Synthesis of a wide-bandwidth current sensor using a current transformer for active power filter applications

Author

Wong, Yuk-Kei ; Lee, Yim-Shu ; Cheng, David Ki-Wai

Author_Institution

Dept. of Electron. & Inf. Eng., Hong Kong Polytech., Kowloon, China

Volume

1

fYear

2000

fDate

2000

Firstpage

270

Abstract

A wide-bandwidth current sensor with extended low-frequency response (practically flat from 10 Hz to 3 MHz) is synthesized using a current transformer and wide-bandwidth operational amplifiers. It can replace an expensive Hall-effect current sensor used in an active power filter. Experimental results confirm the usefulness of the synthesized current sensor

Keywords

active filters; current transformers; electric current measurement; electric sensing devices; frequency response; instrument transformers; operational amplifiers; power harmonic filters; 10 kHz to 3 MHz; Hall-effect current sensor; active power filter applications; current transformer; extended low-frequency response; wide-bandwidth current sensor synthesis; wide-bandwidth operational amplifiers; Active filters; Bandwidth; Broadband amplifiers; Capacitance; Circuit synthesis; Current transformers; Frequency response; Inductance; Operational amplifiers; Power engineering and energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual

Conference_Location

Galway

ISSN

0275-9306

Print_ISBN

0-7803-5692-6

Type

conf

DOI

10.1109/PESC.2000.878855

Filename

878855