[1]鄭 眉,李 威,常 彬,等.一種混合直流輸電故障檢測和處理策略[J].高壓電器,2019,55(07):181-186.[doi:10.13296/j.1001-1609.hva.2019.07.026]
 ZHENG Mei,LI Wei,CHANG Bin,et al.Method of Fault Detection and Processing Strategy for Hybrid HVDC Transmission[J].High Voltage Apparatus,2019,55(07):181-186.[doi:10.13296/j.1001-1609.hva.2019.07.026]
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一種混合直流輸電故障檢測和處理策略()
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《高壓電器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期數:
2019年07期
頁碼:
181-186
欄目:
研究與分析
出版日期:
2019-07-15

文章信息/Info

Title:
Method of Fault Detection and Processing Strategy for Hybrid HVDC Transmission
作者:
鄭 眉12 李 威3 常 彬3 閆鶴鳴4 徐 政2
(1. 國網浙江省電力公司科學研究院, 杭州 310014; 2. 浙江大學電氣工程學院, 杭州 310027; 3. 全球能源互聯網研究院有限公司, 北京 102209; 4. 直流電網技術與仿真北京市重點實驗室(全球能源互聯網研究院有限公司), 北京 102209)
Author(s):
ZHENG Mei12 LI Wei3 CHANG Bin3 YAN Heming4 XU Zheng2
(1. State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China; 2. College of Electric Engineering, Zhejiang University, Hangzhou 310027, China; 3. Global Energy Interconnection Research Institute Co., Ltd., Beijing 102209, China; 4. Beijing Key Laboratory of DC Grid Technology & Simulation (Global Energy Interconnection Research Institute Co., Ltd.), Beijing 102209, China)
關鍵詞:
混合直流電網 高壓直流斷路器 故障檢測 限流策略 電壓變化率
Keywords:
hybrid DC grid HVDC circuit breaker fault detection current limiting strategy ROCOV
DOI:
10.13296/j.1001-1609.hva.2019.07.026
摘要:
混合高壓直流輸電技術將傳統高壓直流輸電技術的經濟性與柔性高壓直流輸電技術的安全性和穩定性相結合,無疑將成為未來高壓直流輸電技術的研究熱點。 VSC站直流側故障的快速檢測和隔離技術一直是混合直流電網發展的主要技術瓶頸之一。高壓直流斷路器是解決這一問題的重要手段,也是當前研究的熱點。根據高壓直流斷路器的工作過程,分別對高壓直流斷路器的故障檢測和限流控制進行了分析,提出了基于ROCOV(電壓變化率)故障檢測方法以及分步投入避雷器的限流策略,減少了斷路器的動作時間和故障電流峰值。最后,在PSCAD/EMTDC上進行仿真分析,驗證直流斷路器保護方案的可靠性和快速性。
Abstract:
Hybrid HVDC transmission technology has become the research focus of HVDC technology in the future because it combines the economy of traditional HVDC technology and the security and stability of flexible HVDC technology. Fast detection and isolation of DC side faults in VSC stations is always one of the main technical bottlenecks in the development of hybrid DC power grid. High-voltage DC circuit breaker is an important device to solve this problem, and it is also a hot spot of current research. According to the working process of high voltage DC circuit breaker, this paper analyzes the fault detection and current limit control of high voltage DC circuit breaker respectively, and proposes the fault detection method based on ROCOV (rate of change of voltage) and a current limiting strategy of operation of arresters by sequence. The strategy can reduce the action time and fault current peak of the circuit breaker. Finally, the simulation analysis is carried out on PSCAD/EMTDC to verify the reliability and speed of the DC circuit breaker protection scheme.

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備注/Memo

備注/Memo:
鄭 眉(1990—),女,博士,研究方向為柔性直流輸電系統運行與仿真。收稿日期:2018-11-29; 修回日期:2019-01-20 基金項目:國家電網公司科技項目(5211011600R4)。 Project Supported by Science and Techology Project of SGCC(5211011600R4).
更新日期/Last Update: 2019-07-15
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