1. IDF-Correction-Based PWM Algorithm for a Three-Phase AC–DC Buck Converter.
- Author
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Milanovic, Miro and Šlibar, Primož
- Subjects
- *
CASCADE converters , *ALTERNATING currents , *DIRECT currents , *ALGORITHMS , *HARMONIC analysis (Mathematics) , *ELECTRIC switchgear , *MATHEMATICAL analysis , *SIMULATION methods & models - Abstract
This paper presents a pulsewidth modulation (PWM) algorithm for a three-phase ac–dc rectifier, where the third and fifth harmonics are indicated in the input phase voltages. A mathematical analysis, which includes this voltage harmonic's components, shows that the unity input displacement factor (IDF) can be reached by appropriate evaluation of duty-cycle functions. A PWM algorithm is proposed based on this developed theoretical achievement. This approach enables current sensorless unity IDF rectification. The PWM algorithm is investigated theoretically and verified by simulations and experiment. [ABSTRACT FROM PUBLISHER]
- Published
- 2011
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