Publications
Hybrid Spotted Hyena based Load Balancing algorithm (HSHLB)
Dec 15, 2024Journal Mesopotamian Journal of Big Data
Publisher Mesopotamian Academic Press
DOI DOI: 10.58496/MJBD/2024/014
Issue 29586453
Volume 2024
Abstract In this article, we probe into the middle of our suggested dynamic burden distribution mechanism. We name it Hybrid Spotted Hyena based Load Balancing algorithm (HSHLB). To begin with, the current literature provides an overview of the Spotted Hyena Optimization Algorithm (SHOA) and its basic behaviors that include migration, and attacking. Next, we unveil what is referred to as Load Balancing Algorithm (LB), and explain its fundamental concepts at the same time as we reemphasize various special features. Thirdly, realizing that both SHOA and LB methods have their comparative advantages and disadvantages within our system, engagement in a hybridization process between SHOA and LB yields reputation for a more powerful HSHLB. Fourthly I will demonstrate how these three algorithms are applied jointly, and how best their beneficial qualities are taken by HSHLB without bringing about their disadvantageous attributes. While reading this section, the reader will be able to educates himself on how the HSHLB functions, which will enable him understand all the processes that are involved in
Enhancing PV Power Extraction Under Partial Shading Condition with Shade Dispersion Strategy
Jun 2, 2024Journal Diyala Journal of Engineering Sciences
Publisher Diyala Journal of Engineering Sciences
DOI DOI: 10.58496/MJBD/2024/014
Volume Vol (17) No 1,
Abstract Improving photovoltaic (PV) system efficiency is a popular field of research. Partial shading (PS) adversely impacts the solar system's output power, which considerably reduces the system's efficiency. As a result, this issue has been the subject of extensive investigation. When sunlight is blocked off of photovoltaic cells in a PV array, panel, or module, it is referred to as shading. Using a method that involves spreading shade throughout the PV array is one of the suggested fixes for this issue. This study compares the performance of a shade dispersion method to different PV array configurations under different partial shading circumstances, and it looks at how effective it is in a 3x3 PV system. MATLAB/Simulink is used for the evaluation. To achieve this, shade dispersion-based TCT (SD-TCT) under various shading scenarios has been compared to the current standard designs, which include series-parallel (SP), Honey-Comb (HC), Bridge-Linked (BL), and Total Cross-Tied (TCT). Based on the global maximum power (GMPP), mismatch power losses, fill factor (FF), percentage power losses (PL %), and PV system efficiency, the efficacy of the shade dispersion technique was assessed. For every partial shading condition (PSC) that was studied, the SD-TCT configuration outperforms the other setups in terms of fill factor and power loss. © 2024, University of Diyala. All rights reserved.
Optimal PV array configurations for partial shading conditions
Aug 22, 2023Journal Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)
Publisher Institute of Advanced Engineering and Science (IAES).
DOI doi.org/10.11591/ijeecs.v32.i1.pp1-12
Issue p-ISSN: 2502-4752, e-ISSN: 2502-4760
Volume 32
Abstract Increasing the effectiveness of photovoltaic (PV) power generation systems is a major barrier to their widespread use. Partial shading conditions (PSCs), which are caused by nearby objects like trees, buildings, and clouds, reduce the energy produced by PV systems and may be mitigated by the reconfiguration of PV arrays. A novel approach dubbed a modified series-parallel (MSP) setup, was suggested in this paper and compares its performance to four PV configuration strategies: series-parallel (SP), total-cross-tied (TCT), bridge-linked (BL), and honey-comb (HC). A 3×3 solar array is used in five partial shading arrangements. MATLAB/Simulink simulates all shading conditions. This study indicated that MSP delivers high performance and is superior to all other configurations in terms of maximum power in even and uneven row-shaded cases. in the case of an even column shaded, the performance of (SP, BL, HC, and TCT) was equal in terms of the maximum power obtained, while MSP was the least in comparison. the performance of the TCT configuration was the best compared to the other configuration when shading the PV system vertically unevenly. Finally, for diagonal shading, TCT and MSP configurations work best. Shading loss, mismatch loss and fill factor (FF) results were also compared. © 2023 Institute of Advanced Engineering and Science. All rights reserved.
Predictive Current Control of Voltage Source Inverters Using a Discrete-Time Model
Jun 8, 2023Journal Journal Europeen des Systemes Automatises
Publisher International Information and Engineering Technology Association
DOI 10.18280/jesa.560306
Issue 3
Volume 56
Abstract In this investigation, the most popular multilevel inverter topologies and control approaches have been analyzed. The various benefits, such as low power dissipation on power switches, low harmonic contents, and low Electromagnetic Interference (EMI) outputs, Multilevel Inverter Topologies (MLIs) are finding more and more usage in medium and high-power applications. An optimization tool for the layout of a three-phase Voltage Source Inverter (VSI) using a diode-based rectifier has been created. For general-purpose industrial motor drives that use three-phase Alternating Current (AC), the Pulse Width Modulation (PWM) voltage source inverter with diode front-end rectifier has emerged as the converter of choice. This study discusses the implementation of predictive current control in a voltage source inverter. This technique makes use of a discrete-time model of the system to foresee the load current for every conceivable inverter-generated voltage vector. The voltage vector is chosen that minimizes a quality function. In this study, we use a quality function that measures the current error at the next sample interval. It is compared to hysteresis control and pulse width modulation control to see how well the suggested predictive control approach performs. The results demonstrate that the predictive strategy manages load current extremely well and outperforms traditional methods. © 2023 Lavoisier. All rights reserved.