电工技术学报2018，Vol.33Issue(12)：2767-2776,10.DOI:10.19595/j.cnki.1000-6753.tces.170241
差接三角形12脉自耦变压整流器调压技术
Voltage Regulation Technology of Delta-Connected 12-Pulse Auto-Transformer Rectifier
摘要
Abstract
This paper studied on voltage regulation technology of 12-pulse auto-transformer rectifier unit (ATRU), and presented a delta-connected structure that achieved a wide range of ATRU output voltage. By using middle taps in primary winding and setting the number of winding precisely, auto-transformer outputs two groups of three-phase voltage vector with 30° phase difference. These two three-phase voltages converted into DC voltage through two rectifier bridges. ATRU output voltage could be regulated by changing the number and configuration of auto-transformer winding. In this paper, the turn ratio of winding was deduced and expressed by voltage ratio of auto-transformer. Further, the expressions of input current, auto-transformer kilovoltampere rating were calculated and validated by simulations. The changes of kilovolt ampere rating with different voltage ratios are analyzed. The experiment of a principle prototype was carried out to verify the correctness of the design analysis.关键词
多脉冲整流/自耦变压器/电压调节/等效容量Key words
Multi-pulse rectifier/auto-transformer/voltage regulation/kilovolt ampere rating分类
信息技术与安全科学引用本文复制引用
姜帆,葛红娟,李男,杨光,周洁敏..差接三角形12脉自耦变压整流器调压技术[J].电工技术学报,2018,33(12):2767-2776,10.基金项目
南京航空航天大学研究生创新基地(实验室)开放基金项目资助(kfjj20160701). （实验室）
