Suzhou Electric Appliance Research Institute
期刊號(hào): 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(fā)布時(shí)間:2016-04-06 08:06 瀏覽次數(shù):12

高壓變頻器同步投切功能的研究 

徐衛(wèi)青,楊志勇,馮驥 
(國(guó)電南京自動(dòng)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(tǒng)主回路的基本原理及實(shí)現(xiàn)方法,給出了同步切換流程及其保護(hù)邏輯,切換時(shí)利用軟件鎖相環(huán)技術(shù)調(diào)整變頻器輸出電壓與電網(wǎng)電壓的相位、幅值、頻率一致,然后通過可編程控制器及自動(dòng)開關(guān)完成變頻與工頻間的切換,試驗(yàn)驗(yàn)證了該方法的可行性,具有較高的現(xiàn)場(chǎng)應(yīng)用價(jià)值。
關(guān)鍵詞: 高壓變頻器;鎖相環(huán);同步投切;連續(xù)性;變頻故障
中圖分類號(hào):TM464 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):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(xiàn)
[1] 楊海東,彭秀群,李超.高壓變頻器在440 t/h 循環(huán)流化床鍋爐一次風(fēng)機(jī)上的應(yīng)用[J]. 電氣應(yīng)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(dòng)切換應(yīng)用改造[J].內(nèi)蒙古電力技術(shù),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(huán)設(shè)計(jì)[J].大眾科技,2011,18(5):135-136.