A Novel Passive Method for Islanding Detection in Microgrids

Integration of Distributed Generations (DGs) in power grids is expected to play an essential role in the infrastructure and market of electrical power systems. Microgrids are small energy systems, capable of balancing captive supply and requesting resources to retain stable service within a specific boundary. Microgrids can operate in grid-connected or islanding modes. Effective islanding detection methods are essential for realizing the optimal operation of microgrids. In this paper, a new passive islanding detection method is presented according to the change rate of DG’s voltage over active power index. This technique has been applied on inverter-based and synchronous-based microgrids. The efficiency of the proposed method is verified through a comprehensive set of simulation studies carried out in Matlab/Simulink.

[1]  J.C.M. Vieira,et al.  Efficient coordination of ROCOF and frequency relays for distributed generation protection by using the application region , 2006, IEEE Transactions on Power Delivery.

[2]  Reza Noroozian,et al.  REACTIVE POWER BASED ANTI-ISLANDING SCHEME FOR SYNCHRONOUS DISTRIBUTED GENERATORS , 2012 .

[3]  M. K. Khedkar,et al.  WAVELET-ANN APPROACH TO CLASSIFY CAPACITOR SWITCHING, LOAD SWITCHING AND LINE SWITCHING TRANSIENTS , 2011 .

[4]  Ehab F. El-Saadany,et al.  A Universal Islanding Detection Technique for Distributed Generation Using Pattern Recognition , 2014, IEEE Transactions on Smart Grid.

[5]  R Noroozian,et al.  A New Method for Islanding Detection of Inverter-Based Distributed Generation Using DC-Link Voltage Control , 2011, IEEE Transactions on Power Delivery.

[6]  H.H. Zeineldin,et al.  A $Q$– $f$ Droop Curve for Facilitating Islanding Detection of Inverter-Based Distributed Generation , 2009, IEEE Transactions on Power Electronics.

[7]  Wei Lee Woon,et al.  Optimal Protection Coordination for Microgrids With Grid-Connected and Islanded Capability , 2012 .

[8]  J.C.M. Vieira,et al.  An Investigation on the Nondetection Zones of Synchronous Distributed Generation Anti-Islanding Protection , 2008, IEEE Transactions on Power Delivery.

[9]  M. Ropp,et al.  Power line carrier permissive as a simple and safe method of enabling inverter ride-through operation of distributed grid-tied photovoltaic systems , 2011, 2011 IEEE International Symposium on Power Line Communications and Its Applications.

[10]  Wilsun Xu,et al.  A practical method for assessing the effectiveness of vector surge relays for distributed generation applications , 2004, IEEE Transactions on Power Delivery.

[11]  Jan T. Bialasiewicz,et al.  Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey , 2006, IEEE Transactions on Industrial Electronics.

[12]  J.L. Kirtley,et al.  A Simple Technique for Islanding Detection With Negligible Nondetection Zone , 2009, IEEE Transactions on Power Delivery.

[13]  Amin Zamani,et al.  A strategy for protection coordination in radial distribution networks with distributed generators , 2010, IEEE PES General Meeting.

[14]  Arash Akhlaghi,et al.  A novel hybrid islanding detection method combination of SMS and Q-f for islanding detection of inverter- based DG , 2014, 2014 Power and Energy Conference at Illinois (PECI).

[15]  Walmir Freitas,et al.  Power imbalance application region method for distributed synchronous generator anti-islanding prote , 2011 .