Prof. Yusheng Xue

TBA

Prof. Gerard Ledwich

The developments in communications and new control tools open many opportunities for power systems in transmission and distribution. These address old issues as well as inverter dynamics.
Transmission
Phasor measurement systems permit a wide overview of the state of a system. For the Australian system we have found that it behaves as a 5 area network of equivalent generators. Typically key bus angles will be measured and communications to send this area aggregate angle to controllers. Analysis has shown that controls of inverters and customer response based on the angle of the area equivalent can significantly enhance the coherence for both large and small disturbances. As the amount of renewables in the network increase there is a risk of oscillations due on inverters. The risk is for both grid forming (voltage feedback) and grid following inverters(current feedback). The use of current and voltage state feedback and the reference to the area angle enhances performance.
Distribution
Identification of the Thevenin impedance at the point of connection of each inverter can enhance performance. Controls for engagement of customer loads and batteries can be locally modified to maintain loading and voltage constraints. A key lack of visibility in distribution for most loads has been in the low voltage segment. Continuous state estimation using limited measurements can infer injection currents and voltage profiles based on knowledge of system impedances. Where the impedances are uncertain, an identification stage alternating with state estimation can refine both impedance and customer state. When controlling customer loads/batteries there is a strong benefit for broadcast to all loads in an area with delays less than 100mS.
Markets
One proposed solution to balancing supply and demand is to have an automatic real time distribution market giving power balance within network constraints. The adjacency process passes proposed prices down and aggregated demand up the feeder giving fast convergence. This is based on communications to adjacent customers. The response follows customer constraints. For system emergencies using fast response needs pre-arranged contracts.

Prof. Jing Qiu

The rapid growth of electric vehicles and distributed low-carbon resources is creating new challenges for distribution-system resilience, voltage security, and operational flexibility in modern smart grids. This talk presents the planning and integration of a mobile energy support system, with particular emphasis on multi-robot adaptive charging networks as flexible and intelligent support resources. First, a resilience-oriented planning framework is developed by coupling transportation networks, electric-vehicle behavioral modelling, and distribution-system analysis. A dual-mode dispatch strategy is proposed to enable mobile charging units to operate economically under normal conditions while delivering resilience-prioritized support during emergency situations. In addition, a voltage-stability-index-based resilience indicator is introduced to quantify system stress and guide adaptive task allocation. Second, the presentation extends from system planning to grid integration through a hierarchical framework for smart-grid voltage regulation. Within this framework, mobile charging robots are coordinated with conventional utility devices and fast reactive-power support resources through a three-level architecture, enabling the integrated realization of vehicle-to-vehicle service, vehicle-to-grid support, and minute-scale voltage regulation. Overall, this talk presents a unified framework for the planning, coordination, and intelligent integration of mobile energy support systems in future EV-dominated smart grids.

Dr. Guo Chen

The ongoing transition toward renewable-dominated power grids is fundamentally transforming the architecture and operation of modern power systems. As renewable energy resources become increasingly integrated through advanced digital control, communication, and automation technologies, the cyberattack surface of power grids continues to expand, posing significant challenges to system security, reliability, and resilience. This seminar presents recent research on the cybersecurity of renewable-dominated power grids, with a focus on the emerging vulnerabilities associated with highly digitalized and decentralized energy systems. Representative cyber threats—including false data injection, denial-of-service attacks on distributed energy resources and cloud-based energy management platforms, inverter parameter manipulation, and GPS spoofing—are discussed to demonstrate their impacts on grid operation and system stability. The seminar further reviews current industrial practices, regulatory frameworks, and emerging cybersecurity standards, highlighting their limitations in addressing the unique characteristics of renewable-dominated power systems. Finally, key research challenges and future directions are outlined to advance cyber-resilient power system design and support the secure, reliable, and sustainable transition to future energy systems.