Real time methods for positive, negative sequence and/or harmonics extraction. / Método de extração em tempo real de seqüência positiva, negativa e/ou harmônicos.

AUTOR(ES)

Rodrigo Cutri

DATA DE PUBLICAÇÃO

2007

RESUMO

Harmonics and unbalances cause several problems to equipments connected to AC mains. This work proposes a real time method to obtain the positive and negative sequence components and/or harmonics that requires no coordinate transformation neither signal filtering. Numerical simulation and experimental results are shown to validate the proposed method. As examples of application an Active Power Filter using a voltage source converter operating with PWM and an Negative Sequence Power Relay are presented.

ASSUNTO(S)

power quality power systems eletrônica de potência electrical engineering positive / negative and zero sequence qualidade de energia elétrica

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