Blooming HVRT enhancement techniques for PMSG-based wind turbines: A Review

For more than two millennia, humans have been harnessing the power of the wind. Today, wind energy caters to global energy needs as one of the major clean energy sources. Of the available wind generators, permanent magnet synchronous generators (PMSGs) have become prevalent in the industry due to their high efficiency and reliability. The increased penetration of wind power in the grid has made the study of the dynamic behavior of wind turbine generators (WTGs) under different grid conditions important. Several countries have introduced new grid codes, especially regarding low voltage ride-through (LVRT) and high-voltage ride-through (HVRT) requirements. The latter is gaining more attention from researchers recently. This paper presents the state of the art of HVRT capabilities of PMSG-based wind turbines. A comparison of different HVRT techniques is also performed based on various parameters. Further, the relevance of HVRT in the present scenario is also discussed.