Singe-Phase Grid-Connected Inverter Based on Voltage-Oriented Control in Photovoltaic Generation Systems

Abstract:

The paper proposes a new control of a transformerless singe-stage single-phase grid-connected inverter in photovoltaic generation systems. The control scheme is mainly based on voltage-oriented control (VOC) with help of second order Generalized Integrator (SOGI). A cascaded control structure with an outer dc link voltage control loop and an inner current control loop is used. The currents are controlled in a synchronous dq reference frame using a decoupled feedback control. The simulated results have proven an excellent performance and verified the validity of proposed system.

• Periodical: Advanced Materials Research (Volumes 765-767)
• Pages: 2498-2502
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.765-767.2498
• Online since: September 2013
• Authors: Yong Yang, Chun Qing Qi, Ji Suo, Feng Wen Cao
• Keywords: Second Order Generalized Integrator, Transformerless, Voltage-Oriented Control

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