Dr Gregor Verbic

PhD in Electrical Engineering (University of Ljubljana, Slovenia)

Senior Lecturer
School of Electrical and Information Engineering
Centre for Future Energy Networks

J03 - Electrical Engineering Building
The University of Sydney

Telephone +61 2 9351 8136

Website Centre for Future Energy Networks

School of Electrical and Information Engineering

Future Grid Cluster

Curriculum vitae Curriculum vitae

Biographical details

Dr Gregor Verbic is a Senior Lecturer in the Centre for Future Energy Networks based in the School of Electrical and Information Engineering. Prior to this, he was an assistant professor in Laboratory of Power Systems at University of Ljubljana, where he is now an adjunct professor and where he received his PhD in electrical engineering. In 2005, he was a NATO-NSERC Postdoctoral Fellow at the University of Waterloo, Canada under supervision of Prof Claudio Cañizares. Between 2008 and 2010 he was head of the investment department in Interenergo, Ljubljana, Slovenia. The company invests in renewable energy in the Balkans region, with a particular focus on small hydro.

Gregor's major research contribution is his novel method for voltage instability prediction based on local voltage and current phasors. As opposed to the majority of other methods that treat the system as a whole, Gregor's approach needs only the information that is readily available at every bus in the system equipped with a phasor measurement unit. There are several advantages to this unique approach, most notably computational efficiency and no need for a communication link with the control centre. This research resulted in the IEEE prize paper award in 2006.

Gregor's research focus later shifted to electricity markets including the pricing of power-reserves for frequency control and transmission service pricing. During his time at University of Waterloo in Canada, Gregor developed novel methods and tools to better represent system uncertainties in auction models used in electricity markets, to study the effect of these uncertainties in pricing and dispatch. His subsequent research looked at developing new methods and tools for stochastic optimisation of multi-energy carrier systems, including intermittent energy sources and hydrogen.

His current research is motivated by the evolution of power systems to future grids, dominated by intermittent renewable energy sources. Drawing on his expertise in power-system operation, dynamics and control, electricity markets, applied optimisation and probabilistic analysis, he is aiming to develop tools and methods that will enable a paradigm shift in power system operation, from generation following load to load following generation.

Recently, Gregor has focused on aggregation and control of distributed energy resources (DERs) at the residential level, including smart appliances and electric vehicles, proposing ways for DERs to be used in balancing the increasingly volatile generation. He is concentrating on scalable control algorithms enabling seamless integration and plug and play functionality. Gregor is also interested in wind power integration, focusing of ancillary services, mostly frequency control, and market implications. He and his students proposed a novel control algorithm that enables participation of wind power system in system support by providing frequency regulation capability. The need for de-loaded operation is significantly reduced since the proposed approach makes it possible to use the kinetic energy of the rotating masses for this purpose.

Gregor serves as a reviewer in numerous high ranking journals in the area of power and energy systems. He is a senior member of the IEEE.

Research interests

According to Dr Gregor Verbic, solving the sustainable energy supply puzzle holds the key to the prosperity of humankind. As we're all aware, our current reliance on fossil fuels needs to be replaced with a renewable alternative - not only because using fossil fuels causes global warming, but also because we are about to run out of cheap fossil fuels. Finding a technically sound and socially acceptable solution is the focus of Dr Verbic's research.

"My research aims to find ways of harnessing the untapped potential of distributed energy resources connected at lower voltage levels - including small-scale distributed generation, energy storage systems, electric vehicles and smart appliances - to be used as a system resource, which will make it possible for us to transform our fossil fuel-based electricity supply into a more sustainable one based on renewable energy sources such as wind and solar.

"A good example is energy management in residential buildings. Many Australians have solar panels installed on their roofs, and use mains power as a back-up. With improved energy storage and a home energy management system, they'll be able to reshape their energy consumption pattern to avoid using mains electricity when it's most expensive. Network operators will benefit from the more efficient use of resources and reduced peak demand, and users will have more control over their energy expenditure by being able to use energy more economically.

"My work is contributing towards the transformation of our current electricity infrastructure into a 'smart', electronically automated system that delivers services to customers more economically and with improved energy efficiency. My ultimate goal is to enable zero-carbon grids with minimal impact to society.

"I've been working in this field since the late 1990s, and joined the University of Sydney in 2010. My main reason for coming here was to find a productive and encouraging academic environment, and this has turned out to be a real boost to my research."

