Benefits and Challenges of Applying Travelling Wave Technology to Sub-transmission Networks

Wyper, Rye (2022) Benefits and Challenges of Applying Travelling Wave Technology to Sub-transmission Networks. [USQ Project]

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Sub-transmission line protection relays are widely used in the Electricity Supply Industry as both protection devices and fault locating devices. With networks aging, outages due to transient faults have become more frequent. Reliability issues with existing fault locating and line monitoring methods have had a detrimental impact on network reliability, performance, and cost. Identifying permanent fault locations is important for a network’s restoration, however, locating incipient faults can have greater benefits. Travelling wave technology has been used on transmission networks for fault locating and line monitoring with great success, however it poses many challenges when applied to sub-transmission network topologies. With an industry-wide focus on reliability, utility companies are continually seeking technology that can help assist network performance. Customer expectations for not only cheaper electricity but also a safer network are increasing and due to networks aging and expanding this need for new technology is growing.

Both single and double-ended travelling wave distance to fault methods as well as line monitoring techniques are becoming popular within the electricity supply industry. The research has documented the development of recommended guidelines for the implementation of such technology within sub-transmission networks and considers the effects of different network topologies for installation. The development of these guidelines is for use throughout Energy Queensland, who provided funding the project, as well as other entities within the electricity supply industry. By investigating previous studies on travelling waves and applying the learnings at a sub-transmission level, it is expected that the industry will use these learnings to save substantial costs from multiple outages and damage to the network, while increasing safety for both the public and workers within the industry.

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Item Type: USQ Project
Item Status: Live Archive
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -)
Supervisors: Ahfock, Tony; Coggan, Rob
Qualification: Bachelor of Engineering (Honours) (Power)
Date Deposited: 20 Jun 2023 04:48
Last Modified: 20 Jun 2023 04:48
Uncontrolled Keywords: Sub-transmission line protection relays; Electricity Supply Industry; protection; fault locating

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