Abstract
Direct current (DC) power grids are an interesting option for buildings to connect natural DC power sources such as photovoltaic power systems with DC loads like lighting, IT systems as well as speed-controlled electric motors of heating, ventilation and air-conditioning systems. The paper documents learnings, measurements and efficiency differences of a test bed installation with both a 230 V AC and a 380 V DC grid. Both subsystems supply LED luminaires with electricity from utility mains and AC respectively DC grid connected photovoltaic solar power systems. An efficiency advantage of 2 % has been measured with the 2 kW DC grid test bed. 5 % energy savings are described as potential.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.