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This paper describes an algorithm for phase angle estimation based on symmetrical sequence components. The algorithm uses the recursive weighted least-squares method to estimate the fundamental component of the positive and negative sequences. The phase angle is estimated at each iteration from the fundamental component of positive sequence. The proposed method eliminates low order harmonics and dc...
This paper proposes a modified weighted least square estimation (WLSE) technique used in combination with a phase locked loop for fast and accurate reference generation, a key part in the control of ac power converters. Simulation and real-time implementation (dSpace DS1103) tests emulating realistic (distorted) environments have been performed. These results prove the excellent behavior and robustness...
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