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A Novel High-Speed Sensorless Faulty Panel Detection Technique for an SPV String/Array

March 1, 2022 by Sreedhar Madichetty, Yellepeddi Venkata Sai Manoj, Shaik Abdul Kareem and Sukumar Mishra

©SHUTTERSTOCK.COM/NOSTAL6IE

Energy generating systems transcending into the renewable and clean fuel domain has put solar photovoltaic (SPV) systems in an unprecedented position of importance in the fuel and energy sector. However, lower efficiencies offered by these systems in comparison with traditional power generating systems such as coal-fired plants, has demanded the use of multiple techniques to operate the SPV system in a state of maximum power delivery. When the SPV panel is being operated under adverse conditions, such as low insolation, panel cracks, dust, mist and other environmental factors, the base power generated is reduced, implying a further decrease in efficiency of the system. These conditions call for critical countermeasures in order for the generating system to sustain in such situations and simultaneously power the load without any alterations. Given there is no feasible method to ward off these adverse conditions, the best way to restore the power system back to its nominal operating state is to detect and neutralize any faults on a panel. Traditional methods to mitigate the damage being caused by these adverse conditions include the utilization of by-pass diodes to protect the SPV panels from hotspots and to improve efficiency. But in typical solar farms, these by-pass diodes reduce the performance of the whole system causing a significant drop in efficiency.

For more about this article see link below. 

https://ieeexplore.ieee.org/document/9716012

Filed Under: Past Features Tagged With: Energy consumption, Fault diagnosis, Photovoltaic systems, Power electronics, Power systems, Renewable energy sources, Sensors

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IEEE Power Electronics Magazine publishes peer-reviewed articles related to power electronics and its applications which encompass the effective use of electronic components, application of control theory and circuit design techniques, and the development of analytical tools used in efficient and effective energy conversion, control, utilization, and conditioning of electric power.

The IEEE Power Electronics Magazine is limited to the field of interest of the IEEE Power Electronics Society. Topics also include publication of new trend technologies that are being pursued by industry, design practices and case studies, significant amount of state of the art surveys tutorials, and non-technical contributions: news about society activities, interviews, and historical articles.

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To educate, inform, and entertain our community of IEEE Power Electronics Society members on technology, events, industry news, and general topics relating to consumer electronics and to further serve and support our Members in professional career development through tutorials and raising awareness of engineering tools and technologies.

The magazine is archived in IEEE Xplore, and articles from all issues are available for download.

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