Design of control system for cylinder valve in hydropower unit based on Siemens S7-300 series programmable logic controller
Wu Yachun1, Xiao Ranping1, Shang Jia2, Wang Yajie1, Jiang Xiaohui1
1. Department of Mechanical and Electrical, College of Science and Technology of China Three Gorges University, Yichang, Hubei 443002; 2. 710 Research Institute of China Shipubuilding Industry Group Co., Ltd, Yichang, Hubei 443000
Abstract：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.
吴雅纯, 肖冉娉, 尚佳, 王雅婕, 蒋小辉. 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[J]. 电气技术, 2020, 21(7): 94-96.
Wu Yachun, Xiao Ranping, Shang Jia, Wang Yajie, Jiang Xiaohui. Design of control system for cylinder valve in hydropower unit based on Siemens S7-300 series programmable logic controller. Electrical Engineering, 2020, 21(7): 94-96.
2020, Vol. 21 
