Variable-speed wind power system with improved energy capture via multilevel conversion

Erickson, Robert W.; Al-Naseem, Osama A.; Fingersh, Lee Jay

Title: Variable-speed wind power system with improved energy capture via multilevel conversion

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Abstract

A system and method for efficiently capturing electrical energy from a variable-speed generator are disclosed. The system includes a matrix converter using full-bridge, multilevel switch cells, in which semiconductor devices are clamped to a known constant DC voltage of a capacitor. The multilevel matrix converter is capable of generating multilevel voltage wave waveform of arbitrary magnitude and frequencies. The matrix converter can be controlled by using space vector modulation.

Inventors:: Erickson, Robert W.; Al-Naseem, Osama A.; Fingersh, Lee Jay

Issue Date:: 2005-05-31

Research Org.:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1175372

Patent Number(s):: 6900998

Application Number:: 10/452,570

Assignee:: Midwest Research Institute (Kansas City, MO)

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

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

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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
H02M2007/4835 - {comprising a plurality of cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, the capacitors being selectively connected in series to determine the instantaneous output voltage}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E10/76 - Power conversion electric or electronic aspects

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
H02M5/297 - for conversion of frequency

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DOE Contract Number:: AC36-99GO10337

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 17 WIND ENERGY

Citation Formats


                    Erickson, Robert W., Al-Naseem, Osama A., and Fingersh, Lee Jay. Variable-speed wind power system with improved energy capture via multilevel conversion.  United States: N. p., 2005. 
        Web.

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                    Erickson, Robert W., Al-Naseem, Osama A., & Fingersh, Lee Jay. Variable-speed wind power system with improved energy capture via multilevel conversion.  United States.

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                    Erickson, Robert W., Al-Naseem, Osama A., and Fingersh, Lee Jay. Tue .  
        "Variable-speed wind power system with improved energy capture via multilevel conversion".  United States.  https://www.osti.gov/servlets/purl/1175372.

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@article{osti_1175372,

  title        = {Variable-speed wind power system with improved energy capture via multilevel conversion},

  author       = {Erickson, Robert W. and Al-Naseem, Osama A. and Fingersh, Lee Jay},

  abstractNote = {A system and method for efficiently capturing electrical energy from a variable-speed generator are disclosed. The system includes a matrix converter using full-bridge, multilevel switch cells, in which semiconductor devices are clamped to a known constant DC voltage of a capacitor. The multilevel matrix converter is capable of generating multilevel voltage wave waveform of arbitrary magnitude and frequencies. The matrix converter can be controlled by using space vector modulation.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2005},

  month        = {5}

}

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