期刊
IEEE TRANSACTIONS ON POWER DELIVERY
卷 30, 期 1, 页码 428-436出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRD.2014.2348654
关键词
Distributed generation (DG); dynamic estimator; islanding detection methods (IDMs); nondetection zone (NDZ); quality factor and transient response
资金
- Masdar Institute of Science and Technology
- U.S. National Science Foundation [ECCS-1308928]
- U.S. Department of Transportation [DTRT13GUTC51]
- U.S. Department of Energy [DE-EE0006340]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1308928] Funding Source: National Science Foundation
In this paper, a new islanding detectionmethod (IDM) is proposed to dynamically estimate islanding occurrence. The proposed dynamic estimators estimate amplitudes and phase angles of the current injected by the grid at the point of common coupling with the distributed generation (DG) in addition to the DG's bus voltage. A distributed two-level algorithm is proposed to detect an islanding condition for single and multi-DG configurations. Analytical design and transient analysis are carried out for the islanding detection problem to determine the nondetection zone (NDZ) of the proposed islanding detection algorithm. A local low-frequency meshed communication network is sufficient to achieve distributed islanding detection capability for a general multi-DG network with negligible NDZ. It is shown through simulations that the proposed IDM can successfully distinguish an islanding condition from other disturbances that may occur in power system networks.
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