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This paper presents an active power filter based on a capacitor-clamped topology to compensate harmonics and reactive power generated from the nonlinear loads. The balanced and sinusoidal line currents are drawn from the AC source under the balanced and unbalanced loads. The capacitor-clamped topology is used in the voltage source inverter to reduce the voltage stress of power semiconductors. A DC-link...
A multi-function of series active power filter is presented to achieve current harmonic and load voltage regulation. Under the normal utility voltage condition, the series inverter is controlled to achieve current harmonic suppression so that the total harmonic distortion is reduced. If the abnormal utility voltage is detected at the load side, the series inverter is operated as a controlled voltage...
This paper presents a multi-function of single-phase voltage source inverter for current harmonic elimination and voltage regulation at the point of common coupling (PCC). The inverter is operated as an active power filter to eliminate harmonic and compensate reactive power under the normal utility voltage condition. In this condition the line current is almost unity power factor. A dc-link voltage...
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