Self-balanced modulation and magnetic rebalancing method for parallel multilevel inverters
Abstract
A self-balanced modulation method and a closed-loop magnetic flux rebalancing control method for parallel multilevel inverters. The combination of the two methods provides for balancing of the magnetic flux of the inter-cell transformers (ICTs) of the parallel multilevel inverters without deteriorating the quality of the output voltage. In various embodiments a parallel multi-level inverter modulator is provide including a multi-channel comparator to generate a multiplexed digitized ideal waveform for a parallel multi-level inverter and a finite state machine (FSM) module coupled to the parallel multi-channel comparator, the FSM module to receive the multiplexed digitized ideal waveform and to generate a pulse width modulated gate-drive signal for each switching device of the parallel multi-level inverter. The system and method provides for optimization of the output voltage spectrum without influence the magnetic balancing.
- Inventors:
- Issue Date:
- Research Org.:
- The Florida State University Research Foundation, Inc., Tallahassee, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1410507
- Patent Number(s):
- 9831800
- Application Number:
- 15/297,828
- Assignee:
- The Florida State University Research Foundation, Inc. (Tallahassee, FL)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS
- DOE Contract Number:
- EE0006521
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2016 Oct 19
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 24 POWER TRANSMISSION AND DISTRIBUTION
Citation Formats
Li, Hui, and Shi, Yanjun. Self-balanced modulation and magnetic rebalancing method for parallel multilevel inverters. United States: N. p., 2017.
Web.
Li, Hui, & Shi, Yanjun. Self-balanced modulation and magnetic rebalancing method for parallel multilevel inverters. United States.
Li, Hui, and Shi, Yanjun. Tue .
"Self-balanced modulation and magnetic rebalancing method for parallel multilevel inverters". United States. https://www.osti.gov/servlets/purl/1410507.
@article{osti_1410507,
title = {Self-balanced modulation and magnetic rebalancing method for parallel multilevel inverters},
author = {Li, Hui and Shi, Yanjun},
abstractNote = {A self-balanced modulation method and a closed-loop magnetic flux rebalancing control method for parallel multilevel inverters. The combination of the two methods provides for balancing of the magnetic flux of the inter-cell transformers (ICTs) of the parallel multilevel inverters without deteriorating the quality of the output voltage. In various embodiments a parallel multi-level inverter modulator is provide including a multi-channel comparator to generate a multiplexed digitized ideal waveform for a parallel multi-level inverter and a finite state machine (FSM) module coupled to the parallel multi-channel comparator, the FSM module to receive the multiplexed digitized ideal waveform and to generate a pulse width modulated gate-drive signal for each switching device of the parallel multi-level inverter. The system and method provides for optimization of the output voltage spectrum without influence the magnetic balancing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {11}
}
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