مهندسی مکانیک مدرس

مهندسی مکانیک مدرس

ارزیابی تجربی روش کنترلی حلقه باز برای یک ردیاب خورشیدی دومحوره

نوع مقاله : پژوهشی اصیل

نویسندگان
سیاوش گیتی فر
امیرسامان میرجلیلی
علی جمالی
سعید پیرولی زاده
وحید فخاری
دانشگاه شهید بهشتی
10.52547/mme.23.2.127
چکیده
امروزه با توجه به گسترش جوامع، پیشرفت روزافزون صنایع و تکنولوژی و همچنین افزایش نیاز جوامع به انرژی، تولید برق از منابع انرژی­ تجدید­پذیر مانند انرژی خورشیدی، که به محیط زیست آسیب نمی­زند و آلودگی اندکی دارد، موردتوجه بسیاری از محققان و مهندسان قرار گرفته­است. در این مقاله، به ارائه طرح جدیدی برای ردیاب خورشیدی دومحوره قطبی، طراحی و ساخت آن در ابعاد آزمایشگاهی و ارزیابی تجربی عملکرد آن به روش کنترل حلقه باز پرداخته می­شود. به این منظور، پس از بررسی مزایا و معایب طرح­های پیشین، طرح مفهومی جدید و متفاوتی برای ردیاب پیشنهاد می­شود. از جمله ویژگی­های ردیاب پیشنهادی می­توان به قابلیت هم­بندی، نصب و بهره­برداری سریع و آسان، خاصیت خودقفل­شوندگی، قابلیت دوران 360 درجه حول هر دو محوراشاره نمود. این ردیاب، محدودیتی برای استفاده در نواحی جغرافیایی مختلف از جمله نواحی نزدیک به قطب شمال یا جنوب و در ساعات ابتدایی و انتهایی روز که راستای تشعشع خورشید به شدت مایل است، ندارد. در ادامه، به طراحی جزئی ردیاب پیشنهادی و ارائه روش کنترلی حلقه­باز پرداخته می­شود. در نهایت، با انجام آزمون­های تجربی، توان تولیدی ردیاب پیشنهادی در مقایسه با صفحه خورشیدی ثابت مورد ارزیابی قرار می­گیرد. بر اساس نتایج حاصل، انرژی الکتریکی تولیدی بدست آمده از ردیاب خورشیدی پیشنهادی 49 درصد بیش­تر از صفحه خورشیدی ثابت است.
کلیدواژه‌ها
ردیاب خورشیدی
ردیاب دومحوره قطبی
کنترل حلقه باز
خاصیت خودقفل ‌شوندگی
طراحی و ساخت
ارزیابی تجربی

موضوعات

عنوان مقاله English

Experimental evaluation of the open-loop control method for a dual-axis solar tracker

نویسندگان English

Siavash Gitifar
Amir Saman Mirjalili
Ali Jamali
Saeed Pirvalizadeh
Vahid Fakhari
Shahid Beheshti University
چکیده English

These days, societies' need for energy increased due to the expansion of societies, industries, and technology. The production of electricity from renewable energy sources such as solar energy, which does not harm the environment and has little pollution, has attracted the attention of many researchers and engineers. This article will present a new plan for the dual polar axis solar tracker, its design and construction in laboratory dimensions, and the experimental evaluation of its performance using the open-loop control method. For this purpose, after examining the advantages and disadvantages of the previous designs, a new and different conceptual design for the tracker is proposed. Among the features of the proposed tracker, we can point out the ability to combine, install and operate quickly and easily, the self-locking feature, and the ability to rotate 360 ​​degrees around both axes. This tracker has no restrictions for use in different geographical areas, including areas near the North or South Pole and in the early and late hours of the day when the direction of the sun's radiation is strongly inclined. In the following, the detailed design of the proposed detector and the presentation of the open-loop control method will be discussed. Finally, by conducting experimental tests, the production power of the proposed detector is evaluated in comparison with a fixed solar panel. Based on the results, the electricity energy produced from the proposed solar tracker is 49% more than the fixed solar panel.

کلیدواژه‌ها English

Solar tracker
Dual-axis polar tracker
Open-loop control
Self-locking feature
Design and fabrication
Experimental Evaluation
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مهندسی مکانیک مدرس
دوره 23، شماره 2
بهمن 1401
صفحه 127-138