Results 61 to 70 of about 143,415 (200)

Degradation effects in sc-Si PV modules subjected to natural and induced ageing after several years of field operation [PDF]

open access: yes, 2012
This paper presents ageing effects observed in sc-Si PV modules operating in field conditions for 18 and over 22 years. The effects of both natural ageing processes and induced ageing by external agents, causing partial or total shading of cells for a ...
Kaplani, E.
core  

Efficiency analysis of PV power plants shaded by MV overhead lines [PDF]

open access: yes, 2016
This paper deals with the occurrence of hot spot phenomena in photovoltaic (PV) systems under partial shading caused by objects on some parts of the modules.
Dolara, Alberto   +2 more
core   +2 more sources

The Effect of Partial Shadings on the Output Power of the Photovoltaic Modules Connected with Different Current and Voltage Characteristics

open access: yesJurnal Rekayasa Elektrika
A mismatch in the output power of photovoltaic (PV) modules in a PV array can occur due to partial shading or a module replacement. Substitution of a module in a PV array with a new one might lead to different current and voltage characteristics between ...
Ira Devi Sara   +2 more
doaj   +1 more source

PV array reconfiguration method under partial shading conditions

open access: yesInternational Journal of Electrical Power & Energy Systems, 2014
Abstract This paper proposes a new reconfiguration method for photovoltaic arrays under partial shading conditions. With the application the method, the array can produce higher power by reconfigured connections of array. In the proposed method, each row of an array is formed by connecting the panels with close short circuit current levels as ...
openaire   +2 more sources

Crystalline Silicon PV Module under Effect of Shading Simulation of the Hot-Spot Condition [PDF]

open access: yes, 2017
This paper centers on the silicon crystalline PV module technology subjected to operation conditions with some cells partially or fully shaded. A shaded cell under hot-spot condition operating at reverse bias are dissipating power instead of delivering ...
Anjos, Ruben   +3 more
core   +3 more sources

Global MPPT optimization for partially shaded photovoltaic systems

open access: yesScientific Reports
The global demand for electrical energy has witnessed a substantial increase, presenting a challenge for power systems worldwide. In addition to technical considerations, the escalating issue of global warming has become a paramount concern in the planning studies of various sectors.
T. Nagadurga   +5 more
openaire   +3 more sources

Grey wolf optimization and incremental conductance based hybrid MPPT technique for solar powered induction motor driven water pump

open access: yesInternational Journal of Renewable Energy Development
The use of Solar Powered Water Pumps (SPWP) has emerged as a significant advancement in irrigation systems, offering a viable alternative to electricity and diesel-based pumping methods.
Divya Shetty   +1 more
doaj   +1 more source

Begin, After, and Later: a Maximal Decidable Interval Temporal Logic

open access: yes, 2010
Interval temporal logics (ITLs) are logics for reasoning about temporal statements expressed over intervals, i.e., periods of time. The most famous ITL studied so far is Halpern and Shoham's HS, which is the logic of the thirteen Allen's interval ...
A. Montanari   +15 more
core   +2 more sources

Sun shield [PDF]

open access: yes, 1987
A shading device which is capable of compactly storing a flexible shade on a biased, window shade type spring roller is disclosed. It is controlled to deliver the shade selectively to either its operative shading or compact storage ...
Derespinis, Silvio F.   +2 more
core   +1 more source

Approaches for the Development of Low-Budget Analyzers of the Spectrum Sensor Networks 2.4–2.5 GHz [PDF]

open access: yes, 2020
In Ukraine, more and more new home and industrial networks are being built with full or partial use of wireless technologies. Over the past few years, such technologies have become the de facto standard.
Iliushchenko, O., Sokolov, V. Y.
core  

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