Version 1
: Received: 15 February 2017 / Approved: 16 February 2017 / Online: 16 February 2017 (09:17:26 CET)
How to cite:
Zhang, F.; Mu, L.; Guo, W. New Protection Scheme for Internal Fault of Multi-Microgrid. Preprints2017, 2017020060. https://doi.org/10.20944/preprints201702.0060.v1
Zhang, F.; Mu, L.; Guo, W. New Protection Scheme for Internal Fault of Multi-Microgrid. Preprints 2017, 2017020060. https://doi.org/10.20944/preprints201702.0060.v1
Zhang, F.; Mu, L.; Guo, W. New Protection Scheme for Internal Fault of Multi-Microgrid. Preprints2017, 2017020060. https://doi.org/10.20944/preprints201702.0060.v1
APA Style
Zhang, F., Mu, L., & Guo, W. (2017). New Protection Scheme for Internal Fault of Multi-Microgrid. Preprints. https://doi.org/10.20944/preprints201702.0060.v1
Chicago/Turabian Style
Zhang, F., Longhua Mu and Wenming Guo. 2017 "New Protection Scheme for Internal Fault of Multi-Microgrid" Preprints. https://doi.org/10.20944/preprints201702.0060.v1
Abstract
Multi-microgrid has many new characteristics, such as bi-directional power flows, flexible operation modes and variable fault currents with different control strategy of inverter interfaced distributed generations (IIDGs). All these featuring aspects pose challenges to multi-microgrid protection. In this paper, current and voltage characteristics of different feeders are analyzed when fault occurs in different positions of multi-microgrid. Based on the voltage and current distribution characteristics of the line parameters, a new protection scheme for the internal fault of multi-microgrid is proposed, which takes the change of phase difference and amplitude of measured bus admittance as the criterion. This scheme with high sensitivity and reliability, has a simple principle and is easy to be adjusted. PSCAD/EMTDC is used in simulation analysis, and simulation results have verified the correctness and effectiveness of the protection scheme.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
