Articles with "hvdc system" as a keyword



Time-Varying Resistance Optimization for the Resistive Type Superconducting Fault Current Limiter Applied in VSC-HVDC System

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Published in 2021 at "Journal of Superconductivity and Novel Magnetism"

DOI: 10.1007/s10948-021-05807-z

Abstract: When short-circuit fault occurs in a voltage source converter–based high-voltage direct current (VSC-HVDC) transmission system, the fault current curve is much more complex than conventional AC power grid. The high-voltage DC circuit breaker with large… read more here.

Keywords: vsc hvdc; fault current; hvdc system; fault ... See more keywords

VSC-HVDC system robust stability analysis based on a modified mixed small gain and passivity theorem

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Published in 2017 at "IFAC-PapersOnLine"

DOI: 10.1016/j.ifacol.2017.08.003

Abstract: In a VSC-HVDC system, when the input power to the converter is controlled to a positive constant, the converter acts a differential negative resistance — Po/i2 0, which may cause instability in case of a… read more here.

Keywords: robust stability; system; modified mixed; gain ... See more keywords

An Analytical Method to Determine the Optimal Switching of Modular Multilevel Converter in HVDC System

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Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2020.3047133

Abstract: The lifetime of the submodules (SMs) in a modular multilevel converter (MMC) is significantly impacted by its switching frequency. In this work, the determination of the switching frequency, to be applied to the nearest level… read more here.

Keywords: converter; hvdc system; method; modular multilevel ... See more keywords

A Comprehensive AC-Side Single-Line-to-Ground Fault Ride Through Strategy of an MMC-Based HVDC System

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Published in 2018 at "IEEE Journal of Emerging and Selected Topics in Power Electronics"

DOI: 10.1109/jestpe.2018.2797934

Abstract: When a single-line-to-ground (SLG) fault occurs on the ac side of the modular multilevel converter (MMC) in an high-voltage direct-current transmission (HVDC) system, it results in the ac-side voltage sag and leads to an instantaneous… read more here.

Keywords: fault; system; line; hvdc system ... See more keywords

Study of the Application of Active Saturated Iron-Core Superconductive Fault Current Limiters in the VSC-HVDC System

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Published in 2018 at "IEEE Transactions on Applied Superconductivity"

DOI: 10.1109/tasc.2018.2824840

Abstract: As a typical inductive type superconductive fault current limiter (SFCL), the saturated iron-core SFCL (SI-SFCL) is very important to the safety of the VSC-HVDC system. Considering that the high-induced voltage of the superconductive winding may… read more here.

Keywords: hvdc system; fault current; vsc hvdc; sfcl ... See more keywords

Stability Analysis of a Hybrid Multi-Infeed HVdc System Connected Between Two Offshore Wind Farms and Two Power Grids

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Published in 2017 at "IEEE Transactions on Industry Applications"

DOI: 10.1109/tia.2017.2672669

Abstract: This paper presents the stability simulation results of two equivalent aggregated offshore wind farms (OWFs) based on doubly-fed induction generator fed to two power grids through a hybrid multi-infeed high voltage dc (HVdc) system. The… read more here.

Keywords: offshore wind; system; multi infeed; hvdc ... See more keywords

An Economical Concentrated DC Chopper Based on Thyristors With Resonant Self-Turn-Off Ability for Offshore Wind VSC-HVdc System

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Published in 2024 at "IEEE Transactions on Industrial Electronics"

DOI: 10.1109/tie.2023.3323693

Abstract: The dc chopper (DCC) is crucial for the offshore wind voltage sourced converter-based high-voltage direct current (VSC-HVdc) system, typically utilizing expensive fully controlled devices. In this letter, an economical concentrated DCC based on thyristors with… read more here.

Keywords: thyristors resonant; based thyristors; offshore wind; hvdc system ... See more keywords

A Virtual Phase-Lead Impedance Stability Control Strategy for the Maritime VSC–HVDC System

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Published in 2018 at "IEEE Transactions on Industrial Informatics"

DOI: 10.1109/tii.2018.2804670

Abstract: In the maritime VSC-HVDC system supplying power to passive network on the island, the dc side of the system is prone to oscillation and even instability, which is resulted from the negative incremental input resistance… read more here.

Keywords: hvdc system; control; vsc hvdc; impedance ... See more keywords

Transient-Voltage-Based Protection Scheme for DC Line Faults in the Multiterminal VSC-HVDC System

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Published in 2017 at "IEEE Transactions on Power Delivery"

DOI: 10.1109/tpwrd.2016.2608986

Abstract: DC line faults are major issues for a multiterminal high-voltage direct current (HVDC) system based on voltage-source converter (VSC). The fault current increases quickly along with a large peak, and complete isolation of the faulted… read more here.

Keywords: hvdc system; protection scheme; protection; line ... See more keywords

Robust Adaptive Control of MMC-HVDC System Integrating Offshore Wind Farms Using Cascade High-Gain State and Perturbation Observer

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Published in 2025 at "IEEE Transactions on Power Delivery"

DOI: 10.1109/tpwrd.2025.3555309

Abstract: This paper proposes a novel cascade high-gain state and perturbation observer (CHGSPO)-based robust adaptive control (RAC) strategy of modular multi-level converter based high voltage direct current (MMC-HVDC) system integrating offshore wind farms. The sending-end MMC… read more here.

Keywords: mmc hvdc; control; hvdc system; mmc ... See more keywords

A Novel Transient Analysis of Multiterminal VSC‐HVDC System Incorporating Superconducting Fault Current Limiter

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Published in 2024 at "International Transactions on Electrical Energy Systems"

DOI: 10.1155/2024/5549066

Abstract: Power transmission using a voltage source converter‐ (VSC‐) based high‐voltage direct current (HVDC) system offers autonomous control of real and reactive power, constant DC voltage polarity, and bidirectional power flow. This helps to realize the… read more here.

Keywords: system; vsc; hvdc system; multiterminal vsc ... See more keywords