Teaching and supervision

ELEC3203 - Electricity Networks

ELEC5206 - Sustainable Energy Systems

ELEC5732 - Foundations of Electricity Networks

Themes

Clean energy

Selected grants

2013

  • Distributed control for wide-area demand response; Dong Z, Verbic G; Australian Research Council (ARC)/Discovery Projects (DP).

2012

  • Australian Centre for Energy Storage Research (ACESeR); Maschmeyer T, Masters A, Vassallo A, Minett A, Lyster R, Crossley P, Hill D, Verbic G, Hyde R, Chester L, Frost G; DVC Research/Research Network Scheme (SyReNS).

2011

  • Smart House Energy Management System; Verbic G, Hill D; Australian Research Council (ARC)/Linkage Projects (LP).

Selected publications

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Journals

  • Zertek, A., Verbic, G., Pantos, M. (2012). A Novel Strategy for Variable-Speed Wind Turbines' Participation in Primary Frequency Control. IEEE Transactions on Sustainable Energy, 3(4), 791-799.
  • Taljan, G., Verbic, G., Pantos, M., Sakulin, M., Fickert, L. (2012). Optimal Sizing of Biomass-Fired Organic Rankine Cycle CHP System with Heat Storage. Renewable Energy, 41, 29-38. [More Information]
  • Zertek, A., Verbic, G., Pantos, M. (2012). Optimized Control Approach for Frequency-Control Contribution of Variable Speed Wind Turbines. IET Renewable Power Generation, 6(1), 17-23. [More Information]
  • Taljan, G., Fowler, M., Canizares, C., Verbic, G. (2008). Hydrogen storage for mixed wind-nuclear power plants in the context of a Hydrogen Economy. International Journal of Hydrogen Energy, 33(17), 4463-4475. [More Information]
  • Taljan, G., Canizares, C., Fowler, M., Verbic, G. (2008). The Feasibility of Hydrogen Storage for Mixed Wind-Nuclear Power Plants. IEEE Transactions On Power Systems, 23(3), 1507-1518. [More Information]
  • Tomsic, T., Verbic, G., Gubina, F. (2007). Revision of the underfrequency load-shedding scheme of the Slovenian power system. Electric Power Systems Research, 77(5-6), 494-500. [More Information]
  • Pantos, M., Verbic, G., Gubina, F. (2006). An improved method for assessing voltage stability based on network decomposition. International Journal of Electrical Power and Energy Systems, 28(5), 324-330. [More Information]
  • Smon, I., Verbic, G., Gubina, F. (2006). Local Voltage-Stability Index Using Tellegen's Theorem. IEEE Transactions On Power Systems, 21(3), 1267-1275. [More Information]
  • Verbic, G., Pantos, M., Gubina, F. (2006). On voltage collapse and apparent-power losses. Electric Power Systems Research, 76, 760-767. [More Information]
  • Verbic, G., Canizares, C. (2006). Probabilistic Optimal Power Flow in Electricity Markets Based on a Two-Point Estimate Method. IEEE Transactions On Power Systems, 21(4), 1883-1893. [More Information]
  • Pantos, M., Verbic, G., Gubina, F. (2005). Modified Topological Generation and Load Distribution Factors. IEEE Transactions On Power Systems, 20(4), 1998-2005. [More Information]
  • Verbic, G., Gubina, F. (2004). A New Concept of Voltage-Collapse Protection Based on Local Phasors. IEEE Transactions on Power Delivery.
  • Verbic, G., Gubina, F. (2004). A novel scheme of local protection against voltage collapse based on the apparent-power losses. International Journal of Electrical Power and Energy Systems, 26(5), 341-347. [More Information]
  • Verbic, G., Gubina, F. (2004). Cost-Based Models for the Power-Reserve Pricing of Frequency Control. IEEE Transactions On Power Systems, 19(4), 1853-1858. [More Information]
  • Verbic, G., Gubina, F. (2003). Fast voltage-collapse line-protection algorithm based on local phasors. IET Generation, Transmission and Distribution, 150(4), 482-486. [More Information]

