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   https://doi.org/10.1109/APEC39645.2020.9124151  

   Mahmoudi, Mohsen; Ajami, Ali; Babaei, Ebrahim; Abdolmaleki, Nima; Wang, Caisheng (March 2020, 2020 IEEE Applied Power Electronics Conference and Exposition (APEC))

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   A new high-voltage-gain non-isolated dc-dc topology for applications in renewable energies is proposed. A coupled inductor with three windings is used to increase the proposed topology voltage gain. In addition to increasing the voltage gain, the proposed topology also has other prominent features including continuous input current and zero dc magnetizing inductance current, which reduces the losses and size of coupled inductor core. Furthermore, the continuous input current guarantees a low-volume input filter, which is essential for renewable energy applications. The leakage inductor stored energy is recycled via the diode and capacitor and transferred to the converter output for increasing the efficiency and reducing voltage stresses on the converter components. 

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2. A Novel Direct Duty-to-Current Control for DC Bias Mitigation in Dual Active Bridge Converters for Enhanced EV Applications

   https://doi.org/10.1109/COMPEL57542.2024.10613974  

   Gulzar, Moneeba; Raja, Ramish Majeed; Zane, Regan; Wang, Hongjie (June 2024, IEEE)

   This paper presents a novel direct duty-to-current control strategy to mitigate the dc bias and eliminate the need for a dc blocking capacitor in Dual Active Bridge (DAB) converters. The proposed control mechanism directly controls the duty cycle of each leg in the primary H-bridge to regulate the average (over one switching period) volt-seconds applied to the transformer primary winding to be zero without a dc blocking capacitor, under both steady-state and transient operations. This strategy is particularly relevant for electric vehicle (EV) applications, where variations in power demand and charging protocols can introduce dc bias, and the proposed control strategy work seamlessly with the output voltage control loop, during both steady-state operation and transients. The analysis, presented in detail, includes simulation results validating the effectiveness of the proposed control strategy under various steady-state and transient conditions, demonstrating its robustness and applicability in EV systems. 

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3. Instantaneous Current and Average Power Flow Characterization of a DC-DC-DC Triple Active Bridge Converter

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4. Fault Current Control and Protection in a Standalone DC Microgrid Using Adaptive Droop and Current Derivative

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   Augustine, Sijo; Reno, Matthew J.; Brahma, Sukumar M.; Lavrova, Olga (March 2020, IEEE Journal of Emerging and Selected Topics in Power Electronics)

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5. Correlation between current-voltage characteristics and DC field grading for dielectric liquid used in wet-mate DC connector

   https://doi.org/10.1109/TDEI.2018.007015  

   Tefferi, Mattewos; Ghassemi, Mona; Calebrese, Christopher; Chen, Qin; Cao, Yang (October 2018, IEEE Transactions on Dielectrics and Electrical Insulation)