Comparative Stability of a Voltage-Source Inverter Using a Grid-Following/Grid-Forming Control Strategy for a PV Farm in a Hybrid Renewable-Energy System Fed to a Multimachine Power System Through an HVDC Link

This paper compares the power system stability of using grid-forming (GFM)- and grid-following (GFL)-based control strategies for the DC/AC voltage-source inverter (VSI) of a PV farm (PVF) in a hybrid renewable-energy system (HRES) connected to the IEEE 14-bus multimachine power system (MMPS) throug...

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Bibliographic Details
Published inConference record of the Industry Applications Conference pp. 1 - 8
Main Authors Wang, Li, Liao, Zi-Hao, Li, Guan-Wei, Wang, Yaw-Juen
Format Conference Proceeding
LanguageEnglish
Published IEEE 15.06.2025
Subjects
Eigenvalues and eigenfunctions
Grid forming control
grid-following control
HVDC link
HVDC transmission
Hybrid power systems
modular multilevel converter
multimachine power system
Power system stability
Renewable energy sources
Solar irradiance
stability
Stability analysis
Transient analysis
Voltage control
Wind farms
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Summary:This paper compares the power system stability of using grid-forming (GFM)- and grid-following (GFL)-based control strategies for the DC/AC voltage-source inverter (VSI) of a PV farm (PVF) in a hybrid renewable-energy system (HRES) connected to the IEEE 14-bus multimachine power system (MMPS) through a modular multilevel converter (MMC)-based high-voltage direct current (HVDC) link. The HRES consists of a doubly-fed induction generator (DFIG)-based offshore wind farm (OWF) and PVM with a solar module, a DC/DC boost converter, and a DC/AC VSI. The small-signal stability using root-loci plots under different operating conditions and transient responses subject to a large disturbance using GFL- and GFM-based control strategies for the studied VSI are compared. The simulation results show that the studied system using the GFM-based control strategy performs better than the GFL-based control scheme on the HRES in both small-signal stability and transient responses.
ISSN:2576-702X
DOI:10.1109/IAS62731.2025.11061436