DocumentCode :
2929872
Title :
Mains Synchronisation for Thyristor Rectifiers
Author :
Das, Bhaba Priyo ; Watson, Neville R. ; Liu, Yonghe
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Canterbury, Christchurch, New Zealand
fYear :
2011
fDate :
25-28 March 2011
Firstpage :
1
Lastpage :
7
Abstract :
Grid connected power electronic converters must be synchronized to the mains voltage by using suitable converter control circuit and gate signals, in order to function correctly. Without proper synchronization, the operation of the converter is adversely affected. This paper proposes a method to synchronize power converters to the mains voltage without using a phase-lock-loop (PLL). This is achieved by estimating the magnitude and phase of the positive sequence component of the mains voltage in dq-reference frame. This method offers structural simplicity and immunity to voltage unbalance, mains harmonics, voltage sag etc.
Keywords :
phase estimation; power electronics; synchronisation; thyristor convertors; converter control circuit; dq-reference frame; gate signal; grid connected power electronic converter; magnitude estimation; mains synchronisation; mains voltage; phase estimation; positive sequence component; power converter synchronization; thyristor rectifier; voltage sag; voltage unbalance; Converters; Delay; Harmonic analysis; Power harmonic filters; Synchronization; Voltage fluctuations;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location :
Wuhan
ISSN :
2157-4839
Print_ISBN :
978-1-4244-6253-7
Type :
conf
DOI :
10.1109/APPEEC.2011.5748540
Filename :
5748540
Link To Document :
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