Affiliation:
1. Hunan Province Higher Education Key Laboratory of Power System Safety Operation and Control, Changsha University of Science and Technology, Changsha, China
Abstract
Electrical engineering education textbooks usually restrict the linking between theory and practical work in power quality problems, such as voltage sag/swell. This paper presents a mathematic model of the power signal and digital signal processing tools, such as Kalman filter and wavelet transform, for analysis and detection of voltage sag/swell. Aiming at education and teaching in electrical power quality courses, M files for Kalman filter and wavelet transform in the Matlab program are introduced to record and track the waveform distortion with harmonics, voltage sag or a pulse, which allow students to simulate the effect of voltage sag and to see immediately the advantages and limitations of these two techniques for power quality problems.
Subject
Electrical and Electronic Engineering,Education
Cited by
12 articles.
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