Resumo

SILVA, Helleson J. B. da  e  AFFONSO, Carolina M.. Transient analysis of mixed wind parks with different turbine types. Dyna rev.fac.nac.minas [online]. 2016, vol.83, n.198, pp.87-93. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v83n198.49766.

The variable-speed wind turbine is widely used in new wind parks and became the dominant type of wind turbine due to its technological advantages. However, in the case of already installed wind parks based on fixed speed wind turbines, the immediate migration from one technology to another becomes economically impracticable; the process of gradual modernization is more suitable. In this sense, this paper presents a detailed analysis of a mixed wind park containing both doubly fed and squirrel cage induction generators. It considers different rates of capacity for each technology and implementing the gradual replacement of some fixed speed units by variable speed units. The study addresses aspects of voltage stability, fault analysis, wind speed variation and critical fault clearance time. The network used to perform simulations is a real system from Brazil. The results show that DFIG improves the wind park behavior in many aspects and can be a cost-effective solution.

Palavras-chave : wind generation; squirrel cage induction generator; doubly fed induction generator; stability.

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