A Distributed Power Control of Series-Connected Module-Integrated Inverters for PV Grid-Tied Applications

A series-parallel PV-storage independent microgrid and its decentralized control

“…Among the renewable sources, photovoltaic (PV) has become one of the major distributed generators (DGs) due to environmental concerns and continuous decrease in the price . The concept of PV‐storage microgrid (MG) is an effective way to integrate PV sources . When the support from the public utility is unavailable, storages are employed as a critical element to maintain the power balance due to the intermittent nature of PVs.…”

“…To address the above concerns, we introduce a new series‐parallel PV‐storage independent structure shown in Figure E as an expansion of Figure B and C, which holds the PV‐storage independent characteristics. The cascaded converter topology are emerging in middle‐ and high‐level voltage storage system application due to its merits in using low‐voltage semiconductor switches, producing low output voltage harmonic distortion and inherent modularity that can acquire simple voltage‐scaling properties without expensive and bulky step‐up transformers . It is applicable for large scale PV penetration.…”

“…The cascaded converter topology are emerging in middle-and high-level voltage storage system application due to its merits in using low-voltage semiconductor switches, producing low output voltage harmonic distortion and inherent modularity that can acquire simple voltage-scaling properties without expensive and bulky step-up transformers. 7,30,33,34 It is applicable for large scale PV penetration.…”

A Cost-Effective Decentralized Control for AC-Stacked Photovoltaic Inverters

“…Renewable energy generation is drawing more and more attention in the past decades [1][2][3][4][5]. AC-stacked photovoltaic (PV) inverter architecture is now considered a promising PV generation configuration [6][7][8][9][10][11][12]. It facilitates the integration of low voltage (LV) PV generators into medium/high voltage (MV/HV) grid due to its AC-stacked characteristic.…”

“…Recently, some low-bandwidth communication-based controls for AC-stacked PV inverters have been investigated [8][9][10][11][12]. In Reference [8], a distributed autonomous control is first proposed without a central controller.…”