Optimal Siting and Sizing of Distributed Generators (DGs) in Active Distribution Network (ADN) Conceding Power Losses and Voltage Deviation
Date
2018-05-15
Authors
Almalki, Abduladheem
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Abstract
In recent years, Smart Grid Technology (SGT) has become the next generation of
communication and control techniques in power grids, which provides bi-directional
communication and control of power flow to enhance the power supply capability
and reliability to a power network. One of the most important competent of SGT
is the Distributed Generations (DGs) that are interconnected into the Distribution
System (DS) to incorporate renewable energy sources into the power grid, to reduce
power losses in transmission, and to improve grid voltage quality or stability. In fact,
installing DGs might cause negative impacts on the grid, such as increasing power
loss, operation costs, and poor voltage profile. Hence, proper design of DS, including
optimal siting and sizing the DGs at appropriate location and with proper capacity
play an important role in SGT. This work aims at finding the optimal locations
and sizes of DGs in the power grid, using the IEEE 57-bus network as a test case.
The tasks are accomplished by formulating an optimization problem for minimizing
the active power losses under acceptable grid voltage variation and solving the Global
Optimization (GO) problem using Metamodel-Based GO method. The power network
model are built in MatPower, and the network simulation and optimization are carried
in MATLAB with MatPower interface. Results for the modeling, simulation and
optimization are presented to show the benefit of the proposed method.
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Keywords
Smart Grid Technology, Matpower, Optimal siting and sizing of distributed generation