Project start: 1.10.2025.

The project addresses the application of modern high-performance microprocessors in multi-level power converters for use in electric drives. Through the team's previous research, various control structures for complex high-performance electric drives in a wide power range have been developed. Through the project currently in the implementation phase "A new generation of multi-level digital control systems for low and medium voltage power converters" - NPOO.C3.2.R3-I1.02.0032, a digital control system will be developed for low and medium voltage drives in two-level and three-level with neutral point clamped topology.

 

It is a continuation of the research but with an emphasis on multi-level converters that are topologically different compared to the converters that were considered until now. As a part of the project, the developed digital control system would be adapted in such a way that it corresponds to the control requirements of the multilevel converter. Likewise, one type of converter cell will be developed in a configuration with a diode bridge at the input and two branches in the converter part of the cell. A microcontroller will be installed inside each cell, which will be connected to the main digital control system through communication and synchronization. Due to the topology of the multilevel converter, it is necessary to develop a new modulation method that will consist of a customized circuit and a separate distributed algorithm through which the voltage in all three phases of the multilevel converter will be modulated. The newly developed method will use modern technological solutions of high-performance microprocessors and will rely on modern communication protocols. The developed method as well as the used microcontrollers will fully meet the requirements for cyber security and will be ready to implement functionally safe algorithms.