control method of robotic
manipulators with uncertainties is proposed. The control method combines
the fuzzy adaptive control with the H∞control theory for trajectory
tracking of robot manipulators. While establishing the model of the
system, the influence of both the modeling errors and the external disturbances
can be attenuated to a prescribed level. In addition, it is not
necessary for the controller proposed to transform the robotic dynamics
into nonlinear systems, and the controller thus obtained does not contain
the inverse of matrices and can do without singularities. Based on
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