ZHU Renlong,ZHOU Xiaoping,LUO An,et al.Commutation Failure Mitigation Method Based on Voltage-Time Commutation Area Prediction[J].Automation of Electric Power Systems,2022,46(3):156-163.
ZHU Renlong,ZHOU Xiaoping,LUO An,et al.Commutation Failure Mitigation Method Based on Voltage-Time Commutation Area Prediction[J].Automation of Electric Power Systems,2022,46(3):156-163. DOI: 10.7500/AEPS20210324005.
Commutation Failure Mitigation Method Based on Voltage-Time Commutation Area Prediction
Advanced firing control is an important method to reduce the probability of commutation failure in high voltage direct curren (HVDC) transmission systems. Accurate advanced firing is the key to mitigate commutation failure. According to the theory of commutation voltage-time area
a commutation failure mitigation method based on commutation voltage-time area prediction is proposed. This method not only takes into account the change of DC current after fault
but also indirectly takes into account the change of commutation angle and equivalent commutation reactance after fault through the measurement of commutation area. At the same time
this method has clear physical meaning and does not need to improve the commutation failure mitigation performance through complex parameter tuning. Finally
taking the CIGRE standard model in PSCAD/EMTDC as the test model
the effectiveness of the proposed method is verified under different faults.
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