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
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