Voltage and reactive power control in a distribution network considering optimal network configuration and voltage security constraints

Document Type : Research Note

Authors

Department of Electrical Engineering, Shahid Bahonar University of Kerman, Postal code: 7616914111, Kerman, Iran

Abstract

In order to reduce energy losses and improve voltage stability index in distribution system, two different approaches have been proposed and employed including voltage and reactive power control (volt/var control) and distribution network reconfiguration. In the present paper, volt/var control and network reconfiguration in distribution system considering voltage security constraints is modelled as a multi-objective optimization problem. Total electrical energy losses, voltages deviations and voltage stability have been considered as objectives. Also, a new method for distribution network reconfiguration has been utilized for implementation of these two problems simultaneously. In this way, the two problems can be solved in less time. In addition, different nature of loads in each bus is considered in network load modelling. Non-dominated sorting genetic algorithm-II is used to solve this problem. Finally, the effectiveness of the proposed method is evaluated by implementation on the IEEE 33-bus system and a real 77-bus distribution system.

Keywords

Main Subjects

References

References:
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Scientia Iranica
Volume 27, Issue 3
Transactions on Computer Science & Engineering and Electrical Engineering (D)
June 2020
Pages 1481-1493

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