高压电器2024，Vol.60Issue(5)：108-116,9.DOI:10.13296/j.1001-1609.hva.2024.05.014
特高压直流换流变压器分接头自动再同步控制策略
Automatic Re-synchronization Control Strategy of UHVDC Converter Transformer Taps
摘要
Abstract
UHVDC power transmission technology undertakes the important task of long-distance transmission of new energy,which can be a strong support to the'dual Carbon goal'.However,due to the fluctuation of new energy power,the converter transformer taps at the transmission end of the UHVDC transmission system operates frequently,which seriously affects the service life of the converter transformer.For reducing the number of operations of the tap,the mathematical relationship among such key influencing factors as DC transmission current,thyristor firing angle and tap gear are set up in this paper and,on the basis of the analysis of the insufficient existing tap control strategy,a new method of automatic resynchronization control strategy for the taps of pole converter transformers for UHVDC transmission system is proposed.Finally,the Yanhuai UHVDC transmission system is taken as an example,the tradi-tional and improved strategy are compared by mathematical derivation and MATLAB/Simulink simulation.The re-sults show that the proposed strategy can effectively reduce the number of tap operations and assure reliable opera-tion of the UHVDC transmission system.关键词
特高压直流输电/新能源消纳/换流变分接头/优化控制Key words
UHVDC/new energy consumption/converter transformer tap/optimal control引用本文复制引用
时伟光,成小胜,郝成龙,李平伟,赵宇亭,任春光..特高压直流换流变压器分接头自动再同步控制策略[J].高压电器,2024,60(5):108-116,9.基金项目
国网山西省电力公司科技项目(SGSXJX00YMJS2000352). Project Supported by State Grid Shanxi Electric Power Company Science and Technology Project(SGSXJX00YMJS2000352). （SGSXJX00YMJS2000352）
