Conference Program of WCICA 2012

Conference Program WCICA 2012
reservoirs, and has a wide application prospect.
◁ PFrB-09
Output Feedback Organically-Structured Control of Expanded Power
System based on Parameter Optimization, pp.2085–2090
Li, Xiaohua
Xu, Yanying
Univ. of Sci. & Tech. Liaoning
Univ. of Sci. & Tech. Liaoning
A new optimized organically-structured control method combined with
the dynamic output feedback and genetic algorithm is proposed for automatic
generation control (AGC) design of interconnected power system
with the extension structure. Genetic algorithm is used to optimize
the related parameters emerged in the process to solve the controller
based on the dynamic output feedback control of the system with the
extension structure. The blindness to choose the parameters is avoided.
The fitness function evaluating synthetically the time domain response
performance is chosen, and the constraint matrix is optimized in
the design. The simulation research is done against a kind of interconnected
power system model. Consider a new area subsystem is add to
original system on line, the automatic generation control law of the new
area is designed by using the proposed method. The simulation results
show that the control performances optimized by genetic algorithm are
better than the before, and the effectiveness of this method is proved.
◁ PFrB-10
A Unified Control Design for A Class of Discrete-Time Markov Jump
Systems: A Game Approach, pp.2130–2135
Hou, Ting
Zhang, Weihai
Ma, Hongji
Shandong Univ. of Sci. & Tech.
Shandong Univ. of Sci. & Tech.
Shandong Univ. of Sci. & Tech.
This study is devoted to investigating the inherent relationship among
the H 2 , H ∞ , and H 2 /H ∞ control design for discrete-time Markov
jump systems with multiplicative noise. From a new perspective of
nonzero-sum Nash game, we will show that the Nash equilibrium solution
may present a unified treatment approach for these three types
of controller design by taking adequate parameters in the quadratic performance
indices. A numerical example is also supplied to illustrate the
proposed results.
◁ PFrB-11
Based on (w,z) parameter attitude stability control of axisymmetric 3D
pendulum, pp.2160–2164
Lv, Wenjun
GE, Xinsheng
Beijing Information Sci. & Tech. Univ.
Beijing Information Sci. & Tech. Univ.
This paper studies attitude control problem of axisymmetric 3D pendulum
based on (w,z). 3D rigid pendulum (that is, put three-dimensional
rotation) composed by a frictionless rigid body of fixed-point supported.
When axisymmetric case, the symmetry axis is the inertia axis for the
rigid body , the 3D rigid pendulum is axisymmetric 3D pendulum. According
to its center of mass and friction-free fulcrum fixed relative position,
axisymmetric 3D pendulum can be divided into two cases: one
is the center of mass below the pivot, that is hanging posture; the other
is the center of mass above the pivot, that is the inverted posture. As
the Euler angle existed singularity problems, a new attitude described
method was introducted, that is (w,z) parameter description. And argued
the attitude kinematics equation of axisymmetric 3D pendulum,
given the direction cosine matrix by the (w,z) parameters described in .
At the same time the use of (w,z) parameters, design a new control law
makes the axisymmetric 3D rigid body placed in its inverted position
asymptotically stable . Simulation results also verify the control method
effect for axisymmetric 3D pendulum .
◁ PFrB-12
Bus Rapid transit (BRT) Parallel System Based on ACP Approach,
pp.2485–2490
Dong, Xisong
XIONG, Gang
Dong, Fan
Zhu, Fenghua
Inst. of Automation, Chinese Acad. of Sci.,
Inst. of Automation,Chinese Acad. of Sci.
CAISA
Inst. of Automation, Chinese Acad. of Sci.
Bus Rapid Transit (BRT) is an effective way to improve urban traffic status.
But, because of its complexity, it is difficult in its operation management
and scheduling. In this article, based on ACP approach, Parallel
BRT System is constructed, which can detect real-time passenger flow
at stations, traffic flow at stations and intersections and queuing length
of vehicles on the road; to provide short-term passenger and traffic saturation
prediction in order to timely arrange transportation management
and relieve congestion; to assess, improve and optimize the emergency
management of holidays, events, accidents and other emergencies;
to improve the quality of real-time scheduling functions based on the
measurement results detected from videos, and so on. This system
has been applied in Guangzhou Zhongshan Avenue BRT, which was
applied for BRT’s monitoring, warning, forecasting, emergency management,
real-time scheduling and other needs, to guarantee BRT’s
smooth, safety, efficiency and reliability.
◁ PFrB-13
Analysis and Optimum Design of Loop Filter in GNSS Receiver,
pp.2491–2496
Jiang, Yi
Zheng, Kai
Dalian Maritime Univ.
Dalian Maritime Univ.
The design of loop filter is very important in GNSS receivers. According
to design methodology and filter coefficient calculation method, the performance
of four filter design methods are analyzed and discussed for
frequency response, loop bandwidth and noise equivalent bandwidth.
The range of BNT in different methods and deviation of ideal noise e-
quivalent bandwidth are investigated by simulation. According to the
simulation results, the optimal loop filter design in GNSS receiver is
given. The conclusions can be used for GNSS receiver loop design.
◁ PFrB-14
Optimization Target Resetting Distributed Model Predictive Control for
Accelerated Cooling Process , pp.2764–2769
Zheng, Yi
Li, Shaoyuan
Wang, Xiaobo
GE-Global Research (Shanghai)
Shanghai Jiao Tong Univ.
BAOSHAN IRON & STEEL CO.,LTD. Research
Inst.
In accelerated cooling (ACC) processes–large scale systems, since the
starting temperature varies along plate, the cooling curves of platepoints
are different to each other for obtaining the uniform characteristic
of the whole plate. To satisfy the complicated control targets–the various
cooling curves, and real-time control requirement, an novel method
called Optimization Target Resetting Distributed Model Predictive Control
(OTR-DMPC) is proposed. In this method, the whole system is
divided into many subsystems, and each subsystem is controlled by a
local Model Predictive Control (MPC) to decrease the computation cost.
And neighborhood optimization is used to coordinate subsystem-based
MPC to guarantee the global performance. Meanwhile, the optimization
target of each subsystem-based MPC is recalculated in each control
period according to the current starting temperature. The experimental
results show the efficiency of the proposed method.
◁ PFrB-15
A New Solution to Weapon-Target Assignment Problem, pp.384–387
Wang, Rui
Xi’an Hi-Tech. Inst.
Wang, Zhengyuan 11
Liu, Guoqing
The Second Artillery Engineering College
Liu, Lingxia 11
Wang, Guohua 11
Zhang, Xinyu 11
Weapon-target assignment problem (WTA) is NP. A new solution is proposed
to WTA according to its feature. Firstly, an initial solution created
by heuristic rules is regarded as the current best approximation, then
multi-point adjustment is adopted to search better solution in the neighbour
of the current best approximation. The current best approximation
will be updated by the better solution searched. So it is improved by
repeated iteration step by step and better approximation is achieved at
last. Experimented results show that the the heuristic solution to WTA
proposed here can get high quality solution and it is valid.
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