تحلیل تأثیر نسبت ظرفیت پنل به اینورتر بر تولید انرژی و اقتصاد نیروگاه‌های خورشیدی (نمونۀ مورد مطالعه: کشور ایران)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی، دانشکدۀ فنی شهید رجایی شیراز، دانشگاه ملی مهارت، شیراز، ایران

2 استادیار بخش مکانیک خودرو، دانشکدۀ مهندسی مکانیک، دانشگاه تربیت دبیر شهید رجایی، تهران، ایران

3 استادیار بخش انرژی ـ هوافضا، دانشکدۀ مهندسی مکانیک، دانشگاه شیراز، شیراز، ایران

4 استاد تمام مهندسی سیستمهای انرژی دانشکدۀ مهندسی انرژی و منابع پایدار، دانشکدگان علوم و فناوریهای میان‌رشتهای دانشگاه تهران، تهران، ایران

چکیده

این مطالعه به بررسی تأثیر انتخاب نسبت بهینۀ ظرفیت پنل به ظرفیت اینورتر بر میزان تولید انرژی الکتریکی نیروگاه خورشیدی می‌پردازد. به منظور کمی‌سازی تأثیر این نسبت در ماه‌های مختلف در هر اقلیم بر میزان تولید، از نرم‌افزار PVsyst استفاده شده است. ارزیابی تولید در پنج نسبت در بازه 9/0 تا 14/1 برای 100 نقطۀ کشور صورت پذیرفت. براساس نتایج به‌دست‌آمده، درصد تغییر میزان تولید در محدودۀ درصد تغییر ظرفیت پنل قرار می‌گیرد و در ماه‌های مختلف برای هر اقلیم متفاوت است، اما به طور کلی در چهار ماه می، جون، جولای و آگوست کران تغییر برای نقاط مورد بررسی بسیار محدود است. محدودۀ تغییرات تولید ناشی از تغییر نسبت ظرفیت پنل به اینورتر، برای نسبت‌های 9/0 (کاهش 78/11 درصد ظرفیت پنل)، 96/0 (کاهش 88/5 درصد ظرفیت پنل)، 08/1 (افزایش 88/5 درصد ظرفیت پنل) و 14/1 (افزایش 78/11 درصد ظرفیت پنل)، به‌ترتیب در بازه‌های 81/11- درصد تا 64/11- درصد (میانگین 76/11- درصد)، 91/5- درصد تا 77/5- درصد (میانگین 87/5- درصد)، 32/5 درصد تا 90/5 درصد (میانگین 77/5 درصد) و 12/10 درصد تا 78/11 درصد (میانگین 27/11 درصد) پیش‌بینی می‌شود. همچنین، در صورتی که افزایش درصد افزایش هزینۀ سرمایه‌گذاری به ازای هر درصد افزایش ظرفیت پنل فتوولتائیک در محدودۀ 5/90 درصد تا 3/100 درصد و 1/86 درصد تا 2/100 درصد به‌ترتیب برای دو نسبت 08/1 و 14/1 باشد، این افزایش نسبت ظرفیت پنل به ظرفیت اینورتر صرفۀ اقتصادی خواهد داشت. در میان سناریوهای مورد بررسی نسبت 08/1 از توجیه‌پذیری بالاتر برخوردار است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Analysis of the Impact of Panel-to-Inverter Capacity Ratio on Energy Production and Economics of Solar Power Plants: A Case Study of Iran

نویسندگان [English]

  • Ali Askari 1
  • Ali Farhadi 2
  • Amirhossein Fathi 3
  • Hossein Yousefi 4
1 BSc Candidate, National University of Skills, Shiraz, Iran
2 Assistant Professor, Mechanical Engineering Faculty, Shahid Rajaee Teacher Training University, Tehran, Iran
3 Assistant Professor, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
4 Professor, School of Energy Engineering and Sustainable Resources, College of Interdisciplinary Science and Technology, University of Tehran, Tehran, Iran
چکیده [English]

This study investigates the impact of selecting an optimal panel-to-inverter capacity ratio on the electricity generation of photovoltaic (PV) power plants. To quantify the influence of this ratio on monthly energy yield across different climatic regions, PVsyst simulation software was employed. The energy output was assessed for five different ratios ranging from 0.90 to 1.14 across 100 locations throughout Iran. The percentage change in electricity production closely mirrors the percentage change in panel capacity, although this relationship varies by month and climate. Generally, for the months of May, June, July, and August, the variability in output across the studied locations is minimal. The predicted ranges of energy output variation due to changes in the panel-to-inverter capacity ratio are as follows: 1) For a ratio of 0.90 , the output change ranges from −11.81% to −11.64% (mean: −11.76%). 2) For a ratio of 0.96, the range is −5.91% to −5.77% (mean: −5.87%). 3) For a ratio of 1.08 , the output increase ranges from +5.32% to +5.90% (mean: +5.77%). 4) For a ratio of 1.14 , the output increase is between +10.12% and +11.78% (mean: +11.27%). Furthermore, if the increase in capital investment per percentage increase in panel capacity remains within the range of 90.5% to 100.3% and 86.1% to 100.2% for ratios of 1.08 and 1.14 respectively, the increase in the panel-to-inverter ratio would be considered economically justified. Among the scenarios analyzed, a ratio of 1.08 demonstrates the highest economic feasibility.

کلیدواژه‌ها [English]

  • Electricity generation
  • Increasing the efficiency/productivity of solar power plants Investment and operational costs of solar power plants
  • Optimal panel capacity to inverter capacity ratio
  • Technical-economic analysis

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فصلنامه سیستم های انرژی پایدار
دوره 5، شماره 1
دی 1404
صفحه 39-55

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