Improved Frequency Stability Support for Low-Inertia Power Systems
Pysyvä osoite
Kuvaus
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In the renewable generation -based low-inertia power systems, frequency stability support from different types and sizes of inverter-based distributed energy resources (DERs) is of major importance. Various grid-following and -forming inverter synchronization and control methods will affect the frequency stability in different ways. In this paper, frequency stability supporting improved active power response of inverter-connected DER having synchronization based on universal frequency locked loop (U-FLL) is presented. U-FLL-based synchronization as well as active power–frequency (Pf) -droop control is further modified to achieve faster response and better frequency stability support from the studied battery energy storage system (BESS). In addition, this paper shows frequency stability comparison of U-FLL-based BESS and four grid-forming (GFM) control methods on PV-based DER unit. In the case studies with PSCAD simulation software, simplified hybrid power system model with synchronous generation and inverter-based resources (IBRs) are used to study the effect of IBRs i.e. BESS or PV on frequency stability after a load increase.
Emojulkaisu
2025 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)
ISBN
979-8-3315-2503-3
ISSN
2165-4824
2165-4816
2165-4816
Aihealue
Kausijulkaisu
IEEE PES Innovative Smart Grid Technologies Conference Europe
OKM-julkaisutyyppi
A4 Vertaisarvioitu artikkeli konferenssijulkaisussa