Dynamic Reconfiguration Scheme of PV Arrays to Achieve Stable Output Voltage under Partial Shading Conditions
Journal Title: Engineering and Technology Journal - Year 2024, Vol 9, Issue 12
Abstract
Photovoltaic (PV) arrays are widely recognized as a significant source of clean and renewable electricity. However, they are susceptible to unavoidable non-uniform partial shading (PS) caused by factors such as clouds, buildings, and dust. PS leads to issues like hot spots, mismatch losses, and degradation of output power. Dynamic reconfiguration is a commonly used method to mitigate the effects of PS, where the interconnection of PV panels is modified based on shading conditions to maximize output. Dynamic reconfiguration techniques typically involve the use of sensors, programmable controllers, and switch matrices to achieve optimal operation. However, these approaches often suffer from system complexity and scalability limitations. To address these challenges, this paper proposes an automatic dynamic reconfiguration scheme that leverages the irradiation activity of PV panels to control their interconnection. A modular building block is introduced. These building blocks enable hierarchical interconnection of PV arrays, eliminating the need for a programmable microcontroller and associated circuitry, thus reducing complexity and cost. Furthermore, the hierarchical design facilitates easy scaling and expansion of the system. The effectiveness of the proposed reconfiguration scheme has been verified through both simulation and analytic results.
Authors and Affiliations
Omar Shakir Hamad ,Mohammed Ghadhban Ahmed ,Sabah Khudhair Ali , Abdulrahman Ikram Siddiq,
Keywords
Related Articles
- EP ID EP753453
- DOI 10.47191/etj/v9i12.17
- Views 27
- Downloads 1
IMPLEMENTATION OF A NEW ROUTING PROTOCOL WITHIN THE WIRELESS SENSOR NETWORKS WITH THE TARGET OF MINIMIZING ENERGY CONSUMPTION (USING A COMBINATION OF FUZZY ALGORITHM AND HARMONY SEARCH)
The Internet of things (IoT) has been following a fast-growing trend in recent years, and the wireless sensor networks account for the basis and, in fact, the regulatory framework of the internet of things regarding thei...
Design Optimization of a Run-Of-River Small Hydropower Plant: A Case Study of Mabula Kapi Site
Prior to construction, small or large hydropower plants undergo feasibility studies, which involve technical, economic, financial, social, and environmental aspects. Technical studies, particularly, include various engin...
A STUDY ON ESTIMATING THE LEACHATE POLLUTION INDEX AT GHAZIPUR LANDFILL SITE
In recent years managing solid wastes has been one of the burning problems in front of state and local municipal authorities. This is mainly due to scarcity of lands for landfill sites. In this context experts suggest th...
Design and Construction of Gas Fire Alert System
This research paper aspired to design and develop a gas leakage and fire monitoring and detection alarm system based on SMS. Most fire incidents in houses, schools and factories are caused by gas leakage. Many houses and...
RESEARCH ON THE INFLUENCE OF SOME FACTORS ON THE DEPARTURE ANGLE OF WARHEADS WHEN FIRING A SERIES
In this article, the equation for determining the projectile's departure angle taking into account the effects of several shot parameters is established. The parameters of the shot include the speed of rotation around th...