scholarly journals Photovoltaic System Performance Under Partial Shading: An Undergraduate Research Experience

2020 ◽  
Author(s):  
Xichen Jiang ◽  
Jill Davishahl ◽  
Dana Hickenbottom ◽  
Daniel Saunders ◽  
Troy Thornton
2021 ◽  
Vol 40 (1) ◽  
pp. 49-62
Author(s):  
Abdelrahman M. Mohamed ◽  
Abou-Hashima M. El-Sayed ◽  
Yehia S. Mohamed ◽  
Husam A. Ramadan

2010 ◽  
Vol 670 ◽  
pp. 391-398 ◽  
Author(s):  
Eva Paraskevadaki ◽  
S. Papathanassiou ◽  
Georgios Vokas

Photovoltaic system performance is influenced by a variety of factors such as irradiance, temperature, shading, degradation, mismatch losses, soiling, etc. Especially shading, complete or partial, can have a significant contribution to the reduction of power output, depending mainly on the PV array configuration, the shading pattern and the existence of bypass diodes incorporated in the PV module design. In order to obtain the maximum power from a PV generator, it is of great importance to evaluate the complex effects of shading on the P-V and I-V curves.


2018 ◽  
Author(s):  
Lydia K. Fox ◽  
◽  
Sarah K. Fortner ◽  
Erin Kraal ◽  
Carolyn Wilson

Author(s):  
Mohammed Asim ◽  
Piyush Agrawal ◽  
Mohd Tariq ◽  
Basem Alamri

Under partial shading conditions (PSC), most traditional maximum power point tracking (MPPT) techniques may not adopt GP (global peak). These strategies also often take a considerable amount of time to reach a full power point (MPP). Such obstacles can be eliminated by the use of metaheuristic strategies. This paper shows, in partial shading conditions, the MPPT technique for the photovoltaic system using the Bat Algorithm (BA). Simulations have been performed in the MATLAB ®/Simulink setting to verify the efficacy of the proposed method. In MPPT applications, the results of the simulations emphasize the precision of the proposed technique. The algorithm is also simple and efficient, on a low-cost microcontroller, it could be implemented. Hardwar in loop (HIL) validation is performed, with a Typhoon HIL 402 setup.


2020 ◽  
Vol 367 (21) ◽  
Author(s):  
Jennifer K Lyles ◽  
Monika Oli

ABSTRACT A course-based undergraduate research experience (CURE) was designed to integrate key microbiological principles and techniques into an authentic research experience in a classroom setting and was implemented in an undergraduate microbiology laboratory course. Students conducted a 6-week study in order to determine the identity and quantity of unique probiotic species from various types of kefir. This course module followed an inquiry-based pedagogical approach in which students use the scientific process to investigate an unknown question with no predetermined outcome. During each lab, relevant microbiological topics and laboratory concepts were presented. Students then performed various laboratory techniques, reinforcing the lecture material with hands-on experience. In addition, students participated in reflection through group presentation of their results, bioinformatic analysis and literature review. Based on data collected from pre- and post-study survey responses, both student knowledge and attitudes towards the topics covered improved due to participation in this CURE. Importantly, this CURE can be implemented at many levels of education, requiring only minimal resources and common laboratory equipment.


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