The Cost-Benefit Analysis of the Electricity Production from Small Scale Renewable Energy Sources in the Conditions of Romania

Atănăsoae, Pavel; Pentiuc, Radu Dumitru; Milici, Dan Laurențiu; Olariu, Elena Daniela; Poienar, Mihaela

doi:10.1016/j.promfg.2019.02.230

Cited by 14 publications

(2 citation statements)

References 7 publications

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“…Among the hybrid systems that consist of solar air heating systems mentioned in this review, the PV/T system [9] and the system with heat exchangers [18] are up-to-date and of high interest [22][23].…”

Section: Discussionmentioning

confidence: 99%

Review on solar air heater hybrid systems thermal performances

Ifrim

Milici

Bejenar

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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As conventional fossil fuel systems release toxicants into the atmosphere, humanity is increasingly moving towards sustainability, towards using products that do not cause negative effects on the environment, have a long service life and offer multiple benefits. Solar air heating systems are increasingly used in household applications, even in industrial ones at times. The principle of operation of systems of this type is established on the existence of solar radiance, without this the panels have little or no efficiency at all, so they are limited to sunny periods. One of the methods of increasing the impact and performance of these systems is the realization of hybrid systems that offer several benefits with regard to heating the air in rooms, heating water and ventilating spaces. The meaning of this article is to present a summary of the existing literature, in the sphere of solar hybrid air heating systems, on the methods of improvement and the performance achieved.

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Section: Discussionmentioning

confidence: 99%

Review on solar air heater hybrid systems thermal performances

Ifrim

Milici

Bejenar

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Renewable sources are used in microgrids to optimize the power supply and reduce the cost of electricity production [8,9]. Two of the most used renewable energies are photovoltaic panels [10,11] and wind turbines.…”

Section: Introductionmentioning

confidence: 99%

Optimal parameters of inverter-based microgrid to improve transient response

Pérez¹,

Candelo-Becerra²,

Hoyos³

2020

IJECE

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The inertia issues in a microgrid can be improved by modifying the inverter control strategies to represent a virtual inertia simulation. This method employs the droop control strategy commonly used to share the power of a load among different power sources in the microgrid. This paper utilizes a modified droop control that represents this virtual inertia and applies an optimization algorithm to determine the optimal parameters and improve transient response. The results show better control when different variations are presented in the loads, leading the microgrid to have a better control of the operation. The optimization method applied in this research allows improvement to the transient response, thus avoiding unnecessary blackouts in the microgrid. : received his Bs. degree in Electrical Engineering and his Master in Electrical Engineering from the Universidad Nacional de Colombia, Sede Medellín. He has worked on projects related to design of electrical substations, electrical risk classification, and coordination of protections. He participated in the design of the electromechanical equipment for medium and high voltage substations and transient phenomena studies, obtaining experience in power system analysis. His research interests include: renewable energy, microgrid, energy storage, and power system protection and control.

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