一种适用于小型水轮机调速器的电液随动系统  

Study of Electro-hydraulic Servo System Suitable for Small Hydro Turbine Governor

作　　者：王印松[1] 宋凯兵 

机构地区：[1]华北电力大学河北省发电过程仿真与优化控制工程技术研究中心,河北保定071003

出　　处：《水力发电》2016年第9期79-82,共4页Water Power

基　　金：国家电网公司科技项目资助(DWJS500060)

摘　　要：针对水轮机调速器电液随动系统存在着结构复杂、体积大、标准化程度不高、可靠性较低和抗污染能力差等问题,提出了一种适用于小型水轮机调速器的电液随动系统。该系统主要由液压标准元件组成,具有结构简单、工作可靠、价格便宜、抗污染能力强等特点;采用Bang-Bang控制和脉宽调制(PWM)控制构成的双模控制算法,算法简单,易于在PLC上实现。实验证明了系统具有良好的动态、稳态性能。In view of the complicated structure, large size, low standardization, low reliability and poor anti-pollution of electro-hydraulic servo system of hydro turbine governor, a kind of electro-hydraulic servo system suitable for small turbine governor servo system is put forward. The system is mainly consisted by standardizated hydraulic components, and has the characteristics of simple structure, reliable operation, low price and strong anti-pollution ability. The system uses a dual mode control algorithm of Bang-Bang control and Pulse Width Modulation （PWM） control, which is simple and easy to be realized in PLC. The experiments demonstrate that the system has good dynamic and steady performance.

关 键 词：水轮机调速器 电液随动系统 BANG-BANG控制 PWM控制 PLC 

分 类 号：TM312[电气工程—电机]