An Algorithm for Microgrid Protection using Z-Bus matrix formulation in a Central Master Controller

Vinod, V and Shenoy, UJ (2020) An Algorithm for Microgrid Protection using Z-Bus matrix formulation in a Central Master Controller. In: 2019 IEEE 5th International Conference for Convergence in Technology, I2CT 2019 March 2019, 29-31 March 2019, Bombay, India.

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Abstract

One of the main challenges faced in the operation of microgrid is the protection coordination due to the presence of different types of distributed energy sources. This paper addresses the issues such as delayed operation of protective relay in the absence of main grid which in turn will affect the relay coordination in microgrid. Majority of the problems can be solved with the help of Master controller (MC) having communication facility with various relays installed in the system. The work carried out proposes an algorithm to find out various relay setting parameters such as Time Multiplier Setting (TMS), Pick up current Ipickup and the suitable operating characteristics curve for the over current relay during both islanded mode and grid connected mode based on formulation of Z-Bus matrix. The computer program to find out the elements of Z-Bus matrix is also explained with the help of relevant formulae. The relay coordination for both radial and ring type configuration of the microgrid has been studied and results are presented. © 2019 IEEE.

Item Type:	Conference Paper
Publication:	2019 IEEE 5th International Conference for Convergence in Technology, I2CT 2019
Publisher:	Institute of Electrical and Electronics Engineers Inc. (IEEE)
Additional Information:	cited By 0; Conference of 5th IEEE International Conference for Convergence in Technolog, I2CT 2019 ; Conference Date: 29 March 2019 Through 31 March 2019; Conference Code:158506
Keywords:	Communication facilities; Distributed energy sources; Grid-connected modes; Microgrid protections; Operating characteristics curves; Protection coordination; Relay coordination; Time Multiplier Settings, Microgrids
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	19 Oct 2020 10:42
Last Modified:	19 Oct 2020 10:42
URI:	http://eprints.iisc.ac.in/id/eprint/65208

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