A critical review of power quality standards and definitions applied to DC microgrids

As compared to AC microgrids, DC microgrids reduce the hardware complexity of converter-dominated power distribution in the presence of a high number of renewable energy sources, energy storage systems and energy efficient loads. Another frequently highlighted advantage is their resiliency and tolerance against AC grid disturbances resulting in improved overall power quality. However, with respect to power quality, the question arises whether existing international power quality standards and metrics remain applicable in DC microgrids or require adjustments. Therefore, this paper critically revises the definitions and power quality indicators specified in IEC 61000 and IEEE Std1159. The resulting review is essential to unambiguously define the responsibilities of the microgrid operators, customers and device manufacturers. Apart from that, causes and consequences of power quality issues in DC microgrids are discussed.

[1]  H. Wayne Beaty,et al.  Electrical Power Systems Quality , 1995 .

[2]  Diego Iannuzzi,et al.  Experimental evaluation of DC charging architecture for fully-electrified low-power two-wheeler ☆ , 2016 .

[3]  Johan Driesen,et al.  Analysis of three-level converters with voltage balancing capability in bipolar DC distribution networks , 2017, 2017 IEEE Second International Conference on DC Microgrids (ICDCM).

[4]  Seyed Hossein Hosseini,et al.  Distributed resources and DC distribution system combination for high power quality , 2010 .

[5]  Pericle Zanchetta,et al.  Stability evaluation of a DC micro-grid and future interconnection to an AC system , 2014 .

[6]  C. B. Cooper,et al.  IEEE Recommended Practice for Electric Power Distribution for Industrial Plants , 1987 .

[7]  Bin Wu,et al.  Effective Voltage Balance Control for Bipolar-DC-Bus-Fed EV Charging Station With Three-Level DC–DC Fast Charger , 2016, IEEE Transactions on Industrial Electronics.

[8]  Ju Lee,et al.  AC-microgrids versus DC-microgrids with distributed energy resources: A review , 2013 .

[9]  Jan Kraus,et al.  Extra low voltage DC grid LED lighting systems: photometric flicker analysis , 2015, 2015 IEEE International Workshop of Electronics, Control, Measurement, Signals and their Application to Mechatronics (ECMSM).

[10]  A. Shoulaie,et al.  Evaluating Voltage Notch Problems Arising from AC/DC Converter Operation , 2009, IEEE Transactions on Power Electronics.

[11]  Ashok Bindra,et al.  Wide-Bandgap Power Devices: Adoption Gathers Momentum , 2018, IEEE Power Electronics Magazine.

[12]  Pertti Jarventausta,et al.  Low-Voltage DC Distribution—Utilization Potential in a Large Distribution Network Company , 2015, IEEE Transactions on Power Delivery.

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

[14]  Tero Kaipia,et al.  Common-Mode and RF EMI in a Low-Voltage DC Distribution Network With a PWM Grid-Tie Rectifying Converter , 2017, IEEE Transactions on Smart Grid.

[15]  Bruce Nordman,et al.  A simulation-based efficiency comparison of AC and DC power distribution networks in commercial buildings , 2018 .

[16]  A. Sannino,et al.  Efficiency analysis of low- and medium- voltage DC distribution systems , 2004, IEEE Power Engineering Society General Meeting, 2004..

[17]  Gianfranco Chicco,et al.  Online Monitoring of the Power Transfer in a DC Test Grid , 2010, IEEE Transactions on Instrumentation and Measurement.

[18]  Math Bollen,et al.  Understanding Power Quality Problems , 1999 .

[19]  Ottorino Veneri,et al.  Experimental study of a DC charging station for full electric and plug in hybrid vehicles , 2015 .

[20]  Inês L. Azevedo,et al.  How much electricity can we save by using direct current circuits in homes? Understanding the potential for electricity savings and assessing feasibility of a transition towards DC powered buildings , 2015 .

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

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

[23]  O. Garcia,et al.  Automotive DC-DC bidirectional converter made with many interleaved buck stages , 2006, IEEE Transactions on Power Electronics.

[24]  S J Finney,et al.  Tradeoffs Between AC Power Quality and DC Bus Ripple for 3-Phase 3-Wire Inverter-Connected Devices Within Microgrids , 2011, IEEE Transactions on Power Electronics.

[25]  Hiroaki Kakigano,et al.  Low-Voltage Bipolar-Type DC Microgrid for Super High Quality Distribution , 2010, IEEE Transactions on Power Electronics.

[26]  Charles R. Sullivan,et al.  Outlook on Developments in Power Devices and Integration: Recent Investigations and Future Requirements , 2018, IEEE Power Electronics Magazine.

[27]  Ali Emadi,et al.  Constant power loads and negative impedance instability in automotive systems: definition, modeling, stability, and control of power electronic converters and motor drives , 2006, IEEE Transactions on Vehicular Technology.

[28]  Kamal Al-Haddad,et al.  Power Quality: Problems and Mitigation Techniques , 2014 .

[29]  Mohsen Hamzeh,et al.  Stability improvement of DC grids involving a large number of parallel solar power optimizers: An active damping approach , 2017 .

[30]  Yunjie Gu,et al.  Analysis and Control of Bipolar LVDC Grid With DC Symmetrical Component Method , 2016, IEEE Transactions on Power Systems.