Preface - kmutt

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The 15 th International Photovoltaic Science &
Engineering Conference (PVSEC-15), October
10-15, 2005, Shanghai, China, pp. 1269-1270
This research presents the design and
development of a photovoltaic Thai silk
spinning machine for silk clothes product for
One Tambol One Product (OTOP) in Thailand.
This machine is based on PIC microcontroller
for control speed of motor and battery charger.
The results of this research, the machine helps
Thai villagers for silk spinning by hand and
makes little products to automatic silk spinning
and increase silk products for OTOP.
IC-155 PSoC-BASED ISLANDING DETECTION
FOR PHOTOVOLTAIC GRID CONNECTED
INVERTER
Khanchai Tunlasakun, Krissanapong Kirtikara,
Sirichai Thepa, Veerapol Monyakul
The 15 th International Photovoltaic Science &
Engineering Conference (PVSEC-15), October
10-15, 2005, Shanghai, China, pp. 285-286
This research presents the design and
development of a PSoC-based islanding
detection for photovoltaic grid connected
inverter with very simple under/over voltage and
under/over frequency islanding detection
algorithm. The system was implemented on a
single CY8C27443 Programmable System on Chip
(PSoC). The system monitored the under / over
voltage and under / over frequency at the point
of common coupling (PCC) between the grid
connected inverter, the local load and the
distribution transformer and processed the value
of voltage and frequency for turned on-off relay
between grid connected inverter and utility grid.
IC-156 PHOTOVOLTAIC POWERED
MIXTURE AND STOCK SOLUTION
CONTROLLER FOR THE PLANTS BY
HYDROPONICS METHOD
Ratchadawan Nimnual, Khanchai Tunlasakun
The 15 th International Photovoltaic Science &
Engineering Conference (PVSEC-15), October
10-15, 2005, Shanghai, China, pp. 826-827
This research presents the design and
development of a photovoltaic powered mixture
and stock solution controller for the plant by
hydroponics method. This design is based on
MCS-51 microcontroller. This system can
KMUTT Annual Research Abstracts 2005
control the flow rate of water, pH value and
concentration of the stock solution for the plants.
Thai formers can use this system conveniently
and quickly because it has 4 optional Thai
menus to serve, namely vegetable menu, fruit
menu, flower menu and herb menu. This system
has a function for calibrating pH probe and
concentration probe, making it convenient for
the farmers to calibrate the probes by
themselves.
IC-157 INTERACTIVE MULTIMEDIA
COMPUTER INSTRUCTION PACKAGE WITH
COMPUTER CONTROLLED
EXPERIMENTAL IN DIGITAL CIRCUIT
DESIGN BY USING VHDL LANGUAGE
Ratchadawan Nimnual, Khanchai Tunlasakun
The 19 th International Conference, “Learning
Organization in a Learning World” (ICLORD
2005), April 18-22, 2005, King Mongkut’s
University of Technology Thonburi, Bangkok,
Thailand, pp. 396-400
This research presents the design and
development of an Interactive Multimedia
Computer Instruction (IMCI) package with
computer controlled experimental in digital
circuit design by using VHDL Language. The
objectives of this research were to construct and
analyze the efficiency of this package. The
sample group was the 30 third year bachelor's
degree students. They were studying Electrical
Engineering in Electrical Technology Education,
School of Industrial Education and Technology,
King Mongkut's University of Technology
Thonburi. Data was obtained from the test
scores of each student after having performed by
the package was analyzed to evaluate the
efficiency of the package. The results of the
analysis in this package was 85.4/87.6 which is
higher than the 80/80 percent proposed as
research criterion. The comparison between the
pretest scores and the posttest scores by using t-
test was significantly different at the level 0.05
that mean that the package was effective and
enable learners gaining more the learning
achievement.
IC-158 ONLINE OUTDOOR STANDARD
TESTING FOR PHOTOVOLTAIC MODULE
VIA INTERNET
Nakarin Spipanya, Khanchai Tunlasakun,
Tanes Tanitteerapan, Ratchadawan Nimnual
International Conference