Future Residential LVDC Power Distribution Architectures

Latest News

  • Dr Juan C. Vasquez is currently at the Department of Electrical and Electronic Engineering - Ritsumeikan University at Kakigano Laboratory, Kusatsu, Shiga, Japan as a Visiting Scholar. The host faculty is Prof. Hiroaki Kakigano who is involved with Distribution Voltage Control for DC Microgrids applied to residential applications.


Juan C Vasquez at Prof. Kakigano's Laboratory at Ritsumeikan University, Kusatsu Campus,Japan

  • Dr. Juan Vasquez will atttend the Industral Electronics Conference IECON which will be held at Yokohama, Japan from Nov 9 - 13, 2015.

  • We introduce the new DC living laboratory for the study of LVDC power architectures (click here). A step towards future smart DC homes.

Location of the proposed DC home living laboratory and PON109 Building

Juan C. Vasquez as a Visiting Scholar and PhD Student Fang Chen at CPES DC Nanogrid Laboratory.

  • The third virtual web meeting for development of standards for Hybrid AC/DC Power in Homes, conducted by the EMerge Alliance, will be held on Friday, February 27th, 2015 at 2PM EST. This meeting will continue the work leading to new application standards in the use of both AC and DC power in residential buildings. The topic is related to Residential Power Standards - Use Cases for The Hybrid House.
  • Dr. Juan Vasquez will atttend the Applied Power Electronics Conference & Exposition 2015 - APEC. The conference will be held at the Charlotte Convention Center, Charlotte, NC, March 15 - 19, 2015.
  • There is a new short link to this webpage for future citations and references. www.residentialvdc.et.aau.dk
  • Dr Juan Vasquez and Prof. Josep Guerrero have been invited to join the IEC System Evaluation Group SEG 4 work on LVDC Distribution and Safety for use in Developed and Developing Economies.The first meeting of SEG 4 is planned on Monday 19 and Tuesday 20 January 2015 in Milan, Italy.
  • Dr. Juan Vasquez and Prof. Josep Guerrero participate in a EES-UETP Microgrid course at INESC Porto - Portugal from June 2nd to June 4 (please see presentations at the bottom of this page).
  • Dr. Juan Vasquez and Prof. Josep Guerrero will join The Danish Smart Energy R&D Days in China (Feb 25-27) for Sino-Danish bilateral cooperation. This event will be also linked with the project Intelligent DC Microgrid Living Lab.
  • Dr. Juan Vasquez will be at IEEE SSD2014 next Feb. 11 as a Keynote speaker. The topic involves Research Challenges in Microgrid Technologies (please see presentation at the bottom of this page).
  • 14/04/2014. MicroGrid research group is now a Liaison Member of Emerge Alliance.


Introduction and Motivation

Recently, direct current (DC) distribution systems started to attract a lot of attention as they offer a natural interface to generation and consumption units such as renewable sources, energy storage systems and end-user electronic loads. However, a number of technical challenges related to lack of standardized equipment, stability and control must be overcome. The outcome of this project will be a research-oriented framework for assessment of stability and reliability of LVDC distribution systems.

Research Plan

The plan of this project will be structured into 3 main phases:

  • Design and stability analysis of DC distribution architectures
  • Coordination and control of power electronic units connected to the DC bus
  • Grid integration and interactivity

Visiting stays at proposed research institutions (INESC 1 month in 2014, Vtech 2 months in 2014, Ritsumeikan University 2 months in 2015) are planned to boost cooperation and research. Apart from the outcomes in terms of top-tier journal/conference publications, the project will provide control-oriented design tools for students, and material for the Industrial/Ph.D course on DC Microgrids.

Key Methods

Initially, different power electronics interfaces, topologies and control strategies should be carefully specified and designed, especially DC/DC converters that are used in order to form different DC buses in different voltage levels (380Vdc, 48Vdc, 24Vdc). Secondly, on the basis of topology and control strategy, small signal model of the system should be derived and aim at analysing the whole system’s stability. So in theory, a stability criterion can be acquired, which can be an instruction for designing such a LVDC distribution power architecture. Furthermore, simulation and real time HiL simulations in Dspace platforms will be established to verify the whole system’s feasibility.

Finally, a real experimental test-case of DC distribution power system for residential house will be established at the intelligent DC Microgrid living laboratory to verify the proposed system structure. The proposed loads in the system will use real household appliances in everyday life.

Publications derived from the latest research

SSD 2014 - Keynote presentation



Related link:Future Residential LVDC Power Distribution Architectures




Project Manager

Professor, Juan Carlos Vasquez
E-mail: juq@et.aau.dk

Grant and Period

Project Granted from The Danish Council for Independent Research | Technology and Production Sciences

See granted projects here.


Project period: 2014 - 2016

Host Institution: Aalborg University

Department: Energy Technology

Sagsnr. 1337-00122A