Transparent DC-Bus Voltage Control for Grid-Forming Converters
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A4 Artikkeli konferenssijulkaisussa
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en
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6
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2025 Energy Conversion Congress & Expo Europe (ECCE Europe), pp. 1-6
Abstract
A transparent DC-bus voltage control structure is proposed in this paper, to operate grid-forming converters while ensuring under- and over-voltage regulation of the DC bus. If another converter is already regulating the DC bus voltage, then the converter with the proposed method behaves as a grid-forming converter. The control system switches seamlessly to dual-voltage-forming mode to regulate both AC-side and DC-bus voltages if the DC-bus voltage goes beyond the lower or upper limits. This seamless operation is allowed by the disturbance observer structure used in both DC-bus voltage control and grid-forming control modes. The performance of the proposed method is studied experimentally using a $12.5-\text{kVA}$ setup.Description
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Mourouvin, R, Nurminen, T, Hinkkanen, M & Routimo, M 2025, Transparent DC-Bus Voltage Control for Grid-Forming Converters. in 2025 Energy Conversion Congress & Expo Europe (ECCE Europe)., 11238975, IEEE, pp. 1-6, Energy Conversion Congress & Expo Europe, Birmingham, United Kingdom, 31/08/2025. https://doi.org/10.1109/ECCE-Europe62795.2025.11238975