طراحی و ساخت مبدل دنبال کنندة جذب حداکثر توان براساس روش ولتاژ ثابت، جهت کاربرد در زیربخش تغذیة نانو ماهواره

نوع مقاله : مقاله پژوهشی

نویسندگان

1 عضو هیات علمی / گروه ماشین های الکتریکی دوار، پژوهشگاه نیرو، تهران

2 عضو هیات علمی / مجتمع دانشگاهی برق و کامپیوتر، دانشگاه صنعتی مالک‌اشتر

چکیده

سیستم شارژر ماهواره مبتنی بر آرایه های خورشیدی یکی از بخش‌های کلیدی حساس در طراحی و ساخت ماهوارها می‌باشد. دستیابی به قابلیت اطمینان بالا، جذب حداکثر توان مولد خورشیدی، راندمان بالا و حجم و وزن پایین از جمله اهداف اصلی در طراحی سیستم شارژر می‌باشد. در این مقاله طراحی و ساخت بخش‌های مختلف واحد شارژر یک نانو ماهواره طراحی و شبیه‌سازی می‌گردد. روش‌های مختلفی جهت جذب حداکثر توان از آرایه های خورشیدی ارائه گردیده است. برای کاربرد ماهواره، سادگی و قابلیت اطمینان بالا از جمله ویژگیهای مطلوب سیستم شارژر می‌باشد. در این مقاله یک روش ساده جهت پیاده‌سازی الگوریتم جذب حداکثر توان مبتنی بر تکنیک ولتاژ ثابت ارایه گردیده است. نو آوری این مقاله آشکار سازی ولتاژ نقطة کار بهینة پنل خورشیدی بر اساس اندازه‌گیری دمای سلول خورشیدی می‌باشد. با استفاده از ساختار مبدل بوست سنکرون، راندمان بخش مبدل تا 95% بهبود می یابد.  پس از طراحی و شبیه‌سازی سیستم شارژ ، زیر بخش‌های مختلف ویرایش اول برد شارژر پیاده‌سازی و تست گردیده است.

کلیدواژه‌ها

عنوان مقاله [English]

Design and implementation of maximum power point tracking converter based on constant voltage method for use in nano-satellite power supply

نویسندگان [English]

  • Hossein Azizi Moghaddam 1
  • Arash Dehestani Kelagar 2
  • Mohammad Reza Alizadeh Pahlavani 2
1 Assistant Professor / Electrical machine group , Niroo Research Institute
2 Assistant Professor / Faculty of Electrical & Computer Engineering, Malek Ashtar University of Technology
چکیده [English]

Solar-powered generator is one of the critical parts in designing and manufacturing of the satellites. Achieving a high degree of reliability and maximum absorption in the Solar-powered generator are two key factors considered by designers.   In this paper, designing and manufacturing different components of a charging part of a nano-satellite have been evaluated by considering environmental constraints.  Simplicity and high degree of reliability are the main aspects of the proposed method that lead to maximum amount of power absorption. The innovation of this paper is detecting the optimal operating point of the solar panel based on the measurement of the solar cell temperature. In addition, an I2C communication protocol has been implemented between PMU and C&DH in order to simultaneously monitor of voltage and current of various points and receiving controlling orders from the stations on earth.  After designing and simulating of the controller of the charging part of the satellite, various necessary components for building of each subsystem have been prepared. In the next step, prototype of the charging circuit board was built and tested.  According to the test results, necessary modifications were implemented on the final circuit board.  Finally, the last version of the PMU circuit board was designed and built. Utilizing the boost synchronous converter, the efficiency of the converter section is improved up to 95%.

کلیدواژه‌ها [English]

  • Solar panel
  • synchronous boost converter
  • maximum power point tracking
  • I2C protocol

مراجع

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