The output power variability of intermittent renewable sources can cause significant fluctuations in distribution system voltages. A local linear controller that exploits the capability of a photovoltaic inverter to provide both real and reactive power is described. This controller substitutes reactive power for real power when fluctuations in the output of the photovoltaic source are experienced. In this way, the inverter can help mitigate distribution system voltage fluctuations. The local linear controller has a control parameter called the substitution rate, and several methods of calculating this control parameter are described, including sensitivity minimization and violation optimization methods, which can be applied on a local or global basis and on a per-phase or phase-average basis. This controller is examined using an example distribution system, and it is found that the controller is effective at mitigating voltage violations. Furthermore, comparisons between the alternative methods of selecting the substitution rate are performed.
|Title of host publication||Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference|
|State||Published - Jul 23 2014|
|Event||2014 IEEE/PES Transmission and Distribution Conference and Exposition, T and D 2014 - Chicago, United States|
Duration: Apr 14 2014 → Apr 17 2014
|Name||Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference|
|Conference||2014 IEEE/PES Transmission and Distribution Conference and Exposition, T and D 2014|
|Period||4/14/14 → 4/17/14|
Bibliographical notePublisher Copyright:
© 2014 IEEE.
- Distributed power generation
- Photovoltaic systems
- Power quality
- Voltage control
ASJC Scopus subject areas
- Electrical and Electronic Engineering