Optimized Power Processing Sharing Between the Converters of a Single-Phase Δ Uninterruptible Power Supply System
Konferenz: PCIM Europe 2023 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
09.05.2023-11.05.2023 in Nürnberg, Germany
doi:10.30420/566091313
Tagungsband: PCIM Europe 2023
Seiten: 7Sprache: EnglischTyp: PDF
Autoren:
de Souza, Vinicius; Da Silva, Sergio A. O.; Modesto, Rodrigo A. (Federal University of Technology – Campus Cornélio Procópio – UTFPR-CP, Brazil)
Campanhol, Leonardo B. G. (Federal University of Technology – Campus Apucarana – UTFPR-AP, Brazil)
Inhalt:
This paper proposes an optimized algorithm to share the energy processed by the single-phase δ-UPS (D-UPS) converters operating in backup mode (B-M). When the D-UPS operates in standby mode, the parallel converter operates oversized because its handled apparent power is lower than the load demanded nominal power. Unlike in B-M, the parallel converter must assume the overall power, while the series converter must be inhibited. In this paper, using an optimized algorithm/strategy, the series converter remains operating in the B-M and shares the energy consumed by the load with the parallel converter, allowing an adequate optimization of the parallel converter sizing. The proposed operation mode applied to the D-UPS increases the overall system efficiency. Simulation results show the effec-tiveness of the proposed optimized apparent power processing algorithm.