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

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    高壓變頻器同步投切功能的研究

    來源:電工電氣發布時間:2016-04-06 08:06 瀏覽次數:11

    高壓變頻器同步投切功能的研究 

    徐衛青,楊志勇,馮驥 
    (國電南京自動化股份有限公司,江蘇 南京 211100) 
     

    摘 要: 介紹了高壓變頻同步投切系統主回路的基本原理及實現方法,給出了同步切換流程及其保護邏輯,切換時利用軟件鎖相環技術調整變頻器輸出電壓與電網電壓的相位、幅值、頻率一致,然后通過可編程控制器及自動開關完成變頻與工頻間的切換,試驗驗證了該方法的可行性,具有較高的現場應用價值。
    關鍵詞: 高壓變頻器;鎖相環;同步投切;連續性;變頻故障
    中圖分類號:TM464 文獻標識碼:A 文章編號:1007-3175(2014)01-0016-04


    Study of High-Voltage Inverter Synchronous Switching Function 

    XU Wei-qing, YANG Zhi-yong, FENG Ji 
    (GuoDian Nanjing Automation Co., Ltd, Nanjing 2111 00, China) 
     

    Abstract: Introduction was made to the basic principle and realizing method of main circuit of high-voltage inverter synchronous switching system. This paper gave the synchronous switching flow chart and its protective logic. On switching, by using software phase-locked loop technique, inverter output voltage was adjusted, as well as the grid voltage phase, amplitude, frequency in uniformity, then the switching between inverter and power was accomplished by the PLC and automatic switch. The test has verified the feasibility of the method, with higher site application value.
            Key words: high-voltage inverter; phase-locked loop; synchronous switching; continuous; inverter failure


    參考文獻
    [1] 楊海東,彭秀群,李超.高壓變頻器在440 t/h 循環流化床鍋爐一次風機上的應用[J]. 電氣應用,2009,28(12):70-72.
    [2] 楊海龍,張澄,余錦龍.高壓變頻器工變頻自動切換應用改造[J].內蒙古電力技術,2011,29(3):60-62.
    [3] 劉煥,藤錦芬,李銀玲.三相電壓不平衡下的軟件鎖相環設計[J].大眾科技,2011,18(5):135-136.

     

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