Conference Program of WCICA 2012

WCICA 2012
Book of Abstracts: Saturday Sessions
◁ PSaA-15
Multivariable Generalized Predictive Control Based on Receding Feedback
Correction in Binary Distillation Process, pp.1098–1102
Li, Chaochun
Tao, Lili
Cheng, Hui
Qi, Rongbin
Qian, Feng
East China Univ. of Sci. & Tech.
East China Univ. of Sci. & Tech.
East China Univ. of Sci. & Tech.
East China Univ. of Sci. & Tech.
East China Univ. of Sci. & Tech.
An improved generalized predictive control (GPC) algorithm has been
proposed in this paper. In order to cut off computation burden and get
good performance of disturbance rejection, receding feedback correction
mechanism is used to reject the disturbance instead of the traditional
online identification mechanism. Furthermore, two factors are
presented to tune for good dynamic performance. Simulation has been
carried out with a binary distillation process model, named wood& berry
model, which is a typical multivariable process. The simulation result
proves the efficiency of proposed algorithm.
◁ PSaA-16
Nonlinear PID Synchro Control on Broaching Machine with Dual Cylinder,
pp.1124–1129
Ni, Jing
Shao, Bin
Chen, Guojin
hang zhou dianzi univeristy
hangzhou dianzi Univ.
hang zhou dianzi univeristy
In view of the shortcomings on synchro-motion of slide carriage in
hydraulic broaching machine driven by single cylinder, an electrohydraulic
servo system with dual cylinder is designed and its nonlinear
model was presented. Then the theory of taylor expansion to second
order of output vector, optimal control and nonlinear disturbance
observer designing are introduced, and a nonlinear PID synchro controller
for electro-hydraulic servo system with dual cylinder is provided
on the basis of tracking and synchronization index. The simulation and
factual application in hydraulic broaching machine show that the proposed
controller has better tracking and synchronization performance
than conventional PID controller. The nonlinear PID synchro-controller
is effectively for electro-hydraulic servo system with dual cylinder in hydraulic
broaching machine.
◁ PSaA-17
Controllability and Observability of Matrix Riccati Type Differential Systems,
pp.1135–1138
Xu, Dengguo
Chuxiong Normal Univ.
This paper is concerned with the controllability and observability for a
class of matrix Riccati type differential systems. The solution of such
matrix systems is obtained via using variation of parameters. Meanwhile,
the sufficient and necessary conditions for state controllability
and state observability of such systems are established.
◁ PSaA-18
Robust Non-fragile Control for Non-linear Singular Discrete Systems
with Time-delay, pp.1139–1143
Fu, Xingjian
Liu, Xiao He
Hou, Ming
Li, Yingchun
Beijing Information Sci. & Tech. Univ.
Information Sci. & Tech. Univ., Beijing
Beijing Information Sci. & Tech. Univ.
North China Inst. of Astronautic Engineering
This paper mainly studies the problem of designing a non-fragile robust
controller for a class of singular discrete non-linear systems with delayed
state and uncertainties. Based on Lyapunov stability theory and
linear matrix inequality (LMI), LMI-based sufficient condition for the singular
discrete nonlinear systems to have robust performance is derived.
The condition enables us to determine robust stability of time-delay uncertain
singular systems easily by solving the LMI. Furthermore, the
non-fragile controller is designed to guarantee that the closed loop system
is regular, causal and stable for a class of singular discrete nonlinear
systems. This new non-fragile control approaches can yield less
conservative result than the simultaneous stability approaches. At last,
a numerical example is included to illustrate the efficiency o f the proposed
approaches in this paper.
◁ PSaA-19
The Analysis and Design of Diphasic Pacemaker Pulse System Based
on Microcontroller, pp.1192–1195
Xu, Longjian
Zhang, Houwu
Yao, Kaixue
Guizhou Univ.
Guizhou Univ.
Guizhou Univ.
With the purpose of replacing traditional defibrillation which can bring a
lot of shortcomings, the research of new treatment modalities for AF has
become an inevitable choice. Designed a diphasic pacemaker pulse
stimulation, Adopt low energy terminate treatment to patients. The system
has digital FM, Am and other auxiliary functions to meet the needs
of different conditions. Through the LCD and displayed the related parameters
directly to users, making it more convenient and user-friendly.
with some innovative and practical value.
◁ PSaA-20
Design And Implementation of a Constant Selling Oil Automatic System
Based on Fuzzy PID Algorithm, pp.1207–1211
WANG, LI
ZHAO, ZHENG
Henan Univ. of Tech.
Henan Univ. of Tech.
In this paper, we propose a novel strategy to design a reliable and
practical constant selling oil automatic system ,through the use of S7-
226PLC, flow meter, inverter and other hardware devices. A kind of
fuzzy PID control algorithm was researched to guarantee the system
accuracy. The fuzzy PID controller can control the inverter output frequency
by changing the voltage of the inverter and self-tuning PID parameters
(Kp, Ki, Kd), and thus it controls the pump speed to achieve
the demanded accuracy of the constant selling oil. Finally ,the paper
adopted C#.NET technology to design the management software. The
software can accomplish system functions such as communication with
PLC,realization remote control, data management and others. Experimental
results and field running shows that the system achieves the
accuracy,security and energy saving demands of the constant selling
oil automatic system, also obtains a satisfactory control effect.
◁ PSaA-21
Research on the Brittleness Problem of Power System with Wind
Turbine Generator System Based on the Cellular Automata Theory,
pp.1218–1223
Guo, Jian
Yang, Yong
Harbin Engineering Univ.
Harbin Engineering Univ.
The wind turbine generator system (WTGS) is connected to the grid
from one point of power system. When the faults of power grid occur,
the behavior of WTGS has an important influence on motivating the
brittleness of power system. The model of power system with WTGS
is built up by using cellular automata theory. Taking IEEE standard-6
node power system for example, based on the presented algorithm and
steps, the brittleness problem of power system with WTGS is studied.
With the number and low voltage ride through (LVRT) of WTGS being
connected to grid considered, the analysis and conclusion are also given.
The presented method can provide help for choosing the types of
WTGS to the grid in reality.
◁ PSaA-22
Bifurcation and stability study in coupling nonlinear rotating machinery’
s systemunder the influence of time-varying stiffness, pp.1263–1268
Liu, Shuang
Li, Yanshu
He, Minjia
Wang, Bohua
Liu, Bin
Yanshan Univ.
Yanshan Univ.
Yanshan Univ.
Yanshan Univ.
Yanshan Univ.
Abstract - Considering unstable oscillation in the process of rotating
machinery caused by changing in load lubrication and gear meshing
stiffness in shaft system, the coupled nonlinear dynamic equation of
rotating mechanical drive system is established with time-varying stiffness
and nonlinear friction force based on Lagrange theory. The average
equation of system is solved with the aid of method of multiple
scales. Besides, according to Hopf bifurcation theory the stability of
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