DocumentCode :
2560783
Title :
Application of FastICA in on-line calibration of the current sensor´s phase difference
Author :
Gong Guoliang ; Lu Huaxiang
Author_Institution :
Neural Network Lab., Inst. of Semicond., Beijing, China
fYear :
2012
fDate :
29-31 May 2012
Firstpage :
330
Lastpage :
334
Abstract :
The performance of the current sensor in power equipment may become worse affected by the environment. In this paper, a phase difference measurement method based on FastICA is proposed to calibrate the phase difference of the current sensor on-line. However, not all source components are mutually independent in our application. Additionally, due to limitations of the algorithm, the phase errors of the separated results are different in different test runs. In order to get an exact result, we have proposed an evaluation index to choose an optimal result from different runs. The index is based on the relationship of mapping components to observed signals. Simulation results indicate that the method presented in this paper is effective and feasible.
Keywords :
calibration; independent component analysis; phase measurement; sensors; FastICA; current sensor phase difference measurement method; evaluation index; independent component analysis; mapping components; online calibration; phase errors; power equipment; Accuracy; Dielectric loss measurement; Dielectric losses; Indexes; Signal to noise ratio; Independent Component Analysis (ICA); current sensor; dielectric loss; evaluation index; phase difference;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Natural Computation (ICNC), 2012 Eighth International Conference on
Conference_Location :
Chongqing
ISSN :
2157-9555
Print_ISBN :
978-1-4577-2130-4
Type :
conf
DOI :
10.1109/ICNC.2012.6234760
Filename :
6234760
Link To Document :
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