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Maximum Power Point Tracking and Reactive Power Control of Single Stage Grid Connected Photovoltaic System

Author(s): Y. Hoseynpoor | T. Pirzadeh Ashraf | Sh. Sajedi

Journal: Research Journal of Applied Sciences, Engineering and Technology
ISSN 2040-7459

Volume: 3;
Issue: 12;
Start page: 1432;
Date: 2011;
Original page

Keywords: Adaptive predictive current control | grid connected PV system | maximum power point tracking | reactive power control

Single-stage grid-connected Photovoltaic (PV) systems have advantages such as simple topology, high efficiency, etc. However, since all the control objectives such as the maximum power point tracking (with the utility voltage, and harmonics reduction for output current need to be considered simultaneously, the complexity of the control scheme is much increased. In this paper a new type of grid connected photovoltaic (PV) system with Maximum Power Point Tracking (MPPT) and reactive power simultaneous control system is presented. System has two controlling loops to obtain the maximum power from the PV array and also has reactive power control (RPC). In order to decrease the complexity, cost and the number of converters, a singlestage PV system is applied. Using RPC and MPPT controllers, reference current is calculated and the current with low THD (

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