Mechanism Analysis and Prevention Methods of Commutation Failure in LCC-HVDC Transmission System

2019 ◽  
Author(s):  
Jinzhao Song ◽  
Yongli Li ◽  
Liang Zeng ◽  
Yunke Zhang ◽  
Zihe Yang
Keyword(s):  
Transmission System ◽  
Mechanism Analysis ◽  
Hvdc Transmission ◽  
Commutation Failure ◽  
Prevention Methods

Commutation failure suppression strategy of HVDC transmission system based on deep double Q-Network

2021 ◽  
Author(s):  
Haidong Huang ◽  
Xindong Li ◽  
Xiaofan Hou ◽  
Daojun Zha ◽  
Wei Dai ◽  
...  
Keyword(s):  
Transmission System ◽  
Hvdc Transmission ◽  
Commutation Failure ◽  
Suppression Strategy

Simulation Study on Anomalous Commutation Failure in Multi-Infeed HVDC Systems

2014 ◽  
Vol 1008-1009 ◽  
pp. 450-453
Author(s):  
Hong Wei Li ◽  
Gan Rong Peng
Keyword(s):  
Fourier Analysis ◽  
Simulation Study ◽  
Transmission System ◽  
Hvdc Transmission ◽  
Failure Theory ◽  
Commutation Failure ◽  
Low Order

Commutation failure theory in HVDC transmission system is proposed and its reason is analyzed. Anomalous commutation failure phenomenon related to concurrent CF or successive CF in multi-infeed HVDC transmission system is presented. Six kinds of ac system strength are used in simulating the anomalous commutation failure, and the results show that this phenomenon is more and more serious at first as the system strength increases, and then become less serious as the strength becomes stronger. The reason of anomalous CF is found when analyzing phase A voltage with Fourier analysis in one period after fault, that is because of the major dc components and the low-order harmonics existing in voltage waves.

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