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Title: Photovoltaic power converter system with a controller configured to actively compensate load harmonics

Abstract

Photovoltaic power converter system including a controller configured to reduce load harmonics is provided. The system comprises a photovoltaic array and an inverter electrically coupled to the array to generate an output current for energizing a load connected to the inverter and to a mains grid supply voltage. The system further comprises a controller including a first circuit coupled to receive a load current to measure a harmonic current in the load current. The controller includes a second circuit to generate a fundamental reference drawn by the load. The controller further includes a third circuit for combining the measured harmonic current and the fundamental reference to generate a command output signal for generating the output current for energizing the load connected to the inverter. The photovoltaic system may be configured to compensate harmonic currents that may be drawn by the load.

Inventors:
 [1];  [2];  [2]
  1. Clifton Park, NY
  2. Burnt Hills, NY
Issue Date:
Research Org.:
General Electric Co., Boston, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
958724
Patent Number(s):
7465872
Application Number:
10/734,293
Assignee:
General Electric Company (Niskayuna, NY)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

de Rooij, Michael Andrew, Steigerwald, Robert Louis, and Delgado, Eladio Clemente. Photovoltaic power converter system with a controller configured to actively compensate load harmonics. United States: N. p., 2008. Web.
de Rooij, Michael Andrew, Steigerwald, Robert Louis, & Delgado, Eladio Clemente. Photovoltaic power converter system with a controller configured to actively compensate load harmonics. United States.
de Rooij, Michael Andrew, Steigerwald, Robert Louis, and Delgado, Eladio Clemente. Tue . "Photovoltaic power converter system with a controller configured to actively compensate load harmonics". United States. https://www.osti.gov/servlets/purl/958724.
@article{osti_958724,
title = {Photovoltaic power converter system with a controller configured to actively compensate load harmonics},
author = {de Rooij, Michael Andrew and Steigerwald, Robert Louis and Delgado, Eladio Clemente},
abstractNote = {Photovoltaic power converter system including a controller configured to reduce load harmonics is provided. The system comprises a photovoltaic array and an inverter electrically coupled to the array to generate an output current for energizing a load connected to the inverter and to a mains grid supply voltage. The system further comprises a controller including a first circuit coupled to receive a load current to measure a harmonic current in the load current. The controller includes a second circuit to generate a fundamental reference drawn by the load. The controller further includes a third circuit for combining the measured harmonic current and the fundamental reference to generate a command output signal for generating the output current for energizing the load connected to the inverter. The photovoltaic system may be configured to compensate harmonic currents that may be drawn by the load.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {12}
}

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