Fault identification and diagnosis methods for photovoltaic system: A review

Long-Dong, Ba; Wu, Yuan‐Kang; Pham, Manh-Hai

doi:10.1109/icasi52993.2021.9568414

Cited by 3 publications

(1 citation statement)

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“…The PSC (partial shading condition) disturbs the characteristics curves of the PV array. It is one of the important issues if addressed, can improve output power to a greater extent, and improves the life expectancy of panels, thus ensuring a promised payback period [17,18]. Since the output generated by a single PV is relatively lesser, multiple panels must be used.…”

Section: Introductionmentioning

confidence: 99%

Development of a Digital Twin Framework for a PV System to Resolve Partial Shading

Karunanidhi,

Ramasamy,

Alexander Stonier

et al. 2024

Mathematical Problems in Engineering

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Digital twin (DT) is a prolific buzzword in this era, where digitization plays a significant role. The perception of solar energy harvesting has been gaining popularity with the advent of solar panels. Solar asset maintenance is a need of the hour for investors because of the smart city scheme and green building certificate evaluation for all industries, educational institutions, etc. Among the list of factors that reduce PV system efficiency, the issue of partial shading is a vital distress that must be resolved. This paper focuses on the development of a digital twin framework that is proactively driven by shading patterns and a proposed optimization-based reconfiguration embedded controller that electronically relocates the panel in the physical world. The real-time system has been created for a three-by-three series parallel panel arrangement. The proposed switching matrix controller achieves the maximum power, i.e., 40% of increased power output, row current difference is made almost zero from 3 to 4 A, and fill factor increases by 20% by reconfiguring the solar array. It is done based on a decision taken by a nature-inspired (equal irradiation distribution algorithm) or puzzle-based (skyscraper) optimization algorithm. Switching matrix controllers overcome the disadvantages of physical relocation. The users can query the digital twin build to know the historical performance and current operating conditions of the system. It can trigger alarms as early warnings and make predictions about possible system anomalies, if and when they occur using a digital twin.

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Section: Introductionmentioning

confidence: 99%