Power Quality in DC Power Distribution Systems and Microgrids

Abstract

This review paper discusses power quality considerations for direct current (DC) electric power distribution systems, particularly DC microgrids. First, four selected sample DC architectures are discussed to provide motivation for the consideration of power quality in DC systems. Second, a brief overview of power quality challenges in conventional alternating current (AC) distribution systems is given to establish the field of power quality. Finally, a survey of literature addressing power quality issues in DC systems is presented, and necessary power quality considerations in DC distribution system design and operation are discussed.

Keywords

• power quality
• DC distribution
• DC microgrid
• inrush current
• grounding
• DC architectures
• datacenter
• residential power systems
• telecommunication power management