There is a particular kind of engineering problem that keeps me reading long after I meant to stop, and for me it is the stability of power systems dominated by inverter based generation. Australia has installed more rooftop solar per capita than any nation on earth, and on a mild spring afternoon renewable sources can already meet the majority of demand across the National Electricity Market. That achievement has created a harder problem beneath it. A grid designed around the spinning inertia of coal and gas turbines must now stay stable when millions of distributed inverters, each following its own control logic, are the dominant source of power. This is the problem I want to devote a doctorate to, and it is why I am applying to your renewable energy engineering programme.
My preparation for doctoral study has been deliberate. I completed a Bachelor of Engineering (Electrical and Electronic) with first class honours at the University of Adelaide, where my final year thesis modelled voltage regulation on low voltage feeders with high photovoltaic penetration. That project gave me my first real taste of research: the frustration of a simulation that would not converge, the discipline of validating a model against field data, and the quiet satisfaction of a result that finally made physical sense. I presented the work at a student conference and, with my supervisor, began preparing it for a journal, an experience that taught me how much careful revision genuine scholarship requires.
Since graduating I have spent two years as a graduate engineer with a distribution network service provider in South Australia, the jurisdiction that has moved further into variable renewables than almost any comparable grid. My role in network planning placed me directly against the operational reality behind the theory: managing minimum demand events, interpreting the constraints in the Australian Energy Market Operator’s forecasts, and helping to assess where community batteries might defer network augmentation. I am proud of this work, but it has also shown me the limits of what can be solved from within a utility. The questions I find most compelling, around control strategies for grid forming inverters and the accurate representation of aggregated distributed resources, need the depth and the freedom that only a research degree provides.
I have chosen this programme because of its research group rather than in spite of it. The power and energy systems group has published precisely the work I have been citing in my own reports, particularly on grid forming inverter control and hardware in the loop testing, and its partnerships with industry and with bodies such as the Australian Renewable Energy Agency mean the research is tested against real systems rather than confined to simulation. I have read recent theses from the group and reached out to two prospective supervisors whose approach to system strength I find compelling. I am seeking supervisors who will push my assumptions, and a setting where a test rig failing at eleven at night is a shared problem rather than a solitary one. My proposed research would investigate control and stability methods that allow very high, potentially total, instantaneous penetration of inverter based resources without compromising system security.
My goals extend beyond the thesis. In the near term I want to become a genuinely capable researcher: publishing carefully, presenting at international venues, and contributing to the open source tools the field depends on. In the longer term I intend to work at the boundary between research and industry, whether in a body such as the CSIRO, in a network operator’s advanced engineering team, or as an academic training the engineers this transition will require. Australia has committed to substantial emissions reduction by 2030 and to net zero by 2050, and the engineering required to deliver those targets is not yet fully solved. I would like my working life to be spent solving parts of it.
I understand the demands of a doctorate: the long uncertain stretches, the need for self direction, and the resilience required when results disappoint. My honours research and my industry experience have given me a realistic picture of both the difficulty and the reward, and my commitment is settled rather than provisional. I would welcome the opportunity to contribute to your group and to the national effort it serves.