Seminars run by PhD students and postdocs with the Control and Power Group

In these talks, an invited speaker presents their work on a relevant topic (preferably in control and power) consisting of a 20-minute presentation followed by a 10-minute discussion. The content of the talks can be

• conference contributions,
• initial research proposals,
• preparation for Early Stage Assessment/Late Stage Review, or
• tutorials on topics of the speaker's expertise.

After the talk, the participants can enjoy coffee and snacks (funded by the group) together in the Faraday Cage on EEE Level 6 and continue the discussion.

The CAP Research Roulette is open to everyone in the Control and Power Group. MSc students from Control Systems and Future Power Network Courses, who are willing to continue pursuing an academic career, are also strongly encouraged to participate.

Contacts: Hanqing Zhang (Control talks), Yanshu Niu (Power talks)

Upcoming Talk 

Title: Stability Assessment Benchmark System Model

Speaker: Ali Arjomandi Nezhad 

Venue: EENG 909B

Date and time: Wednesday, 09/08/2023, 14:15-15:15 

Abstract: The main objective of the deliverable is to develop an open-source low inertia test system for stability analysis. There are several benchmark models in the literature. However, they either model the converters' behaviour for specific phenomena, or they lack modelling details of current saturation. To the best of our knowledge, this deliverable models, for the first time, the details of converters' behavior in a wide range of time scales. This includes the current controller, voltage controller, Phased Locked Loop, Active Power Control, and Secondary Frequency-Power controller, which range from the fastest to the slowest controllers. Additionally, the modelling also incorporates the current saturation, which shapes the behaviour of converters during big disturbances. 
 
The developed system is the modified IEEE fourteen-buses system. All resources of the original system have been replaced by renewable resources, which are either grid-forming or grid-following. All control loops of grid-forming and grid-following resources in addition to the secondary frequency control are simulated in the model. The model is simulated using Simulink/MATLAB software. The results of case studies suggest that the model can be used for various stability analysis. 

Biography: Ali Arjomandi Nezhad received his B.Sc. degree from Amirkabir University of Technology, Tehran, in 2016 and his M.Sc. from Sharif University of Technology, Tehran in 2018. He is currently a Marie Curie Early Stage Researcher, funded by InnoCyPES project, and a PhD student at Imperial College London, UK. His research focus is transient stability assessment and enhancement of Inverter-Based Resource (IBR) dominant power systems.