Cybersecurity and Protection Strategies for Inverter-Based Resource Integration

dc.contributor.authorLarsen, Caroline Elisabethen
dc.contributor.committeechairMehrizi-Sani, Alien
dc.contributor.committeememberCenteno, Virgilio A.en
dc.contributor.committeememberMili, Lamine M.en
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2025-05-31T08:00:38Zen
dc.date.available2025-05-31T08:00:38Zen
dc.date.issued2025-05-30en
dc.description.abstractThere is a need for new cybersecurity and protection techniques to ensure the reliability of power systems with inverter-based resources (IBR). Communication-based control techniques enhance the performance of IBR-dominated power systems, but they increase the risk of cyberattacks. Moreover, the unconventional fault behavior of IBRs can cause traditional protection schemes to misoperate. These difficulties are compounded by the black-box nature of IBR controllers, which makes it challenging to develop comprehensive cybersecurity and protection strategies. In this work, an algorithm is developed to detect and mitigate cyberattacks on coordinated inverter control without accessing internal IBR parameters. Additionally, an adaptive fault detection algorithm is developed based on the standardized fault ride through (FRT) behavior of IBRs and the steady state behavior of IBR controllers. To enable the algorithms to be validated on realistic communication and protection devices, a real-time simulation model of a generic IBR controller is developed.en
dc.description.abstractgeneralResources that interface with the electrical grid through inverters, such as wind and solar energy, are known as inverter-based resources (IBR). The increasing amount of IBRs in the grid creates challenges for power system operation. Communication networks are essential for monitoring and controlling IBRs in the grid, but they also expose devices in the power system to cyberattacks. Additionally, the behavioral characteristics of IBRs differ from traditional generator-based resources, which makes it more difficult to detect physical faults (such as line outages) in the power system. In this work, an algorithm is developed to detect and prevent cyberattacks on the communication networks of IBRs in a grid. Additionally, an algorithm is developed to take advantage of the unique behavioral characteristics of IBRs to detect faults. Lastly, a simulation model is developed to enable real-time simulation of small IBR-based power systems alongside physical communication and protection devices.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:43711en
dc.identifier.urihttps://hdl.handle.net/10919/134942en
dc.language.isoenen
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectcybersecurityen
dc.subjectinverteren
dc.subjectmicrogriden
dc.subjectprotectionen
dc.subjectreal-time simulationen
dc.titleCybersecurity and Protection Strategies for Inverter-Based Resource Integrationen
dc.typeThesisen
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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