Stefan Milovanovic

Cette personne n’est plus à l’EPFL

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Publications associées (23)

On Power Scalability of Modular Multilevel Converters: Increasing Current Ratings Through Branch Paralleling

Drazen Dujic, Stefan Milovanovic

The modular multilevel converter (MMC) presented in Figure 1 found its place within highvoltage and medium-voltage (MV) applications owing to the possibility of effortlessly meeting the imposed voltage requirements by stacking the so-called submodules (SMs ...

2020

MMC-based conversion for MVDC applications

Stefan Milovanovic

In recent years, DC grids have gained momentum due to the advantages they display over their AC counterparts. For instance, high voltage DC grids have been established as the most prominent solution in the underwater power transmission or interconnection o ...

EPFL2020

Modulation Considerations for Modular Multilevel Converter Operating with Parallel Branches and Phase-Shifted Carriers

Drazen Dujic, Stefan Milovanovic

The branch paralleling represents one of the available options with regards to the modular multilevel converter power extension. In such a case, the main technical challenge resides in the control domain, whereas a new set of possibilities from the voltage ...

IEEE2020

High-Power DC–DC Converter Utilising Scott transformer Connection

Drazen Dujic, Stefan Milovanovic

To obtain a resilient and flexible DC grid, reliable means for interfacing its parts operating under different voltage levels must be ensured. This paper proposes bidirectional, isolated, DC–DC converter designed to connect either high/medium voltage bipol ...

2019

Unidirectional High-Power DC-DC Converter Utilizing Scott Transformer Connection

Drazen Dujic, Stefan Milovanovic

2019

Comprehensive Analysis and Design of a Quasi Two-Level Converter Leg

Drazen Dujic, Stefan Milovanovic

Quasi two-level operation of voltage source converters, intended to operate either within high/medium voltage DC networks or low output frequency applications, has caught the attention of both academia and industry. Sequential insertion of the so-called su ...

2019

Flexible Medium Voltage DC Source Utilizing Series Connected Modular Multilevel Converters

Drazen Dujic, Milan Utvic, Stefan Milovanovic

This paper presents the converter configuration acting as a medium voltage DC source. In order to obtain desired voltage across the DC terminals, two series connected modular multilevel converters are used. The use of modular multilevel converters results ...

IEEE2019

On Facilitating the Modular Multilevel Converter Power Scalability Through Branch Paralleling

Drazen Dujic, Stefan Milovanovic

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 ...

IEEE2019

Comparison of two Modular Multilevel Converter Internal Energy Balancing Methods

Drazen Dujic, Stefan Milovanovic, Miodrag Basic

Although challenging, control of the modular multilevel converter internal variables has been addressed using several different approaches so far. With the aim of maintaining the submodules’ energies within a predefined band, the socalled circulating curre ...

IEEE2019

Flexible Medium Voltage DC Source Utilizing Series Connected Modular Multilevel Converters

Drazen Dujic, Milan Utvic, Stefan Milovanovic

2019

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