مشخصات پژوهش

صفحه نخست /بهینه سازی پویای آرایه های ...
عنوان
بهینه سازی پویای آرایه های خورشیدی با استفاده از الگوریتم زنبور عسل در مواجهه با سایه های نسبی
نوع پژوهش پایان نامه
کلیدواژه‌ها
بازآرایی دینامیکی، سلول های خورشیدی، سایه نسبی، الگوریتم زنبور عسل، توان حداکثری.
چکیده
The use of photovoltaic (PV) systems for energy production has always faced numerous challenges. For example, nearby buildings, trees, passing clouds, and even adjacent arrays may cause partial shading of photovoltaic arrays. In Germany and Japan, buildings equipped with photovoltaic systems experience annual losses of around 5-10% due to partial shading [1]. In Spain, the annual energy loss due to partial shading in photovoltaic farms has been reported to be around 5-6% [2]. Under partial shading conditions, the electrical performance of a solar array is significantly affected. Not only does the output power of shaded cells decrease, but due to their electrical connection with unshaded cells, they also have a detrimental effect on the performance of the unshaded cells [3]. If the current generated by a shaded cell creates a negative voltage, power will be dissipated in this cell, leading to a phenomenon called a hot spot, which can result in the burning of the cell or even damage to the array [4]. To counteract the problems caused by partial shading, several methods have been proposed, the simplest of which is the use of bypass diodes. These diodes are connected in parallel with the cells and reduce power loss by limiting the reverse voltage across the cell [5]. Rearrangement methods of arrays are divided into two groups: static and dynamic. In the static type, the physical position of the modules is shifted on the panel surface without altering their electrical connections in such a way that the shading is dispersed across the array [6-8]. A static configuration method inspired by the well-known Sudoku grid is discussed in [6]. Unfortunately, while this configuration improves efficiency, it is costly and complex in terms of rewiring. Most importantly, this configuration is limited to a 9x9 matrix, making it impossible to use if the number of rows and columns of the solar panel is not equal [9]. When partial shading occurs on a solar array, it leads to electrical m
پژوهشگران عقیل صاحب شویع البهادلی (دانشجو)، نوید تقی زادگان کلانتری (استاد راهنما)، جواد صالحی (استاد راهنمای دوم)