Conference paper
Voltage Control for Unbalanced Low Voltage Grids Using a Decoupled-Phase On-Load Tap-Changer Transformer and Photovoltaic Inverters
Department of Electrical Engineering, Technical University of Denmark1
Center for Electric Power and Energy, Centers, Technical University of Denmark2
Energy System Management, Center for Electric Power and Energy, Centers, Technical University of Denmark3
Distributed Energy Resources, Center for Electric Power and Energy, Centers, Technical University of Denmark4
University of Padua5
This paper presents modeling and analysis of the potential benefits of joint actions of a MV/LV three-phase power distribution transformer with independent on-load tap-changer control on each phase and photovoltaic inverters provided with reactive power control capability, in terms of accommodating more renewable generations in the LV grid.
The potential benefits are investigated in terms of voltage unbalance reduction and local voltage regulation. 24-hours root-mean-square dynamics simulation studies have been carried out with timestep of 1 second using 10-mins resolution consumption and production profiles. A totally passive real Danish low voltage distribution network is used for the grid topology as well as for the characterization of loads profiles, while the production ones are empirically defined under assumptions in scenarios with different level of photovoltaic penetration and grade of unbalance.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2015 |
| Pages: | 1-6 |
| Proceedings: | 50th International Universities Power Engineering Conference |
| ISBN: | 1467396575 , 1467396826 , 9781467396578 , 9781467396820 , 1467396834 and 9781467396837 |
| Types: | Conference paper |
| DOI: | 10.1109/UPEC.2015.7339880 |
| ORCIDs: | Zecchino, Antonio , Marinelli, Mattia and Hu, Junjie |
On-Load Tap-Changer Photovoltaic Hosting Capacity Photovoltaic Inverter Power Transformer Reactive Power Control SDG 7 - Affordable and Clean Energy Unbalanced Low Voltage Grid Voltage Control
Inverters LV three-phase power distribution transformer Load modeling Low voltage MV transformer Production Reactive power Reactive power control Voltage control decoupled-phase on-load tap-changer transformer grid topology invertors loads profiles local voltage regulation on load tap changers phase inverters photovoltaic inverters photovoltaic penetration power grids root-mean-square dynamics simulation studies unbalanced low voltage grids voltage control voltage unbalance reduction
