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Title: Anti-islanding protection systems for synchronous machine based distributed generators

Abstract

A system for providing anti-islanding protection of a synchronous machine based distributed generator includes a frequency sensor configured to generate a generator frequency signal, a bandpass filter configured for filtering the generator frequency signal, a governor controller configured for using the filtered frequency signal to generate a power feedback signal, and a governor summation element configured for summing the filtered frequency signal, the power feedback signal, and a reference power to provide an electrical torque signal. Another system includes a voltage sensor configured to generate a generator terminal voltage signal, a feedback power calculator configured for generating a reactive feedback power signal, a bandpass filter configured for filtering the terminal voltage signal, and a PI controller summation element configured for summing the filtered terminal voltage signal, the reactive power feedback signal, and a reference reactive power to provide an error signal.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531526
Patent Number(s):
7202638
Application Number:
10/966,665
Assignee:
General Electric Company (Niskayuna, NY)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER
DOE Contract Number:  
AC36-99GO10337; NAD-1-30605-01
Resource Type:
Patent
Resource Relation:
Patent File Date: 2004-10-15
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Ye, Zhihong, Du, Pengwei, Nelson, John Keith, Miller, Nicholas Wright, and Walling, Reigh Allen. Anti-islanding protection systems for synchronous machine based distributed generators. United States: N. p., 2007. Web.
Ye, Zhihong, Du, Pengwei, Nelson, John Keith, Miller, Nicholas Wright, & Walling, Reigh Allen. Anti-islanding protection systems for synchronous machine based distributed generators. United States.
Ye, Zhihong, Du, Pengwei, Nelson, John Keith, Miller, Nicholas Wright, and Walling, Reigh Allen. Tue . "Anti-islanding protection systems for synchronous machine based distributed generators". United States. https://www.osti.gov/servlets/purl/1531526.
@article{osti_1531526,
title = {Anti-islanding protection systems for synchronous machine based distributed generators},
author = {Ye, Zhihong and Du, Pengwei and Nelson, John Keith and Miller, Nicholas Wright and Walling, Reigh Allen},
abstractNote = {A system for providing anti-islanding protection of a synchronous machine based distributed generator includes a frequency sensor configured to generate a generator frequency signal, a bandpass filter configured for filtering the generator frequency signal, a governor controller configured for using the filtered frequency signal to generate a power feedback signal, and a governor summation element configured for summing the filtered frequency signal, the power feedback signal, and a reference power to provide an electrical torque signal. Another system includes a voltage sensor configured to generate a generator terminal voltage signal, a feedback power calculator configured for generating a reactive feedback power signal, a bandpass filter configured for filtering the terminal voltage signal, and a PI controller summation element configured for summing the filtered terminal voltage signal, the reactive power feedback signal, and a reference reactive power to provide an error signal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {4}
}

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Works referenced in this record:

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