System and method for islanding detection and prevention in distributed generation
Abstract
Various examples are directed to systems and methods for detecting an islanding condition at an inverter configured to couple a distributed generation system to an electrical grid network. A controller may determine a command frequency and a command frequency variation. The controller may determine that the command frequency variation indicates a potential islanding condition and send to the inverter an instruction to disconnect the distributed generation system from the electrical grid network. When the distributed generation system is disconnected from the electrical grid network, the controller may determine whether the grid network is valid.
- Inventors:
- Issue Date:
- Research Org.:
- Sinewatts, Inc., Charlotte, NC (United States); The University of North Carolina at Charlotte, Charlotte, NC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1457413
- Patent Number(s):
- 9997920
- Application Number:
- 14/860,159
- Assignee:
- Sinewatts, Inc. (Charlotte, NC); The University of North Carolina at Charlotte (Charlotte, NC)
- Patent Classifications (CPCs):
-
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
H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER
- DOE Contract Number:
- EE0006459
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Sep 21
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Bhowmik, Shibashis, Mazhari, Iman, and Parkhideh, Babak. System and method for islanding detection and prevention in distributed generation. United States: N. p., 2018.
Web.
Bhowmik, Shibashis, Mazhari, Iman, & Parkhideh, Babak. System and method for islanding detection and prevention in distributed generation. United States.
Bhowmik, Shibashis, Mazhari, Iman, and Parkhideh, Babak. Tue .
"System and method for islanding detection and prevention in distributed generation". United States. https://www.osti.gov/servlets/purl/1457413.
@article{osti_1457413,
title = {System and method for islanding detection and prevention in distributed generation},
author = {Bhowmik, Shibashis and Mazhari, Iman and Parkhideh, Babak},
abstractNote = {Various examples are directed to systems and methods for detecting an islanding condition at an inverter configured to couple a distributed generation system to an electrical grid network. A controller may determine a command frequency and a command frequency variation. The controller may determine that the command frequency variation indicates a potential islanding condition and send to the inverter an instruction to disconnect the distributed generation system from the electrical grid network. When the distributed generation system is disconnected from the electrical grid network, the controller may determine whether the grid network is valid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {6}
}
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Works referenced in this record:
Locking frequency band exposure method for islanding detection and prevention in distributed generation
conference, September 2014
- Mazhari, Iman; Beghou, Lotfi; Enslin, Johan
- 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
Locking frequency band detection method for grid-tied PV inverter islanding protection
conference, September 2015
- Mazhari, Iman; Jafarian, Hamidreza; Parkhideh, Babak
- 2015 IEEE Energy Conversion Congress and Exposition (ECCE)