Fault Detection and Location of Photovoltaic Based DC Microgrid Using Differential Protection Strategy

A new differential current-based fast fault detection and location scheme for multiple Photovoltaic-based dc microgrid is proposed in this paper. A multiterminal dc (MTDC) distribution network is an effective solution for present grid scenario, where local distribution is incorporated primarily by power electronics based dc loads. PV systems with auxiliary power sources and local loads are used for MTDC connection, especially when ac utility grid is integrated with it by voltage source converters. Pole to pole and pole to ground faults are basically considered as dc distribution network hazards. As PV is connected through dc cable, high resistive dc arc fault is also studied in present literature. The proposed PV system is considered with arc-fault circuit interrupters as backup protection and is used to detect arcing series fault. Fast acting dc switching is considered for proposed differential current-based unit protection. A discrete frame differential current solution is considered to classify the fault type by modified cumulative sum average approach. By calculating unknown dc cable resistance accurately by non-iterative Moore-Penrose pseudo inverse technique, the fault distance is calculated. TMS320C6713 DSP based test-bench is used for verification of the scheme.

[1]  Majid Sanaye-Pasand,et al.  A Traveling-Wave-Based Methodology for Wide-Area Fault Location in Multiterminal DC Systems , 2014, IEEE Transactions on Power Delivery.

[2]  M. Sanaye-Pasand,et al.  A Traveling-Wave-Based Protection Technique Using Wavelet/PCA Analysis , 2010, IEEE Transactions on Power Delivery.

[3]  Jae-Do Park,et al.  DC Ring-Bus Microgrid Fault Protection and Identification of Fault Location , 2013, IEEE Transactions on Power Delivery.

[4]  M. Sumner,et al.  Fault Location in a Zonal DC Marine Power System Using Active Impedance Estimation , 2010, IEEE Transactions on Industry Applications.

[5]  Jay Johnson,et al.  Photovoltaic DC Arc Fault Detector testing at Sandia National Laboratories , 2011, 2011 37th IEEE Photovoltaic Specialists Conference.

[6]  Jukka Lassila,et al.  APPLICATION OF LOW VOLTAGE DC-DISTRIBUTION SYSTEM - A TECHNO- ECONOMICAL STUDY , 2007 .

[7]  F. Liu,et al.  DC Bus Voltage Control for a Distributed Power System , 2003 .

[8]  J.-M. Meyer,et al.  A DC hybrid circuit breaker with ultra-fast contact opening and integrated gate-commutated thyristors (IGCTs) , 2006, IEEE Transactions on Power Delivery.

[9]  S. Gonzalez,et al.  Crosstalk nuisance trip testing of photovoltaic DC arc-fault detectors , 2012, 2012 38th IEEE Photovoltaic Specialists Conference.

[10]  Alexis Kwasinski,et al.  A DC Arc Model for Series Faults in Low Voltage Microgrids , 2012, IEEE Transactions on Smart Grid.

[11]  S. Chakrabarti,et al.  A new protection scheme for DC microgrid using line current derivative , 2015, 2015 IEEE Power & Energy Society General Meeting.

[12]  Jay Johnson,et al.  Electrical simulations of series and parallel PV arc-faults , 2013, 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).

[13]  Gregory F. Reed,et al.  Fault location identification of a hybrid HVDC-VSC system containing cable and overhead line segments using transient data , 2016, 2016 IEEE/PES Transmission and Distribution Conference and Exposition (T&D).

[14]  A Borghetti,et al.  Integrated Use of Time-Frequency Wavelet Decompositions for Fault Location in Distribution Networks: Theory and Experimental Validation , 2010, IEEE Transactions on Power Delivery.

[15]  Lennart Söder,et al.  Distributed generation : a definition , 2001 .

[16]  S. McCalmont,et al.  Low Cost Arc Fault Detection and Protection for PV Systems: January 30, 2012 - September 30, 2013 , 2013 .

[17]  Rulph Chassaing,et al.  Digital Signal Processing and Applications with the C6713 and C6416 DSK , 2004 .

[18]  Stephen R. Marsland,et al.  Interpolation Models for Image Super-resolution , 2008, 4th IEEE International Symposium on Electronic Design, Test and Applications (delta 2008).

[19]  Ashok Kumar Pradhan,et al.  An Accurate Noniterative Fault-Location Technique for Low-Voltage DC Microgrid , 2016, IEEE Transactions on Power Delivery.

[20]  Majid Sanaye-Pasand,et al.  Fault location on multi-terminal DC systems using synchronized current measurements , 2014 .

[21]  A.K. Pradhan,et al.  A Cumulative Sum-Based Fault Detector for Power System Relaying Application , 2008, IEEE Transactions on Power Delivery.

[22]  Weijen Lee,et al.  Micro Grid Integration Opportunities and Challenges , 2007, 2007 IEEE Power Engineering Society General Meeting.

[23]  Y. Khersonsky,et al.  Power electronics and future marine electrical systems , 2004, Fifty-First Annual Conference 2004 Petroleum and Chemical Industry Technical Conference, 2004..

[24]  Boon-Teck Ooi,et al.  Locating and Isolating DC Faults in Multi-Terminal DC Systems , 2007, IEEE Transactions on Power Delivery.

[25]  Subhashish Bhattacharya,et al.  Operation of hybrid multi-terminal DC system under normal and DC fault operating conditions , 2015, 2015 IEEE Energy Conversion Congress and Exposition (ECCE).

[26]  Bill Rose,et al.  Microgrids , 2018, Smart Grids.

[27]  J. C. A. Barata,et al.  The Moore–Penrose Pseudoinverse: A Tutorial Review of the Theory , 2011, 1110.6882.

[28]  Jarmo Partanen,et al.  LVDC distribution system protection — Solutions, implementation and measurements , 2009, 2009 13th European Conference on Power Electronics and Applications.

[29]  Jae-Do Park,et al.  VSC-HVDC system protection: A review of current methods , 2011, 2011 IEEE/PES Power Systems Conference and Exposition.

[30]  A. Sannino,et al.  Protection of Low-Voltage DC Microgrids , 2009, IEEE Transactions on Power Delivery.

[31]  C. Marnay,et al.  Shape of the microgrid , 2000, 2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194).