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Title: Multilevel cascade voltage source inverter with separate DC sources

Abstract

A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations. 15 figs.

Inventors:
;
Issue Date:
Research Org.:
Lockheed Martin Energy Syst Inc
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
512412
Patent Number(s):
5,642,275
Application Number:
PAN: 8-527,995
Assignee:
Lockheed Martin Energy System, Inc., Oak Ridge, TN (United States) PTO; SCA: 240100; PA: EDB-97:111204; SN: 97001827923
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 24 Jun 1997
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; INVERTERS; INTERCONNECTED POWER SYSTEMS; DESIGN; FUEL CELLS; PHOTOVOLTAIC POWER SUPPLIES; EQUIPMENT INTERFACES; SIGNAL CONDITIONING

Citation Formats

Peng, F.Z., and Lai, J.S. Multilevel cascade voltage source inverter with separate DC sources. United States: N. p., 1997. Web.
Peng, F.Z., & Lai, J.S. Multilevel cascade voltage source inverter with separate DC sources. United States.
Peng, F.Z., and Lai, J.S. Tue . "Multilevel cascade voltage source inverter with separate DC sources". United States.
@article{osti_512412,
title = {Multilevel cascade voltage source inverter with separate DC sources},
author = {Peng, F.Z. and Lai, J.S.},
abstractNote = {A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations. 15 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {6}
}