Analysis of the impact of PLLs on stable power swings in presence of Grid Following PV

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2025-03-18 DOI:10.1016/j.epsr.2025.111593

Meenu Jayamohan , H.R. Sai Kiran Pandit , Sarasij Das , Sukumar Brahma

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引用次数: 0

Abstract

The transition from Synchronous Generators (SGs) to Inverter-Based Resources (IBRs) has resulted in a wide array of problems in power systems. The dynamics of IBRs differ from the dynamics of SGs, which has impacted the impedance (

Z

) trajectories seen by the distance relays during stable and unstable power swings. This study analyzes the impacts of different types of Phase-Locked Loops (PLLs) of Grid Following (GFOL) photovoltaic (PV) inverters on the magnitude of the rate of change of positive sequence impedance used for detecting Stable Power Swings (SPS). The variations of

Z

trajectories with respect to the changes in control parameters of Synchronous Reference Frame PLL with additional Low pass filter (LSRF PLL), Multiple Reference Frame (MRF) PLL, and Dual Second-Order Generalized Integrator (DSOGI) PLL are also studied. The impacts of varying penetration of PV and relay locations are also investigated. A modified IEEE-39 bus system with GFOL PV is utilized for the studies. The PVs adhere to IEEE Standard

2800 - 2022

and have Low Voltage Ride-Through (LVRT)/ High Voltage Ride-Through (HVRT) and dynamic voltage support capabilities. This study shows that the PLL parameters and bandwidth influence the operation/maloperation of the relays during SPS. Time-domain simulation results from PSCAD are validated with theoretical analysis.

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.