Conference Program of WCICA 2012

WCICA 2012
Book of Abstracts: Saturday Sessions
Parameters Estimation of BLDC Motor for Energy Storage System,
pp.4190–4194
Wu, Junfeng
Changchun Inst. of Optics,Fine Mechanies &
Physics
This paper presents a statistical method to estimate the parameters of
the brushless dc (BLDC) motor of a flywheel system for energy storage.
The principle of the estimation is based on least square estimation under
a reasonable constraint. Method is suitable to avoid using complicated
test apparatus. Torque constant, static friction coefficient, vicious
friction coefficient and inertia moment can be estimated. Furthermore,
copper loss, iron loss, mechanical loss and other loss can be computed
from these estimation and measurement data. By the proposed
method, it is demonstrated experimentally that accuracy estimation can
be achieved.
◁ PSaA-62
The Design and Implementation of Metro Carriage LED Controller Software
Based on Ethernet, pp.4201–4205
Liu, Quanli
Bian, Mingkun
Wang, Wei
Dalian Univ. of Tech.
Dalian Univ. of Tech.
Dalian Univ. of Tech.
Currently, most LED controllers for the metro carriage display are driven
directly by I/0 of MCU and the display interface is very simple, therefore
it’s difficult to meet the multiform requirements of video terminal.
In order to meet this requirement, this paper designed the software
system of new type metro display LED controller based on Ethernet,
analyzed its function and achieved an implementation. This new type
metro display LED controller takes Linux and Qt system as a developing
platform and communicated with TCMS in process data and message
data through the Ethernet. This new type metro display LED controller
has been applied to a driverless metro and the result shows that its
response speed is fast and its display effect tends to be diversiform.
◁ PSaA-63
Conducted EMI Measurement and its Suppression Measure of Elevator
System, pp.4226–4229
Wen, Xiao-Qin
South China Univ. of Tech.
With widely use of high –speed power switching devices, EMI problems
of Elevator system become more serious. It discussed the interference
noise of PWM inverters, and the main noise of converter is
conducted interference and Radiation interference. Then the measurement
method of conducted EMI is proposed and use it with real elevator
system. Lastly the suppression of common mode EMI in PWM inverter
is revealed, and give some suggests for engineering praceice.
◁ PSaA-64
Modeling of Belt Conveyor System based on Least Square Support
Vector Machine, pp.2944–2948
Chen, Wei
Li, Xin
Hefei Univ. of Tech.
hfut
The paper presents nonlinear modeling study of belt conveyor system
using the least square support vector machine (LS-SVM). Belt conveyor
is a nonlinear, severe disturbance and time-varying system. So far,
most of the existing models are based on mechanism laws, which are
very useful for belt conveyor design. However, they are too complicated
to be applied to control system design. To facilitate a valid control
strategy design, this paper tries to avoid the internal complexities and
presents a black-box model of the belt conveyor based on LS-SVM.
The simulation tests reveal that it is feasible to establish the model using
LS-SVM. Compared with the models based on the NARMA model
using least square method, the simulation results are shown that the
model based on LS-SVM algorithm is superior to nonlinear regression
analysis in data fitting.
◁ PSaA-65
Polynomial process algebra, pp.3004–3007
Liu, Bai
Chinese Acad. of Sci.
In this paper we present a polynomial process algebra (PPA) like basic
process algebra which can be used to model both polynomial behavior
of parallel systems. It provides a nature framework for the concurrent
composition systems, and can deal with the nondeterministic behavior.
This process algebra is obtained by the polynomial transition systems
which we defined. In this paper we concentrate on giving the syntax
and semantic, and meanwhile defining the bisimulation equivalence. In
the last we give an example to illustrate it.
◁ PSaA-66
Fuzzy Systems-Based Adaptive Fault-Tolerant Dynamic Surface Control
for a class of High-order Nonlinear Systems with Actuator Fault,
pp.3013–3018
Shen, Qikun
Jiang, Bin
Zhang, Tianping
Yangzhou Univ.
Nanjing Univ. of Aeronautics & Astronautics
Yangzhou Univ.
The problem of adaptive fault-tolerant dynamic surface control (DSC)
for a class of high-order nonlinear uncertain systems with actuator fault
is discussed, and a novel design scheme of adaptive fuzzy controller is
proposed in this paper. First, the approach removes the condition that
the upper or low boundary of fault is known. Moreover, the problem of
explosion of complexity in traditional backstepping design is overcome
by introducing the first order filter, and the possible controller singularity
in feedback linearization is avoided without projection algorithm.
In addition, the approach removes the assumption that the control coefficients
are known exactly or unknown but lower bounded by known
positive constants. By theoretical analysis, the closed-loop systems is
shown to be semi-globally uniformly ultimately bounded, with tracking
errors converging to a small neighborhood of origin by appropriately
choosing design constants. Finally, simulation results demonstrate the
effectiveness of the proposed method.
◁ PSaA-67
A Green Wave Band Model Considering Variable Queue Clearance
Time, pp.3025–3030
Wang, Shi Ming
Xu, Jian-min
Yang, GuiGen
Chen, ChangJia
South China Univ. of Tech.
South China Univ. of Tech.
Public Security Office of Guangdong Province
Sun Yat-sen Univ.
The variable queue clearance time model is derived by anngalyzing
the relation between the adjacent upstream intersection’s departure
traffic flow pattern and the offset time. To take the variable queue clearance
time into consideration, the proposed revised MAXBAND model
combines the variable queue clearance time model and traditional
MAXBAND model. After the process of variant substitute, the revised
MAXBAND model can still be solved by classical MILP solution method.
An example with two intersections is given, and the results of the proposed
model and simulation indicate that, the revised model is better
than traditional model in arterial control since the consideration of variable
queue clearance time. In the example arterial, the revised model
increases the effective green-wave bandwidth by 31.6%, and decreases
the average arterial delay by 12.6%.
◁ PSaA-68
Key Technology Research on Fault Detection and Diagnosis for Brokenwing
Small Unmanned Aerial Vehicle, pp.3049–3052
Huang, Junjie
Shanghai Univ.
An accident with any component failure of the small unmanned aerial
vehicle (SUAV) will happen in the operation process. At present the
sensor and actuator faults are mostly studied and the damaged body
considers very few. The research status of the air dynamics and fault
detection and diagnosis (FDD) are firstly introduced in the paper. The
methods of the pneumatic parameters and properties on the brokenwing
SUAV and the key technologies of FDD are analyzed. At last the
experiment of the broken-wing SUAV is established by using the FDD
subsystems. A specific plan and research methods is provided through
the paper. Meanwhile it provides the theory and research foundation
for reconstruction control system.
◁ PSaA-69
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