Impact of Defective DG on Distribution System Performance
Abdulsalam Arif Ali AL-Oukili;
Abstract
ABSTRACT
In the last decades, the growing demand on electricity lead
researchers to develop new methods for generating enough power to meet
it partly by generating electricity distribution system and to improve
power quality in client’s side. Distributed generation (DG) is one of those
methods. DG is widely used in modern networks and lead to changes in
performance of distribution systems. The advantages that can be added to
distribution system through using the DG’s are mainly improvement of
voltage profile and power quality. Thus, DG is preferable to be installed in
distribution system near clients to enhance the system performance while
reducing power losses and improve voltage in this grid. Recently, DG
became highly important and its penetration increased in most of the
distribution systems. This thesis studies the effects of distributed
generation outage from the system on its performance and behavior. The
model of DG’s in this study assume two cases to the power that provided
into network, where in the first case considered DG units inject just active
power to the grid (unity power factor). In the second case the used DG
injects both active and reactive power to the system. Where many types of
DG as (inverted based connected with photovoltaic, full cell or micro
wind& combined heat and power) can be used. The sizing is done by
using harmony search algorithm (HSA) while the locations are selected by
ranking of the network buses. This work was done on IEEE 33 bus system
with 100% dynamic loads. The dynamic loads are selected after
comparison between many types of loads (static loads, both static and
dynamic loads) where it is considered to be the worst type of load. After
that, outage of DG units is fixed by injecting reactive power source
(capacitor with controlled switch) to compensate the outage of DGs from
the distribution system and to reduce the effect appeared on the network
due to this outage. The sizing of capacitors is optimized by using harmony
search algorithm (HSA) in same place of the DG units.
In the last decades, the growing demand on electricity lead
researchers to develop new methods for generating enough power to meet
it partly by generating electricity distribution system and to improve
power quality in client’s side. Distributed generation (DG) is one of those
methods. DG is widely used in modern networks and lead to changes in
performance of distribution systems. The advantages that can be added to
distribution system through using the DG’s are mainly improvement of
voltage profile and power quality. Thus, DG is preferable to be installed in
distribution system near clients to enhance the system performance while
reducing power losses and improve voltage in this grid. Recently, DG
became highly important and its penetration increased in most of the
distribution systems. This thesis studies the effects of distributed
generation outage from the system on its performance and behavior. The
model of DG’s in this study assume two cases to the power that provided
into network, where in the first case considered DG units inject just active
power to the grid (unity power factor). In the second case the used DG
injects both active and reactive power to the system. Where many types of
DG as (inverted based connected with photovoltaic, full cell or micro
wind& combined heat and power) can be used. The sizing is done by
using harmony search algorithm (HSA) while the locations are selected by
ranking of the network buses. This work was done on IEEE 33 bus system
with 100% dynamic loads. The dynamic loads are selected after
comparison between many types of loads (static loads, both static and
dynamic loads) where it is considered to be the worst type of load. After
that, outage of DG units is fixed by injecting reactive power source
(capacitor with controlled switch) to compensate the outage of DGs from
the distribution system and to reduce the effect appeared on the network
due to this outage. The sizing of capacitors is optimized by using harmony
search algorithm (HSA) in same place of the DG units.
Other data
| Title | Impact of Defective DG on Distribution System Performance | Authors | Abdulsalam Arif Ali AL-Oukili | Issue Date | 2018 |
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