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http://dx.doi.org/10.5370/JEET.2017.12.4.1484

An Efficient and High-gain Inverter Based on The 3S Inverter Employs Model Predictive Control for PV Applications  

Abdel-Rahim, Omar (Dept. of Electrical and Electronic Engineering, Faculty of Engineering, Aswan University)
Funato, Hirohito (Dept. of Electrical and Electronic Engineering, Utsunomiya University)
Junnosuke, Haruna (Dept. of Electrical and Electronic Engineering, Utsunomiya University)
Publication Information
Journal of Electrical Engineering and Technology / v.12, no.4, 2017 , pp. 1484-1494 More about this Journal
Abstract
We present a two-stage inverter with high step-up conversion ratio engaging modified finite-set Model Predictive Control (MPC) for utility-integrated photovoltaic (PV) applications. The anticipated arrangement is fit for low power PV uses, the calculated efficiency at 150 W input power and 19 times boosting ratio was around 94%. The suggested high-gain dc-dc converter based on Cockcroft-Walton multiplier constitutes the first-stage of the offered structure, due to its high step-up ability. It can boost the input voltage up to 20 times. The 3S current-source inverter constitutes the second-stage. The 3S current-source inverter hires three semiconductor switches, in which one is functioning at high-frequency and the others are operating at fundamental-frequency. The high-switching pulses are varied in the procedure of unidirectional sine-wave to engender a current coordinated with the utility-voltage. The unidirectional current is shaped into alternating current by the synchronized push-pull configuration. The MPC process are intended to control the scheme and achieve the subsequent tasks, take out the Maximum Power (MP) from the PV, step-up the PV voltage, and introduces low current with low Total Harmonic Distortion (THD) and with unity power factor with the grid voltage.
Keywords
High-gain dc-dc converter; Cockcroft-Walton multiplier; Model predictive control; 3S current source inverter; Utility-integrated; Total Harmonic Distortion (THD);
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Times Cited By KSCI : 5  (Citation Analysis)
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