Fast Convergence Modified Particle Swarm Optimization Al-gorithm to Follow up String PV Modules Maximum Power Point under Different Climatic Conditions

Ehab Ali, A. Abdelsalam, Ahmed HossamEldin
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引用次数: 1

Abstract

: Photovoltaics are extensively used as a premium device for generating electricity from solar planet's power. Under uniform radiation, the photovoltaics' output characteristics have a non-linear frame with a unique maximum power point. This point changes its position when a sudden change in solar radiation occurs. Otherwise, when the PV string is subjected to partial shading conditions, several power peaks have appeared with only one Global maximum power. The classical maximum power point tracking strategies always fails to deal with these dynamic difficulties, especially, under unex-pected climatic changes. Many soft computing methods are previously constructed to deal with these problems, but the main hurdles remain how to manage this tracking with the fastest time, the smallest power oscillations, and the greatest efficiency. In this paper, a modified Particle Swarm Optimization algorithm was proposed that capable of excluding or promoting certain parts of the solution search area until reach and track the max power point. The suggested method has been simulated and practically tested and the results indicate that the suggested method outperforms the typical Particle Swarm Optimization algorithm with regards to the speed of Global maximum power point tracking with the lowest oscillation and highest efficiency. (PS); Particle Swarm Optimization (PSO); Global Maximum Power Point (GMPP).
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不同气候条件下串式光伏组件最大功率跟踪的快速收敛改进粒子群算法
光伏发电作为一种利用太阳能发电的优质设备被广泛使用。在均匀辐射下,光伏输出特性呈非线性框架,具有唯一的最大功率点。当太阳辐射发生突然变化时,这一点就会改变它的位置。否则,当PV串处于部分遮阳条件下时,出现多个功率峰值,只有一个全局最大功率。经典的最大功率点跟踪策略往往不能处理这些动态问题,特别是在气候变化的情况下。许多软计算方法已经被构建来处理这些问题,但主要的障碍仍然是如何以最快的时间、最小的功率振荡和最大的效率来管理这种跟踪。本文提出了一种改进的粒子群优化算法,能够排除或促进解搜索区域的某些部分,直到到达并跟踪最大功率点。仿真和实际测试结果表明,该方法在全局最大功率点跟踪速度、振荡最小、效率最高等方面优于典型粒子群算法。(PS);粒子群优化(PSO);全局最大功率点(GMPP)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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期刊介绍: The International Journal of Interdisciplinary Telecommunications and Networking (IJITN) examines timely and important telecommunications and networking issues, problems, and solutions from a multidimensional, interdisciplinary perspective for researchers and practitioners. IJITN emphasizes the cross-disciplinary viewpoints of electrical engineering, computer science, information technology, operations research, business administration, economics, sociology, and law. The journal publishes theoretical and empirical research findings, case studies, and surveys, as well as the opinions of leaders and experts in the field. The journal''s coverage of telecommunications and networking is broad, ranging from cutting edge research to practical implementations. Published articles must be from an interdisciplinary, rather than a narrow, discipline-specific viewpoint. The context may be industry-wide, organizational, individual user, or societal. Topics Covered: -Emerging telecommunications and networking technologies -Global telecommunications industry business modeling and analysis -Network management and security -New telecommunications applications, products, and services -Social and societal aspects of telecommunications and networking -Standards and standardization issues for telecommunications and networking -Strategic telecommunications management -Telecommunications and networking cultural issues and education -Telecommunications and networking hardware and software design -Telecommunications investments and new ventures -Telecommunications network modeling and design -Telecommunications regulation and policy issues -Telecommunications systems economics
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