Abstract
To enhance the robustness and disturbance rejection ability of an on-line uninterruptible power supply (UPS) system, an internal model control (IMC)-based DC-link voltage regulation method is proposed in this chapter. Furthermore, the multi-mode operations of the on-line UPS system are investigated, and their corresponding control strategies are proposed. The proposed control strategies are capable of achieving the seamless transition in traditional normal mode, PV-aided normal mode, enhanced eco-mode, and burn-in test mode. Meanwhile, the uninterruptible load voltage is promised during the mode transition. The small-signal analysis is also conducted to investigate the stability of enhanced eco-mode and burn-in test mode. Finally, extensive experimental results are provided to validate the effectiveness of the proposed methods.
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04 May 2023
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Hou, X. (2023). Multi-mode Operation for On-line Uninterruptible Power Supply System. In: Lu, J., Wei, B., Hou, X., Sun, Y. (eds) Advanced Control and Protection of Modular Uninterruptible Power Supply Systems. Power Systems. Springer, Cham. https://doi.org/10.1007/978-3-031-22178-1_9
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DOI: https://doi.org/10.1007/978-3-031-22178-1_9
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