Research of monitoring power quality applying CVT in the high-voltage power network

Author

Wang, Rui

Author_Institution

China Electr. Power Res. Inst., Meas. Res. Inst., Beijing, China

Volume

1

fYear

2011

fDate

8-9 Sept. 2011

Firstpage

432

Lastpage

435

Abstract

Simulation of the CVT´s harmonic measurement distortion, and the transformation ratio characteristics have been simulated by using the high-frequency equivalent circuit.The relationgship between the main stray capacitance´s change and the change of CVT´s pass band have been analyzed. At the same time, combining the engineering application, we propose to make use of the combination of experimental data with artificial neural network to correct the CVT´s transformation ratio. This method can be used to monitor harmonic chronically through the CVT. Testified by emulators, this method is feasible.

Keywords

equivalent circuits; neural nets; potential transformers; power engineering computing; power supply quality; CVT harmonic measurement distortion; CVT pass band change; CVT transformation ratio characteristic; artificial neural network; capacitor voltage transformer; harmonic monitoring; high-frequency equivalent circuit; high-voltage power network; power quality monitoring; stray capacitance change; Capacitors; Distortion measurement; Harmonic analysis; Harmonic distortion; Power system harmonics; Training; Voltage measurement; CVT; Power quality monitoring; artificial neural network; capacitor voltage transformer; distortion correction;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering and Automation Conference (PEAM), 2011 IEEE

Conference_Location

Wuhan

Print_ISBN

978-1-4244-9691-4

Type

conf

DOI

10.1109/PEAM.2011.6134888

Filename

6134888