37. саветовање CIGRE Србија (2025) СИГУРНОСТ, СТАБИЛНОСТ, ПОУЗДАНОСТ И RESILIENCE ЕЛЕКТРОЕНЕРГЕТСКОГ СИСТЕМА МУЛТИСЕКТОРСКО ПОВЕЗИВАЊЕ У ЕНЕРГЕТИЦИ И ПРИВРЕДИ – B4-08
АУТОР(И) / AUTHOR(S): Anđela Tomašević, Aleksandar Milić
DOI: 10.46793/CIGRE37.B4.08
САЖЕТАК / ABSTRACT:
The growing prevalence of high-performance computer systems presents new challenges in power supply stability in the presence of disturbances caused by rapid changes in energy consumption. The seamless operation of such systems requires the suppression of voltage delivery disturbances in the microsecond range, which demands a high bandwidth for closed-loop control. This paper proposes an algorithm for fast regulation of the output voltage in the presence of current disturbances which ensures stable and robust operation of the end consumer, using an interleaved buck converter as an example. The proposed algorithm is based on two voltage control loops and relies on pole-placement techniques to achieve the desired performance. It is shown that precise modelling of the converter’s oscillatory dynamics enables shaping the response according to the specifications expected in this application domain. The effectiveness of the proposed algorithm in suppressing 500 A/ms dynamic disturbances on the output voltage in the range from 20 V to 150 V has been verified through hardware-in-the-loop (HIL) simulation and experimentally. The proposed algorithm enables the local suppression of disturbances and prevents their further spread into the power system, while the implementation on a digital signal processor (DSP) provides high-power density and efficiency with reduction of production cost compared to alternative solutions.
КЉУЧНЕ РЕЧИ / KEYWORDS:
digital control, fast transient, pole placement, dc-dc converter
ПРОЈЕКАТ / ACKNOWLEDGEMENT:
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