摘要
Abstract
Aiming at the problems existing in the operation of sluice projects,such as the inability to accurately monitor gate displacement,operating speed and hoisting force,as well as low precision or slow response of traditional mechanical protection devices,the Shaoxian Compound Sluice is taken as the engineering background.By utilizing the powerful computing function of PLC(Programmable Logic Controller)combined with the high-precision characteristics of encoders,mathematical models between encoder variation values and non-electrical parameters such as gate displacement speed,motor speed and steel wire rope traction are established,and a series of algorithms including soft travel protection,dual low-speed/high-speed protection and load over-limit early warning are derived.The defects of lagging protection and poor accuracy of traditional thermal relays and mechanical limit switches are effectively solved.Real-time perception and multi-dimensional linked protection of sluice operation status are realized,providing reliable technical support for the intelligent management of sluices.关键词
水闸/绝对值编码器/PLC/闸门开度Key words
sluice/absolute encoders/PLC/gate opening分类
建筑与水利
