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Current tracking control of voltage source PWM inverters using adaptive digital signal processing
Author(s) -
Fukuda Shoji,
Furukawa Yuya
Publication year - 2004
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.10266
Subject(s) - harmonics , pulse width modulation , digital signal processing , voltage source , control theory (sociology) , signal (programming language) , voltage , computer science , adaptive filter , tracking (education) , electronic engineering , current source , signal processing , engineering , control (management) , electrical engineering , psychology , pedagogy , artificial intelligence , programming language
An active filter (AF) is required to have a high control capability for tracking a time‐varying current reference. However, a steady‐state current error always exists if a conventional proportional and integral (PI) regulator is used because the current reference varies in time. This paper proposes the application of adaptive digital signal processing (ADSP) to the current control of voltage source PWM inverters. ADSP does not require any additional hardware. It can automatically minimize the mean‐square error. Since the available computer processing time is limited, ADSP cannot eliminate higher‐order harmonics but can eliminate lower‐order harmonics such as 5th to 17th. Experimental results demonstrate that ADSP is useful for improving the reference tracking performance of voltage source inverters. © 2004 Wiley Periodicals, Inc. Electr Eng Jpn, 146(4): 76–83, 2004; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10266