Blar i Institutt for elkraftteknikk på forfatter "Ranaweera, Iromi"
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Centralized control of energy storages for voltage support in low-voltage distribution grids
Ranaweera, Iromi; Midtgård, Ole-Morten (Chapter, 2016)This paper presents a centralized voltage control scheme for unbalanced low-voltage grids experiencing over voltage problems due to high PV power penetration. Voltage control is primarily achieved by remotely controlling ... -
Control strategies for residential battery energy storage systems coupled with PV systems
Ranaweera, Iromi; Midtgård, Ole-Morten; Korpås, Magnus; Farahmand, Hossein (Chapter, 2017)This paper presents, and compares the performances of four control strategies for residential battery energy storages coupled with photovoltaic (PV) energy systems. The control strategies are: 1) rule based control, 2) ... -
Distributed control scheme for residential battery energy storage units coupled with PV systems
Ranaweera, Iromi; Midtgård, Ole-Morten; Korpås, Magnus (Journal article, 2017)A distributed control method for residential battery energy storage (BES) units coupled with photovoltaic (PV) systems is presented. The objective is to utilize customer owned BES units for solving the over-voltage issues ... -
Energy Management System for a Photovoltaic System With Battery Storage Participating in Grid Voltage Quality Improvement
Ranaweera, Iromi; Midtgård, Ole-Morten (Chapter, 2015)Coupling an energy storage to a photovoltaic (PV) system not only increases the self-consumption but also solves the over-voltage issues if the cycling of the storage is properly controlled. Whatever the application the ... -
Modelling of Photovoltaic Modules with Battery Energy Storage in Simulink/Matlab With In-SituMeasurement Comparisons
Vika, Håvard; Midtgård, Ole-Morten; Ranaweera, Iromi; Yordanov, Georgi Hristov (Chapter, 2014) -
Modelling of Photovoltaic Modules with Battery Energy Storage in Simulink/Matlab: With in-situ measurement comparisons
Vika, Håvard Breisnes (Master thesis, 2014)The use of renewable energy sources is increasing and will play an important role in the future power systems. The unpredictable and fluctuating nature of solar power leads to a need for energy storage as the prevalence ... -
Optimal Scheduling of Plug-in Electric Vehicles in Distribution Systems Including PV, Wind and Hydropower Generation
Zaferanlouei, Salman; Ranaweera, Iromi; Korpås, Magnus; Farahmand, Hossein (Chapter, 2016)Integration of Plug-in Electric Vehicles (PEVs) and renewables pose substantial challenges on electricity distribution networks. The focus of this paper is to investigate the impact of large-scale PEVs penetration combined ... -
Optimization of operational cost for a grid-supporting PV system with battery storage
Ranaweera, Iromi; Midtgård, Ole-Morten (Journal article, 2016)Coupling an energy storage to a photovoltaic (PV) system not only increases the self-consumption but also solves the over-voltage issues if the cycling of the storage is properly controlled. Whatever the application the ... -
Residential Photovoltaic and Battery Energy System with Grid Support Functionalities
Ranaweera, Iromi; Sanchez Acevedo, Santiago; Midtgård, Ole-Morten (Chapter, 2015)This paper presents the design of a control system for a grid connected residential photovoltaic (PV) system with battery energy storage (BES). The control methods for the power electronic converters are presented and the ... -
Short-Term Intermittency of Solar Irradiance in Southern Norway
Ranaweera, Iromi; Midtgård, Ole-Morten; Yordanov, Georgi Hristov (Chapter, 2014)The temporal variability of solar irradiance at small time scales ranging from 1 second to 2 minutes was studied to characterize the short term fluctuations in irradiance at high latitudes. The change in irradiance at time ... -
Techno-economic Optimum Control of Grid-connected Residential Battery Energy Storage Units
Ranaweera, Iromi; Midtgård, Ole-Morten (Chapter, 2016)A method for cycling residential battery energy storage (BES) units coupled with photovoltaic (PV) systems is presented. The primary purpose of the BES unit is to store the excess energy from the PV system for later ...