Voltage Control in Smart Grids: An Approach Based on Sensitivity Theory

Morris Brenna, Ettore De Berardinis, Federica Foiadelli, Gianluca Sapienza, Dario Zaninelli

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DOI: 10.4236/jemaa.2010.28062                

Abstract

Due to the development of Distributed Generation (DG), which is installed in Medium-Voltage Distribution Networks (MVDNs) such as generators based on renewable energy (e.g., wind energy or solar energy), voltage control is currently a very important issue. The voltage is now regulated at the MV busbars acting on the On-Load Tap Changer of the HV/MV transformer. This method does not guarantee the correct voltage value in the network nodes when the distributed generators deliver their power. In this paper an approach based on Sensitivity Theory is shown, in order to control the node voltages regulating the reactive power exchanged between the network and the dispersed generators. The automatic distributed voltage regulation is a particular topic of the Smart Grids.

Keywords

Voltage Regulation, Reactive Power Injection, Distributed Generation, Smart Grids, Sensitivity Theory, Renewable Energy

Conflicts of Interest

The authors declare no conflicts of interest.

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