Performance and Cost analysis for a University based Solar PV installation

Ntsaluba, Sula B.K.; Dlamini, Isaac

doi:10.1109/powerafrica49420.2020.9219898

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…The use of renewable energy resources, such as wind and solar power, is the main solution to achieve the net‐zero emission [1]. However, the integration of single‐phase grid‐connection photovoltaics (PVs) may exacerbate the three‐phase unbalance issues in the low‐voltage distribution networks (LVDNs) with the three‐phase four‐wire structure [2].…”

Section: Introductionmentioning

confidence: 99%

Voltage control method based on three‐phase four‐wire sensitivity for hybrid AC/DC low‐voltage distribution networks with high‐penetration PVs

Zhang

Zhao

Zhang

et al. 2021

IET Renewable Power Gen

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The increasing integration of distributed photovoltaics may further aggravate the over‐voltage and three‐phase unbalance issues of low‐voltage distribution networks with three‐phase four‐wire structures. The voltage control method based on the AC and DC side power flow control and the three‐phase power control capability of voltage source converter in hybrid AC/DC low‐voltage distribution networks is a solution for the improvement of the above power quality issues. In this paper, an accurately improved sensitivity matrix calculation method considering shunt admittance based on the ABCD parameters is proposed in hybrid AC/DC low‐voltage distribution networks with a three‐phase four‐wire structure. The presented ABCD parameters of the feeders consider the influence of the coupling effect among phases and the neutral line on sensitivity calculation, which makes the sensitivity calculation simple. Then, a power‐voltage control method for voltage source converters based on three‐phase four‐wire sensitivity matrices of the AC side is proposed considering the constraints from the voltage source converter and DC side power flow in hybrid AC/DC low‐voltage distribution networks, which can effectively address the over‐voltage and unbalanced issues. Simulations are performed to verify the proposed sensitivity calculation method and voltage control method.

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Section: Introductionmentioning

confidence: 99%

Voltage control method based on three‐phase four‐wire sensitivity for hybrid AC/DC low‐voltage distribution networks with high‐penetration PVs

Zhang

Zhao

Zhang

et al. 2021

IET Renewable Power Gen

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“…As an example, a photovoltaic installation was introduced in some academic buildings of the University of Johannesburg in South Africa. The results have allowed 25% reduction in the cost of energy use, 27% reduction in demand cost and a reduction in carbon emissions [16].…”

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confidence: 99%

Days of autonomy for optimal Battery Sizing in Stand-alone Photovoltaic Systems

Andam

Alami

Louartassi

et al. 2023

IJEEI

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Nowadays, the use of clean renewable energies is becoming increasingly necessary in order to preserve our environment and ensure our energy needs. Nevertheless, the integration of this type of energy still faces many challenges that must be overcome, especially the fluctuation and the storage. Researches for the optimization of these systems, particularly photovoltaic technologies, are getting widespread and diversified. The main purpose of our article is to optimize the battery sizing in a Stand Alone Photovoltaic System by identifying the most appropriate number of autonomy days. A case study in theregion of Errachidia in Morocco has been established and simulated to define the optimal number. In the others current researches, only a small importance has been attributed to the battery autonomy. The objective is generally to ensure a continuous presence of energy especially for isolated systems while this is not always optimal nor economical and does not necessarily guarantee a safe supply. However, an over dimensioning of the battery will lead to a consequent cost and a loss of energy. The results show that the number of days of autonomy must correspond to the minimum ratio linking the lack of energy to the surplus during a specific period.

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Performance Evaluation and Comparison of a University based roof top Grid- connected PV system

Ntsaluba¹,

Dlamini²

2021

2021 International Conference on Electrical, Computer and Energy Technologies (ICECET)

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Performance and Cost analysis for a University based Solar PV installation

Cited by 4 publications

References 10 publications

Voltage control method based on three‐phase four‐wire sensitivity for hybrid AC/DC low‐voltage distribution networks with high‐penetration PVs

Voltage control method based on three‐phase four‐wire sensitivity for hybrid AC/DC low‐voltage distribution networks with high‐penetration PVs

Days of autonomy for optimal Battery Sizing in Stand-alone Photovoltaic Systems

Performance Evaluation and Comparison of a University based roof top Grid- connected PV system

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