Comparison of UPFC, SVC and STATCOM in Improving Commutation Failure Immunity of LCC-HVDC Systems
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DOI: 10.1109/access.2020.3011113
Abstract: This paper compares the performance of unified power flow controllers (UPFCs), static var compensators (SVCs), and static compensators (STATCOMs) in commutation failure immunity (CFI) improvement of line-commutated converter-based high-voltage direct-current transmission (LCC-HVDC) systems. Theoretical analysis… read more here.
Keywords: commutation failure; hvdc systems; lcc hvdc; failure immunity ... See more keywords
Transient Voltage Control of Sending-End Wind Farm Using a Synchronous Condenser Under Commutation Failure of HVDC Transmission System
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DOI: 10.1109/access.2021.3070979
Abstract: When the large-scale wind power is sent out through the high voltage direct current (HVDC) transmission system and a DC commutation failure occurs, the voltage of AC bus at the sending end decreases first and… read more here.
Keywords: voltage; commutation failure; wind; sending end ... See more keywords
Adaptive CFPREV Control for Cascading Commutation Failure Mitigation Considering Reactive Power Interaction
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DOI: 10.1109/access.2024.3471193
Abstract: Advancing the firing angle implemented by the commutation failure prevention (CFPREV) is an effective method for commutation failure (CF), but the increase of reactive power consumption of local inverter would cause adverse influence on voltage… read more here.
Keywords: reactive power; cfprev; control; power interaction ... See more keywords
Mitigation Strategy of Commutation Failure Based on Reactive Power Feedback Control in the Hybrid Cascaded HVDC System
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DOI: 10.1109/tpwrd.2024.3389729
Abstract: The hybrid cascaded (HC) LCC-MMC HVDC scheme, wherein the LCC serves as the rectifier, and a single LCC is connected in series with multiple MMCs in parallel as the inverter, amalgamates the merits of both… read more here.
Keywords: system; control; hybrid cascaded; hvdc ... See more keywords
Series Voltage Conditioner (SeVC) to Mitigate Commutation Failure in HVDC-LCC Systems
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DOI: 10.1109/tpwrd.2024.3399692
Abstract: Long-distance HVDC-LCC (High Voltage DC - Line Commutated Converter) transmission utilizes thyristor-based converters and offers advantages such as high efficiency and low cost compared to AC transmission. However, it also suffers from drawbacks such as… read more here.
Keywords: hvdc lcc; hvdc; commutation failure; series voltage ... See more keywords
Reactive Power Control Strategy for Inhibiting Transient Overvoltage Caused by Commutation Failure
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DOI: 10.1109/tpwrs.2021.3063276
Abstract: The commutation failure (CF) is the most common fault in line-commutated high voltage direct current (LCC-HVDC) systems that may lead to the transient overvoltage in the sending-side system. In the worst condition, the CF may… read more here.
Keywords: overvoltage; commutation failure; overvoltage caused; reactive power ... See more keywords
A Quantitative Index to Evaluate the Commutation Failure Probability of LCC-HVDC with a Synchronous Condenser
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DOI: 10.3390/app9050925
Abstract: Since thyristor cannot turn off automatically, line commutated converter based high voltage direct current (LCC-HVDC) will inevitably fail to commutate and therefore auxiliary controls or voltage control devices are needed to improve the commutation failure… read more here.
Keywords: index; commutation failure; commutation; lcc hvdc ... See more keywords
Research on Dynamic Reactive Power Compensation Scheme for Inhibiting Subsequent Commutation Failure of MIDC
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DOI: 10.3390/su13147829
Abstract: Commutation failure at the inverter side of an MIDC (multi-infeed HVDC) is usually caused by AC system faults. Suppose the converter bus voltage cannot recover to the normal operation level in time: in that case,… read more here.
Keywords: commutation; dynamic reactive; scheme; commutation failure ... See more keywords