Publications by Drazen Dujic | EPFL Graph Search

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To improve the efficiency of inductive power transfer (IPT) systems, it is beneficial to maximize the power transfer by enhancing the quality factor of coils and the coupling between them. Therefore, it is crucial to rely on accurate, flexible, and practic ...

Various high power applications require power converters with large voltage step ratios, easily achieved by inclusion of a single or multiple transformers, which provide galvanic isolation at the same time. This paper presents, in a systematic manner, the ...

The high-current delivered by a dedicated power supply is the condicio sine qua non to obtain the strong magnetic field produced by superconducting magnets. The end goal of such power supply is to control the current, very precisely, across this distinctiv ...

The current framework of high penetration of intermittent energy sources requires variable-speed pumped hydro storage power plants (PHSPs) to provide grid support functions, which are, in this case, achieved through two technologies: doubly-fed induction m ...

In this paper, the real-time simulation model of the modular multilevel converter was split into several independent parts through the use of the virtual capacitor concept. As a result, the number of state-space matrices the real-time solver needs to take ...

Modular multilevel converter current scalability challenge can be significantly alleviated by connecting its branches in parallel. In case a predefined submodule design is to be used with the aim of serving a certain span of applications, methods of achiev ...

The development and integration of power electronics equipment and converters for medium voltage ac and dc application has created different subsystem interactions that require proper investigation, understanding, description and estimation of global syste ...

Drazen Dujic

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Copper Pipes as Medium Frequency Transformer Windings

Protection Coordination in DC Shipboard Power Systems: Challenges, Current Status and New Technologies

Comparative Assessment of Inductance Modeling for PCB-based Circular Spiral Coils in Inductive Power Transfer Systems

On the integration of low frequency transformer into modular multilevel converter

Generalized Theory on Direct Arm Energy Control in Modular Multilevel Converters

Solid-State Technologies for Flexible and Efficient Marine DC Microgrids

Second Harmonic Ripple Voltage Suppression for Single-Phase ISOP Solid-State Transformer by Active Power Decoupling

Design Optimization of Two-Quadrant High-Current Low-Voltage Power Supply

High Power Electronics Innovation Perspectives for Pumped Storage Power Plants

Virtual Capacitor Concept for Effective Real-Time MMC Simulations

Stability Analysis of Multi-Port MVDC Distribution Networks for All-Electric Ships

Flexibility Enhancements in Pumped Hydro Storage Power Plants through Variable Speed Drives

On Facilitating the Modular Multilevel Converter Power Scalability Through Branch Paralleling

Protection Schemes in Low-Voltage DC Shipboard Power Systems

Low Voltage Modular Multilevel Converter Submodule for Medium Voltage Applications

Hybrid Modular Multilevel Converter for Variable DC Link Voltage Operation

Square-Wave Source with Adjustable dv/dt for Insulation Testing under Mixed-Frequency Stresses

Online Loss Calculation and Optimization of a M3C Driven Externally Excited SM

Parallel Operation of Direct Current Transformers

Single-Phase Measurement of the Output Impedance of the Four-Quadrant Cascaded H-Bridge Converter Cell Using Wideband Signals