Performance and Reliability Improvement of Partially Shaded PV Arrays by One-Time Electrical Reconfiguration
نویسندگان
چکیده
Partial shading is the most unexpected scenario encountered by arrays that degrade performance causing power reduction, non-convex characteristics curves, losses, hotspot, module damage, and system failure. The adoption of various reconfiguration techniques has recently provided relief to PV array reduce losses during partial shading. However, these exhibit vulnerabilities such as reliable operation, ease implementation and, higher cost complexity due requirement abundant manpower, labour, complex algorithms, dynamic switches sensors cause additional losses. Hence, this paper presents a low less technique for effectively increase generation scenarios. proposed does not require any algorithms or devices in efficacy tested using two sizes under scenarios MATLAB modelling real-time field experiments. Also, better analysis, compared with conventional configurations Sudoku reconfiguration. investigation proclaimed an average enhancement 20% than other configurations.
منابع مشابه
Partially Shaded Operation of a Grid-Tied PV System: Preprint
Partial shading of a PV installation has a disproportionate impact on its power production. This paper presents background and experimental results from a single string grid-tied PV system, operated under a variety of shading conditions. In this configuration a shadow can represent a reduction in power over 30 times its physical size. Results are presented relating size and positions of shading...
متن کاملPerformance of PV Topologies under Shaded Conditions
The test also determines a Shading Mitigation Factor (SMF) which represents the annual energy recovery of a power optimizer or microinverter system, compared to a traditional string inverter. The study found that the SolarEdge system recovered 28.3%, 21.9%, and 24.3% of energy lost by the string inverter system, with light, medium and heavy shading, respectively. These results indicate higher S...
متن کاملthe effects of time planning and task complexity on accuracy of narrative task performance
هدف اصلی این تحقیق بررسی تاثیر برنامه ریزی زمانی، هم چنین افزایش میزان پیچیدگی تکالیف در نظر گرفته شده بصورت همزمان، بر دقت و صحت و پیچیدگی عملکرد نوشتاری زبان آموزان می باشد. بدین منظور، 50 نفر از دانش آموزان دختر در رده ی سنی 16 الی 18 سال به عنوان شرکت کنندگان در این زمینه ی تحقیق در نظر گرفته شدند و به دو گروه آزمایشی و کنترل بصورت اتفاقی تقسیم شدند. اعضای گروه آزمایشی هر دو تکلیف ساده و پی...
Optimal Reconfiguration of Distribution Network for Power Loss Reduction and Reliability Improvement Using Bat Algorithm
In power systems, reconfiguration is one of the simplest and most low-cost methods to reach many goals such as self-healing, reliability improvement, and power loss reduction, without including any additional components. Regarding the expansion of distribution networks, communications become more complicate and the number of parameters increases, which makes the reconfiguration problem infeasib...
متن کاملAnalysis of Partially Shaded PV Modules Using Piecewise Linear Parallel Branches Model
This paper presents an equivalent circuit model based on piecewise linear parallel branches (PLPB) to study solar cell modules which are partially shaded. The PLPB model can easily be used in circuit simulation software such as the ElectroMagnetic Transients Program (EMTP). This PLPB model allows the user to simulate several different configurations of solar cells, the influence of partial shad...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Access
سال: 2022
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2022.3171107