Unfolder-based single-stage AC-AC conversion system
Abstract
A power converter includes an unfolder connected to a three-phase source and has an output connection with three output terminals. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across converter output terminals. Switches of the converter selectively connect each of the three output terminals across the converter output terminals. A pulse-width modulation controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying at a rate related to a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.
- Inventors:
- Issue Date:
- Research Org.:
- Utah State Univ., Logan, UT (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2222197
- Patent Number(s):
- 11736031
- Application Number:
- 17/968,701
- Assignee:
- Utah State University (Logan, UT)
- DOE Contract Number:
- EE0008803
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 10/18/2022
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Teeneti, Chakridhar Reddy, Zane, Regan A., Wang, Hongjie, and Yelaverthi, Dorai Babu. Unfolder-based single-stage AC-AC conversion system. United States: N. p., 2023.
Web.
Teeneti, Chakridhar Reddy, Zane, Regan A., Wang, Hongjie, & Yelaverthi, Dorai Babu. Unfolder-based single-stage AC-AC conversion system. United States.
Teeneti, Chakridhar Reddy, Zane, Regan A., Wang, Hongjie, and Yelaverthi, Dorai Babu. Tue .
"Unfolder-based single-stage AC-AC conversion system". United States. https://www.osti.gov/servlets/purl/2222197.
@article{osti_2222197,
title = {Unfolder-based single-stage AC-AC conversion system},
author = {Teeneti, Chakridhar Reddy and Zane, Regan A. and Wang, Hongjie and Yelaverthi, Dorai Babu},
abstractNote = {A power converter includes an unfolder connected to a three-phase source and has an output connection with three output terminals. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across converter output terminals. Switches of the converter selectively connect each of the three output terminals across the converter output terminals. A pulse-width modulation controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying at a rate related to a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 22 00:00:00 EDT 2023},
month = {Tue Aug 22 00:00:00 EDT 2023}
}
Works referenced in this record:
Power converting apparatus suppressing switching noise by controlling switching operation
patent, November 2014
- Kazama, Shun; Tagome, Masaki; Kitabatake, Makoto
- US Patent Document 8,885,368