Conferences

  • Chapman, A., Verbic, G., Hill, D. (2013). A healthy dose of reality for game-theoretic approaches to residential demand response. Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid (IREP 2013), Piscataway, NJ: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Wang, H., Meng, K., Luo, F., Dong, Z., Verbic, G., Xu, Z., Wong, K. (2013). Demand response through smart home energy management using thermal inertia. Australasian Universities Power Engineering Conference AUPEC 2013, Hobart, Australia: (IEEE) Institute of Electrical and Electronics Engineers.
  • Byrne, C., Verbic, G. (2013). Feasibility of residential battery storage for energy arbitrage. Australasian Universities Power Engineering Conference (AUPEC 2013), Hobart: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Hill, D., Liu, T., Verbic, G. (2012). Smart Grids as Distributed Learning Control. 2012 IEEE Power and Energy Society General Meeting (PES-GM), San Diego: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Taljan, G., Verbic, G., Pantos, M., Sakulin, M., Fickert, L. (2011). Optimal Sizing of Biomass-Fired Organic Rankine Cycle CHP Systems with Heat Storage. International Conference on Clean Electrical Power ICCEP 2011, United States: IEEE Xplore. [More Information]
  • Tischer, H., Verbic, G. (2011). Towards a smart home energy management system - A dynamic programming approach. 2011 IEEE PES Innovative Smart Grid Technologies ISGT Asia Conference, Piscataway, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Zertek, A., Verbic, G., Pantos, M. (2010). Participation of DFIG Wind Turbines in Frequency Control Ancillary Service by Optimized Rotational Kinetic Energy. 7th International Conference on the European Energy Market EEM 2010, Madrid, Spain: IEEE Xplore. [More Information]
  • Taljan, G., Verbic, G., Tomsic, L. (2008). Optimal sizing of generating units - turbine diameter based on transient stability criteria. HYDRO International Conference and Exhibition 2008.
  • Taljan, G., Canizares, C., Fowler, M., Verbic, G. (2008). Study of Mixed Wind-Nuclear-Hydrogen Power Plants. 40th North American Power Symposium NAPS 2008, United States: IEEE Xplore. [More Information]
  • Verbic, G., Pantos, M., Gantar, J. (2006). A Novel Principle for Measuring Overfrequency and Frequency Rate of Change. 15th International Conference on Power System Protection PSP 2006.
  • Verbic, G., Schellenberg, A., Rosehart, W., Canizares, C. (2006). Probabilistic Optimal Power Flow Applications to Electricity Markets. 9th International Conference on Probabilistic Methods Applied to Power Systems PMAPS 2006, United States: IEEE Xplore. [More Information]
  • Verbic, G., Gubina, F. (2004). A Simple Probabilistic Approach for the Power-reserve Pricing. IEEE Power Engineering Society General Meeting PES 2004, United States: IEEE Xplore.

2013

  • Chapman, A., Verbic, G., Hill, D. (2013). A healthy dose of reality for game-theoretic approaches to residential demand response. Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid (IREP 2013), Piscataway, NJ: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Wang, H., Meng, K., Luo, F., Dong, Z., Verbic, G., Xu, Z., Wong, K. (2013). Demand response through smart home energy management using thermal inertia. Australasian Universities Power Engineering Conference AUPEC 2013, Hobart, Australia: (IEEE) Institute of Electrical and Electronics Engineers.
  • Byrne, C., Verbic, G. (2013). Feasibility of residential battery storage for energy arbitrage. Australasian Universities Power Engineering Conference (AUPEC 2013), Hobart: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]

2012

  • Zertek, A., Verbic, G., Pantos, M. (2012). A Novel Strategy for Variable-Speed Wind Turbines' Participation in Primary Frequency Control. IEEE Transactions on Sustainable Energy, 3(4), 791-799.
  • Taljan, G., Verbic, G., Pantos, M., Sakulin, M., Fickert, L. (2012). Optimal Sizing of Biomass-Fired Organic Rankine Cycle CHP System with Heat Storage. Renewable Energy, 41, 29-38. [More Information]
  • Zertek, A., Verbic, G., Pantos, M. (2012). Optimized Control Approach for Frequency-Control Contribution of Variable Speed Wind Turbines. IET Renewable Power Generation, 6(1), 17-23. [More Information]
  • Hill, D., Liu, T., Verbic, G. (2012). Smart Grids as Distributed Learning Control. 2012 IEEE Power and Energy Society General Meeting (PES-GM), San Diego: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]

