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系統識別號 U0026-2807201516022200
論文名稱(中文) 長距離海底電纜測距電驛保護設定之研究
論文名稱(英文) A Study on Distance Relay Protection Setting for the Long-Distance Submarine Cable
校院名稱 成功大學
系所名稱(中) 電機工程學系
系所名稱(英) Department of Electrical Engineering
學年度 103
學期 2
出版年 104
研究生(中文) 呂宸有
研究生(英文) Chen-Yu Lu
學號 n26024480
學位類別 碩士
語文別 英文
論文頁數 74頁
口試委員 指導教授-陳建富
口試委員-吳瑞南
口試委員-王瑋民
口試委員-鄭強
口試委員-楊維楨
中文關鍵字 測距電驛  電容效應  海底電纜  台灣  澎湖 
英文關鍵字 Distance Relay  Capacitance Effect  Submarine Cable  Taiwan  Penghu 
學科別分類
中文摘要 本論文主旨在於探討長距離海底電纜測距電驛保護設定,以未來連結台灣電網與澎湖再生能源系統之海底電纜為例進行規劃,其中使用電力系統模擬軟體PSS/E建構雙迴路海底電纜模型,並對裝設在海底電纜的測距電驛設定出保護區間,模擬在不同保護區域內,海纜發生三相接地故障時之電驛動作特性及相關系統響應,並檢討測距電驛保護是否能有效地提供良好保護效果。研究結果顯示出傳統姆歐型測距電驛無法提供完善的保護,主要原因在於電驛設定上忽略了長距離海纜對地電容效應。因此,本論文把此電容效應納入考慮,提出一種考慮海纜電容效應之修正型姆歐測距電驛保護設定之規劃,經由PSS/E模擬結果得知,本文所提出之修正型姆歐測距電驛保護區間,相較於傳統姆歐型測距電驛區間,在不同保護區發生三相接地故障時,可提供較完善且精確的保護效果。此研究成果可提供未來規劃長距離海底電纜系統保護之參考。
英文摘要 The thesis aims to study the distance relay protection setting for the long-distance submarine cable. A case study based on the double-curcuit submarine cable linking Taiwan grid and Penghu renewable energy system is demonstrated. The power system simulation package PSS/E is utilized for system modeling and simulation analysis. The protection zones for the distance relay installed on the submarine cable is defined, also, the relay operating characteristic and associated system responses as a three phase ground fault occusr on the submarine cable in different protection zones are simulated. The feasibility of distance relay is also investigated. The research results reveal that the typical mho type distance relay can not offer a complete protection effect for the sake of ignoring the line-to-ground capacitance effect of long-distance submarine cale. Accordingly, a modified mho type distance relay taking the effect of cable capacitance into account is proposed, and it can be verified from the PSS/E simulation that the planning can provide a more complete protection in comparison with the typical one as fault occurs on the cable. The research can provide a reference for the planning of protection for long-distance submarine cable in the future.
論文目次 Contents
Chinese Abstract……………………………………………………………I
Abstract……………………………………………………………………III
Acknowledgement…………………………………………………………V
Contents………………………………………………………………VI
List of Figures……………………………………………………………VIII
List of Tables……………………………………………………………XIII
Chapter 1. Introduction……………………………………………………1
1.1 Development of Wind Energy and Submarine Cable Project in Taiwan ………...…………………………………………………….1
1.2 Research Background and Motivations………...…………………12
1.3 Literature Reviews …………………………………….……....13
1.4 Construction of the Thesis………...………………………………15
Chapter 2. Introduction of Distance Protection………………………….16
2.1 Operating Principles of Distance Protection……….........................16
2.2 Setting of Distance Relay Zones……………….…………………..17
2.3 Impedance Diagram of Distance Relay…………………………….19
2.4 Distance Relay Types……………….......………………………….21
2.4.1 Relay Type Using Full Line Impedance……………………...21
2.4.2 Relay Type Using Line Reactance and Resistance………...…26
Chapter 3. Distance Protection Setting of Submarine Cable …….……..29
3.1 Comparators for Distance Protection and General Equation for Relay Characteristic………………………………………………………29
3.2 Conventional Distance Protection Setting…………...……………..33
3.3 Modified Distance Protection Setting with Considering Capacitance
Effect of Submarine Cable…...…………..……………………........36
Chapter 4. Simulation Analysis and Result Investigation……………….42
4.1 Descriptions of System and Wind Turbine modeling……………...42
4.2 Case 1………………………………………………………………45
4.3 Case 2………………………………………………………………54
Chapter 5. Conclusions and Future Study………………………………69
5.1 Conclusions……………………...…………………………………69
5.2 Future Study…………………………………………………..……70
References…………………………………………………………………71
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