基于西门子S7-300系列可编程逻辑控制器的水电机组圆筒阀控制系统设计  

Design of control system for cylinder valve in hydropower unit based on Siemens S7-300 series programmable logic controller

作　　者：吴雅纯 肖冉娉 尚佳 王雅婕 蒋小辉[1] Wu Yachun;Xiao Ranping;Shang Jia;Wang Yajie;Jiang Xiaohui(Department of Mechanical and Electrical,College of Science and Technology of China Three Gorges University,Yichang,Hubei 443002;710 Research Institute of China Shipubuilding Industry Group Co.,Ltd,Yichang,Hubei 443000)

机构地区：[1]三峡大学科技学院机电系,湖北宜昌443002 [2]中国船舶重工集团有限公司第七一○研究所,湖北宜昌443000

出　　处：《电气技术》2020年第7期94-96,共3页Electrical Engineering

摘　　要：随着我国高水头、大容量水电机组逐步投产与运行,圆筒阀在防止高压漏水,保护导叶及轴承方面起着重大作用。圆筒阀自身质量大、运行精度及同步要求高,对其控制系统有着更高的要求。本文以电液比例阀驱动圆筒阀的接力器,以西门子S7-315作为控制器,采用基于比例积分微分的闭环控制实现圆筒阀起停及紧急下落,满足水电厂的安全运行要求。With the operation of high-head and large-capacity hydropower units,the cylinder valve plays a major role in preventing water leakage because of high pressure and protecting the vanes and bearings.The control system put forward higher requirements,on account of high quality,operation precision and synchronization requirements on cylinder valve.In this paper,the electro-hydraulic proportional valve drives the relay device of the cylinder valve.Based on PID closed-loop control,the relay device can turn on,turn off the cylinder valve,and meet the safe operation requirements of hydropower plant,with Siemens S7-315PLC being the controller.

关 键 词：圆筒阀 比例阀 闭环控制 

分 类 号：TV736[水利工程—水利水电工程]