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A Simple Three-phase Three-wire Voltage Disturbance Compensator

Tumbelaka, Hanny Hosiana (2014) A Simple Three-phase Three-wire Voltage Disturbance Compensator. In: ICITACEE, 08-11-2014 - 09-11-2014, Semarang - Indonesia.

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        Abstract

        The two-leg four-switch VC-VSI with a direct load voltage controller has been developed as a three-phase multi- functional voltage disturbance compensator for a three-phase three-wire system. By controlling only two legs (two phases) of the inverter, the third leg automatically generates the correct third voltage. The VC-VSI is connected in series between the PCC and loads by three single-phase matching transformers. The transformer primary windings are connected in delta. The VC- VSI operates to directly control the load voltage rather than its output voltage using a simple PI controller. The VC-VSI is able to produce automatically a three-phase compensation voltage so that the load voltage is sinusoidal, symmetrical and constant at a nominal value. Computer simulation verifies that the VC-VSI is able to perform well as a voltage disturbance compensator, although there is still an insignificant deviation (around 1%). The THD of the load voltage reduces to 1.4%.

        Item Type: Conference or Workshop Item (Paper)
        Uncontrolled Keywords: Voltage sag/swell, Harmonic Voltage, Unbalanced Voltage, Three-phase Two-leg Inverter
        Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
        Divisions: Faculty of Industrial Technology > Electrical Engineering Department
        Depositing User: Admin
        Date Deposited: 17 Feb 2015 23:06
        Last Modified: 13 Sep 2019 05:51
        URI: http://repository.petra.ac.id/id/eprint/18061

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