WSEAS Transactions on Systems and Control
Print ISSN: 1991-8763, E-ISSN: 2224-2856
Volume 10, 2015
Simulation and Implementation of Power Control Strategy Grid Connected Photovoltaic System
Authors: , , ,
Abstract: This paper introduces a direct power control strategy for a grid-connected voltage-source inverter. The proposed control strategy is implemented in the stationary reference frame without the necessity of the synchronous d-q transformation. The proposed control strategy based on the deadbeat current control technique and the relations between the grid currents and the instantaneous active and reactive power in the stationary reference frame. Then, the required inverter voltage in α-β reference frame is calculated directly based on instantaneous errors of active and reactive power. For its advantages, space vector modulation (SVM) is chosen to generate the VSI gating signals. Due the simplicity of the proposed control strategy, a fixed point microcontroller is used for control implementation. Extensive simulation and experimental results are provided which confirm the validity of the proposed control technique.
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Keywords: Photovoltaic, Renewable Energy, Inverters, Direct power control, deadbeat control, VSI, grid connected systems
Pages: 632-641
WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 10, 2015, Art. #69