The judgement of simultaneous commutation failure in HVDC about hierarchical connection to AC grid

2017 2nd International Seminar on Advances in Materials Science and Engineering

Li, Ming^1 ; Song, Xinli^2 ; Huang, Daoshan^3 ; Liu, Wenzhuo^2 ; Zhao, Shutao^1 ; Ye, Xiaohui^2 ; Meng, Hang^1

North China Electric Power University, Baoding

071003, China^1

China Electric Power Research Institute, Haidian District Beijing

100192, China^2

State Gride Fu Jian Electric Power Research Institute Company, China^3

关键词: AC-grid;    Access system;    Bonneville power administrations;    Commutation failure;    Connection mode;    East China power grid;    Voltage drop;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012041/pdf
DOI  :  10.1088/1757-899X/231/1/012041

来源: IOP

【 摘 要 】

The hierarchical connection to AC grid at inverter sides in UHVDC has been take in several projects. This paper introduced the frame of the connection mode in hierarchical access system and compared it with the traditional one at the case of HVDC-Cigre. Then the criterion of commutation failure according to the same valves current was deduced. In order to verify the accuracy of the criterion, this paper used PSD-BPA (Bonneville Power Administration) to simulate the setting voltage drop in the East China power grid and certified the correctness of the formula.