System strength workshop

Following stakeholder recommendations, AEMO and CIGRE Australia hosted a workshop for stakeholder and participants to promote a common understanding of definitions, problem statements, appropriate solutions, and complementary perspectives relating to system strength. Furthermore, the workshop explained the system strength phenomena and solutions in a way that can be clearly understood and consistently applied by practicing engineers and non-engineers across the Australian electricity industry and academia.

About the workshop

The workshop was built on learnings from an internationally-focused system strength workshop organised by Australian CIGRE members for the CIGRE 2020 e-Session held in August 2020.

Presenters had been sourced from market institutions, transmission and distribution networks, the generation sector, equipment manufacturers and power system advisors, to give a holistic picture of system strength across five key themes:

Background

This session discusses what is meant by ‘system strength’ and what are the key issues to be considered. Presentations will review both regulatory and technical standpoints and examine how various issues may evolve going forward.

Topic and speakers Speakers Organisation
Overview of the workshop Babak Badrzadeh AEMO
Keynote 1 Alex Wonhas AEMO
Keynote 2 David Bones CIGRE Australia
Fundamental principles Babak Badrzadeh AEMO
Relevant regulatory frameworks: present and moving forward James Hyatt and Julian Eggleston AEMC
Models and tools: present and moving forward Sorrell Grogan AEMO
System strengthworkshop – Session 1

This recording covers session 1 of the system strength workshop with focus on the background and what system strength is.

Generator connections

Presenters from across the industry will share their experiences on system strength challenges in different parts of NEM, solutions that have been applied, lessons learned and improvement opportunities sought.

Topic and speakers

Speakers

Organisation

NEM connections trends: challenges and opportunities Mark Shilliday AEMO
System strength impact assessment explained Sachin Goyal Powerlink
Power quality challenges under low system strength conditions Prabodha Paranavithana TransGrid
System strength challenges and solutions in distribution networks Alan Louis and Hieu Nguyen Energy Queensland
Powercor
A Generator’s perspective Trevor Lim Total Eren
A consultant’s perspective Tony Morton Vysus Group
A solar inverter manufacturer’s perspective Daniel Premm SMA (Germany)
System strength workshop – Session 2

This recording covers session 2 of the system strength workshop with focus on generator connections.


System strength workshop – Q&A part of session 1&2

This recording covers the Q&A part of session 1&2 of the system strength workshop.

Power system operation

AEMO and a transmission network service provider will share tools and methods implemented to manage the impact of low system strength conditions on real-time power system operation.

Topic and speakers Speakers Organisation
Outage assessment and constraint development Ben Blake AEMO
System strength in islanded power systems and relation with inertia Andrew Halley TasNetworks
Increasing need for system testing and monitoring Nilesh Modi AEMO
System strength workshop – Session 3

This recording covers session 3 of the system strength workshop with focus on power system operation.

System strength workshop – Q&A part of session 3

This recording covers the Q&A part of session 3 of the system strength workshop.

Power system planning and emerging technologies

Discussion will include examples of system strength shortfalls identified in some NEM regions, and explore different network and non-network solutions, their applications and limitations based on existing and emerging technologies.

Topic and speakers Speakers Organisation
National power system planner’s perspective Samantha Christie AEMO
Network investment to improve system strength Andrew van Eyk ElectraNet
The use of existing assets to improve system strength Sachin Goyal Powerlink
Grid-forming inverters explained Stephen Sproul Hitachi ABB Power Grids
Managing system strength during the transition to renewables Stephen Hinchliffe GHD
A Gentailer portfolio perspective Wai-Kin Wong AGL
System strength workshop – Session 4

This recording covers session 4 of the system strength workshop with focus on power system planning and emerging technologies.

System strength workshop – Q&A part of session 4

This recording covers the Q&A part of session 4 of the system strength workshop.

International and academic experiences

International and Australian presenters from both industry and academia will share some of the relevant research and development works with regard to system strength.

Topic and speakers Speakers Organisation
Summary of relevant CIGRE activities Andrew Halley CIGRE Australia
Impact of system strength on operation of protection systems Aboutaleb Haddadi and Jean Mahsredjian EPRI (US), Polytechnique Montréal (Canada)
Examples of relevant research Behrooz Bahrani and Firuz Zare Monash University University of Queensland
A wind turbine manufacturer’s global experience Torsten Lund and Gert Karmisholt Andersen Vestas (Denmark)
System strength workshop – Session 5

This recording covers session 5 of the system strength workshop with focus on international and academic experiences.

System strength workshop – Q&A part of session 5

This recording covers the Q&A part of session 5 of the system strength workshop.

For further information, or queries regarding the System Strength workshop, please contact the Information and Support Hub

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