Protection of Microgrid with Ideal Optimization Differential Algorithm

  • P. M. KhandareEmail author
  • S. A. Deokar
  • A. M. Dixit
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 49)


This paper process DWT (Discrete wavelet transform)-differential algorithm for optimal relay coordination issue for the microgrid. This solution works for grid-connected as well as the disconnected mode of operation. Coordination among relays of the microgrid is a complex part to handle, as the insertion of DG causes a bidirectional flow of current. Propelled protection strategies including DWT analysis of short circuit current can give bright and savvy methods for protection. Previous work has been applied with the differential algorithm on grid-connected and islanded mode, but one major deficiency is an increase in operating time of primary and secondary relay which further decreases the reliability of Microgrid. The proposed system relies on DWT-differential Analysis based approach which removes all unwanted noise and bandwidth from fault signal and differential analysis helps to select the best pair of a relay. The issue is designed as a Non-linear programming problem to limit altogether working Relay time. The Scheme is tested with IEEE 9 bus system. The comparative analysis is carried out with two traditional methods, the result shows that it accomplishes a sensational decrease in working time in the primary and secondary (backup) relay.


Protection Relay coordination Differential analysis DWT 


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© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Department of TechnologySPPUPuneIndia
  2. 2.ZCOERPuneIndia

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