多區域微電網保護方法設計與電驛雛型試驗

Protection Method Design and Relay Prototype Tests for a Multi-Zone Microgrid

林勁志(Ching-Chih Lin)

指導教授 ： 陳士麟

中原大學/電機資訊學院/電機工程研究所/碩士(2017年)

https://doi.org/10.6840/cycu201700087

摘要

對於微電網內幹線、電源/負載分路之故障偵測，本研究發展電流方向偵測法，當故障發生時可以藉由故障電流方向以及故障兩端電驛間之通訊，比對後檢出故障發生線段。運用模擬器產生類比波形數據及過去核研所多區域微電網人工故障試驗之數據，進行電流方向偵測法測試，模擬器產生包括四類故障之模擬波形數據，所稱四類故障是指單相及兩相接地以及兩相與三相短路故障。本研究亦在核研所微電網內執行人工故障試驗，測試電驛雛型之故障偵測能力，亦測試電驛雛型與靜態開關聯合動作遮蔽故障電流的能力。

關鍵字

微電網 ； 電驛 ； 故障偵測 ； 故障位置 ； 靜態開關

並列摘要

This study proposes a new current-direction detection method to effectively determine faulted sections on trunk lines, source/load laterals for multi-microgrids. Depending on the purpose of fault detection and location on trunk lines, source branches or load branches, the corresponding digital relays will apply the proposed current-direction detection method and exchange the data to their adjacent relays through a neighbor communication system.
Based on the simulation data, which include single phase to ground fault, double phase fault, double phase to ground fault, three phase fault of an analog signal machine, and the experiment data of INER multi-microgrid in 2015, the proposed current-direction detection method has been tested in detail. Field-test results have demonstrated that a prototype digital relay using the current-direction detection method can operate to detect and determine faulted sections in the INER multi-microgrid system. Last but not least, the ability of interrupting fault currents of a new static switch (a power-electronic switching device) has also been successfully tested with prototype digital relay.

並列關鍵字

Microgrid ； Relay ； Fault detection ； Fault location ； Static switch

參考文獻

[6] 施柏安，微電網保護電驛演算法之發展,中原大學電機系碩士論文,民國102年。

[8] 趙韋翔，多區域微電網保護系統設計,中原大學電機系碩士論文,民國104年。

[7] 陸映辰，低電壓微電網數位電驛發展與測試,中原大學電機系碩士論文,民國103年。

[1] H. Nikkhajoei and R. H. Lasseter, Microgrid Fault Protection Based on Symmetrical and Differential Current Components, Appendix P of CERTS Microgrid Laboratory Test Bed, University of Wisconsin-Madison, December 2006.

[2] J. L. Blackburn and T. J. Domin, Protection Relaying, Principles and Applications, 3rd ed. , CRC press,2007.