Unintentional Passive Islanding Detection and Prevention Method with Reduced Non-Detection Zones

Sowmya Ramachandradurai, Narayanan Krishnan and Natarajan Prabaharan
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Sowmya Ramachandradurai: Department of Electrical and Electronics Engineering, SASTRA Deemed to be University, Thanjavur 613401, India
Narayanan Krishnan: Department of Electrical and Electronics Engineering, SASTRA Deemed to be University, Thanjavur 613401, India
Natarajan Prabaharan: Department of Electrical and Electronics Engineering, SASTRA Deemed to be University, Thanjavur 613401, India

Energies, 2022, vol. 15, issue 9, 1-26

Abstract: Islanding detection and prevention are involved in tandem with the rise of large- and small-scale distribution grids. To detect islanded buses, either the voltage or the frequency variation has been considered in the literature. A modified passive islanding detection strategy that coordinates the V-F (voltage–frequency) index was developed to reduce the non-detection zones (NDZs), and an islanding operation is proposed in this article. Voltage and frequency were measured at each bus to check the violation limits by implementing the proposed strategy. The power mismatch was alleviated in the identified islands by installing a battery and a diesel generator, which prevented islanding events. The proposed strategy was studied on the three distinct IEEE radial bus distribution systems, namely, 33-, 69-, and 118-bus systems. The results obtained in the above-mentioned IEEE bus systems were promising when the proposed strategy was implemented. The results of the proposed strategy were compared with those of methods developed in the recent literature. As a result, the detection time and number of islanded buses are reduced.

Keywords: distributed generation (DG); backward and forward sweep (BFS) method; passive islanding detection; islanding detection time; islanding prevention; V-F (voltage–frequency) index; non-detection zone (NDZ) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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