天廣直流輸電系統直流電壓互感器缺陷分析及改進
羅蘇南，曹冬明，須雷，朱長銀，盧為
(南京南瑞繼保電氣有限公司，江蘇 南京 211102)
摘 要：針對天廣直流輸電系統出現的電壓異常波動現象，結合直流電壓互感器的設計對問題原因進行了分析，直流電壓互感器二次分壓的設計缺陷是引起系統電壓異常波動的主要原因，提出了相應的改進措施，實際運行表明改進措施有效地解決了天廣直流輸電系統直流電壓互感器的設計缺陷，解決了系統直流電壓異常波動問題，對直流電壓互感器的設計和選型有一定的參考價值。
關鍵詞：天廣直流輸電系統；直流電壓互感器；電壓波動
中圖分類號：TM451 文獻標識碼：A 文章編號：1007-3175(2014)03-0028-03
DC Voltage Transformer Defect Analysis and Improvement of Tian Guang DC Transmission System
LUO Su-nan, CAO Dong-ming, XU Lei, ZHU Chang-yin, LU Wei
（Nari-Relays Electric Co., Ltd, Nanjing 211102, China）
Abstract: In allusion to the voltage abnormal fluctuation phenomenon taking place in Tian Guang DC transmission system, this paper combined with DC voltage transformer design to analyze the problem causes. The design defect of DC voltage transformer second divider is the main cause of system voltage abnormal fluctuation. The corresponding improved measures were raised. The actual operation shows that the improved measures effectively remove DC voltage transformer design defect of Tian Guang DC transmission system, solving the system DC voltage abnormal fluctuation with certain reference value for DC voltage transformer design and model selection.
Key words: Tian Guang DC transmission system; DC voltage transformer; voltage fuctuation
參考文獻
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