بررسی و شبیه‌سازی تأثیر انحراف زنجیره مقره بشقابی بر توزیع ولتاژ و میدان الکتریکی آن با استفاده از روش اجزاء محدود

نوع مقاله : مقاله پژوهشی

نویسندگان

1 نویسنده مسئول؛ استاد، دانشگاه علم و فناوری مازندران، بهشهر، ایران

2 دانشجوی کارشناسی، دانشگاه علم و فناوری مازندران، بهشهر، ایران

چکیده

شدت میدان الکتریکی از جمله عوامل تأثیرگذار بر تخلیه کرونا و عیب عایقی مقره­های فشارقوی می­باشد. لذا محاسبة پتانسیل و میدان الکتریکی مقره‌ها، از اهمیت زیادی در طراحی و توسعة خطوط انتقال برخوردار است. گاها به‌دلیل محدودیت­های اتصال زنجیره مقره، زنجیره مقره­ها با زاویه خاصی نسبت به خط عمود متصل می­شوند و وجود این انحراف می­تواند موجب تغییر در توزیع میدان و پتانسیل الکتریکی زنجیره مقره شود. در این راستا، در این مقاله، تأثیر انحراف زنجیره مقره بر توزیع میدان و پتانسیل الکتریکی زنجیره در سطح ولتاژ 230 کیلوولت بررسی و شبیه­سازی شده است. شبیه­سازی این نوع زنجیره مقره در محیط سه بعدی نرم­افزار COMSOL مبتنی‌بر روش اجزاء محدود انجام گردیده و تأثیر انحراف­های 15 و 30 درجه­ای بر توزیع میدان و پتانسیل الکتریکی زنجیره مقره بشقابی، بازده زنجیره مقره و طول مؤثر آن بررسی شده است. نتایج حاصله از شبیه­سازی نشان­دهندة تأثیر بسزای انحراف زنجیره مقره بر توزیع میدان الکتریکی، توزیع پتانسیل الکتریکی و در نتیجه بازده و استقامت عایقی  زنجیره مقره بشقابی می­باشد.

کلیدواژه‌ها


عنوان مقاله [English]

The investigation and simulations of the suspension insulator string offset effects on the voltage and electric field distributions using the finite element method

نویسندگان [English]

  • Masume Khodsuz 1
  • Reza Haghgoo rostami 2
1 Professor, Mazandaran University of Science and Technology, Behshahr, Iran
2 Undergraduate student, Mazandaran University of Science and Technology, Behshahr, Iran
چکیده [English]

The electric field is one of the main factors which causes the corona discharge and insulation defect of high voltage insulators. Therefore, the voltage distribution and electric field calculations along the insulators is important for the design and development of transmission lines. Depending on the construction position, suspension insulators are connected at a certain angle to the vertical line. This is called insulator string deviation. The insulator string deviation can change the electric field distribution of the insulator string. In this paper, the insulator string offset effect on the electric field distribution of a 230 kV suspension insulator string has been simulated. The insulator string has been simulated in COMSOL software based on the finite element method. The effects of 15 and 30-degree insulator string deviations on the electric field distribution, the insulator string efficiency, and the effective length of the insulator string, have been investigated. Then, the results have been compared with the insulator string without the offset. The simulation results show the significant effect of the insulator string deviation on the electric field and voltage distribution of the insulator string. Also, the effect of insulator string deviation on the effective length of the string and its dielectric strength is significant.

کلیدواژه‌ها [English]

  • Insulator String Offset
  • Electric Field Intensity
  • Suspension Insulator String
  • Finite Element Method

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دوره 10، شماره 1 - شماره پیاپی 24
شماره پیاپی 24، دوفصلنامه بهار و تابستان
فروردین 1401
صفحه 91-97
  • تاریخ دریافت: 28 اردیبهشت 1400
  • تاریخ بازنگری: 05 تیر 1400
  • تاریخ پذیرش: 06 تیر 1400
  • تاریخ انتشار: 01 فروردین 1401