Jin, Zheming

PROJECT TITLE: Maritime DC Microgrid Based On-Board Power System

PhD period: 2015.11.15 – 2018.11.14.
Section: Power Electronic Systems
Research Programme: Microgrids
Supervisor: Josep M. Guerrero  
Co-Supervisors: Juan Carlos Vasquez & Prof. Suleiman Sharkh, University of Southampton, UK 
Contact Information

Collaborator: To be announced later.
Funding:  Department of Energy Technology, Aalborg University.


Along with the development of renewable energy sources, efficient generation methods and modern power electronic technologies, a trend of electrification is now challenging the conventional transportation industry. In recent years, the concept of large-scaled eco-friendly means of transport like all-electric-propulsion ship, non-emission ferry and more electric aircraft, etc. are not only emerging but also drawing more and more attention from the industrials. One of the most important common problem of these novel concepts is to establish stable efficient eco-friendly on-board power system and its coordination. For such an application, DC microgrid based on-board power system is a potential competitive solution but has not been promoted. Comparing with the existing AC solution of power system on board a vessel, DC solution can provide lower overall loses, better maneuverability, reduced number of electric devices, fewer problems with harmonic distortion, more flexible placement and it can allow each engine works in variable speed range independently, which may effectively reduce the fuel consumption. Besides that, DC solution can provides platform that can allow “plug and play” retrofitting possibilities, which can allow easily integration of future renewable energy sources. Fig. 1 shows a supposed on-board power system for a vessel.

The project focuses on the investigation and development of DC microgrid based on-board power system which is being deployed for a tightly combined decentralized generators and on-board electric loads for the next-generation highly electrified means of transportation. The project will explore and investigate the different aspects of on-board DC microgrid: system architecture, modeling, control, coordination and stabilization. The research will be focused on the following aspects:

  • System architecture.
  • Control and coordination strategy.
  • Efficient and economical operation of on-board energy storage.
  • System stability.


Publications in journals and conference papers may be found at VBN.