Grid Connected Power Converter Control

Control of Grid Connected Power Converters for Renewable Energy Applications

Degree type

PhD

Closing date

1 February 2025

Campus

Hobart

Citizenship requirement

Domestic / International

About the research project

Renewable energy sources, such as wind and solar, utilise power electronic converters to efficiently integrate generated energy into the power grid. These converters must perform optimally under various grid conditions, such as unbalance, weak grids and harmonic distortion. Grid-side converters play a critical role in grid synchronisation and must be carefully designed to adhere to regulations and specifications for interconnected distributed generation. Grid-connected power converters operate in two main modes: grid-forming and grid-following. Grid-forming converters autonomously establish the grid voltage and frequency, providing essential stability during grid disturbances. In contrast, grid-following converters adjust their output based on external grid signals, frequently employing Phase-Locked Loops (PLLs) for output synchronisation. Transitions between these modes can lead to significant transient effects, such as overshoots and undershoots, due to their unique control mechanisms and the dependence on PLLs in the grid-following mode.

This project aims to understand and mitigate these transients to enhance system stability and reliability, particularly in grids with a high concentration of renewable energy sources. The project encompasses the derivation, modelling, simulation, prototyping, and experimental testing of innovative control strategies to validate and optimise performance. By improving the control of grid-connected power converters, this project contributes to the advancement of grid integration technologies for renewable energy systems, supporting the global transition to sustainable power systems.

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Primary Supervisor

Meet Prof Michael Negnevitsky

Funding

Applicants will be considered for a Research Training Program (RTP) scholarship or Tasmania Graduate Research Scholarship (TGRS) which, if successful, provides:

  • a living allowance stipend of $33,511 per annum (2025 rate, indexed annually) for 3.5 years
  • a relocation allowance of up to $2,000
  • a tuition fees offset covering the cost of tuition fees for up to four years (domestic applicants only)

If successful, international applicants will receive a University of Tasmania Fees Offset for up to four years.

As part of the application process you may indicate if you do not wish to be considered for scholarship funding.

Other funding opportunities and fees

For further information regarding other scholarships on offer, and the various fees of undertaking a research degree, please visit Scholarships and fees.

Eligibility

Applicants should review the Higher Degree by Research minimum entry requirements.

Ensure your eligibility for the scholarship round by referring to our Key Dates.

Additional eligibility criteria specific to this project/scholarship:

  • The applicant must be able to undertake the project on-campus

Selection Criteria

The project is competitively assessed and awarded.  Selection is based on academic merit and suitability to the project as determined by the College.

Additional essential selection criteria specific to this project:

  • Demonstrated research experience, such as a master's degree or prior research projects, with a focus on power systems, renewable energy, and power electronics
  • Proficiency in modelling and simulation software, real-time simulation and testing, programming languages, and relevant tools for the project
  • Strong analytical and problem-solving skills, as the project involves complex modelling, simulation, and data analysis

Additional desirable selection criteria specific to this project:

  • Candidates with industry experience in the field are encouraged to apply
  • Motivated to learn and have a scientific mindset and team spirit

Application process

  1. Select your project, and check that you meet the eligibility and selection criteria, including citizenship;
  2. Contact Prof Michael Negnevitsky to discuss your suitability and the project's requirements; and
  3. In your application:
    • Copy and paste the title of the project from this advertisement into your application. If you don’t correctly do this your application may be rejected.
    • Submit a signed supervisory support form, a CV including contact details of 2 referees and your project research proposal.
  4. Apply prior to 1 February 2025.

Full details of the application process can be found under the 'How to apply' section at Research degrees.

Following the closing date applications will be assessed within the College. Applicants should expect to receive notification of the outcome by email by the advertised outcome date.

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