Power architectures for the integration of photovoltaic generation systems in DC-microgrids

Capasso, Clemente; Rubino, Guido; Rubino, Luigi; Veneri, Ottorino

doi:10.1016/j.egypro.2018.12.014

Cited by 10 publications

(8 citation statements)

References 12 publications

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“…This section focuses on review of different strategies for achieving high penetration of PV generation in the smart grids. Some studies on DC grid and DC microgrids for increasing PV penetration have been reported in the literature [42][43][44]. However, DC grids are limited to small islands or standalone systems whereas majority of studies focus on integrating PV generation to existing AC grids, both at transmission and distribution level.…”

Section: Strategies For Increasing Pv Penetration Level In Smart Gridsmentioning

confidence: 99%

A Review of Strategies to Increase PV Penetration Level in Smart Grids

Aleem

Hussain²,

Ustun³

2020

Energies

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Due to environmental concerns, power system generation is shifting from traditional fossil-fuel resources to renewable energy such as wind, solar and geothermal. Some of these technologies are very location specific while others require high upfront costs. Photovoltaic (PV) generation has become the rising star of this pack, thanks to its versatility. It can be implemented with very little upfront costs, e.g., small solar home systems, or large solar power plants can be developed to generate MWs of power. In contrast with wind or tidal generation, PV can be deployed all around the globe, albeit with varying potentials. These merits have made PV the renewable energy technology with highest installed capacity around the globe. However, PV penetration into the grid comes with its drawbacks. The inverter-interfaced nature of the PV systems significantly impacts the power system operation from protection, power flow and stability perspectives. There must be strategies to mitigate these negative impacts so that PV penetration into the grid can continue. This paper gives a thorough overview of such strategies from different research fields: such as communication, artificial intelligence, power electronics and electric vehicle charging coordination. In addition, possible research directions are given for future work.

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Section: Strategies For Increasing Pv Penetration Level In Smart Gridsmentioning

confidence: 99%

A Review of Strategies to Increase PV Penetration Level in Smart Grids

Aleem

Hussain²,

Ustun³

2020

Energies

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“…The state equations of the turnon and turn-off modes of the transformer are not separately described. 23 The switch function takes a value in the set {À1, 1}. Use a switching function.…”

Section: Modeling Of Photovoltaic Power Generation Systemsmentioning

confidence: 99%

Unscented Kalman filtering method for scheduling photovoltaic power generation system fluctuations

Zhang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part A:

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For the intermittent nature of renewable resources (such as wind and solar), smooth power fluctuations are required before the energy conversion system can be injected into the grid. The battery system is a typical smoothing control method for photovoltaic power. The long-term overcharge and overdischarge make the battery energy storage scheme unattractive. In this paper, the output power fluctuation of the photovoltaic power generation system is smoothed based on the unscented Kalman filter (UKF) method combined with the fuel cell operating characteristics. This coordination method affects the UKF situation through the feedback of state of charge (SOC) and the power of the battery system. Not only can it better meet the load characteristics, but it can also make the SOC automatically correct the battery system to prevent overcharge and overdischarge. The meteorological load data was used to verify the superiority of the method.

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“…However, this time DC struck back in full swing, capturing almost all the sectors of power system generation, transmission, and utilization [6]. The generation side witnessed a shift to renewable energy resources comprising majorly solar PV and wind-based generation [7][8][9][10]. Solar PV systems produce power in the form of DC, and wind can also be better optimized with DC.…”

Section: Introductionmentioning

confidence: 99%

Comparative Efficiency and Sensitivity Analysis of AC and DC Power Distribution Paradigms for Residential Localities

et al. 2022

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The new millennium has witnessed a pervasive shift of trend from AC to DC in the residential load sector. The shift is predominantly due to independent residential solar PV systems at rooftops and escalating electronic loads with better energy saving potential integrated with diminishing prices as well as commercial availability of DC-based appliances. Comprehensive sensitivity analysis considering the real load profile is missing in the present body of knowledge. In order to fill that gap, this paper is an attempt to include a comprehensive sensitivity analysis of the DC distribution system and its simulation-based comparison with its AC counterpart, considering the real load profile. The paper uses the Monte Carlo technique and probabilistic approach to add diversity in residential loads consumption to obtain an instantaneous load profile. Various possible scenarios such as variation of standard deviation from 5% to 20% of mean load value, PV capacity variation from 1000 W to 9000 W, and variation in power electronic converter (PEC) efficiencies are incorporated to make the system realistic as much as possible maintaining a fair comparison between both systems. The paper concludes with the baseline efficiency advantage of 2% to 3% during the day for the case of the DC distribution system as compared to the AC distribution system.

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Power architectures for the integration of photovoltaic generation systems in DC-microgrids

Cited by 10 publications

References 12 publications

A Review of Strategies to Increase PV Penetration Level in Smart Grids

A Review of Strategies to Increase PV Penetration Level in Smart Grids

Unscented Kalman filtering method for scheduling photovoltaic power generation system fluctuations

Comparative Efficiency and Sensitivity Analysis of AC and DC Power Distribution Paradigms for Residential Localities

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