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Title: System and method for optimizing fundamental frequency modulation for a cascaded multilevel inverter

Abstract

A system and a method for optimizing fundamental frequency modulation in a cascaded multilevel inverter (CMI) are provided. The CMI includes at least a first H-bridge module and a second H-bridge module connected in series with the first H-bridge module. The first H-bridge module is operated according to a first duty cycle and the second H-bridge module is operated according to a second duty cycle. The first duty cycle is greater than the second duty cycle. The first and second H-bridge modules are controlled utilizing fundamental frequency modulation. A portion of the first duty cycle is transferred to the second duty cycle thereby optimizing fundamental frequency modulation by at least improving power sharing between the first and second H-bridge modules and improving equalization of DC capacitor currents and voltage ripples while maintaining the same fundamental modulation to the output voltage waveform.

Inventors:
;
Issue Date:
Research Org.:
Board of Trustees of Michigan State University, East Lansing, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1464120
Patent Number(s):
10,033,263
Application Number:
15/188,218
Assignee:
Board of Trustees of Michigan State University (East Lansing, MI)
DOE Contract Number:  
AR0000222
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Jun 21
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 47 OTHER INSTRUMENTATION

Citation Formats

Peng, Fang Zheng, and Yang, Shuitao. System and method for optimizing fundamental frequency modulation for a cascaded multilevel inverter. United States: N. p., 2018. Web.
Peng, Fang Zheng, & Yang, Shuitao. System and method for optimizing fundamental frequency modulation for a cascaded multilevel inverter. United States.
Peng, Fang Zheng, and Yang, Shuitao. Tue . "System and method for optimizing fundamental frequency modulation for a cascaded multilevel inverter". United States. https://www.osti.gov/servlets/purl/1464120.
@article{osti_1464120,
title = {System and method for optimizing fundamental frequency modulation for a cascaded multilevel inverter},
author = {Peng, Fang Zheng and Yang, Shuitao},
abstractNote = {A system and a method for optimizing fundamental frequency modulation in a cascaded multilevel inverter (CMI) are provided. The CMI includes at least a first H-bridge module and a second H-bridge module connected in series with the first H-bridge module. The first H-bridge module is operated according to a first duty cycle and the second H-bridge module is operated according to a second duty cycle. The first duty cycle is greater than the second duty cycle. The first and second H-bridge modules are controlled utilizing fundamental frequency modulation. A portion of the first duty cycle is transferred to the second duty cycle thereby optimizing fundamental frequency modulation by at least improving power sharing between the first and second H-bridge modules and improving equalization of DC capacitor currents and voltage ripples while maintaining the same fundamental modulation to the output voltage waveform.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {7}
}

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Works referenced in this record:

Optimization of fundamental frequency modulation for cascaded multilevel inverter based transformer-less UPFC
conference, September 2014

  • Yang, Shuitao; Zhang, Shao; Wang, Xiaorui
  • 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
  • DOI: 10.1109/ECCE.2014.6954037