فصلنامه سیستم های انرژی پایدار

فصلنامه سیستم های انرژی پایدار

تحلیل انرژی، اگزرژی و اقتصادی نیروگاه فتوولتائیک خورشیدی با آرایش‌های ثابت و ردیاب در اقلیم‌های مختلف

نوع مقاله : مقاله پژوهشی

نویسندگان
1 داﻧﺸﺠﻮی دﮐﺘﺮی ﻣﻬﻨﺪﺳﯽ ﺳﯿﺴﺘﻢﻫﺎی اﻧﺮژی داﻧﺸﮑﺪة ﻣﻬﻨﺪﺳﯽ اﻧﺮژی و ﻣﻨﺎﺑﻊ ﭘﺎﯾﺪار، داﻧﺸﮑﺪﮔﺎن ﻋﻠﻮم و ﻓﻨﺎوری‌ﻫﺎی ﻣﯿﺎن‌رﺷـﺘﻪای داﻧﺸـﮕﺎه ﺗﻬـﺮان، ﺗﻬﺮان، اﯾﺮان
2 داﻧﺸﺠﻮی کارشناسی ﻣﻬﻨﺪﺳﯽ اﻧﺮژی داﻧﺸﮑﺪة ﻣﻬﻨﺪﺳﯽ اﻧﺮژی و فیزیک، داﻧﺸـﮕﺎه صنعتی امیرکبیر (پلی‌تکنیک تهران)، ﺗﻬﺮان، اﯾﺮان
3 استادیار ﻣﻬﻨﺪﺳﯽ ﺳﯿﺴﺘﻢ ﻫﺎی اﻧﺮژی داﻧﺸﮑﺪة ﻣﻬﻨﺪﺳﯽ اﻧﺮژی و ﻣﻨﺎﺑﻊ ﭘﺎﯾﺪار، داﻧﺸﮑﺪﮔﺎن ﻋﻠﻮم و ﻓﻨﺎوری‌ﻫﺎی ﻣﯿﺎن‌رﺷـﺘﻪای داﻧﺸـﮕﺎه ﺗﻬـﺮان، ﺗﻬﺮان، اﯾﺮان
4 استادیار بخش مکانیک خودرو، دانشکدۀ مهندسی مکانیک، دانشگاه تربیت دبیر شهید رجایی، تهران، ایران
10.22059/ses.2026.416224.1261
چکیده
در این پژوهش، عملکرد انرژی، اگزرژی و اقتصادی یک نیروگاه فتوولتائیک متصل به شبکه با ظرفیت نامی 1 مگاوات در چهار اقلیم منتخب ایران شامل یزد، بیرجند، همدان و سنندج بررسی شد. به‌ منظور ارزیابی اثر شرایط اقلیمی و آرایش نصب، چهار پیکربندی شامل سامانۀ ثابت، ردیاب تک‌محورۀ افقی، ردیاب تک‌محورۀ عمودی و ردیاب دو‌محوره در نرم‌افزار PVsyst شبیه‌سازی شدند و خروجی‌های ساعتی برای محاسبۀ شاخص‌های انرژی، اگزرژی و اقتصادی استفاده شدند. نتایج نشان داد ردیاب دو‌محوره در تمامی شهرها بیشترین تولید سالانۀ برق را دارد؛ به طوری که تولید آن در یزد، بیرجند، سنندج و همدان به‌ترتیب برابر با 2/2868، 9/2828، 5/2711 و 7/2351 مگاوات‌ساعت بود. با این‌حال، بیشترین راندمان اگزرژی سالانه، برابر با 52/19 درصد، برای سامانۀ ثابت در همدان به دست آمد که نشان می‌دهد بیشینۀ تولید انرژی الزاماً با بالاترین کیفیت ترمودینامیکی تبدیل انرژی همراه نیست. از دیدگاه اقتصادی، فروش برق در بورس انرژی در مقایسه با سازوکار خرید تضمینی سودآوری بیشتری ایجاد کرد. بهترین عملکرد اقتصادی مربوط به ردیاب تک‌محورۀ افقی در یزد بود که بیشترین ارزش خالص فعلی (NPV) برابر با 8/642 میلیارد تومان، بیشترین نرخ بازده داخلی (IRR) برابر با 43/54 درصد و کمترین هزینۀ ترازشدۀ انرژی (LCOE) برابر با 7470 تومان بر کیلووات‌ساعت را نشان داد. در مجموع، نتایج بیانگر آن است که آرایش دو‌محوره از نظر بیشینه‌سازی تولید انرژی، سامانۀ ثابت از منظر عملکرد اگزرژیک و ردیاب تک‌محورۀ افقی از نظر موازنۀ اقتصادی عملکرد مطلوب‌تری دارند؛ از این‌رو، انتخاب آرایش مناسب باید بر پایۀ ارزیابی یکپارچۀ شرایط اقلیمی و شاخص‌های انرژی، اگزرژی و اقتصادی انجام شود.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Energy, Exergy, and Economic Analysis of a Solar Photovoltaic Power Plant with Fixed and Tracking Configurations across Different Climatic Regions

نویسندگان English

Erfan Erfan Abbasian Hamedanni 1
Yazdan Imani 2
Kian Bahramniakan 2
Ali Roghani Araghi 3
Ali Farhadi 4
1 Ph.D. Student, School of Energy Engineering and Sustainable Resources, College of Interdisciplinary Science and Technology, University of Tehran, Tehran, Iran
2 B.Sc. Student, Department of Energy Engineering and Physics, Amirkabir University of Technology, Tehran, Iran
3 Assistant Professor, School of Energy Engineering and Sustainable Resources, College of Interdisciplinary Science and Technology, University of Tehran, Tehran, Iran
4 Assistant Professor, Mechanical Engineering Faculty, Shahid Rajaee Teacher Training University, Tehran, Iran
چکیده English

In this study, the energy, exergy, and economic performance of a grid-connected photovoltaic power plant with 1 MW nominal capacity in four selected climates of Iran, including Yazd, Birjand, Hamadan, and Sanandaj, was investigated. To evaluate the impact of climatic conditions and installation configuration, four configurations including a fixed system, horizontal single-axis tracker, vertical single-axis tracker, and dual-axis tracker were simulated in PVsyst, and hourly outputs were used to calculate energy, exergy, and economic indicators. Results showed that the dual-axis tracker provides the highest annual electricity generation in all cities; specifically, its production in Yazd, Birjand, Sanandaj, and Hamadan was 2868.2, 2828.9, 2711.5, and 2351.7 MWh, respectively. However, the highest annual exergy efficiency of 19.52% was obtained for the fixed system in Hamadan, indicating that maximum energy production is not necessarily accompanied by the highest thermodynamic quality of energy conversion. From an economic perspective, electricity sales in the energy exchange generated higher profitability than the guaranteed purchase mechanism. The best economic performance was achieved by the horizontal single-axis tracker in Yazd, with the highest net present value (NPV) of 642.8 billion Tomans, highest internal rate of return (IRR) of 54.43%, and the lowest levelized cost of energy (LCOE) of 7470 Tomans/kWh. Overall, results indicate that the dual-axis configuration is more favorable for maximizing energy production, the fixed system for exergy performance, and the horizontal single-axis tracker for economic balance; therefore, choosing the appropriate configuration should be based on an integrated assessment of climatic conditions and energy, exergy, and economic indicators.

کلیدواژه‌ها English

Photovoltaics
Solar tracker
Energy and Exergy analysis
Economic analysis
Climatic diversity
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