Abstract
Higher penetration of solar photovoltaic (PV), with their uncontrollable generation variability, imposes various grid stability challenges on distribution system operation. The primary problem is significant voltage rise in the distribution feeder that forces existing voltage control devices such as on-load tap-changers and line voltage regulators to operate more frequently. The consequence is the deterioration of the operating life of the voltage control mechanism. The objective of this paper is to investigate the voltage impact of increased penetration of PV systems on distribution load tap changer operations. Both steady-state and quasi-static power flow analyses have been conducted to assess the impact on load tap changes under different solar PV penetration levels. Two real-world distribution feeder circuits are used as a test system in this study. Simulations are carried out for up to one-year period with 1-minute time step using OpenDSS. A comparison study was performed to investigate potential voltage rise issues in the network by increasing total PV penetration from 0 to 100% in the feeder. Results show significant increase in the total number of tap operations as solar PV penetration increases. Impacts on nodal voltages and feeder net power are also presented.
| Original language | English |
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| Title of host publication | 2018 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2018 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1-5 |
| Number of pages | 5 |
| ISBN (Electronic) | 9781538624531 |
| DOIs | |
| State | Published - Jul 3 2018 |
| Event | 2018 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2018 - Washington, United States Duration: Feb 19 2018 → Feb 22 2018 |
Publication series
| Name | 2018 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2018 |
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Conference
| Conference | 2018 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2018 |
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| Country/Territory | United States |
| City | Washington |
| Period | 02/19/18 → 02/22/18 |
Funding
This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. This material is based upon work supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, SunShot National Laboratory Multiyear Partnership (SuNLaMP) program. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).