MSc Defence of Akshay George

We kindly invite you to attend the MSc defence of Akshay George; the graduation is planned in Lipkenszaal LB 01.150, Monday 28th of October from 14.00-16.00hrs.

The title of his thesis is “AC-DC Priority Control of an Interlink Converter".  See abstract below.

Abstract

“The master’s thesis titled ‘AC-DC Priority Control of an Interlink Converter’ explores the development of an optimal control strategy for interlink converters (ILCs) in hybrid microgrids. The motivation arises from the rowing shift towards DC systems and the necessity to seamlessly integrate them with existing AC infrastructure. This research aims to enhance the intelligence of ILCs to prioritize power transfer between AC and DC subgrids based on priority modes, ensuring stable operation under abnormal conditions, particularly when both AC and DC subgrids are power-deficient simultaneously.

The study examines various control techniques, ultimately selecting the droop control method for its responsiveness to changes in both AC and DC subgrids. The newly developed AC-DC priority logic is integrated into the droop control, enabling the ILC to make intelligent decisions regarding power transfer direction without a central controller. The control strategy incorporates AC and DC priority modes, ensuring the stability of the respective subgrid.

Simulation results demonstrate the effectiveness of the proposed control algorithm in maintaining grid stability and supporting critical DC loads, such as electric vehicle charging stations and data centres, even under simultaneous verloading conditions. The findings underscore the importance of hybrid microgrids in the transition towards a more sustainable and efficient energy system”.

With warm regards, on behalf of Akshay and his supervisor Sebastián Rivera Iunnissi.