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1·Excitation system faults are main causes of generator electrical emergency.

励磁系统故障仍是发电机组电气故障的主要原因。

2·Experimental plan for unit excitation system was established in this paper.

负责编制了机组励磁系统试验方案。

3·This paper briefs the positive and negative excitation system(PNE)and its controller.

简单介绍了正负励磁系统及其控制系统；

4·The generator excitation system consists of mechanically and electrically coordinated components.

发电机的励磁系统由机械上和电气上协调配合的部分组成。

5·The phase compound excitation system is one of the core components of the modern synchronous generator.

相复励励磁系统是现代同步发电机的核心组成部分。

6·The setting range of no load voltage step response index for self excited shunt excitation system is put forward.

对自并励静止励磁系统发电机空载阶跃指标提出整定范围。

7·This paper deals with the stability improvement of open-loop excitation system by using feedforward compensation control.

本文论述了用前馈补偿控制提高开环励磁系统稳定性问题。

8·The excitation system parameters of large synchronous generator have great effects on modern power system stability studies.

大型同步发电机的励磁系统参数对电力系统稳定研究起着重要的作用。

9·Excitation controller excitation system is an important component part of the safe and stable operation of great significance.

励磁控制器是励磁系统的重要组成部分，对系统的安全稳定运行有着十分重要的意义。

10·Compared with traditional thyristor excitation system, the PWM excitation system using IGBT improved the performance obviously.

通过与传统可控硅励磁系统对比，采用IGBT实现的PWM励磁系统性能明显提高。