Definition and Measurement of Power Quality Indices in Low Voltage DC Networks

This paper presents an overview of power quality in low-voltage DC distribution networks. The paper analyses which of the power quality disturbances in AC distribution networks are relevant in DC networks, as well as other disturbances specific to DC systems, and studies the definition and measurement of different power quality indices. The paper reports some results obtained in different laboratory tests using different DC voltage shapes delivered by different DC power source types in the detection and characterization of power quality disturbances in low-voltage DC networks.

[1]  Mesut Baran,et al.  DC distribution for industrial systems: opportunities and challenges , 2002, IEEE Technical Conference Industrial and Commerical Power Systems.

[2]  Walmir Freitas,et al.  Mitigation of Fast Voltage Variations During Cloud Transients in Distribution Systems With PV Solar Farms , 2017, IEEE Transactions on Power Delivery.

[3]  A. Sannino,et al.  Feasibility of a DC network for commercial facilities , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[4]  Bernd Wunder,et al.  Energy efficient DC-grids for commercial buildings , 2014, 2014 IEEE 36th International Telecommunications Energy Conference (INTELEC).

[5]  Eberhard Waffenschmidt,et al.  Low Voltage DC Grids , 2013 .

[6]  Alexis Kwasinski,et al.  Power Quality in DC Power Distribution Systems and Microgrids , 2015 .

[7]  A. Mariscotti.  Methods for Ripple Index evaluation in DC Low Voltage Distribution Networks , 2007, 2007 IEEE Instrumentation & Measurement Technology Conference IMTC 2007.

[8]  Mihai Sanduleac,et al.  Analytical derivation of PQ indicators compatible with control strategies for DC microgrids , 2017, 2017 IEEE Manchester PowerTech.

[9]  P. Pinceti,et al.  Definition of Power Quality Indices for DC Low Voltage Distribution Networks , 2006, 2006 IEEE Instrumentation and Measurement Technology Conference Proceedings.