2011

  • Taljan, G., Verbic, G., Pantos, M., Sakulin, M., Fickert, L. (2011). Optimal Sizing of Biomass-Fired Organic Rankine Cycle CHP Systems with Heat Storage. International Conference on Clean Electrical Power ICCEP 2011, United States: IEEE Xplore. [More Information]
  • Tischer, H., Verbic, G. (2011). Towards a smart home energy management system - A dynamic programming approach. 2011 IEEE PES Innovative Smart Grid Technologies ISGT Asia Conference, Piscataway, USA: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]

2010

  • Zertek, A., Verbic, G., Pantos, M. (2010). Participation of DFIG Wind Turbines in Frequency Control Ancillary Service by Optimized Rotational Kinetic Energy. 7th International Conference on the European Energy Market EEM 2010, Madrid, Spain: IEEE Xplore. [More Information]

2008

  • Taljan, G., Fowler, M., Canizares, C., Verbic, G. (2008). Hydrogen storage for mixed wind-nuclear power plants in the context of a Hydrogen Economy. International Journal of Hydrogen Energy, 33(17), 4463-4475. [More Information]
  • Taljan, G., Verbic, G., Tomsic, L. (2008). Optimal sizing of generating units - turbine diameter based on transient stability criteria. HYDRO International Conference and Exhibition 2008.
  • Taljan, G., Canizares, C., Fowler, M., Verbic, G. (2008). Study of Mixed Wind-Nuclear-Hydrogen Power Plants. 40th North American Power Symposium NAPS 2008, United States: IEEE Xplore. [More Information]
  • Taljan, G., Canizares, C., Fowler, M., Verbic, G. (2008). The Feasibility of Hydrogen Storage for Mixed Wind-Nuclear Power Plants. IEEE Transactions On Power Systems, 23(3), 1507-1518. [More Information]

2007

  • Tomsic, T., Verbic, G., Gubina, F. (2007). Revision of the underfrequency load-shedding scheme of the Slovenian power system. Electric Power Systems Research, 77(5-6), 494-500. [More Information]

2006

  • Verbic, G., Pantos, M., Gantar, J. (2006). A Novel Principle for Measuring Overfrequency and Frequency Rate of Change. 15th International Conference on Power System Protection PSP 2006.
  • Pantos, M., Verbic, G., Gubina, F. (2006). An improved method for assessing voltage stability based on network decomposition. International Journal of Electrical Power and Energy Systems, 28(5), 324-330. [More Information]
  • Smon, I., Verbic, G., Gubina, F. (2006). Local Voltage-Stability Index Using Tellegen's Theorem. IEEE Transactions On Power Systems, 21(3), 1267-1275. [More Information]
  • Verbic, G., Pantos, M., Gubina, F. (2006). On voltage collapse and apparent-power losses. Electric Power Systems Research, 76, 760-767. [More Information]
  • Verbic, G., Schellenberg, A., Rosehart, W., Canizares, C. (2006). Probabilistic Optimal Power Flow Applications to Electricity Markets. 9th International Conference on Probabilistic Methods Applied to Power Systems PMAPS 2006, United States: IEEE Xplore. [More Information]
  • Verbic, G., Canizares, C. (2006). Probabilistic Optimal Power Flow in Electricity Markets Based on a Two-Point Estimate Method. IEEE Transactions On Power Systems, 21(4), 1883-1893. [More Information]

2005

  • Pantos, M., Verbic, G., Gubina, F. (2005). Modified Topological Generation and Load Distribution Factors. IEEE Transactions On Power Systems, 20(4), 1998-2005. [More Information]

2004

  • Verbic, G., Gubina, F. (2004). A New Concept of Voltage-Collapse Protection Based on Local Phasors. IEEE Transactions on Power Delivery.
  • Verbic, G., Gubina, F. (2004). A novel scheme of local protection against voltage collapse based on the apparent-power losses. International Journal of Electrical Power and Energy Systems, 26(5), 341-347. [More Information]
  • Verbic, G., Gubina, F. (2004). A Simple Probabilistic Approach for the Power-reserve Pricing. IEEE Power Engineering Society General Meeting PES 2004, United States: IEEE Xplore.
  • Verbic, G., Gubina, F. (2004). Cost-Based Models for the Power-Reserve Pricing of Frequency Control. IEEE Transactions On Power Systems, 19(4), 1853-1858. [More Information]

2003

  • Verbic, G., Gubina, F. (2003). Fast voltage-collapse line-protection algorithm based on local phasors. IET Generation, Transmission and Distribution, 150(4), 482-486. [More Information]

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