An Assessment Framework for PV Parallel MPPT Configuration with a New Utilization for UIPS Loads

Q3 Engineering

WSEAS Transactions on Power Systems Pub Date : 2022-01-05 DOI:10.37394/232016.2022.17.2

M. El-sayed, A. Huzayyin, A. Mahgoub, E. Abulzahab

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引用次数: 0

Abstract

The prevalence rate of photovoltaics (PV)-based generation systems has increased by more than 15 folds in the last decade, putting it on the top compared to any other power generation system from the expandability point of view. A portion of this huge expansion serves to energize standalone remote areas. Seeking improvements from different aspects of PV systems has been the focus of many studies. In the track of these improvements, parallel MPPT configuration for PV standalone systems have been introduced in the literature as an alternative to a series configuration to improve the overall efficiency of standalone PV systems. However, this efficiency improvement of the parallel MPPT configuration over the series one is not valid for any standalone application, therefore an assessment procedure is required to determine the most efficient MPPT configuration for different standalone applications. Therefore, in this study, an assessment procedure of parallel MPPT is conducted to demonstrate the suitability of utilizing such a configuration compared to series one, based on load daytime energy contributions. This assessment will help PV system designers to determine which MPPT configuration should be selected for applications under study. Furthermore, a new utilization of parallel MPPT configuration is introduced for operating universal input power supply (UIPS) loads to eliminate the inverter stage, thereby increasing the overall system efficiency and reliability. Finally, a systematic procedure to size the complete system is introduced and reinforced by a sizing example.

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光伏并联MPPT配置的评估框架与upps负载的新利用

在过去十年中，基于光伏发电系统的普及率增加了15倍以上，从可扩展性的角度来看，与任何其他发电系统相比，光伏发电系统的普及率都是最高的。这一巨大扩张的一部分用于为独立的偏远地区提供能源。从光伏系统的不同方面寻求改进一直是许多研究的焦点。在这些改进的过程中，文献中引入了光伏独立系统的并联MPPT配置，作为串联配置的替代方案，以提高独立光伏系统的整体效率。但是，并联MPPT配置相对于串联MPPT配置的这种效率改进并不适用于任何独立应用程序，因此需要一个评估过程来确定针对不同独立应用程序的最有效MPPT配置。因此，在本研究中，基于负载日间能量贡献，对并联MPPT进行了评估程序，以证明与串联一相比，使用这种配置的适用性。这一评估将有助于光伏系统设计者确定在研究中的应用中应该选择哪种MPPT配置。此外，引入了一种新的并联MPPT配置，用于操作通用输入电源(UIPS)负载，从而消除了逆变器级，从而提高了整个系统的效率和可靠性。最后，介绍了对整个系统进行分级的系统程序，并通过一个分级实例进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

WSEAS Transactions on Power Systems Engineering-Industrial and Manufacturing Engineering

CiteScore

1.10

自引率

0.00%

发文量

期刊介绍： WSEAS Transactions on Power Systems publishes original research papers relating to electric power and energy. We aim to bring important work to a wide international audience and therefore only publish papers of exceptional scientific value that advance our understanding of these particular areas. The research presented must transcend the limits of case studies, while both experimental and theoretical studies are accepted. It is a multi-disciplinary journal and therefore its content mirrors the diverse interests and approaches of scholars involved with generation, transmission & distribution planning, alternative energy systems, power market, switching and related areas. We also welcome scholarly contributions from officials with government agencies, international agencies, and non-governmental organizations.