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Coordinated voltage support in distribution networks with distributed generation and microgrids

Coordinated voltage support in distribution networks with distributed generation and microgrids

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This paper proposes a new methodology for coordinated voltage support in distribution networks with large integration of distributed generation and microgrids. Given the characteristics of the LV networks, it is shown that traditional control strategies using only reactive power control may not be sufficient in order to perform efficient voltage control. Therefore, microgeneration shedding must also be employed, especially in scenarios with extreme microgeneration penetration. An optimisation tool based on a meta-heuristic approach was developed to address the voltage control problem. In addition, neural networks were employed in order to decrease computational time, thus enabling the use of the tool for online operation. The results obtained revealed good performance of this control approach.

Inspec keywords: neural nets; distributed power generation; voltage control; optimisation; distribution networks; power engineering computing; load shedding; reactive power control

Other keywords: microgrid; meta-heuristic approach; coordinated voltage; microgeneration shedding; reactive power control; distribution networks; optimisation tool; neural networks; voltage control problem; distributed generation; voltage control

Subjects: Power engineering computing; Optimisation techniques; Distribution networks; Control of electric power systems; Neural computing techniques; Power system control; Optimisation techniques

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