摘要
提出了一种消除SAR载荷母线电流脉动的技术,采用PVAC控制策略,在二次电源内部将系统固有的能量波动进行有效抑制,既能提供负载工作所需的瞬态能量,又能有效消除不调节母线的电流脉动。所研制的样机已与用户的组件联试成功,实测母线电流脉动幅值最低仅为额定电流的5%,母线电流几乎为纯直流。
A technology of eliminating bus current ripple in SAR payload was proposed. A PACV control strategy is used to well control the energy in power supply. It can provide transient energy for the load as well as eliminate bus current ripple.The prototype is verified by the combined testing with user＇s module.And the measured ripple current is only five per-cent of the rated current, and that means the bus current is almost pure direct current.
作者
吴建超
王俊琦
纪枭雄
WU Jian- chao WANG Jun- qi JI Xiao-xiong(Beijing Spacecrafts,Beijing 100081,China)
出处
《空间电子技术》
2017年第2期62-69,共8页
Space Electronic Technology
关键词
高轨SAR
不调节母线
电流脉动
PVAC控制策略
High-orbit synthetic aperture radar
Nonadjustable bus current
Current ripple
Peak voltage average current control strategy
