Energy Storage Systems Architecture Optimization for Grid Resilience With High Penetration of Distributed Photovoltaic Generation

2020 ◽  
Vol 14 (1) ◽  
pp. 1135-1146
Author(s):  
John Confrey ◽  
Amir H. Etemadi ◽  
Steven M. F. Stuban ◽  
Timothy J. Eveleigh
Keyword(s):  
Energy Storage ◽  
Storage Systems ◽  
Energy Storage Systems ◽  
Photovoltaic Generation ◽  
Systems Architecture ◽  
High Penetration ◽  
Architecture Optimization

scholarly journals Novel Control Strategy for Enhancing Microgrid Operation Connected to Photovoltaic Generation and Energy Storage Systems

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1261
Author(s):  
Dina Emara ◽  
Mohamed Ezzat ◽  
Almoataz Y. Abdelaziz ◽  
Karar Mahmoud ◽  
Matti Lehtonen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Control Strategy ◽  
Voltage Stability ◽  
Storage Systems ◽  
Voltage Source ◽  
Stable Operation ◽  
Energy Storage Systems ◽  
Dc Microgrid ◽  
Photovoltaic Generation ◽  
Dc Voltage

Recently, the penetration of energy storage systems and photovoltaics has been significantly expanded worldwide. In this regard, this paper presents the enhanced operation and control of DC microgrid systems, which are based on photovoltaic modules, battery storage systems, and DC load. DC–DC and DC–AC converters are coordinated and controlled to achieve DC voltage stability in the microgrid. To achieve such an ambitious target, the system is widely operated in two different modes: stand-alone and grid-connected modes. The novel control strategy enables maximum power generation from the photovoltaic system across different techniques for operating the microgrid. Six different cases are simulated and analyzed using the MATLAB/Simulink platform while varying irradiance levels and consequently varying photovoltaic generation. The proposed system achieves voltage and power stability at different load demands. It is illustrated that the grid-tied mode of operation regulated by voltage source converter control offers more stability than the islanded mode. In general, the proposed battery converter control introduces a stable operation and regulated DC voltage but with few voltage spikes. The merit of the integrated DC microgrid with batteries is to attain further flexibility and reliability through balancing power demand and generation. The simulation results also show the system can operate properly in normal or abnormal cases, thanks to the proposed control strategy, which can regulate the voltage stability of the DC bus in the microgrid with energy storage systems and photovoltaics.

scholarly journals Analysis of a Multi-Timescale Framework for the Voltage Control of Active Distribution Grids

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1965
Author(s):  
Edoardo De Din ◽  
Fabian Bigalke ◽  
Marco Pau ◽  
Ferdinanda Ponci ◽  
Antonello Monti
Keyword(s):  
Energy Storage ◽  
Distributed Generation ◽  
Network Performance ◽  
Storage Systems ◽  
Essential Element ◽  
Photovoltaic Generation ◽  
High Penetration ◽  
Physical Assets ◽  
Sky Conditions ◽  
Distribution Grids

The development of strategies for distribution network management is an essential element for increasing network performance and reducing the upgrade of physical assets. This paper analyzes a multi-timescale framework to control the voltage of distribution grids characterized by a high penetration of renewables. The multi-timescale solution is based on three levels that coordinate Distributed Generation (DG) and Energy Storage Systems (ESSs), but differs in terms of the timescales and objectives of the control levels. Realistic load and photovoltaic generation profiles were created for cloudy and clean sky conditions to evaluate the performance features of the multi-timescale framework. The proposed solution was also compared with different frameworks featuring two of the three levels, to highlight the contribution of the combination of the three levels in achieving the best performance.

Distributed photovoltaic generation and energy storage systems: A review

2010 ◽  
Vol 14 (1) ◽  
pp. 506-511 ◽  
Author(s):  
Olga Moraes Toledo ◽  
Delly Oliveira Filho ◽  
Antônia Sônia Alves Cardoso Diniz
Keyword(s):  
Energy Storage ◽  
Storage Systems ◽  
Energy Storage Systems ◽  
Photovoltaic Generation

scholarly journals Rooftop Photovoltaic-Battery Systems to Mitigate Overvoltage and Under Voltage in a Residential Low Voltage Distribution System

2020 ◽  
Vol 190 ◽  
pp. 00028
Author(s):  
Praphawadee Charoenwattana ◽  
Umarin Sangpanich
Keyword(s):  
Energy Storage ◽  
Distribution System ◽  
Low Voltage ◽  
Storage Systems ◽  
Peak Time ◽  
Photovoltaic Systems ◽  
Voltage Distribution ◽  
Energy Storage Systems ◽  
High Penetration ◽  
Battery Systems

High penetration of rooftop photovoltaic systems in a residential low voltage distribution system has to be controlled in order to maintain stable voltage condition. Energy storage systems, such as batteries, can be used to absorb excess energy of photovoltaic systems and to shave peak load during on-peak time. This paper proposes guiding principles for the incorporation of energy storage systems into a residential low voltage distribution system with high penetration of rooftop photovoltaic systems. Real residential distribution system circuits and all parameters from the Geographic Information System database of the Provincial Electricity Authority in Thailand were used for simulation analysis to study the application of energy storage systems for regulating voltage in a range of the nominal voltage by 10 %. Solar radiation data from the PVGIS were used. The voltage results were simulated by using the DIgSILENT Power Factory program. Based on the simulation, it was found that the overvoltage and under voltage protection and energy loss reduction could be achieved by (i) installing small battery systems in households and (ii) installing battery stations within the vicinity of the transformer or the weakest point of the circuit.

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