A High-Frequency Magnetic Link-Based Converter Station for AC and DC Distribution Grid
Publication Name
2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023
Abstract
With the advancement of power electronics, multiport converter (MPC) has become a promising solution for developing an AC and DC power grid. To meet the goal of AC and DC distribution grids by establishing galvanic isolation between the grids, a new topology of MPC for medium voltage distribution networks is proposed in this article. The converter has three ports, two of which have full-bridge converters and one of which has a half-bridge converter. To step up and isolate the voltage, the proposed converter uses high-frequency magnetic link-based multiple active bridges (MAB) as a base stage. The turn ratio of numerous windings that are shared by a single magnetic link is matched by the step-up voltage ratio at which the MAB is operated, which is typically 1.05. The existence of this situation enables inherent soft-switching capabilities with minimum current impact on the switches. By using the inverter and converter stages with the MAB stage, the proposed converter produces both medium-voltage AC and medium-voltage DC while accepting low-voltage DC as an input. As a result of this functionality, it is feasible to act as an 'energy router' in power grids. To verify the efficacy of the proposed converter, a thorough simulation was run on the MATLAB/Simulink platform. Simulation outcomes reveal that the anticipated converter can efficiently supply the desired voltage and power of the distribution grids.
Open Access Status
This publication is not available as open access
Funding Number
DP200103405
Funding Sponsor
Australian Research Council