SLGP Header

A Novel Passive Islanding Detection Algorithm for a Bidirectional Dual Utility Interactive Inverter

IJEECC Front Page

A bidirectional dual inverter for utility interactive systems along with a new passive islanding detection system is presented here as the project topic. The method is preferred to any single phase inverter in a grid operating capacity. A hybrid inverter which operates in multiple operating modes is synchronized with an AC Grid system initially. The power feeding to the grid is in unity power factor and harmonics are eliminated using the control loop. Then Grid is manually turned off in the steady state condition and the proposed islanding detection method is demonstrated. Different algorithms support the system and various High Level Languages are used to complete the coding part of the project. The validity is checked through comparisons and different model predictions with MATLAB simulations. An entire sample design for 300VA hybrid inverter is given to demonstrate the application of the process for the micro grid systems. Hardware model for new islanding detection system is completed and results are verified.
Keywords:Bidirectional dual inverter,Hybrid inverter, Islanding detection, Unity power factor.


  1. Nikhil Sasidharan and Jai Govind Singh, "A Novel Single Stage Single Phase Reconfigurable Inverter Topology for a Solar Powered Hybrid AC/DC Home” IEEE Trans. Ind. Electron.,vol.64, no. 4, pp.1-4, April 2017.
  2. Jacob A. Mueller, Md. Rasheduzzaman, and Jonathan W. Kimball, “A Model Modification Process for Grid-Connected Inverters Used in Islanded Microgrids”, IEEE Trans. ENERGY CONVERSION, vol. 31, no. 1, pp.240-242, Mar 2016.
  3. Paul H. Kydd, Joel R. Anstrom, Paul D. Heitmann, Kevin J. Komara and Michael E. Crouse, "Vehicle-Solar-Grid Integration:Concept and Construction," IEEE Power and Energy Technology Systems Journal ,vol. 3, no. 3,pp.1-3, Sept. 2016.
  4. Xiangdong Zong, Peter W. Lehn,"Reactive Power Control of Single Phase Grid Tied Voltage Sourced Inverters for Residential PV Application", IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, vol. 6, no. 5,pp.696-698, Dec. 2012.
  5. Yi-Hung Liao, “A Novel Reduced Switching Loss Bidirectional AC/DC Converter PWM Strategy With Feed forward Control for Grid Tied Microgrid Systems”, IEEE Trans. Power Electron., vol. 29, no. 3, pp.1500-1503, Mar 2014.
  6. Asim Datta, Debasree Saha, Amitava Ray and Priyanath Das,"Evaluation of anti-islanding techniques for renewable energy powered distributed generators using analytic network process", IET Renewable Power Generation, vol. 10, no. 9,pp.5-7, Oct 2016.
  7. Sung-Ho Lee, Woo-Jun Cha, Jung-Min Kwon and Bong-Hwan Kwon, "Control Strategy of Flyback Microinverter with Hybrid Mode for PV AC Modules, IEEE Trans. Ind. Electron.,vol.63, no. 2, pp.995-1002, Feb.2016.
  8. Ward Bower and Michael Ropp, "Evaluation of Islanding Detection Method for Utility-Interactive Inverters in Photovoltaic Systems",Sandia National Report operated for the United States Department of Energy by Sandia Corporation.pp.29-35, Nov 2002.
  9. IEEE-SA Standards Board, "IEEE Standard for Interconnecting Distributed Resources with Electric Power Systems",IEEE Std 1547™-2003, pp.8-9, Jul 2003.