Title :
A novel filter for harmonics and inter-harmonics analysis and suppression in AC electronic load
Author :
Zhaoxia, A. Huang ; Xudong, B. Zou ; Fen, C. Li ; Yunping, D. Zou ; Li, E. Tong
Author_Institution :
Coll. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
fDate :
May 30 2011-June 3 2011
Abstract :
AC electronic load (ACEL) based on current-controlled AC/DC/AC PWM converters is a simple kind of application for ac power source burn-in test with energy recycling capability. According to instantaneous power theory, the harmonics relationship in steady state between the ac side and the dc side of AC/DC converter and DC/AC converter in ACEL is investigated. When the frequency of the tested source is different from that of the grid, the harmonics and inter-modulation production in the dc bus is analyzed in detail, The accuracy of the harmonics relationship and theoretical expectation in ACEL are demonstrated by Matlab/Simulink simulations under different operation conditions. In addition, to decrease intrinsic-harmonics voltage of dc bus, a novel algorithm for output current reference is put forward. The proposed method is validated to be effective for suppressing the output current harmonics and inter-harmonics inject to the grid by simulations and experiments.
Keywords :
AC-DC power convertors; DC-AC power convertors; PWM power convertors; power grids; power system control; power system harmonics; AC electronic load; AC/DC converter; DC/AC converter; Matlab/Simulink simulations; Novel; ac power source burn-in test; current-controlled AC/DC/AC PWM converters; energy recycling; filter; grid; instantaneous power theory; inter-harmonics analysis; inter-modulation production; Frequency conversion; Harmonic analysis; Load modeling; Power harmonic filters; Production; Voltage control; AC electronic load (ACEL); harmonics relationship; instantaneous power theory; inter-modulation;
Conference_Titel :
Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-61284-958-4
Electronic_ISBN :
2150-6078
DOI :
10.1109/ICPE.2011.5944669