PWM方式控制的水轮机电液调速器研究  

Research of Hydroturbine Electro-Hydraulic Governor Controlled by PWM Method

作　　者：张忠南[1] 林义忠[1] 吉慧丹[1] 张海明[1] 

机构地区：[1]广西大学机械工程学院,广西南宁530004

出　　处：《机床与液压》2010年第5期35-37,共3页Machine Tool & Hydraulics

基　　金：广西大学科研基金项目(X061179);广西制造系统与先进制造技术重点实验室课题(桂科能0842006-002-Z)

摘　　要：设计并开发了一种基于PLC并采用PID控制算法的水轮机电液调速器。该调速器的电液随动系统以高速开关阀为控制核心,采用PWM脉宽调制方法进行控制。并建立水轮机调速系统的数学模型,在MATLAB SimuLink环境下进行仿真。在实验室进行空载状态下的静特性试验及随动系统扰动试验,证明了系统在此工况下具有较优的控制性能。A electro-hydraulic governor for hydroturbine was designed by applying PLC and PID algorithm. The electro-hydraulic servo system of this governor is driven by high speed on-off valve, it uses PWM control method. The mathematical model of hydrotur- bine governor system was established and simulated with Matlab SimuLink software. The result of static characteristic test and disturbance test on servo system in laboratory demonstrates that this system has excellent static and dynamic performance in no-load state.

关 键 词：水轮机调速器 PWM 高速开关阀 PLC 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]