Das, Dwijasish (Delft University of Technology (TU Delft)), Wageningen, N.A. van (Delft University of Technology (TU Delft)), Rueda, Jose L. (Delft University of Technology), Gonzalez-Longatt, Francisco (Loughborough University)

P-F Stability of 2030 Nordic Power System Due to Non-Synchronous Generation

Scheduled for presentation during the Invited Session "Optimal operation and control in smart grids" (ThuS2T2), Thursday, July 11, 2024, 12:50−13:10, Grand Amphitheater

12th IFAC Symposium on Control of Power & Energy Systems, July 10-12, 2024, Rabat, Morocco

This information is tentative and subject to change. Compiled on January 2, 2025

Abstract

The Nordic Power System is undergoing significant transformation and development in the coming years. A driving factor for this is the increased dependency on renewable energy sources and high voltage direct current transmission (HVDC). Various stability challenges due to the dynamics of reactive power - voltage (Q-V) balancing and active power - frequency (P-f) balancing seep into the system with such rise of non-synchronous generation (NSG). This paper investigates the projected impact of NSGs on the P-f dynamic performance of Nordic power system in 2030. As NSGs are systems with low inertia, power discrepancies lead to larger oscillations, higher Rate of Change of Frequency (RoCoF) and bigger maximum frequency deviation (MFD) values. To adderess these issues, Emulated Inertia (EI) control for wind turbines and Synthetic Inertia (SI) control for VSC-HVDC links are proposed in this paper. The simulation is carried out using DIgSILENT PowerFactory 2022 SP1 simulation software. The results obtained confirm the effectiveness of the proposed EI and SI methods to enhance frequency response and mitigate deviations.