Date of Award

6-15-2024

Document Type

Masters Thesis

Degree Name

M.S. in Electrical Engineering

Organizational Unit

Daniel Felix Ritchie School of Engineering and Computer Science, Electrical and Computer Engineering

First Advisor

Rui Fan

Second Advisor

Yun-Bo Yi

Third Advisor

David Gao

Keywords

Power, Renewable energy, Inverter-based resources (IBRs), Fault current, Permissive overreaching transfer trip scheme (POTT)

Abstract

The power generation landscape evolves, with the increase of inverter-based resources (IBRs) such as solar photovoltaics and wind turbines, providing sustainable and clean energy sources. The shift towards IBRs mitigates climate change, creating considerable challenges to traditional power system protection due to their low fault current. Conventional protection schemes are designed around the internal dynamic of synchronous generators where they can supply an elevated fault current. This thesis explores a protection scheme designed to enhance the security of IBRs. The incremental characteristics of voltage and current coupled with the Permissive Overreaching Transfer Trip scheme (POTT) provide a remarkable ability to detect a spectrum of fault conditions with a marginal fault current. A spectrum of simulation studies is conducted to test the proposed protection scheme’s effectiveness under various fault conditions and transient change. The proposed solution affirms security during external faults and normal transient conditions. During extensive testing, the proposed protection solution proved its efficacy, utilizing the incremental quantity-based POTT scheme in protecting IBRs. The findings and the analyses ensure that there is a critical need for advanced protection with the IBRs penetration.

Copyright Date

6-2024

Copyright Statement / License for Reuse

All Rights Reserved
All Rights Reserved.

Publication Statement

Copyright is held by the author. User is responsible for all copyright compliance.

Rights Holder

Osama Zangoti

Provenance

Received from ProQuest

File Format

application/pdf

Language

English (eng)

Extent

51 pgs

File Size

2.1 MB



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