Journal ArticleDOI
Investigation of Methods for Reduction of Power Fluctuations Generated From Large Grid-Connected Photovoltaic Systems
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TLDR
In this article, the authors investigated three methods that can be used to reduce the fluctuations in the power generated from a large customer-owned photovoltaic (PV) system, in the order of megawatts.Abstract:
Photovoltaic (PV) systems are presently allowed to inject into the grid all the power they can generate. However, in the near future, utilities are expected to impose additional regulations and restrictions on the power being injected by large centralized PV systems because of their possible adverse impacts. One of the main issues associated with large PV systems is the fluctuation of their output power. These fluctuations can negatively impact the performance of the electric networks to which these systems are connected, especially if the penetration levels of these systems are high. Moreover, the fluctuations in the power of PV systems make it difficult to predict their output, and thus, to consider them when scheduling the generating units in the network. The main objective of this paper is to investigate some methods that can be used to reduce the fluctuations in the power generated from a large customer-owned PV system, in the order of megawatts. This paper focuses on three methods: 1) the use of battery storage systems; 2) the use of dump loads; and 3) curtailment of the generated power by operating the power-conditioning unit of the PV system below the maximum power point. The emphasis in the analysis presented in this paper is on investigating the impacts of implementing these methods on the economical benefits that the PV system owner gains. To estimate the maximum revenues gained by the system owner, an linear programming optimization problem is formulated and solved. Moreover, the effect of varying different parameters of the problem is investigated through sensitivity analysis.read more
Citations
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Journal ArticleDOI
Photovoltaic penetration issues and impacts in distribution network - A review
TL;DR: In this article, a comprehensive overview on important issues affecting the distribution system as a result of PV penetration is presented, including voltage fluctuation, voltage rise, voltage balance, and harmonics and their effect on the system.
Journal ArticleDOI
A review of key power system stability challenges for large-scale PV integration
TL;DR: In this article, the authors extensively review the technical challenges associated with the integration of large-scale PV into the power system and discuss the technical solutions to overcome these challenges, and summarize the research findings about the technical solution to overcome power system stability challenges regarding the large scale PV integration into the transmission and subtransmission or medium voltage distribution system.
Journal ArticleDOI
Storage Size Determination for Grid-Connected Photovoltaic Systems
Yu Ru,Jan Kleissl,Sonia Martinez +2 more
TL;DR: A criterion for evaluating the economic value of batteries compared to purchasing electricity from the grid, lower and upper bounds on Crefc are proposed, and an efficient algorithm for calculating its value is introduced; these results are validated via simulations.
Journal ArticleDOI
Mitigating methods of power fluctuation of photovoltaic (PV) sources – A review
TL;DR: In this paper, a comprehensive literature review on problems associated when the intermittent PV is connected to grid and the methods of smoothing the output power fluctuation from PV is presented, also briefly discusses control strategy built for battery energy storage pertaining to this issue.
Journal ArticleDOI
Trends and Challenges of Grid-Connected Photovoltaic Systems – A Review
Manasseh Obi,Robert B. Bass +1 more
TL;DR: In this paper, a review of the existing and future standards that address the technical challenges associated with the growing number of Grid-Connected Photovoltaic Systems (GCPVS) is presented.
References
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Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey
Juan Manuel Campos Carrasco,Leopoldo G. Franquelo,Jan T. Bialasiewicz,Eduardo de Teresa Galván,R.C.P. Guisado,Ma.A.M. Prats,Jose I. Leon,Narciso Moreno-Alfonso +7 more
TL;DR: New trends in power electronics for the integration of wind and photovoltaic (PV) power generators are presented and a review of the appropriate storage-system technology used for the Integration of intermittent renewable energy sources is introduced.
Journal ArticleDOI
Energy storage and its use with intermittent renewable energy
John P. Barton,David Infield +1 more
TL;DR: In this article, a simple probabilistic method has been developed to predict the ability of energy storage to increase the penetration of intermittent embedded renewable generation (ERG) on weak electricity grids and to enhance the value of the electricity generated by time-shifting delivery to the network.
Journal ArticleDOI
Voltage fluctuations on distribution level introduced by photovoltaic systems
TL;DR: In this paper, a localized spectral analysis was applied to the solar irradiance and derived quantities in order to determine the power content of fluctuations, depending on their characteristic persistence, and power-flow calculations were carried out in to assess the impact of fluctuating solar irradiances on the grid voltage.
Journal ArticleDOI
Analysis of the Cost per Kilowatt Hour to Store Electricity
P. Poonpun,Ward Jewell +1 more
TL;DR: In this article, a cost analysis of grid-connected electric energy storage is presented in terms of the cost added to electricity stored and discharged, in US dollar per kilowatt hour.
Journal ArticleDOI
Determination of Battery Storage Capacity in Energy Buffer for Wind Farm
TL;DR: In this paper, a battery energy storage system (BESS) in a buffer scheme is examined for the purpose of attenuating the effects of unsteady input power from wind farms, and the design problem is formulated as maximization of an objective function that measures the economic benefit obtainable from the dispatched power from the wind farm against the cost of the BESS.