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Voltage Regulation in Electricity Distribution Networks Using the Conditional Value-at-risk by Mohammadhafez Bazrafshan; Nikolaos Gatsis is a scholarly article available to read on EtoBox.

What is Voltage Regulation in Electricity Distribution Networks Using the Conditional Value-at-risk about?

Voltage regulation in distribution networks featuring high penetration of distributed photovoltaic (PV) generation is particularly challenging due to the stochastic nature of solar energy. To ensure that voltage levels remain within safety margins, this paper introduces a real and reactive power optimization model that penalizes the conditional value-at-risk of the voltage deviation from its nominal value. This riskaverse approach guarantees that node voltages across the network remain close to their nominal value with a specified probability. Decision variables are the real power consumption of controllable loads and reactive power consumption or generation from PV inverters. Adopting a scenariobased model for the uncertain solar power, the overall problem amounts to a convex quadratic program. Numerical tests for typical residential distribution networks exhibit the effectiveness of the model in achieving voltage regulation as compared to alternative risk-neutral approaches.

Author

Mohammadhafez Bazrafshan; Nikolaos Gatsis

Publisher

IEEE

Published

2014

Language

EN