A combined scheme for maximising the output power of a Photovoltaic array under partial shading conditions

2022 ◽  
Vol 50 ◽  
pp. 101878
Author(s):  
Mohamed Etarhouni ◽  
Benjamin Chong ◽  
Li Zhang
Keyword(s):  
Output Power ◽  
Partial Shading ◽  
Photovoltaic Array

scholarly journals Maximizing Power Output of a Partially Shaded Total-Cross-Tied Photovoltaic array

2017 ◽  
Vol 2 (1) ◽  
pp. 10 ◽  
Author(s):  
Neha Saurabh Shah ◽  
Hiren H Patel
Keyword(s):  
Output Power ◽  
Power Output ◽  
Control Algorithm ◽  
Partial Shading ◽  
Current Compensation ◽  
Matlab Simulink ◽  
Photovoltaic Array ◽  
Pv Array ◽  
Higher Power ◽  
Simulation Results

Non-uniform conditions on the modules of the PV array, especially, partial shading reduces the output of the PV array to a large extent. The shaded module in a string limits the current of the entire string and hence, the output power of the string.  The output power under such conditions is reported to be higher for total-cross-tied (TCT) configuration. This paper describes two different approaches, one based on current compensation (current equalization) and another based on voltage equalization, to extract higher power from the partially shaded total-cross-tied photovoltaic array. The TCT configuration is considered to minimize the number of converters, sensors, cost and complexity involved. The additional converters in the two distinct approaches evaluated here operate only when the partial shading occurs and are controlled to minimize the current and voltage miss-matches. The analysis and the control algorithm are presented. Simulation results obtained in MATLAB/Simulink are included to demonstrate the effectiveness of both methods and the relative merits and demerits of these approaches are highlighted.

Photovoltaic Array under Partial Shading Condition for Irrigation

2014 ◽  
Vol 622 ◽  
pp. 141-145
Author(s):  
Govindaraju Rohini ◽  
V. Jamuna ◽  
D. Priyadarsini
Keyword(s):  
Solar Irradiance ◽  
Photovoltaic Performance ◽  
Cell Temperature ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Photovoltaic Panel ◽  
Array Configuration ◽  
Photovoltaic Array ◽  
Incremental Conductance ◽  
Power Point

This paper discuss about the effect of partial shading on photovoltaic array and driving the dc-dc boost converter to track maximum power point (MPP ) by incremental conductance (INC) MPPT algorithm. The temperature, irradiance, shading and array configuration will greatly affect the Photovoltaic performance. The shading effect on photovoltaic panel are caused by passing clouds ,neighbouring trees, neighbouring buildings ,towers .The PV characteristic of Photovoltaic panel get more complex under partial shading condition. The P-V and I-V characteristic under nonuniform insolation are simulated in Matlab based on solar irradiance and cell temperature. The design and analysis are made simple and easy through Simscape package.

Photovoltaic Array Modeling under Uniform Irradiation and Partial Shading Condition

2017 ◽  
Vol 6 (3) ◽  
pp. 144
Author(s):  
Lunde Ardhenta ◽  
Wijono Wijono
Keyword(s):  
Solar Energy ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Array Configuration ◽  
Photovoltaic Array ◽  
Pv Array ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Temperature Irradiation ◽  
Power Point

Wind energy and solar energy are the prime energy sources which are being utilized for renewal energy. The performance of a photovoltaic (PV) array for solar energy is affected by temperature, irradiation, shading, and array configuration. Often, the PV arrays are shadowed, completely or partially, by the passing clouds, neighboring buildings and towers, trees, and utility and telephone poles. Under partially shaded conditions, the PV characteristics are more complex with multiple peaks, hence, it is very important to understand and predict the MPP under PSC in order to extract the maximum possible power. This paper presents the development of PV array simulator for studying the I–V and P–V characteristics of a PV array under a partial shading condition. It can also be used for developing and evaluating new maximum power point tracking techniques, for PV array with partially shaded conditions. It is observed that, for a given number of PV modules, the array configuration significantly affects the maximum available power under partially shaded conditions. This is another aspect to which the developed tool can be applied. The model has been experimentally validated and the usefulness of this research is highlighted with the help of several illustrations

A shade dispersion scheme using Latin square arrangement to enhance power production in solar photovoltaic array under partial shading conditions

2018 ◽  
Vol 10 (5) ◽  
pp. 053506 ◽  
Author(s):  
Gurusamy Madhusudanan ◽  
Subramaniam Senthilkumar ◽  
I. Anand ◽  
Padmanaban Sanjeevikumar
Keyword(s):  
Latin Square ◽  
Power Production ◽  
Solar Photovoltaic ◽  
Partial Shading ◽  
Photovoltaic Array
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