Suitable power transformers for solar farm applications

Khemmook, Panya; Suwan-ngam, Warachart; Khomfoi, Surin

doi:10.1109/ecticon.2015.7206984

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…A few major factors that the SST being proposed for the wind energy conversion system (WECS) are the reduction of weight and volume, voltage step-up and the extra functions that SST could offer such as reduction in fluctuation of voltage, voltage regulation, and compensation of reactive power which results in the improvement of PQ events [4], [83]- [85]. There are different types of WECSs in the market; however, only the WECS based on doubly fed induction generator (DFIG) is the most widely adopted because of its variable speed, constant frequency operation and small size with high MVA ratings [129]. Due to the PQ issues that were explained in [130], [131], and the stepping up of the voltage which requires a large conventional transformer that is unacceptable; accordingly, SST has a huge potential in wind as well related applications [65].…”

Section: ) Wind Energy Conversion Systemmentioning

confidence: 99%

State of the Art of Solid-State Transformers: Advanced Topologies, Implementation Issues, Recent Progress and Improvements

et al. 2020

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Solid-state transformer (SST) is an emerging technology integrating with a transformer power electronics converters and control circuitry. This paper comprehensively reviews the SST topologies suitable for different voltage levels and with varied stages, their control operation, and different trends in applications. The paper discusses various SST configurations with their design and characteristics to convert the input to output under unipolar and bipolar operation. A comparison between the topologies, control operation and applications are included. Different control models and schemes are explained. Potential benefits of SST in many applications in terms of controllability and the synergy of AC and DC systems are highlighted to appreciate the importance of SST technologies. This review highlights many factors including existing issues and challenges and provides recommendations for the improvement of future SST configuration and development.

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