Transcript Dielectrics and Electrical Insulation Research

PROSPECT TOPIC FOR RESEARCH
COLLABORATION BETWEEN IVAT,
UTM AND LTTTPL, UNIVERSITAS
SRIWIJAYA
by
ASSOC.PROF DR ZOLKAFLE BIN BUNTAT
Dielectrics and Electrical Insulation Research
Group
GROUP MEMBER
1. Assoc. Prof. Dr. Zolkafle Buntat
2. Assoc. Prof. Dr. Mohd Afendi Mohd
Piah
3. Dr. Mohd Hafizi Ahmad
Dielectrics and Electrical Insulation Research
Group
1. Characterization of electrical tracking resistance of
polymer nanocomposites in high voltage insulating
applications
Peristaltic
pump
computer
Contaminant
solution
High voltage
transformer
high power
resistor
0 - 10 kV
230 V
supply
insulating
sample
ground
electrode
high voltage
electrode
ADC
Variable
transformer
Overcurrent
relay
measuring
unit
Optical
transceiver
Dielectrics and Electrical Insulation Research
2. Hybrid Wavelet Regrouping Particle Swarm
Optimization Neural Networks for Characterization of
Partial Discharge Acoustic Signals
Dielectrics and Electrical Insulation Research
Group
 Partial Discharge (PD) is an unwanted phenomenon in electrical
equipment. Therefore it is of great importance to identify different
types of PD and assess their severity.
 This research investigates the acoustic emissions associated with
PD from different types of sources in the time-domain and based
on these results a hybrid algorithm combining Particle Swarm
Optimization (PSO) with Wavelet Radial Basis Function Neural
Network (WRBF-PSO-NN) algorithm is applied.
 It is used to detect, identify and characterize the acoustic signals
due to various types of discharge activity that takes place on
polluted insulators used in high voltage systems, and hence,
differentiate abnormal operating conditions from the normal ones.
Dielectrics and Electrical Insulation Research
Group
3.Enhanced Dielectric Properties of Polymer
Nanocomposites for High Voltage Equipment
i) Polymer nanocomposites in high voltage insulation i.e
nano filler, performance, etc
ii) Electrical Treeing Resistance Characteristics of CrossLinked Polyethylene Based Nanocomposites under
Tropical Climate Condition.
iii) Ageing of insulator due to electrical treeing and water
treeing.
OZONE AND PLASMA RESEARCH
1. Herbs and Spices Sterilization
Problem Statement
•
Herbs powder such as aloe vera, Tongkat Ali, Misai Kucing and etc are
mostly beneficial in many applications and it must be sterilized before
being used. The existing technique using steam or autoclaves
treatment is known as the conventional method of sterilization to kill the
microbes in herbs powder. But this system is found to have
disadvantages and this condition will affect the quality of powder. First
of all, the steam sterilization method promotes high humidity and the
powder becomes lumps. Beside that, it takes long time of treatment;
more than 60 minutes and high temperature (120 degrees celcius).
OZONE AND PLASMA RESEARCH
2. Medical Surgery Equipment Sterilization
Problem Statement
Current Method
1. Steam Autoclave- not well suited for heat sensitive materials
and instruments
2. Ethylene Oxide (EtO) Gas- it can leave toxic residues on
sterilized items and it posses several physical and health hazards
to personnel
OZONE AND PLASMA RESEARCH
3. RAIN WATER HARVESTING
Problem Statement
Rain water has been wasted without collection for drinking
purposes.
No proper treatment system for rain water that can be use for
drinking.
OZONE AND PLASMA RESEARCH
4. REMOVAL OF Nox FROM DIESEL ENGINE VEHICLES
Problem Statement
Nox emmision from diesel engine can cause pollution to the
environment.
OZONE AND PLASMA RESEARCH
5. A uniform glow discharge plasma source at atmospheric
pressure
Problem Statement
Uniform glow discharge can be used in many application such as in
biomedical application, water treatment and etc. However, most
common the glow discharge generated is unstable and nonuniform.
