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作 者:汪宇 龙根 邓珊 WANG Yu;LONG Gen;DENG Shan(The 722 Research Institute of CSIC,Wuhan 430079,China)
机构地区:[1]中国船舶重工集团公司第七二二研究所
出 处:《通信电源技术》2019年第6期25-26,共2页Telecom Power Technology
摘 要:极低频电源逆变侧产生的低频谐波分量难以被滤除,低频谐波分量将渗透直流滤波网络向整流侧和电网传导,造成整流输出端电感电流波动,并在网侧电流基波和特征次谐波附近产生低频相关的边带谐波。为改善现有极低频电源电磁兼容性,提出将有源前端代替基于晶闸管的三相可控整流电路应用于极低频电源,并探析有源前端控制策略,采用单位功率因数控制策略进行了仿真研究。It is difficult to filter the low-frequency harmonic components generated from the inverter side of the extremely low-frequency power supply. The low-frequency harmonic component conducts the osmotic DC filter network to the rectifier side and the power grid,causing the inductive current fluctuation at the rectification output end,and the lowfrequency related sideband harmonics are generated near the current fundamental wave and characteristic harmonics on the network side. In order to improve the electromagnetic compatibility of the existing extremely low-frequency power supply, this paper proposes to apply the active front end instead of the thyristor based three-phase controllable rectifier circuit to the extremely low-frequency power supply.
分 类 号:TN86[电子电信—信息与通信工程]
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