摘要：變頻器以其節(jié)能顯著，保護(hù)功能完善，調(diào)速性能好，使用維護(hù)方便優(yōu)點(diǎn)，占據(jù)交流電機(jī)調(diào)速的主導(dǎo)地位。在工業(yè)推廣應(yīng)用中，電磁干擾問(wèn)題日益突出。針對(duì)這一問(wèn)題，本文研究了磁兼容性(EMC)設(shè)計(jì)若干措施及典型的試驗(yàn)方法，提供了試驗(yàn)案例分析，具有很好的實(shí)用參考價(jià)值。
關(guān)鍵詞：變頻器，電磁干擾，電磁兼容性，典型試驗(yàn)
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Design of Inverter EMC and Research on Typical Experiment Method
WANG Jian-yuan,, (School of Automation and Information Engineering,Xi'an University of Technology? Xi’an? 710048 China)
? Cui?? Qing?????? ( Bosh Rexroth Electric Drives and Controls (Shenzhen)Co.,Ltd. Xi’an Branch? 710075 China)
?? Abstract: The inverter has occupied dominant status of AC Motor speed-adjusting ,because of the advantages of energy-saving significance, perfect protection, better speed-adjusting performance and convenient maintenance. With popularizing application in industry, the problems of EMI is increasing. Aiming at the problems, several EMC design measures and typical experimental methods are researched,? experimental analysis cases are provided,? this has better practical reference value.
Keywords: Inverter, EMI, EMC, Typical Experiment?
引言
??? 設(shè)備的電磁兼容性能是它能否“生存“的必要條件之一。電磁兼容設(shè)計(jì)的目的是使所設(shè)計(jì)的電子設(shè)備或系統(tǒng)在預(yù)期的電磁環(huán)境中實(shí)現(xiàn)電磁兼容。其要求是使電子設(shè)備或系統(tǒng)滿足EMC標(biāo)準(zhǔn)的規(guī)定并具有兩方面的能力：一是能在預(yù)期的電磁環(huán)境中正常工作，無(wú)性能降低或故障; 其次對(duì)該電磁環(huán)境不是一個(gè)污染源。交流變頻器以其調(diào)速性能好、節(jié)能顯著、保護(hù)功能完善、使用維護(hù)方便，在近年來(lái)迅速成為電機(jī)調(diào)速的主流。在工業(yè)推廣應(yīng)用中，電磁干擾問(wèn)題日益突出，在二類(lèi)環(huán)境或則更惡劣的工業(yè)環(huán)境中，電磁兼容性問(wèn)題尤其突出，甚至影響到系統(tǒng)的正常工作，阻礙了產(chǎn)品的推廣應(yīng)用。就變頻器設(shè)計(jì)中抗干擾設(shè)計(jì)實(shí)踐并結(jié)合目前的使用標(biāo)準(zhǔn)提出了探討研究，給出了變頻器電氣設(shè)計(jì)中部分有效的抗干擾方案，同時(shí)參照相關(guān)標(biāo)準(zhǔn)，設(shè)計(jì)了典型的試驗(yàn)方法，驗(yàn)證了所設(shè)計(jì)變頻器的EMC。