Relay Coordination and Optimization techniques using DWT-Differentiation Algorithms for Fault Detection in Microgrid

Pooja Khandare; Sanjay Deokar; Arati Dixit; Pooja Khandare; Sanjay Deokar; Arati Dixit

doi:10.3934/energy.2020.4.563

AIMS Energy

2020, Volume 8, Issue 4: 563-579. doi: 10.3934/energy.2020.4.563

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Research article Topical Sections

Relay Coordination and Optimization techniques using DWT-Differentiation Algorithms for Fault Detection in Microgrid

Department of Technology, Savitribai Phule Pune University,Pune, Maharashtra, Applied Research Associates, Inc, Raleigh, USA

Received: 20 March 2020 Accepted: 03 June 2020 Published: 29 June 2020

The microgrid is assuming an indispensable role in the power area and greatly affects inexhaustible reconciliation. There are numerous specialized troubles to move so as to utilize high ability in the microgrid. The significant issue in the microgrid has its protection challenges as the bidirectional progression of current moves through transports. This paper proposes novel Discrete Wavelet Transform-Differential Algorithm Techniques, which help to secure Distributed Generations and other costly electronic parts from the defective condition. The occurrence of any shortcoming on the microgrid causes alters in amplitude and course, which prompts a hamper on the surviving protection framework. In the proposed scheme, short circuit current is pre-processed through discrete wavelet transform (DWT) transform to remove all noise and high pass and low pass content in the signal and undergoes state-of-art of adaptive protection for selection of relay. This algorithm implements on the Standard IEEE 9 bus system in MATLAB environment and with a single line to ground fault at 8 locations tested with pair of 21 relays for primary and backup protection in the grid-connected and separated mode of operation. The traditional methods compared with the proposed method in terms of Different parameters like PS (plug setting ), TDS (time dial span), CTD (coordination time duration), Top (operating time of relay). To prove the better implementation of results, one real-time system as a case study selected with the hybrid microgrid.
- microgrid protection,
- relay coordination,
- optimization,
- differential algorithm,
- DWT,
- distributed energy resources
Citation: Pooja Khandare, Sanjay Deokar, Arati Dixit. Relay Coordination and Optimization techniques using DWT-Differentiation Algorithms for Fault Detection in Microgrid[J]. AIMS Energy, 2020, 8(4): 563-579. doi: 10.3934/energy.2020.4.563

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Abstract

The microgrid is assuming an indispensable role in the power area and greatly affects inexhaustible reconciliation. There are numerous specialized troubles to move so as to utilize high ability in the microgrid. The significant issue in the microgrid has its protection challenges as the bidirectional progression of current moves through transports. This paper proposes novel Discrete Wavelet Transform-Differential Algorithm Techniques, which help to secure Distributed Generations and other costly electronic parts from the defective condition. The occurrence of any shortcoming on the microgrid causes alters in amplitude and course, which prompts a hamper on the surviving protection framework. In the proposed scheme, short circuit current is pre-processed through discrete wavelet transform (DWT) transform to remove all noise and high pass and low pass content in the signal and undergoes state-of-art of adaptive protection for selection of relay. This algorithm implements on the Standard IEEE 9 bus system in MATLAB environment and with a single line to ground fault at 8 locations tested with pair of 21 relays for primary and backup protection in the grid-connected and separated mode of operation. The traditional methods compared with the proposed method in terms of Different parameters like PS (plug setting ), TDS (time dial span), CTD (coordination time duration), Top (operating time of relay). To prove the better implementation of results, one real-time system as a case study selected with the hybrid microgrid.

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