کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | ترجمه فارسی | نسخه تمام متن |
---|---|---|---|---|---|
704647 | 1460886 | 2015 | 8 صفحه PDF | 15 صفحه WORD | دانلود رایگان |
کلمات کلیدی
1. مقدمه
2. تحلیل سیستم های حفاظت خط با کانال های مخابراتی کمکی
2.1. طرح 1: حفاظت دیستانس تکی با کانال مخابراتی کمکی منفرد
جدول 1. ماکزیمم و مینیمم نرخ های خرابی واحدهای سیستم حفاظت خط (d-روز، m-ماه).
جدول 2. تای ست های عملیات موفق سیستم در حفاظت دیستانس اصلی با کانال مخابراتی کمکی تکی
2.2. طرح 2: حفاظت های دیستانسمازاد که از یک کانال مخابراتی کمکی استفاده می کنند
جدول 3. تای-ست های عملیات موفق سیستم با حفاظت های دیستانس افزونه که از یک کانال مخابراتی کمکی استفاده می کنند
2.3. طرح 3: حفاظت های دیستانس افزونه با کانال مخابراتی خود کمکی
جدول 4. تای-ست های عملیات موفق سیستم حفاظت های دیستانس افزونه با کانال مخابراتی کمکی
2.4. طرح 4: حفاظت های دیستانس افزونه که از کانال های مخابراتی کمکی افزونه استفاده می کنند
جدول 5. تای-ست های عملیات موفق سیستم حفاظت های دیستانس افزونه با کانال های مخابراتی کمکی افزونه و اشتراکی
3. تحلیل مقایسه ای
جدول 6. شاخص های عملکرد اصلی طرح های حفاظت خط
4. نتیجه گیری
• The methodology presented in the Part I paper for the performance analysis of transmission line protection systems, based on a probabilistic approach to system successful operation, is applied to four different protection schemes with aided communication channels operating in today's transmission networks.
• The system performance takes into account equipment reliability factors: failure rate and time to repair.
• New probabilistic performance indicators for transmission line protection are introduced, which are useful for protection system design.
• The performance indicators allow quantifying the benefits of the different design options, such as redundancy or equipment sharing.
• The new indicators can be used in a cost/benefit analysis, as well as to assess maintenance strategies and equipment reliability requirements.
Following the Part I paper, a comparative performance analysis is presented, considering four different transmission line protection schemes, equipped with aided communication channels. In the Part I paper, the performance analysis methodology was presented, which is based on a probabilistic approach to protection system successful operation. The system performance takes in account equipment reliability factors such as failure rate and time to repair, and is assessed by the availability index. In the present paper, new performance indicators are introduced, which are applicable to transmission line protection system design, as well as to describe its probabilistic operation in other power system studies.Four different transmission line protection schemes with aided communication channels, operating in today's transmission networks, are compared. The results obtained for the performance indicators allow quantifying the benefits of the different design options. In particular, the effect of relay and communication channel redundancy, as well as communication channel sharing, is highlighted.Furthermore, results show that the newly defined performance indicators can be used in a cost/benefit analysis, as well as to assess maintenance strategies and communication reliability requirements.
Journal: Electric Power Systems Research - Volume 127, October 2015, Pages 339–346