2015 International Confer
IGBT and MOSFE
electronics inverter
Chitra Natesan* Anitha Dev
*Research Scholar,Anna University,Asso
Engineer
1
PG scholar,SKP Eng
1a
anit562
Abstract—The Role of DG in smart grid becomes
in the present energy sector scenario. Either
convertor or AC rotating machine will act as an
to connect DG with main grid. Higher degree
sound technically feasible option will be provided
interfaced DG is utilized. Among the various
switching devices, higher voltage, low-switc
insulated gate bipolar transistor (IGBT) inver
voltage, high- switching frequency metal oxide sem
effect transistor (MOSFET) inverter have gained
in the research forum. Hence this paper mai
average approach of converter interfaced DG with
as switching devices with 180/120 degree supplyin
serious RLC load. Voltage, current, real power, re
total harmonic distortions are some of the imp
parameters taken for study. Simulations are c
MATLAB/Simulink platform.
Keywords—Microgrid; Distributed Generation; Thr
IGBT ; MOSFET.
I. INTRODUCTION
The ever increasing power requirement in t
commercial sector, along with the need of reliab
is approaching the power systems towards
Generation (DG) [1]. A microgrid is a uniq
which consists of multiple DGs and cluster
working is unrelated with the main grid [2]. T
of microgrid enhances the power quality,
transmission line costs, reduces the green hous
and efficiently utilizes the renewable energy
Power electronic converters are required to conn
the utility grid [4] [5]. Basically there are tw
inverter based DG (PV, Fuel cell) and non inv
(Synchronous Generator). Some of the DG
inverter interface to generate power at the gr
practical layout of microgrid structure consi
represented in the Fig.1. as belows:
rence on Circuit, Power and Computing Technologies [IC
ET: A comparative study
r topology in distributed
vendiran
1a
, Swathi Chozhavendhan
1b
, Thaniga.D
1c
, R
ociate Proffesor, Department of Electrical &Electron
ring College, India, psk_siva@hotmail.com
gineering College,India , SKP Engineering College,I
21@gmail.com
1b
swathi.sasi26@gmail.com
s a significant one
power electronic
interfacing media
of flexibility and
d when converter
power electronic
ching frequency
rter and a lower
miconductor field
massive attention
inly observes the
h IGBT/MOSFET
ng resistive(R) and
eactive power and
ortant significant
carried out with
ree phase inverter;
N
the industrial and
ble power supply
the Distributed
que form of grid
of loads, whose
The establishment
, decreases the
se gas emissions
y resources [3].
nect the DER and
wo types of DG,
verter based DG
sources rely on
rid frequency. A
idered in [6] is
Fig. 1 An example o
Fundamentally, microgrid can b
or autonomous mode. In grid tied m
supply and demand by buying/sellin
[7]. In autonomous mode, the micro
grid and it ensures the reliable po
[8]. Generally three phase inverter
frequency semiconductor switches s
are used for power transfer betwee
controlling the phase angle (δ) an
voltage. The pulse generator genera
to drive the semiconductor swi
operation conditions, the inverter
which should be kept synchroniz
power system.
With the increasing structure o
there are certain scientific challen
issues, reliable power supply, gene
CCPCT
y of power
generation
Revathi.R
1d
nics Engineering, S.K.P
ndia
of microgrid
be operating either in grid tied
mode, microgrid balances the
ng power from the utility grid
ogrid detaches from the utility
wer supply to the customers
r employing low power high
such as IGBT, MOSFET, etc.
en the DC and AC source by
nd the magnitude of output
ates digital pulses which help
itches. Under steady state
produces the output voltage
zed with the voltage of the
of inverter based microgrid,
nges such as power quality
eration and demand balance,
978-1-4799-7074-2/15/$31.00 ©2015 IEEE