Anti-islanding protection systems for synchronous machine based distributed generators

Ye, Zhihong; Du, Pengwei; Nelson, John Keith; Miller, Nicholas Wright; Walling, Reigh Allen

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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:: Ye, Zhihong; Du, Pengwei; Nelson, John Keith; Miller, Nicholas Wright; Walling, Reigh Allen

Issue Date:: 2007-04-10

Research Org.:: National Renewable Energy Laboratory (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

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H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER
H02J3/38 - Arrangements for parallely feeding a single network by two or more generators, converters or transformers
H02J3/388 - {Islanding, i.e. disconnection of local power supply from the network}

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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.

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                    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.

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                    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.

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@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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