Power System Stability of Cordinated Voltage Controlling In Electric Power System

Author Olawuni Adeolu
Co-Author Omotayo Mayowa, Ogunwuyi O. J, Adeleke A. O
DOI

Country : Nigeria
Subject : Electrical /Electronic Engineering

Keywords : Distributed Generators, Distributed System, Genetic Algorithm, Reactive Power, Voltage Control, Voltage Regulator

Abstract

The coordinated voltage control has been done with DGs reactive power control and OLTC operation. The result indicates that involving DGs reactive powers in the voltage control will result in a reduction of number of OLTC operations and the reduction of the voltage level in the distribution system. Further, the results also indicate that from the coordinated voltage control, the losses can be decreased. In recent years, distributed generation, as clean natural energy generation and cogeneration system of high thermal efficiency, has increased due to the problems of global warming and exhaustion of fossil fuels. Many of the distributed generations are set up in the vicinity of the customer, with the advantage that this decreases transmission losses. However, output power generated from natural energy, such as wind power, photovoltaic’s, etc., which is distributed generation, is influenced by meteorological conditions. Therefore, when the distributed generation increases by conventional control techniques, it is expected that the voltage change of each node becomes a problem. Proposed in this Seminar report is the optimal control of distribution voltage with coordination of distributed installations, such as the load ratio control transformer, step voltage regulator (SVR), shunt capacitor, shunt reactor, and static var compensator. In this research, SVR is assumed to be a model with tap changing where the signal is received from a central control unit. Moreover, the communication infrastructure in the supply of a distribution system is assumed to be widespread. The genetic algorithm is used to determine the operation of this control

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