Integration of Solid-State Transformer for Enhanced Power Quality and Grid Reliability in PMSG-Based Wind Energy Conversion Systems

The utilization of wind energy through Permanent Magnet Synchronous Generators (PMSGs) is one of the promising technologies for sustainable electricity generation. This paper explores the integration of solid-state transformers (SSTs) in wind energy systems, utilizing PMSGs to address power quality concerns, mitigate voltage fluctuations, and enhance system stability. A novel SST circuit based on dual active bridge converters is proposed for stable voltage regulation under variable speed conditions. The proposed approach aims to optimize grid-side energy transfer, DC-bus voltage regulation, and unity power factor using advanced grid-side inverters. On the generator side, tuned converters with maximum power point tracking enhance power capture efficiency. A detailed mathematical analysis and MATLAB-based Simulink results are presented for the discussed control scheme. These findings contribute to advancing SST integration in wind energy, promising improved system performance, grid reliability, and efficient wind power utilization.