Low-voltage DC-DC off-grid PV system: Various irradiance studies

Razi, Atikah and Ab Shukor, Syahar Azalia and Wei, Wen Lee and Hidayat, Muhamad Nabil (2024) Low-voltage DC-DC off-grid PV system: Various irradiance studies. International Journal of Power Electronics and Drive Systems (IJPEDS), 15 (4). pp. 2651-2659. ISSN 2088-8694

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Abstract

The off-grid photovoltaic (OGPV) system, also referred to as a stand-alone power system, generates electricity from solar energy independently of the main electricity grid. However, photovoltaic (PV) modules face limitations in consistently providing the necessary voltage. Thus, a DC-DC converter is employed to adjust the voltage to match the requirements of the load. This paper proposes a detailed analysis of irradiance patterns resembling in-lab and real-world conditions to address the challenge of selecting the optimal DC-DC OGPV system capable of functioning effectively under standard test condition (STC) and dynamic test condition (DTC), respectively. Three proposed irradiance analyses, tailored to different environmental scenarios, aim to identify output performances for DC-DC OGPV system which are aligning with standards set by the International Electrotechnical Commission (IEC) 61727. The DC-DC OGPV system is simulated using MATLAB Simulink. Furthermore, comparative studies involving different PV module types and several switching techniques (pulse generator and maximum power point tracking or MPPT implementations), where findings are instrumental in advancing the development and projection planning for medium to high-voltage OGPV systems, contributing to the global initiative for accessible and sustainable energy solutions aligned with sustainable development goal (SDG 7).

Item Type:	Article
Uncontrolled Keywords:	Boost converter, DC-DC converter, MPPT, Off-grid photovoltaic, Power converter
Divisions:	Faculty Of Electrical Technology And Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	08 Oct 2025 00:39
Last Modified:	08 Oct 2025 00:39
URI:	http://eprints.utem.edu.my/id/eprint/28957
Statistic Details:	View Download Statistic

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