Conference Program of WCICA 2012

Conference Program WCICA 2012
Electric load forecasting based on improved LS-SVM algorithm,
pp.3064–3067
Yan, Gang
Tang, Gao-hui
Xiong, Ji-ming
Central South Univ.
Hunan Univ. of finance & economics
Hunan Univ. of finance & economics
An Improved least squares support vector machine (LS-SVM) algorithm
is proposed for 24 points electric load forecasting. First of all, facing
with the problem how to choose the optimal LS-SVM algorithm parameters,
an improved LS-SVM algorithm based on chaos optimization is
put forward to obtain the optimal LS-SVM algorithm parameters and
corresponding model parameters. Then, a method of 24 points electric
load forecasting based on the improved LS-SVM algorithm is presented,
which makes 24 points forecasting models respectively. Compared
with the RBF neural network method, the prediction accuracy of the
proposed method is better than that of neural network method, so the
validity and the superiority of the proposed method are proved.
◁ PSaA-70
Identification of dynamic parameters and friction coefficients for a
heavy-duty hydraulic manipulator, pp.3102–3106
Li, Bo
Yan, Jun
Guo, Gang
Wang, Haito
Zhang, Meijun
PLA Univ. of Sci. & Tech.
PLA Univ. of Sci. & Tech.
Engineering Inst. of Corps of Engineer, PLA Univ.
of Sci. & Tech.
Engineering Inst. of Corps of Engineer, PLA Univ.
of Sci. & Tech.
Engineering Inst. of Corps of Engineer, PLA Univ.
of Sci. & Tech.
This paper investigates the dynamic parameter identification of a single
heavy-duty hydraulic manipulator, as well as the estimation of coefficients
of nonlinear friction model for the hydraulic cylinder. The conventional
recursive least square method and generalized least square
method are adopted respectively. Comparison results show that the
prediction error of the generalized least square method is reduced by
41% to the conventional recursive least square method; it is more robust
to the colored system noise.
◁ PSaA-71
Classifying imbalanced dataset based on minority detection, pp.3236–
3241
Liu, Tong
Shandong Univ. of Sci. & Tech.
Classifying imbalanced dataset has recently become an important
problem in many industrial and financial applications. In this paper,
a novel method for combing minority detection algorithm and solving
optimization problem to classify imbalanced data set was presented.
We empirically evaluate the proposed approach using a number of UCI
data sets, and experiment results show that our novel method is superior
to the state-of-the-art methods in the literature and scales well to
large, high dimensional databases
◁ PSaA-72
PID Fault Tolerant Control System Design with Multi-performance indices
Constraints, pp.3286–3291
Feng, Zhimin
Zhang, Gang
Ningbo Univ.
ningbo Univ.
The paper discussed the problem of PID fault tolerant control system
design for linear systems with state and static output feedback. Based
on linear matrix inequality approach, the consistency theory on circular
pole index, steady variance index and H-infinity constraints is set
up, and the ranges of consistent indices are analyzed in detail. Furthermore,
the effective controller design method for systems with constrains
of consistent indices is provided. A simulation example shows the efficiency
of the design method.
◁ PSaA-73
Fault Diagnosis of Induction Motor Rotor Based on BP Neural Network
and D-S Evidence Theory, pp.3292–3297
Zhang, Lieping
GuiLin Univ. of Tech.
WANG, Shoufeng
Guilin Univ. of Tech.
Directing to the shortage of single method of BP neural network or D-
S evidence theory in rotor fault diagnosis, a fault diagnostic method
for induction motor rotor was proposed, which was based on BP neural
network and D-S evidence theory. The BP neural network method
was applied to the fault diagnosis firstly, and then, the partial diagnostic
results of BP neural network were taken as the basic probability assignment,
finally, the D-S evidence theory was applied to fuse different
results from all the neural networks and got the finally diagnostic results.
The experiment simulation results of fault diagnostic example show
that the method is available for the induction motor rotor fault diagnosis
and has better classified diagnosis ability than single fault diagnostic
method.
◁ PSaA-74
Generalized Canalizing Mapping and Its Applications, pp.2376–2381
Qi, Hongsheng
Chinese Acad. of Sci.
Canalizing mapping of k-valued and mix-valued logical functions are
proposed, which are the generalized canalizing functions/mappings of
Boolean functions to general logical functions. The verification and
some basic properties are investigated and the related formulas are
obtained. Then its two applications are investigated:(1) Stabilization
of logical dynamic networks: Based on canalizing mapping, certain design
technique for stabilizers is proposed. (2) Disturbance decoupling of
logical dynamic networks: Canalizing mapping provides an easy way to
construct a control, which solves the disturbance decoupling problem.
◁ PSaA-75
Design and Realization of S7-200 as Modbus-RTU Master Station,
pp.3322–3325
Si, Wenhui
Wei, Jianping
Shandong Jiaotong Univ.
Shandong Jianzhu Univ.
The paper introduces a design method that the S7-200 PLC uses as a
modbus RTU master station. According to the free-port communication
protocol of Port 0, the part functions of modbus RTU master station are
realized by program. The details of the program will be discussed and
explained carefully in the paper.
◁ PSaA-76
Experimental Validation of a Trajectory Planning Method with Continuous
Acceleration Implemented on a DSP-Based Motion Controller,
pp.3326–3330
Qiang, Yanhui
Inst. of Automation, Chinese Academay of Sci.
A trajectory planning method in joint space which provides a continuity
of position, velocity and acceleration just with simple numerical simulations
was already presented by us before. This paper, therefore,
presents techniques in detail for implementation of it. To guarantee
high performance, a novel DSP-based multiaxis motion controller is developed
for executing the trajectory planning method on-line. Hardware
design and software design of the motion controller is described. Finally,
the proposed trajectory planning method is tested based on the
proposed motion controller for an arc welding robot. Experimental results
and performances evaluation are also presented in this paper.
◁ PSaA-77
Cascade PID control of desuperheating water system of supercritical
power generation unit once-through boiler, pp.3369–3371
Du, Ronghua
Zhang, Pengtao
Wang, Hongbin
Guo, Ruijun
Inner Mongolia Electric Power Sci. Research Inst.
Inner Mongolia Electric Power Sci. Research Inst.
Inner Mongolia Electric Power Sci. Research Inst.
Inner Mongolia Electric Power Sci. Research Inst.
The stability control problem of desuperheating water system of supercritical
power generation unit once-through boiler is studied. The
cascade PID control strategy is adopted and applied to desuperheating
water control system. Because the valve opening of the desuperheating
water regulator can be adjusted in real time with the unit load changing,
the controlled system can maintain the main steam temperature in a
stable working condition, ensures the security and stability of unit oper-
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