Abstract
One of the main problems in low voltage (LV) networks is related to sensitive load voltage stabilization close to the nominal value. This paper presents the analysis, design, and implementation of a back-to-back converter based active voltage conditioner for low voltage (LV) distribution grids to compensate short-term voltage sags or swells. The proposed voltage regulator contains an indirect AC/DC/AC converter and uses linear control associated with the pulse width modulation technique. To verify the practical usefulness of the proposed novel concept, a 5kVA three-phase prototype active voltage conditioner has been constructed, and the control system has been implemented based on 32-bit floating-point digital signal processor (DSP) TMS320F28377s. The effectiveness of the proposed method is demonstrated through the comprehensive experimental results.
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