ISSN No. 2456-0472
The Engineering Journal of Application & Scopes, Volume 1,Issue 2, July 2016 Page:87-89
TEJAS © 2016
http://www.ij-tejas.com
Abstract— To rectify the gap of electricity between demands of
consumers of electricity, the renewable energy source (RES) is the
solution of the problem. There are many advantages which
provide both from consumers and from the utility by
implementation of microgrid systems. Due to many advantages of
microgrid, the development carried out by the various countries
of the world. The microgrid has better quality and it is also more
environments friendly. DSTATCOM is a powerful tool for
improvement the performance of microgrid.
Index Terms- Microgrid, REC, D-STATCOM and Distribution
Network
I. INTRODUCTION
The fossil fuel energy sources are the main energy supplier
worldwide, however, the environmental issues with the
conventional energy resources has led to the development and
implementation of renewable energy sources, such as, solar,
wind, hydropower, energy storage etc. in the supply network.
The increasing number of the distribution generations (DGs)
penetration in the electric power system and the electrical
proximity among interconnected DGs in the network, has
paved the way for the microgrid system [1].
Distributed generation means small generation (50 or 100MW)
units installed on particular points of distribution system.
While the term DG can be integrated for supplying the
generation to consumer. In distribution systems, Distributed
generation can provide benefits to the utilities as well as for the
consumers. A distributed power generation unit can be
connected directly to the utility’s transmission or distribution
system or to consumer side [2]. The power quality and voltage
profile is the main issue of integration of Distributed
Generation (DG) to distribution network. Distributed
generation is being very popular throughout the world due to
environment awareness and its benefits. The power quality and
voltage profile is the main issue of integration of Distributed
Generation (DG) to distribution network. The literature survey
shows that the great influence of the location of fault on the
voltage sag of the buses due to the electrical distance between
the buses [3]. Distributed energy resource (DER) is the group
of various green energy resources viz. renewable energy
generators, PV solar energy, wind energy, electric storage and
electric vehicles (EVs). These energy
resources are located to the low voltage feeders at consumer’s
premises. Now-a-days, PV solar technology is the hot area for
generation of green energy. The photovoltaic (PV) cells will
become the major part of distributed generation from between
2010 and 2019. Electric distribution networks are a main key
of the infrastructure which supports to the industrial,
commercial, and residential facilities. The present Indian
Power system is facing the no. of various difficulties viz.
infrastructure, power quality, reliability and big gap between
demand and generation [4]. Nowadays, these difficulties can be
rectifying by development of renewable, distributed generation
and deployment of Microgrids and Smart Grid.
II. MICROGRID
Now-a-days, the microgrid is not a new concept, but the
microgrid is a modern structure of present power system.
Microgrid is a small-scale power system, including distributed
generation, energy storage and load [5]. The definition of
microgrid as per US Department of Energy (DOE):
―Microgrid‖ means a group of interconnected loads and
distributed energy resources within clearly defined electrical
boundaries that acts as a single controllable entity with respect
to the grid and that connects and disconnects from such grid to
enable it to operate in both grid-connected or ―island‖ mode. A
microgrid is a group of interconnected loads and distributed
energy resources within clearly defined electrical boundaries
that act as a single controllable entity with respect to the grid
[7]. The application of microgrids to provide the continuous
power to remote communities during an outage of indefinite
duration [6].The Microgrid technology has been developed
very fast in recent years with the trend of the integration of
renewable resources and distributed generation with
distribution systems, [8-12]. Microgrid can be operated in the
grid-connected and the islanded mode [13]. Residential
microgrids are mainly based on renewable energy sources (i.e.,
mainly on photovoltaic panels), energy storage systems (that
enable time-shift between production and consumption), and
on power converters representing control points that by proper
operation ensure overall system stability and quality of power
supply [14].
Basic Component of Microgrid:
The microgrid systems containing distributed power, energy
conversion system (Power Conversion System, PCS), a local
load, SCADA, microgrid central controller, microsource
controller, load controllers, mode controller and other
secondary devices. A typical microgrid structure and
equipment deployment shown in Figure 1.
MICROGRID WITH RENEWABLE ENERGY SOURCES
IN DISTRIBUTION NETWORK
Akhilendra Singh Yadav
1
, Aadesh Kumar Arya
2
1-2
Department of Electrical and Electronics Engineering, College of Engineering Roorkee, India
akhil_amu@rediffmail.com
1
, adesh_kumararya@rediffmail.com
2