1. Optimal Dynamic Harmonic Extraction and Suppression in Power Conditioning Applications.
- Author
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Ornelas-Tellez, Fernando, Rico-Melgoza, J. Jesus, Morfin-Magana, Rodrigo, and Ramos-Paz, Serafin
- Subjects
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ELECTRIC power filters , *FOURIER series , *HARMONIC analysis (Mathematics) , *TIME-varying systems , *INDUSTRIAL applications , *TRACKING control systems - Abstract
Power quality in electrical systems is a basic requirement that should be guaranteed. Nonetheless, the increase of power-electronics-based applications and other nonlinear loads have induced harmonic distortion degrading the power quality; therefore, effective methods to measure and suppress such distortion need to be developed. The main contributions of this article are the following: the development of a novel fast-converging optimal estimator to determine online the harmonic components of a time-varying signal, which can be used for analysis and control purposes; the usage of the estimator to generate reference signals for an optimal control system in order to suppress the harmonics components; and the experimental validation of the proposed methodology as a feasible solution for industrial applications. The proposal considers practical assumptions such as the signal to be analyzed is corrupted with noise and contains time-varying harmonics (i.e., no steady-state condition is assumed). As an application of the harmonic estimator, the following two experimental tests are carried out: first, the optimal determination of the harmonic components of the current waveform in a nonlinear load, and second, the usage of harmonics information to mitigate them through of an active power filter, which is controlled by using an optimal trajectory tracking control scheme. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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