Short-Circuit Current Calculation of a Power System with a Grid-Connected Inverter

Wei Cao; Cong Ngon Do; Jia Lin Cao; Jing Sun

doi:10.4028/www.scientific.net/AMR.1070-1072.823

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1070-1072Short-Circuit Current Calculation of a Power...

Short-Circuit Current Calculation of a Power System with a Grid-Connected Inverter

Abstract:

This paper analyzes the difference between conventional power supply and inverter power supply short circuit characteristics, pointing out that the short circuit current does not contain transient DC component. The inverter power supply can be regarded as AC current source with sudden change of current at moment of short-circuit to calculate the current periodic component. The method to calculate the short circuit current of power grid with both conventional rotating generator and inverter power supply is proposed and evaluated.

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Periodical:

Advanced Materials Research (Volumes 1070-1072)

Pages:

823-828

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1070-1072.823

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Online since:

December 2014

Authors:

Wei Cao, Cong Ngon Do*, Jia Lin Cao, Jing Sun

Keywords:

Current Source, Inverter, LVRT, Short Circuit, Voltage Source

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