Dynamic Stability of Three-Phase Grid-Connected Photovoltaic System Using Zero Dynamic Design Approach

作者：Mahmud M A^*; Pota H R; Hossain M J

来源：IEEE Journal of Photovoltaics, 2012, 2(4): 564-571.

DOI：10.1109/JPHOTOV.2012.2195551

• Dynamic stability
• grid-connected photovoltaic (PV) system
• maximum power point tracking (MPPT)
• zero dynamic controller

This paper presents a new approach to control the grid current and dc-link voltage for maximum power point tracking and improvement of the dynamic response of a three-phase grid-connected photovoltaic (PV) system. To control the grid current and dc-link voltage, the zero dynamic design approach of feedback linearization is used, which linearizes the system partially and enables controller design for reduced-order PV system. This paper also describes the zero dynamic stability of the three-phase grid-connected PV system, which is a key requirement for the implementation of such controllers. Simulation results on a large-scale grid-connected PV system show the effectiveness of the proposed control scheme in terms of delivering maximum power into the grid.

• 出版日期2012-10