Analysis, modelling, and simulation of droop control with virtual impedance loop applied to parallel UPS systems

• Autor(a) principal: Lima, Francisco Kleber de Araújo
• Data de Publicação: 2013
• Outros Autores: Castelo Branco, Carlos Gustavo, Zapata, Josep Maria Guerrero, Camurça Neto, Luis Juarez Castelo Branco, Carvalho, Samuel da Silva, Bascopé, René Pastor Torrico
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/68722
• topic: Uninterruptible power systems; Droop control method; Nonlinear loads; Fonte de energia ininterrupta; Energia elétrica - Distribuição

This paper explores a control strategy for parallel uninterruptible power systems (UPS). The control technique used in that work was based on the droop control method. This method is usually applied to achieve good active and reactive power sharing when communication between the inverters is difficult due to its physical location. This paper has considered that the UPS systems there were no comunication between their controls. A detailed mathematical model about the explored system is shown in that work and simulation results are presented in order to prove the theory presented.