Methodologies to analyze resonance stability in power systems with high penetration of converter-interfaced generation

• Grant number: 23/02181-4
• Support Opportunities: Scholarships abroad - Research
• Start date: September 01, 2023
• End date: August 31, 2024
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Ahda Pionkoski Grilo Pavani
• Grantee: Ahda Pionkoski Grilo Pavani
• Host Investigator: Jean Mahseredjian
• Host Institution: Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
• Institution abroad: École Polytechnique de Montréal, Canada
• Associated research grant: 18/20104-9 - Wide-area monitoring, dynamic security analysis and control of modern power system networks, AP.TEM

Abstract

The connection of wind and solar generation to power systems poses challenges to maintain the power system dynamic security. Events reported in different power systems are raising concerns related to the sub-synchronous resonance due to interactions of control loops of the converters employed in wind and/or solar power plants with elements of the power grid. The analysis of this phenomenon requires detailed models of the system and of the power plants, including not only the converter and plant level control parameters but also the analysis of operating conditions and possible grid configurations. Moreover, typically the analyses of this phenomenon are performed using electromagnetic (EMT) type simulations, which presents a high computational burden. As the sub-synchronous resonance due to converter-interfaced generation is a relatively recent phenomenon, the current methods still require improvement to be used in bulk power systems or in systems with multi-parallel converter-based plants connected at the same point. In this sense, this research proposal has the objective of developing methodologies to identify the risk of sub-synchronous resonance in power systems with high penetration of wind and solar generation, for planning or real time operation applications. The project will be developed in the research laboratory of Prof. Jean Mahseredjian. His research team is working on methods for the identification of sub-synchronous resonance caused by interaction of the system with wind and solar power plants and has tradition in EMT-type models of wind and solar power plants. (AU)