The validation of dynamic power system models for Distributed Photovoltaics (DPV) and Composite Load (CMLD)

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This presentation explores the validation of AEMO’s dynamic models for Distributed Photovoltaics (DPV) and Composite Load (CMLD), using major real-world power system disturbances from early 2024 as reference points. It presents an evaluation of the DERAEMO1 and CMLD models within PSS®E, focusing on their ability to replicate load shake-off, transient responses, and operational demand swings following disturbances and during periods of high DPV penetration. Through comparisons with traditional ZIP load models, the presentation highlights significant improvements in both transient and steady-state accuracy. Key topics covered include model validation, impact of DPV penetration on operational demand swings, and the role of these models in strengthening power system planning and operational assessments.


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  • Starts 08 July 2025 02:00 PM UTC
  • Ends 21 July 2025 02:00 PM UTC
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Topic:

Validation of Power System Models for Distributed Energy Resource (DER)

Filip Brnadic, Principal Engineer, AEMO

Biography:

Filip Brnadic is a Principal Engineer with over 10 years of experience in power systems engineering, currently leading the Distributed Energy Resource (DER) Modelling stream within AEMO’s Operations team. He has led the development and deployment of Australia’s first dynamic models that represent the aggregate behaviour of distributed PV and composite loads during power system disturbances.

Filip has extensive expertise in simulation tools such as PSS®E, PSCAD, and PowerFactory, and works closely with R&D teams to incorporate real-world bench testing into model development. His work supports a wide range of planning and operational studies across AEMO.

Before joining AEMO, Filip worked at DIgSILENT Pacific, where he conducted power system studies, designed and commissioned protection schemes, and delivered training on PowerFactory and other DIgSILENT tools for major clients.

Address:Queensland, Australia