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Title: A communications framework with applications in wide-area monitoring, protection and control
Author: Hastings, John Charles
ISNI:       0000 0004 6422 4118
Awarding Body: Queen's University Belfast
Current Institution: Queen's University Belfast
Date of Award: 2017
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The electrical utility, which has traditionally been a centralised predictable system, is now changing to becoming a decentralised, more dynamic system with increasing distributed generation and changeable load patterns; not to mention widespread EV on the horizon. With these changes, there is an increased desire for WAMPAC to aid in managing this complex dynamic system, particularly at the distribution and prosumer level - where this framework is aimed. This thesis presents a novel communications framework to support these next-generation smart grid applications. Taking Synchrophasor data as a case-study due to its potential uses for both real- and non-real-time applications, issues are identified with existing protocols used to represent and deliver this data. From these issues, requirements are identified for data transport next generation applications. Reliability, extensibility and security are identified as key components for WAMPAC systems. These requirements act as a metric to help decide between various technologies for message formatting, and transport - which is essentially the core of WAMPAC communications. Upon investigation of the current state of the art in communications systems data representation and data transport mechanisms are selected. Namely, JSON/Protobuf for extensible message formatting, and MQTT publish/subscribe protocol as a secure, reliable and scalable delivery mechanism. The latter part of the thesis describes the implementation and testing stages that solidify the suitability of JSON and MQTT for WAMPAC communications. There is no literature to date that presents such an approach to the challenges of next-generation smart grid communications. Many of the key ideas and concepts presented in this thesis have been accepted in peer reviewed publications.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available