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|Title:||Unified architecture of single-phase active power filter with battery interface for UPS operation|
|Author(s):||Sousa, Tiago J. C.|
Monteiro, Vítor Duarte Fernandes
Pinto, J. G.
Afonso, José A.
Afonso, João L.
|Keywords:||Active power filter|
Uninterruptible power supply
Bidirectional isolated dc-dc converter
|Publisher:||Newswood Limited Publisher|
|Journal:||Lecture Notes in Engineering and Computer Science|
|Abstract(s):||This paper presents a shunt active power filter with battery interface for uninterruptible power supply (UPS) operation. The proposed unified architecture is composed by a single-phase ac-dc converter from the power grid side and by a bidirectional isolated dc-dc converter to interface the batteries, allowing the operation in three distinct modes: (1) Shunt active power filter; (2) Off-line UPS to supply a set of priority loads during power outages; (3) Energy storage system to support the power grid. The proposed architecture and the developed control algorithms were validated with a reduced-scale laboratorial prototype in all the three different operation modes. The presented experimental results highlight the benefits of the proposed architecture.|
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