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The present paper proposes the use of an advanced algorithm based on the instantaneous powers theory for harmonics current compensation. A fast and exact computation of harmonic references is more than crucial for any active filter control strategy, especially during the transient time and frequency domains. The proposed method contains mainly two stages, the first one is based on a self-tuning filter...
In the present work a technical review of several algorithms of harmonic currents compensation has been presented. The instantaneous reactive power theory (PQ theory), the Multi-Variable Filter FMV and Synchronous Reference Frame have been analyzed and compared under distorted and unbalanced conditions. The adopted strategy consists in first time in imposing a constant time response then the THD of...
This paper proposes a modified PQ theory for detecting the positive and negative components of the utility voltages under faulty grid conditions. Fast and exact detecting of those sequences is important to achieve the operating at unity power factor integration of distributed generations into the main grid and for other uses. A detailed description of the proposed method has been accomplished. A phase...
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