Impact of Short-Circuit Ratio and Phase-Locked-Loop Parameters on the Small-Signal Behavior of a VSC-HVDC Converter

By J. Zhou, Hui Ding, Shengtao Fan, Yi Zhang, A. Gole. IEEE Transactions on Power Delivery, 2014

637 citations recorded by the source corpus.

Subfields: Control and Systems Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/bddd4cb0fdbb9f6e344473c5aee4553e1b36fe2a

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Citations in the corpus

Analysis and Performance Enhancement of Vector-Controlled VSC in HVDC Links Connected to Very Weak Grids (2017, methodology): “The authors of [10] used only the PLL parameters to enhance the overall converter performance and stability, significantly decreasing the PLL bandwidth to prevent its interaction with other modes of the system.”
An Overview of Assessment Methods for Synchronization Stability of Grid-Connected Converters Under Severe Symmetrical Grid Faults (2019, positive): “For instance, it is described in [53] that for very weak connections, the power transfer capability is signiﬁcantly reduced and the proportional gain of the PLL should be reduced to avoid instability.”
Definition and Classification of Power System Stability – Revisited & Extended (2021, positive): “In this case, system stability is mainly affected by the tuning of the outer loop parameters and the response time of the PLL [90], particularly at low SCR [89].”
Modeling Type-4 Wind in Weak Grids (2019, methodology): “References [5], [9] examined stability issues of a VSC with weak grid interconnection.”
Power System Stability With a High Penetration of Inverter-Based Resources (2023, background): “A particular problem has been recognized of instability in phase-locked loops (PLLs) of grid-following (GFL) inverters in weak grids [13], [14].”
Current Limiting Control With Enhanced Dynamics of Grid-Forming Converters During Fault Conditions (2020, background): “However, as the scheme is largely dependent on the assumption of a stiff voltage at the point of connection, this synchronization unit is shown to cause low-frequency oscillations and loss of synchronization during weak-grid and grid fault conditions [3]–[5].”
Grid-Synchronization Stability of Converter-Based Resources—An Overview (2020, background): “Therefore, both the high PLL bandwidth and the low SCR of the grid can deteriorate the synchronization stability of grid-following converters [40].”
DC-Bus Voltage Control Stability Affected by AC-Bus Voltage Control in VSCs Connected to Weak AC Grids (2016, background): “A similar conclusion is drawn in [19] that slowing the PLL response could improve VSC stability and increase power transfer capability in very weak grid.”
Harmonic Stability in Power Electronic-Based Power Systems: Concept, Modeling, and Analysis (2019, background): “The two abnormal harmonics are at the frequencies above and below the fundamental frequency, which indicate the sideband oscillations of the fundamental frequency: f1±fdq, where fdq is the PLL-induced oscillation frequency in the dq-frame [12].”
Robust Vector Control of a Very Weak-Grid-Connected Voltage-Source Converter Considering the Phase-Locked Loop Dynamics (2017, background): “The study in [10] suggested a large reduction in the PLL gains to reduce its negative impact.”
Large Signal Synchronizing Instability of PLL-Based VSC Connected to Weak AC Grid (2019, positive): “In [8], small signal behavior of VSC-HVdc converter under short circuit ratio ac grid is studied”
Harmonic Instability in MMC-HVDC Converters Resulting From Internal Dynamics (2016, background): “It should be stressed that the PLL bandwidth may affect external modes, such as the paper in [19], but the focus of the paper is the internal modes, so we did not discuss about the external modes in this paper.”