الگوریتمی جهت آشکارسازی خطا در خطوط انتقال HVDC

نوع مقاله : علمی-پژوهشی

نویسندگان

دانشکده فنی مهندسی - دانشگاه شاهد

چکیده

در این مقاله با استفاده از مشخصه‌ی گذرای مؤلفه‌ی خطای ولتاژ و جریان اندازه­گیری­شده در یک طرف خط انتقال، الگوریتمی برای آشکارسازی خطا در خطوط HVDC پیشنهاد شده­است. در الگوریتم پیشنهادی، هنگامی­که واحد شروع عملکرد حفاظت در سیستم حفاظت وجود خطایی را تایید کند، الگوریتم آشکارساز خطا از میزان همبستگی سیگنال‌های ولتاژ و جریان خطا برای تعیین جهت خطا استفاده می­کند، سپس با استفاده از مولفه هارمونیکی فرکانس‌ بالای  جریان خطا، وجود خطا در زون حفاظتی تشخیص داده می­شود. درانتها، با حذف کوپلینگ بین جریان‌های قطب مثبت و منفی خط انتقال، قطب دارای خطا از قطب سالم در سیستم دوقطبی‌ تمایز داده می­شود. نتایج شبیه­سازی برای انواع خطا‌ها گویای صحت عملکرد روش پیشنهادی می‌باشد.

کلیدواژه‌ها

عنوان مقاله [English]

An Algorithm for Fault Detection in HVDC Transmission Lines

نویسندگان [English]

  • M. Akhbari
  • H. Soori
Electrical and Electronic Engineering Department, Shahed University, Tehran, Iran
چکیده [English]

In this paper, an algorithm is proposed for fault detection in HVDC lines using transient characteristic of the fault component of voltage and current measured on one side of the transmission line. In the proposed algorithm, when the starting unit of the protection system confirms the occurrence of fault, the fault voltage, and current correlation level is used to determine the fault direction and then by using high-frequency harmonic component of the fault current the fault is detected in the protective zone. Finally, by removing the coupling between the currents of positive and negative poles the faulted line is distinguished from a healthy line in the DC bipolar system. The simulation results for a variety of faults verify the validity of the proposed method.

کلیدواژه‌ها [English]

  • High voltage direct current transmission lines
  • fault detection
  • power system protection
  • correlation coefficient

مراجع

[1]      Jian Liu, Nengling Tai, Chunju Fan, Wentao Huang, "Protection scheme for high-voltage direct-current transmission lines based on transient AC current," IET Generation, Transmission & Distribution, vol. 9, no. 16, p. 2633–2643, 2015.
[2]      Shu-ping Gao, Xu Chu, Quan-yu Shen, Xing-fu Jin, Juan Luo, Ye-yi Yun, Guo-bing Song, "A novel whole-line quick-action protection principle for HVDC transmission lines using one-end voltage," Electrical Power and Energy Systems, vol. 65, pp. 262–270, 2015.
[3]      Guobing Song, Member, Xu Chu, Shuping Gao, Xiaoning Kang, Member and Zaibin Jiao, "A New Whole-Line Quick-Action Protection Principle for HVDC Transmission Lines Using One-End Current," IEEE Transactions On Power Delivery, vol. 30, no. 1, pp. 599 - 607, 2015.
[4]      Shuping Gao, Guobing Song, Zhibin Ma, Xingfu Jin, "Novel pilot protection principle for high-voltage direct current transmission lines based on fault component current characteristics," IET Generation, Transmission & Distribution, vol. 9, no. 5, pp. 468–474, 2015.
[5]      Fei Kong, Zhiguo Hao and Baohui Zhang, "A Novel Traveling Wave Based Main Protection Scheme for ±800 kV UHVDC Bipolar Transmission Lines," IEEE Transactions on Power Delivery, vol. 31, Iss. 5, pp. 2159 - 2168, 2016.     
[6]      Fei Kong, Zhiguo Hao andBaohui Zhang, " A novel differential current protection scheme for CSC-HVDC transmission lines," IET Generation, Transmission & Distribution, vol. 11, Iss: 4, pp. 978-986, 2017.
[7]      J. Liu, N. Tai, Ch. Fan, Y. Yang,"Transient measured impedance based protection scheme for DC line faults in ultra high-voltage direct-current system," IET Generation, Transmission & Distribution, vol. 10, Iss 14, pp. 3597 - 3609, 2016.
[8]      Sheng Lin , Shan Gao, Zhengyou He and Yujia Deng, "A Pilot Directional Protection for HVDC Transmission Line Based on Relative Entropy of Wavelet Energy," Entropy, vol. 17, pp. 5257-5273, 2015.
[9]      Xiang-Ning Lin, Menghua Zhao, Khafri Alymann, Pei Liu, "Novel Design of a Fast Phase Selector Using Correlation Analysis," IEEE Transactions On Power Delivery, vol. 20, no. 2, pp. 1283-1290, 2005.
[10]      X. Jin, G. Song, "A Novel Pilot Protection for VSC-HVDC Transmission Lines Based on Correlation Analysis," Energy and Power Engineering, vol. 5, pp. 1182-1186, 2013.
[11]      Guobing Song, Chenqing Wang, Ting Wang, Mostafa Kheshti, Xiaoning Kang, "A Phase Selection Method for Wind Power Integration System Using Phase Voltage Waveform Correlation," IEEE Transactions on Power Delivery, no. 99, 2016.
[12]      Fei Kong, Zhiguo Hao, Song Zhang and Baohui Zhang, "Development of a Novel Protection Device for Bipolar HVDC Transmission Lines," IEEE Transactions on Power Delivery, vol. 29, no. 5, pp. 2270-2278, 2014.
[13]      Zhao Li, Guibin Zou, Bingbing Tong, Houlei Gao, Qian Feng, "Novel Traveling Wave Protection Method for High Voltage DC Transmission Line," Power & Energy Society General Meeting, Denver, Colorado, 2015.

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