D-Suite: a suite of partially rated modular power electronics to increase low voltage network capacity

Moon, Andrew, Deakin, Matthew and Ming, Wenlong ORCID: https://orcid.org/0000-0003-1780-7292 2025. D-Suite: a suite of partially rated modular power electronics to increase low voltage network capacity. Presented at: 28th International Conference and Exhibition on Electricity Distribution, Geneva, Switzerland, 16-19 June 2025. IET Conference Proceedings. , vol.2025 (14) Institution of Engineering and Technology (IET), pp. 1022-1026. 10.1049/icp.2025.1758

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Abstract

Low voltage distribution networks are typically impacted first when customers connect new low-carbon technologies, so the transition to net zero is increasingly resulting in a new pinch-point for distribution network operators in terms of low voltage network capacity. Although the number of power electronic devices (PEDs) in distribution networks has greatly increased, these are largely customer-side interfaces for low carbon technologies, with very low uptake from distribution network operators (DNOs). In this work, we introduce novel hardware and software approaches proposed in the D-Suite project that aim to support the mass rollout of DNO-owned PEDs. In particular, D-Suite advocates for a partially-rated modular PED design, common across three PED types, is proposed to increase economic efficiency; and, a proposed design tool targeting automation of the PED selection process and enabling planning. Simulation results, based on active phase current unbalance mitigation, show that PEDs can clear congestion and therefore increase headroom in unbalanced distribution networks.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Publisher:	Institution of Engineering and Technology (IET)
Last Modified:	27 Oct 2025 14:00
URI:	https://orca.cardiff.ac.uk/id/eprint/181921

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