A Current Limiting Strategy to Improve Fault Ride-Through of Inverter Interfaced Autonomous Microgrids

With high penetration of distributed energy resources, fault management strategy is of great importance for the distribution network operation. The objective of this paper is to propose a current and voltage limiting strategy to enhance fault ride-through (FRT) capability of inverter-based islanded...

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Bibliographic Details
Published in:IEEE transactions on smart grid Vol. 8; no. 5; pp. 2138 - 2148
Main Authors: Sadeghkhani, Iman, Hamedani Golshan, Mohamad Esmail, Guerrero, Josep M., Mehrizi-Sani, Ali
Format: Journal Article
Language:English
Published: Piscataway IEEE 01.09.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Constraining
Control systems
Current control
Density estimation robust algorithm
Distribution management
Electric potential
Electric power grids
Energy distribution
Energy management
Energy sources
fault current limiters
fault ride-through (FRT)
Faults
Inductors
Inverters
Limiting
Overcurrent
reference frame
Resource management
Strategy
Topology
transient response
Voltage control
voltage limit
voltage-sourced inverter (VSI)
Wire
ISSN:1949-3053, 1949-3061
Online Access:Get full text
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Summary:With high penetration of distributed energy resources, fault management strategy is of great importance for the distribution network operation. The objective of this paper is to propose a current and voltage limiting strategy to enhance fault ride-through (FRT) capability of inverter-based islanded microgrids (MGs) in which the effects of inverter control system and inverter topology (four/three-wire) are considered. A three-phase voltage-sourced inverter with multi-loop control system implemented in synchronous, stationary, and natural reference frames is employed in this paper for both four- and three-wire configurations. The proposed strategy provides high voltage and current quality during overcurrent conditions, which is necessary for sensitive loads. Several time-domain simulation studies are conducted to investigate the FRT capability of the proposed strategy against both asymmetrical and symmetrical faults. Moreover, the proposed method is tested on the CIGRE benchmark MG to demonstrate the effectiveness of the proposed limiting strategy.
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ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2016.2517201