Damped-SOGI Based Control Algorithm For Solar PV Power Generating System - 2017

PROJECT TITLE :

Damped-SOGI Based Control Algorithm For Solar PV Power Generating System - 2017

ABSTRACT:

This paper deals with 2-stage solar photovoltaic (PV) system with a damped-second-order generalized integrator (SOGI) algorithm. Proposed topology not only integrates the PV energy to the grid, additionally, it provides the load compensation, power factor correction, and harmonics elimination. Therefore, a double stage system is proposed where the primary stage could be a dc–dc boost converter, that performs the utmost power point tracking by regulating its duty ratio. For extracting maximum power from the PV array, an incremental conductance-primarily based approach is utilized. Moreover, in the next stage, a voltage source converter (VSC) is utilized. To manage the VSC, a damped-SOGI algorithm is used. By using a damped-SOGI-based management algorithm, elementary active parts of load currents are extracted for evaluating the reference grid currents. After comparing reference grid currents with sensed grid currents, switching pulses for the grid tied VSC are produced. A prototype of the proposed system is developed within the laboratory and check results are presented for verification of management of solar photovoltaic system.

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