Search
Now showing items 31-40 of 62
Study of photovoltaic and inverter characteristics
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
The development of renewable energy is
increasing worldwide because of the growing demand
on energy, high oil prices, and concerns of
environmental impacts. Solar energy is amongst the
highest development of renewable ...
High side MOSFET driver design using discrete components for low voltage applications
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
This paper presents the design of a high-side N-channel MOSFET driver using discrete components for low voltage applications, ranging from 3V up to 24Vdc operation. Special level shifting technique is used to increase the ...
Predicting the localized flux distribution in three phase induction motor between different stator slot size
(Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)
A three phase induction motor differences of stator slot size is investigated in terms of its localized flux distribution. The search coil induced voltage method is used to analyze the flux distribution in the stator core. ...
Effect of solar irradiance and temperature on photovoltaic module electrical characteristics
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
The electrical characteristics of photovoltaic (PV)
module are dependent on solar irradiance and
temperature. It consists of short circuit current, open
circuit voltage, maximum power, fill factor and
efficiency. This ...
Design and sizing photovoltaic system for DC air-conditioning
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
The author is designing the photovoltaic system to
support the DC air-conditioning. There are calculations
that have to achieve such as daily load energy (EL),
energy directly from sun (Esun), area of photovoltaic ...
Predicting an investigation of flux distribution in three phase induction motor stators by using different stator slot sizes
(Universiti Malaysia Perlis (UniMAP), 2010-09-16)
The predicting of different stator slot sizes on flux
distribution in three phase induction motor is
presented. For both stator models, the maximum flux
density is found near the tooth tip and minimum
towards the outer ...
An alternative approach to solar and grid-connected hybrid electricity for homes and buildings in Malaysia
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
This paper presents the proposal of a solar and
grid-connected hybrid electricity system for homes and
also buildings. A new concept of using a DC motor
and synchronous generator as an electromechanical
inverter is ...
Current transformer reaction with total harmonic distortion
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
Current transformer (CT) has a critical role in
protective and measurement devices used in both the
industrial and the utility worlds. However, the used of
current transformer in harmonic condition brings
some effects ...
The effect of different stator slot size on the stator copper loss
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
The input power to an induction motor is in the form of three phase electric voltages and currents. The first losses encountered in the machine are I2R losses in the stator winding. The stator copper loss occurs when the ...
Flux pattern in 1000 kVA 11/.433 kV distribution transformer core to sinusoidal wave
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
A study was conducted using sinusoidal waveform
to capture flux pattern in CRGO M5 material in a
1000kVA 11kV 3 phase transformer core. It is found
that it takes about 180⁰ electrical degree cycle for a
pool of flux ...