NDLI: Prony analysis of electrical transient characteristics of AC system during HVDC commutation failure

Content Provider	IEEE Xplore Digital Library
Author	Rulian Zhang Chengyong Zhao
Copyright Year	2010
Description	Author affiliation: Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education, North China Electric Power University, Baoding, Hebei Province, China (Rulian Zhang; Chengyong Zhao)
Abstract	With the development of High Voltage Direct Current (HVDC) transmission, the impact of DC system on AC relay protection becomes more prominent. So it becomes more important to research electrical characteristics of AC system under DC faults. In PSCAD/EMTDC environment, the inverter commutation failure resulted from short circuit faults in AC line is simulated based on the electromagnetic transient model of Shandong grid containing Ningdong-Shandong DC transmission system. Prony algorithm is applied to analyze the electrical transient characteristics of AC system during commutation failure. The coincidence of fitted waveform and simulated waveform verified the validity of prony algorithm. Prony analysis results show that DC system injects a large number of inter-harmonic components into the inverter side AC system during commutation failure, and the distortion of the parallel line current is more serious than that of the fault line current, so the impact of DC system on the AC relay protection devices equipped on the parallel line is greater.
Starting Page	807
Ending Page	812
File Size	1235988
Page Count	6
File Format	PDF
ISBN	9781424473991
ISSN	19471270
e-ISBN	9781424473984
DOI	10.1109/IPECON.2010.5697077
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-27
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis inter-harmonic Prony analysis HVDC transmission Prony algorithm Power system harmonics Harmonic analysis Inverters commutation failure Transient analysis HVDC electrical transient characteristic
Content Type	Text
Resource Type	Article

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