تحلیل سازگاری الکترومغناطیسی در یک کانال شامل کابل فشار متوسط و مخابراتی

نویسندگان

1 دانشگاه آزاد اسلامی - واحد علوم و تحقیقات - گروه برق قدرت

2 دانشگاه شهید بهشتی - دانشکده برق و کامپیوتر

چکیده

تحلیل سازگاری الکترومغناطیسی در فضای اطراف کابل‌های فشار متوسط یکی از مسائل مهم تحقیقاتی بوده و در این راستا استانداردهای متنوعی نیز تدوین شده‌است. در این مقاله فضای الکترومغناطیسی اطراف کابل‌های فشار متوسط شبیه‌سازی شده و اثر پوشش الکترومغناطیسی کابل‌ها در کاهش میدان‌های الکترومغناطیسی در یک فضا شامل یک مدار kV20 و کابل مخابراتی بررسی شده‌است. شبیه‌سازی در نرم‌افزارهای مبتنی‌بر المان محدود با مدل‌سازی در چهار حالت اعم از داشتن یا نداشتن پوشش الکترومغناطیسی هر یک از دو نوع کابل در محیط با تلف انجام شده‌است. مطابق تحقیقات پیشین، هیچ گزارشی مبنی‌بر تعیین فاصله مجاز مجاورتی کابل‌های فشارمتوسط و مخابراتی در محیط با تلف با بیشینه‌ای از میدان به‌روش المان محدود دردسترس نیست. حال‌آنکه در کاربردهای عملی کابل‌کشی بسیار مهم و راهگشا بوده که نقطه عطف مقاله به شمار می‌رود. درنهایت نتایج براساس محدودیت ارائه‌شده در استاندارد ICNIRP موردتحلیل و ارزیابی قرار گرفته است. در راستای راستی‌آزمایی نتایج مجدداً شبیه‌سازی در نرم‌افزار مبتنی تفاضل محدود CST انجام گردید، همچنین اندازه‌گیری میدان‌های الکترومغناطیسی کابل‌های فشارمتوسط تک‌هسته‌ای نیز در آزمایشگاه فشارمتوسط انجام شد که هر دو حکایت از اعتبار روش مدل‌سازی و نتایج شبیه‌سازی اجزاء محدود در این مقاله دارد.

کلیدواژه‌ها


عنوان مقاله [English]

Electromagnetic Compatibility (EMC) in a Canal Consist of High Voltage and Telecommunication Cable

نویسندگان [English]

  • R. Amirabadi Farahani 1
  • F. Faghihi 1
  • S. E. Afgheei 2
1 Islamic azad university, Science and Research Branch, Faculty of Electrical Engineering, Tehran, Iran
2 Shahid Beheshti, Faculty of Electrical Engineering, Tehran, Iran
چکیده [English]

Electromagnetic Compatibility (EMC) analysis around High Voltage (HV) cables is one of the important research problems, which several standards are published. In this paper, field simulation of HV cable space based on finite element method (FEM) is proposed to identify cable shielding effectiveness for a permitted distance of HV cable and communication cable proximity. FEM simulation method is performed for four situations including shielded cable or simple cable (cable with or without shield) for each type of HV and communication cable in losses environment. As authors are aware there is no research report for the amount of proximity distance for HV cable and communication cable in losses spaces in spite of partial approach in cabling route. Finally, simulation result is evaluated by comparison with ICNIRP standard constraints.FEM simulation results are validated by FDM based simulation software(CST); Also electromagnetic field measurement for one-core medium voltage voltage labratory. Both of them illustrates the authentication of FEM modeling of and simulation results of the investigation.

کلیدواژه‌ها [English]

  • Electromagnetic compatibility
  • maxwell equation
  • Finite element
  • high power cable
  • telecommunication cable
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