Selection of low voltage switching and protection devices in wind power generators

Abstract

Topic of this paper is the selection of low voltage circuit breakers and contactors in wind power applications. General requirements for components which need to be installed in the nacelle are first examined. Then, the three most common design structures of wind generators are briefly described. For each of them, the choice and sizing of switching devices are discussed, based on the number and kind of required operations.

Arranjo Flexível De Conversores Estáticos Para Sistemas De Conversão De Energia Eólica Conectados À Rede

“…A maioria dos conversores estáticos de potência presente nos sistemas de conversão de energia eólica operam com tensões menores que 1 kV [3]. Desta forma, as correntes envolvidas podem exceder a capacidade dos semicondutores de potência disponíveis.…”