Proceedings ArticleDOI
Analysis of fault current contribution from inverter based distributed generation
Nazila Rajaei,Mohamed H. Ahmed,Magdy M. A. Salama,Rajiv K. Varma +3 more
- pp 1-5
TLDR
In this article, the authors present two analytical frameworks to study the fault current contribution from inverter-based distributed generation (IB-DGs) in transient and steady state conditions.Abstract:
This paper presents two analytical frameworks to study the fault current contribution from inverter based distributed generation (IB-DGs) in transient and steady state conditions. The developed models can be used to analyze the fault response of IB-DGs in active distribution networks. The steady state analysis of fault current contribution from IB-DGs is calculated using the forward-backward sweep method, whereas the transient model for the IB-DGs is developed using the IB-DG differential equations. The results of the both models are validated by PSCAD simulations.read more
Citations
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Journal ArticleDOI
Reinforcing Fault Ride Through Capability of Grid Forming Voltage Source Converters Using an Enhanced Voltage Control Scheme
TL;DR: An adaptive virtual impedance-based voltage reference generation method is proposed, which enhances the VSC behavior under short circuits and increases the V SC fault ride through (FRT) capability.
Proceedings ArticleDOI
Fault current contribution of Renewable Distributed Generation: An overview and key issues
TL;DR: In this article, the authors present a comprehensive overview of the fault contribution of renewable distributed generation (DG) in terms of fault condition, penetration factor, fault location and system impedance.
Journal ArticleDOI
Simplified and Automated Fault-Current Calculation for Fault Protection System of Grid-Connected Low-Voltage AC Microgrids
TL;DR: Under the grid-connected microgrid operation mode, fault-tripping current-thresholds of adaptive overcurrent relays in a low-voltage AC microgrid are effectively self-adjusted according to various microgrid configurations and the operation status of DG units during thegrid-connected mode.
Journal ArticleDOI
Integrated Power Flow and Short Circuit Calculation Method for Distribution Network with Inverter Based Distributed Generation
Shan Yang,Xiangqian Tong +1 more
TL;DR: An integrated power flow and short circuit calculation method for distribution network with inverter based distributed generation is proposed and the calculated results are contrasted with those by the traditional method and the simulation method, whose results have verified the effectiveness of the integrated method suggested.
Proceedings ArticleDOI
A simplified and automated fault current estimation approach for grid-connected low-voltage AC microgrids
Duong Minh Bui,Shi-Lin Chen,Cheng-Wei Chen,Keng-Yu Lien,Yung-Ruei Chang,Yih-Der Lee,Jheng-Lun Jiang +6 more
TL;DR: In this paper, the authors proposed a fault analysis approach for grid-connected and small-sized low-voltage (LV) AC microgrid with the support of communication system.
References
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Grid current regulation of a three-phase voltage source inverter with an LCL input filter
TL;DR: In this paper, a robust control strategy for regulating the grid current entering a distribution network from a three-phase VSI system connected via a LCL filter is proposed, which integrates an outer loop grid current regulator with inner capacitor current regulation to stabilize the system.
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Development of adaptive protection scheme for distribution systems with high penetration of distributed generation
Sukumar Brahma,A.A. Girgis +1 more
TL;DR: In this paper, the effect of high DG penetration on protective device coordination is explored and an adaptive protection scheme is proposed as a solution to the problems identified, which is implemented on a simulated actual distribution feeder.
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Dispersed generation impact on distribution networks
TL;DR: In this article, the authors focus on some technical aspects, but not on the impact on the quality of supply and on tariff signals, and they focus on the technical aspects only.
Journal ArticleDOI
Optimal Protection Coordination for Microgrids With Grid-Connected and Islanded Capability
TL;DR: A microgrid protection scheme that relies on optimally sizing fault current limiters and optimally setting directional overcurrent relays is proposed, and is tested on two medium-voltage networks.
Journal ArticleDOI
IEEE 1547 series of standards: interconnection issues
T.S. Basso,R. DeBlasio +1 more
TL;DR: IEEE 1547 2003 standard for interconnecting distributed resources with electric power systems is the first in the 1547 series of planned interconnection standards to accommodate modern electrical and electronics systems and improved grid communications and operations.