Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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控制回路感應電壓分析與對策

來源:電工電氣發布時間:2020-07-15 15:15 瀏覽次數:301
控制回路感應電壓分析與對策
 
沈建位1,謝名勇2
(1 寧波職業技術學院,浙江 寧波 315800;2 浙江聯能電氣有限公司,浙江 衢州 324000)
 
    摘 要:針對某電廠輸煤電機控制回路在調試過程發生的問題,對故障情況進行了分析;為減少交流長距離控制回路感應電壓的影響,提出了改變繼電器參數、減少感應電壓和寄生電容的產生等處理對策,并結合現場情況,采用電感補償的方法,有效抑制了感應電壓對控制回路的影響。
    關鍵詞:控制回路;感應電壓;分布電容
    中圖分類號:TM645.2+1     文獻標識碼:B     文章編號:1007-3175(2020)07-0047-04
 
Analysis and Countermeasure of Induced Voltage in Control Circuit
 
SHEN Jian-wei1, XIE Ming-yong2
(1 Ningbo Polytechnic, Ningbo 315800, China; 2 Zhejiang Union Power Electric Co., Ltd, Quzhou 324000, China)
 
    Abstract: This paper analyzed the problems that occurred during the commissioning process of a coal-fired motor control loop of a power plant, the failure conditions. In order to reduce the influence of the induced voltage of the AC long-distance control loop, the countermeasures such as changing the relay parameters, reducing the induced voltage and the generation of parasitic capacitance are proposed; and combined with the on-site situation, the method of inductance compensation is used to effectively suppress the influence of the induced voltage on the control loop.
    Key words: control circuit; induced voltage; distributed capacitance
 
參考文獻
[1] 欒瑞瑛. 控制回路中電纜感應電壓分析及解決方案[J]. 通訊世界,2017(21):237-239.
[2] 林樹國. 控制電纜感應電壓引起機泵頻繁故障停機事故[J]. 電工技術,2016(1):65-66.
[3] 韓吉成,趙樹燾,李紅星,陳雨. 由分布電容引起的控制故障及其處理[J]. 電世界,2017,58(2):47-48.
[4] 農海. 長距離控制回路設計方案探討[J]. 廣西電業,2018(11):78-80.

 

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