Fault detection during power swing in thyristor-controlled series capacitor-compensated transmission lines

Abstract Fault detection during power swing in compensated transmission lines by Thyristor Controlled Series Capacitors (TCSCs) is a challenging problem and conventional detection methods might not be accurate. In this paper, a high speed fault detection approach based on Mathematical Morphology is proposed. The proposed method uses voltage and current signals for fault and swing detections, respectively. The performance of the proposed method is evaluated using two simulation case studies simulated in PSCAD/EMTDC: (i) a single machine infinite bus network and (ii) IEEE standard 9 bus three machine network. It is shown that the proposed approach is not sensitive to nonlinear behavior of TCSCs and it is capable of detecting all types of faults, including three-phase ones, during power swing accurately. In addition, due to low computational complexity, the proposed method provides significantly high detection speed.

[1]  Xu Yan,et al.  Single-ended transient positional protection of transmission lines using mathematical morphology , 2005, 2005 International Power Engineering Conference.

[2]  Laszlo Gyugyi,et al.  Understanding FACTS: Concepts and Technology of Flexible AC Transmission Systems , 1999 .

[3]  Saptarshi Roy,et al.  Power swing protection of series compensated transmission line with novel fault detection technique , 2014, 2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE).

[4]  Sukumar M. Brahma,et al.  Application of Mathematical Morphology based filters to detect a power swing , 2010, IEEE PES General Meeting.

[5]  Sukumar Brahma,et al.  Out-of-step blocking function in distance relay using mathematical morphology , 2012 .

[6]  Rajiv K. Varma,et al.  Thyristor-Based Facts Controllers for Electrical Transmission Systems , 2002 .

[7]  Sukumar M. Brahma,et al.  Overview of mathematical morphology in power systems — A tutorial approach , 2009, 2009 IEEE Power & Energy Society General Meeting.

[8]  David Thomas,et al.  A new blocking principle with phase and earth fault detection during fast power swings for distance protection , 1995 .

[9]  Soumesh Chatterjee,et al.  Speedy Detection of Very High Resistance Faults During Power Swing , 2018, 2018 4th International Conference on Computing Communication and Automation (ICCCA).

[10]  Paresh Kumar Nayak,et al.  An unblocking assistance to distance relays protecting TCSC compensated transmission lines during power swing , 2019, International Transactions on Electrical Energy Systems.

[11]  Mojtaba Khederzadeh,et al.  Power Swing Detection in UPFC-Compensated Line by Phase Angle of Current , 2017, IEEE Journal on Emerging and Selected Topics in Circuits and Systems.

[12]  A. K. Pradhan,et al.  A Fault Detection Technique for the Series-Compensated Line During Power Swing , 2013, IEEE Transactions on Power Delivery.

[13]  Mojtaba Khederzadeh,et al.  Three-Phase Fault Detection During Power Swing by Transient Monitor , 2015, IEEE Transactions on Power Systems.

[14]  D. Nelles,et al.  New power swing blocking method , 1997 .

[15]  T. Y. Ji,et al.  Protective Relaying of Power Systems Using Mathematical Morphology , 2009 .

[16]  David Thomas,et al.  A new principle for high resistance earth fault detection during fast power swings for distance protection , 1997 .

[17]  Ibrahim Gursu Tekdemir,et al.  A novel approach for improvement of power swing blocking and deblocking functions in distance relays , 2017, 2017 IEEE Power & Energy Society General Meeting.

[18]  Ghendy Cardoso,et al.  Numerical distance relaying algorithm based on Mathematical Morphology and Least-Squares Curve Fitti , 2011 .

[19]  D. Jovcic,et al.  Analytical modeling of TCSC dynamics , 2005, IEEE Transactions on Power Delivery.

[20]  Gayadhar Pradhan,et al.  Detection of three-phase fault during power swing using zero frequency filtering , 2018, International Transactions on Electrical Energy Systems.

[21]  M. Sarlak,et al.  Fast fault detection scheme for series-compensated lines during power swing , 2017 .

[22]  T.S. Sidhu,et al.  Impact of TCSC on the protection of transmission lines , 2006, IEEE Transactions on Power Delivery.