Extreme Operating Gusts Detection and their Effects on Back-to-Back Converter Reliability in Small Wind Turbines | Zendy

Efrain Duenas-Reyes | Zendy; O. A. Jaramillo | Zendy; E. Campos Mercado | Zendy; Emmanuel Hernandez-Mayoral | Zendy; Reynaldo Iracheta-Cortez | Zendy

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Extreme Operating Gusts Detection and their Effects on Back-to-Back Converter Reliability in Small Wind Turbines

Author(s) -

Efrain Duenas-Reyes,

O. A. Jaramillo,

E. Campos Mercado,

Emmanuel Hernandez-Mayoral,

Reynaldo Iracheta-Cortez

Publication year - 2025

Publication title -

ieee access

Language(s) - English

Resource type - Magazines

SCImago Journal Rank - 0.587

H-Index - 127

eISSN - 2169-3536

DOI - 10.1109/access.2025.3621584

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

The Rotor Side Converter (RSC) is recognized as a crucial component of the back-to-back power converter utilized in wind turbines, and high failure rates and annual downtime are significantly attributed to it. The challenges encountered are primarily linked to the thermal cycles experienced by power switches due to low-frequency overcurrents. Consequently, the reliability of the RSC is deemed essential for enhancement. This research aims to determine whether low-frequency overcurrents are prompted in the RSC by Extreme Operating Gusts (EOGs) and whether electrical flicker on the direct current bus of the power converter is induced—both of which have been connected to device failures and reduced operational lifespan in existing literature. To address this issue, a novel time-domain EOGs detector is proposed to identify the most intense EOG recorded in La Ventosa, Oaxaca, Mexico, in 2018. Based on this EOG event, two types of small wind turbines were evaluated: one utilizing a grid-connected Doubly Fed Induction Generator (DFIG) and the other employing a grid-isolated Permanent Magnet Synchronous Generator (PMSG). Both systems exhibited significant low-frequency overcurrents and electrical flicker during EOG condition. Furthermore, a full factorial 42 experimental design was implemented on the grid-isolated PMSG-based wind turbine to investigate the influence of EOG amplitude and intensity on the magnitude of RSC overcurrents and the characteristics of flicker-induced voltage oscillations on the direct current bus. The findings reveal that EOG amplitude is the dominant factor driving both overcurrents in the RSC and significant electrical flickers on the direct current bus, ultimately undermining the reliability of the back-to-back power converter.

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