فهرست مقالات power conversion

• دسترسی آزاد مقاله
  • صفحه چکیده
  • متن کامل
  
  1 - Analysis and Simulation of an Augmentated DC-DC Converter With the Ability to Remove the Flow of Input Stream
  Faezeh Ebrahimzadeh1 Ebrahim Babaei
  In this article a boost dc-dc converter with the ability to remove the input current ripple is given for specific work cycle.Ability to remove the input current ripple in this structure is obtained without increasing the number of elements compared to other structures.I چکیده کامل

  In this article a boost dc-dc converter with the ability to remove the input current ripple is given for specific work cycle.Ability to remove the input current ripple in this structure is obtained without increasing the number of elements compared to other structures.In addition, the converter provided without the need for a large cycle of work or boost transformers produced high voltage gain without utilizing high values of duty cycle or boosting transformers. These features make the converter provided for the transfer of low voltage power sources, such as renewable resources. The converter operation has been investigated in the working modes and the relations related to this converter have been calculated. Ultimately the structure is provided in the PSCAD software and simulation results are presented to validate the performance and relationships obtained for this structure. پرونده مقاله
• دسترسی آزاد مقاله
  • صفحه چکیده
  • متن کامل
  
  2 - شبیه سازی و ساخت یک مبدل غیر ایزوله کاهنده در شرایط ZCS
  ناهید همتیان مسعود جباری
  در این مقاله یک مبدل رزنانسی کاهنده با بهره ولتاژمنفی و بازده بالا ارائه شده است. مبدل پیشنهادی ولتاژ ورودی را معکوس و کاهش می‌دهد. از تکنیک ZCS به منظور کاهش تلفات سوئیچینگ و تداخلات الکترومغناطیسی استفاده شده است. به منظور فراهم کردن شرایط سوئیچینگ نرم برای تمام المان چکیده کامل

  در این مقاله یک مبدل رزنانسی کاهنده با بهره ولتاژمنفی و بازده بالا ارائه شده است. مبدل پیشنهادی ولتاژ ورودی را معکوس و کاهش می‌دهد. از تکنیک ZCS به منظور کاهش تلفات سوئیچینگ و تداخلات الکترومغناطیسی استفاده شده است. به منظور فراهم کردن شرایط سوئیچینگ نرم برای تمام المان‌های نیمه هادی، شبکه رزنانسی LLC مورد استفاده قرار گرفته است. نتایج عملی، بی‌نقص بودن عملکرد مبدل پیشنهادی و همچنین درستی آنالیز تئوری را تائید می‌کند. پرونده مقاله
• دسترسی آزاد مقاله
  • صفحه چکیده
  • متن کامل
  
  3 - Recent Advances in the Development of Quantum Materials for the Construction of Solar Cells: A Mini Review
  O. Ashkani B. Abedi-Ravan Y. Yarahmadi
  Solar cells are one of the most important equipment’s in the field of clean and novel energy that can be used without chemical pollution. Solar cells are very valuable equipment that by using them, in addition to reducing environmental pollution, can benefit from clean چکیده کامل

  Solar cells are one of the most important equipment’s in the field of clean and novel energy that can be used without chemical pollution. Solar cells are very valuable equipment that by using them, in addition to reducing environmental pollution, can benefit from clean energy. Solar cells are generally used in various industries, including aerospace, clean energy and even transportation. In the meantime, increasing the efficiency of solar cells is of great importance, and the development of quantum science has made a significant contribution to this issue. The use of quantum dots containing different materials such as graphene, carbon, gallium, lead and similar materials can increase the efficiency of solar cells from 3 to more than 50% on average. Also, the power conversion efficiency in solar cells developed with quantum dot technology reports from 1 to more than 15% improvements compared to conventional solar cells. In this research, to summarize the latest achievements in this field, an overview of the importance of quantum dots about the development of solar cells has been done. پرونده مقاله