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Title: Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators
Authors: Zhou, Niancheng
Ye, Fan
Wang, Qianggang
Lou, Xiaoxuan
Zhang, Yuxiang
Keywords: Steady-state equivalent circuit
Distribution network
Short circuit calculation
Induction generator
Symmetrical components
Rotor slip
Issue Date: 2016
Source: Zhou, N., Ye, F., Wang, Q., Lou, X., & Zhang, Y. (2016). Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators. Energies, 9(4), 277-.
Series/Report no.: Energies
Abstract: This paper presents an improved current source equivalent model method to determine the short-circuit current of a distribution system with multiple fixed-speed and variable-speed induction generators (IGs). The correlation coefficients of flux components between stator and rotor under the unsymmetrical fault are analyzed using the positive and negative sequence steady-state equivalent circuits of an IG. The terminal voltage and current responses of fixed-speed and variable-speed IGs with and without the rotor slip changes under different penetration levels are compared to investigate the coupling relation between the short-circuit currents of IGs and the nodal voltages in the distribution network. Then the transient equivalent potential of an IG at the grid fault instant is derived. Sequence components of the short-circuit current in the network can be determined using the proposed technique. The correctness of the proposed method is verified using dynamic simulation.
ISSN: 1996-1073
DOI: 10.3390/en9040277
Schools: School of Electrical and Electronic Engineering 
Rights: © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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