Modified Single-Stage Single-Phase to Multiphase Matrix Converter for Extended Low Output Power Frequency Operation

• Published in: IEEE transactions on power electronics Vol. 39; no. 8; pp. 9839 - 9852
• Main Authors: Waghmare, Manoj A., Aware, Mohan V., Umre, Bhimrao S., Iqbal, Atif
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.08.2024; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Capacitors; Electrons; Fluctuations; Frequency control; Frequency conversion; Frequency modulation; Inductors; Matrix converters; Multiphase; output frequency; Power factor; single-stage matrix converter (SSMC); Synthesis; unity power factor (UPF); Very Low Frequencies; voltage transfer ratio (VTR)
• ISSN: 0885-8993; 1941-0107
• DOI: 10.1109/TPEL.2024.3391794

The practical applicability of the single-phase <inline-formula><tex-math notation="LaTeX">( {1\emptyset } )</tex-math></inline-formula> power supplied conventional single-stage matrix converter (SSMC) to synthesize multiphase <inline-formula><tex-math notation="LaTeX">( {m\emptyset } )</tex-math></inline-formula> power is limited to very low frequency (3-5 Hz) output. In this article, a modified SSMC is proposed for <inline-formula><tex-math notation="LaTeX">1\emptyset \ to\ m\emptyset </tex-math></inline-formula> conversion which can extensively operate to derive the output frequency up to half of the rated supply frequency and ensures balanced operation with better power quality across the supply as well as load side. The proposed SSMC has three branches each constitute of an array of bidirectional switches supplied by a <inline-formula><tex-math notation="LaTeX">1\emptyset </tex-math></inline-formula> source through a filter circuit of one inductor and two capacitors. This configuration of the proposed SSMC makes it suitable to synthesize <inline-formula><tex-math notation="LaTeX">m\emptyset </tex-math></inline-formula> output from the available <inline-formula><tex-math notation="LaTeX">1\emptyset </tex-math></inline-formula> power supply from very low output frequency to maximum frequency equals to half of the rated supply frequency while maintaining supply side unity power factor and standard voltage transfer ratio. Experimental results are presented to validate the performance of the proposed SSMC for <inline-formula><tex-math notation="LaTeX">1\emptyset \ to\ m\emptyset </tex-math></inline-formula> conversion.