Modeling for performance analysis of electromagnetic zero-sequence suppressor

• Autor(a) principal: De Oliveira, L. C O [UNESP]
• Data de Publicação: 2010
• Outros Autores: De Freitas, S. C L [UNESP], De Souza, J. B. [UNESP], Oliv, J. C.
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1109/ICHQP.2010.5625338; http://hdl.handle.net/11449/72240
• topic: Electromagnetic blocking; Electromagnetic filter; Harmonic suppressor; Transmittances; Electrical systems; Electromagnetic filters; Filtering systems; Frequency domain model; Harmonic components; Harmonic mitigation; Joint operations; Low impedance; Mathematical modeling; Performance analysis; Sequential distribution; Zero sequence components; Zero sequence current; Computer simulation; Electromagnetism; Frequency response; Harmonic analysis; Models; Magnetic materials

The purpose of this work is to present a frequency domain model to demonstrate the operation of an electromagnetic arrangement for controlling the injection of zero-sequence currents in the electrical system. Considering the diversity of sequential distribution of harmonic components of a current, the device proposed can be used in the process of mitigation of zero-sequence components. This device, here called electromagnetic suppressor, consists of a blocker and filter both electromagnetic, whose joint operation can provide paths of high and low impedances that can be conveniently adjusted in order to search for a desired performance. This study presents physical considerations, mathematical modeling and computer simulations that clearly demonstrate the viability of this application as a more viable alternative in the conception of filtering systems. The performance analysis is based on the frequency response of harmonic transmittances. The efficacy of this technique in direct actions to maximize the harmonic mitigation process is demonstrated. ©2010 IEEE.