• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IFAC PapersOnLine >Output-Feedback Nonlinear Adaptive Control Strategy of Three-phase AC/DC Boost Power Converter for On-line UPS Systems
【24h】

Output-Feedback Nonlinear Adaptive Control Strategy of Three-phase AC/DC Boost Power Converter for On-line UPS Systems

机译：在线UPS系统的三相AC / DC Boost功率变换器的输出反馈非线性自适应控制策略

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, the problem of controlling three-phase boost power converter is considered for charging the battery in uninterruptible power supply (UPS) systems. The control objective is twofold: (i) ensuring a satisfactory power factor correction (PFC) at the grid-UPS connection; (ii) guaranteeing a tight regulation of the DC output voltage despite of load uncertain. The considered control problem entails several difficulties including: (i) the numerous state variables that are inaccessible to measurements; (ii) the uncertainty that prevails on some system parameters. The problem is dealt with using a cascade nonlinear adaptive controller that is developed making use of the Lyapunov control design technique. The inner-loop ensures the PFC objective and involves an adaptive observer estimating the grid phase currents, the magnitude of the parameters grid phase voltages and the load resistance. The estimation is only based on the online measurements of DC output voltage. The outer-loop regulates the DC output voltage up to small size ripples.
机译：在本文中，控制不间断电源（UPS）系统中的电池充电时考虑了三相升压功率转换器的控制问题。控制目标是双重的：（i）确保在电网-UPS连接处获得令人满意的功率因数校正（PFC）; （ii）即使负载不确定，也要保证直流输出电压的严格调节。所考虑的控制问题带来了许多困难，其中包括：（i）无法测量的众多状态变量; （ii）在某些系统参数上普遍存在的不确定性。该问题是通过使用Lyapunov控制设计技术开发的级联非线性自适应控制器解决的。内环确保了PFC的目标，并包括一个自适应观测器，用于估计电网相电流，参数电网相电压的大小和负载电阻。该估计仅基于直流输出电压的在线测量。外环将直流输出电压调节到较小的纹波。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号