【摘要】 对一种基于变频调速的电站锅炉联氨自动加药系统的工作原理、系统硬件和ＰＩ参数整定作了具体介绍，讨论了主设备、控制器和变频器存在问题，且提出了改进措施。更多还原

【Abstract】 The operational principle, system hardware and tuning of PI parameters of an automatic diamin dosing system based on variable frequency velocity adjustment for boiler in power station are intro- duced concretely. The existing problems on main equipment, controller and frequency transformer are dicussed and the methods for improvement are stated.更多还原