OZONE AND PLASMA RESEARCH
6. Development of New Plasma Needle for Biomedical
Application
Problem Statement
Plasma needle currently being used in biomedical application such
as in Dentistry, facial treatment and etc. However, there are space
for improvement in term of efficiencies, cost and etc.
Condition Monitoring and Diagnosis
Division (CMDD)
GROUP MEMBER
Dr. Nor Asiah bt Muhammad
Dr. Lau Kwan Yew
Dr. Yanuar Zulardianshah
Condition Monitoring and Diagnosis
Division (CMDD)
Comprehensive Fault Detection Diagnosis
On Power Transformer Based On
Acoustic Emission Data Using Artificial
Intelligence Technique
Condition Monitoring and Diagnosis
Division (CMDD)
Research Objective
- To develop fault diagnosis system of power transformer
based on acoustic emission data using artificial
intelligence technique.
- To develop an online and real time fault diagnosis system
of power transformer as early failure warning information.
- To develop the power transformer fault location detection
technique.
Condition Monitoring and Diagnosis
Division (CMDD)
Research Methodology
The research methodology of this research work mainly consists of two
sections, namely on line PD monitoring data, DGA results, and artificial
intelligence technique
• On line partial discharge (PD) monitoring using acoustic emission (AE)
sensors
• Dissolve Gas Analysis (DGA) Result
• Artificial intelligence (AI) technique:
i) Particle Swarm Optimization-Artificial Neural Network (PSO-ANN)
Hybrid System
ii)Fuzzy Generic Algorithm – Artificial Neural Network (FGA-ANN)
Hybrid System
Lightning And Energy Security Research
Group
GROUP MEMBER
1. Prof. Dr. Zulkurnain b. Abd Malek
2. Dr. Noor Azlinda Ahmad
3. Dr. Zulkarnain Ahmad Nordin
Lightning And Energy Security Research
Group
Main objectives
1. To conduct a lightning electric and magnetic field measurement in
different locations -IVAT-UNSRI LIGHTNING AND ENERGY SECURITY
PROGRAME
2. To analyse, simulate and investigate the characteristics of measured
lightning electric and magnetic fields in different locations.
3. To photograph lightning discharges using high speed camera.
4. To improve existing lightning protection designs and lightning warning
systems. 5. To develop new models of lightning related components
including the earthing systems.
Lightning And Energy Security Research
Group
Project 1: Lightning measurement and
characterisation
This project investigates the characteristics of lightning electric field for
different type of lightning such as ground discharges and cloud
discharges. For each type of lightning discharge, different process of
the discharge as illustrated by the radiated field will be thoroughly
investigated. The result is essential especially if we were to study the
lightning mechanism and also crucially needed in the development of
lightning locating system. Several aspect will also be considered such
as the location of our measuring sites such as inland and near to the
sea. This will help us to understand the propagation effect of the
electromagnetic field and also can provide us with a better
understanding on the formation of preliminary breakdown process which
will eventually lead to cloud or ground discharges. To better understand
the frequency behaviour of different type of discharge process, a
spectrum analysis and wavelet study will be conducted.
Lightning And Energy Security Research
Group
Project 2:
photograph
Lightning
time
resolved
This project intends to capture the time resolved photograph
of lightning discharges. This photograph is necessary if one
is to understand the characteristics of lightning channel
propagation such as relationship between the return stroke
propagation speed and the stroke peak current. Return
stroke speed is a parameter in the model used in evaluating
lightning induced effects in power and communication lines.
The information is also needed in inferring lightning currents
from remotely measured electric and magnetic fields.
Lightning And Energy Security Research
Group
Project 3: Lightning Protection, Modeling
and Safety
This project aims to improve current lightning protection designs by
developing new improved earthing models, new approach to air
termination designs as well as LPS implementation according to
standard specifications. The other part of the project is to improve the
algorithms used in the lightning warning systems at installations such as
airports and recreational areas based on the utilisation of lightning
location systems as well as electric field mills. The improved LPS
designs may provide better insulation coordination. Whereas the
improved lightning warning systems may help to improve the efficiency
and convenience to the affected users at the airports and recreational
areas.
Lightning And Energy Security Research
Group
Lightning And Energy Security Research
Group
Thanks for the attention
Q&A Session