本文分析了单闭环控制的同步发电机励磁系统的特点，指出了其存在的问题。
The characteristic of synchronous generator SCR excitation system for single close loop control is analysed and it's fault is pointed out in this paper.
控制系统采用瞬时电压单闭环控制策略，以提高高频链逆变电源的动静态特性。
The single close-loop control method of HFL inverter based on voltage feedback was designed for better performance.
为了满足生产工艺实际需要，针对水处理系统中水泵单耗高、资源浪费等问题，提出了一种用DSP数字信号处理器实现闭环控制的内反馈斩波调速解决方案。
To meet the practical needs of production technics, a solve scheme of inherent feedback chopping speed regulation is put forward by using DSP processor to realize closed loop control.
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