电磁兼容标准是强制性的，因此满足特定的电磁兼容标准是功率因数校正技术研究的重要内容。低成本小功率的开关电源设计以满足电磁兼容标准为目标，电流谐波限制标准的要求不同对于电路的设计有很大的影响。由于IEC1000-3-2电磁兼容标准的变化，许多过去标准中划分为D类装置设备在新版本标准中划分为A类，通过分析计算，按照新标准重新计算的开关电源磁元件尺寸可大幅度地减小，进一步降低成本和提高性能价格比。本文以有源单级功率因数校正电路和无源LC功率因数校正电路为例，对新电磁兼容标准条件下功率因数校正电路进行设计分析。实验结果与理论预期十分接近。
Abstract
The design of low-cost power supplies is influenced by the regulations on the low-frequency harmonic content in the line.As IEC 1000-3-2 regulationshave justbeenmodified,the design procedure of low-costpowersupplies should also be modified. According to the new version of the above-mentioned regulations, many power supplies classified as Class D in the pastare classified asClassAnow.Thisfactallows a remarkable saving in the size of the reactive elements used to reduce the line harmonics if they have been properly designed. The minimum values of the magnetic elements used in two well-known PFC solutions(one is an S＊ PFC and the other is a passive filter)have been obtained in this paper for equipment classified in both the newClass A and the new Class D and for any power level between 75W and 600W.
关键词
电磁兼容标准 /
功率因数校正技术 /
性能价格比
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Key words
EMC regulations /
power factor correction /
cost-effective
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中图分类号：
TM46
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参考文献
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[8] Weiming Lin, J Sebastian,AFernandez, et al. Design of the basic rectifierwith LC filter to comply with the new version of the IEC 1000-3-2 current harmonic-limit specifications (Edition 2.0)[ A]. IEEE APEC' 02[ C]. Dallas, TX,USA, 2002. 1215-1220.
[9] Weiming Lin, J A Villarejo, J Sebastian, et al. Designing single-stage power factor correctors and LC passive filters to complywith the newversion of the IEC 1000 regulations[A].IEEE PESC'02[C]. Cairns, Australia, 2002. 2044-2049.
[10]钱照明,程肇基(Qian Zhaoming, Cheng Zhaoji).电力电子系统电磁兼容设计基础及干扰抑制技术(Design basis of Electromagnetic compatibility and Noise reduction techniques in power electronics systems)[M].杭州:浙江大学出版社(Hangzhou: Zhejiang Univ. Press), 2000.
[11]林维明, Javier Sebastián, A Fernandez.满足新版IEC1000-3-2标准规定(2000版)的单相LC滤波整流器的设计(Design of single-phase rectifier with LC filter complying with new edition of IEC1000-3-2 specifications)[J].电工电能新技术(Adv. Tech. of Elec. Eng.& Energy), 2002, 21(2): 1-4.
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脚注
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基金
教育部留学回国基金资助项目和福建省教育厅资助项目(JA03003)
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