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Method and Apparatus for Eliminating Harmonic Components and Obtaining a Uniform Power Factor in Alternating Current-Direct Current and Direct Current-Alternating Current Converters
Method and Apparatus for Eliminating Harmonic Components and Obtaining a Uniform Power Factor in Alternating Current-Direct Current and Direct Current-Alternating Current Converters
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机译:在交流-直流和直流-交流转换器中消除谐波分量并获得均匀功率因数的方法和装置
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摘要
The present patent application relates to a method and equipment for eliminating harmonics based on two complementary techniques, namely the elimination of harmonics by selective harmonic elimination pulse-width modulation in conjunction with the multiple-wiring transformer. The association of these two resources is capable of reducing the harmonic distortion of currents to extremely low values, providing a truly unitary power factor. The technology is suitable for low and medium intensity alternating current—direct current and direct current—alternating current converters, which make interface with the electricity network and should have low harmonic distortion of the current because of the high power value involved, and also because of fragility of the electricity network (low power of short circuit at the coupling point).
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