Simulation and implementation of a harmonics suppression technique for a single-phase full-bridge converters

ABSTRACT

This paper presents a harmonic suppression technique for a single-phase full-bridge converter, and the mathematical principles underlying a modified PWM technique are discussed. To verify the effectiveness of the proposed technique, voltage and current sensor circuits in a single-phase full-bridge converter connected to a digital signal processor controller with an analog-to-digital converter were analyzed experimentally. The output voltage harmonics of the converter were examined, and the frequency spectra of the output voltage were analyzed. Furthermore, a digital control system with a TMS320F2808 digital signal microcontroller was realized. The experimental results verified the effectiveness of the proposed technique in suppressing low-frequency harmonic in a prototype of a converter.

CO EDITOR-IN-CHIEF:

• Kuo, Cheng-Chien

ASSOCIATE EDITOR:

• Kuo, Cheng-Chien

KEYWORDS:

• Single-phase full-bridge converter
• a modified PWM technique
• a TMS320F2808 digital signal microcontroller

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Acknowledgments

This work was supported by Taiwan’s Ministry of Science and Technology, for partially supporting this research under grant number MOST 109-2221-E-224-027 -MY3.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The research described in this paper was supported by the Ministry of Science and Technology, the Republic of China (Grant. No. 109-2221-E-150-041-MY3)