基于模糊PID控制的船闸闸门同步控制器设计与仿真

船闸是航道上的通航建筑物,其通过能力制约着航道的运输量,对控制系统进行技术改进是提升船舶过闸效率最行之有效的方法之一。模糊控制是通过建立规则库,并结合大量的实践及专家经验确定隶属度函数而建立的非精确调节模型。将模糊PID控制应用于双侧闸门变速跟随控制,利用开度仪的信号反馈扰动液压系统流量,从而调节闸门开启速度,形成闭环控制,并经仿真及现场功能测试。结果表明,该系统保障了控制系统的稳定性、可靠性、自适应性,闸门同步运行良好,船舶过闸稳定性及效率有明显改善。

Design and simulation of synchronous controller of ship lock gate based on fuzzy-PID control

Ship lock is an important navigation structure in the channel. The capacity of the ship lock restricts the transportation capacity of the channel. Technical improvement of the control system is one of the most effective methods to improve the efficiency of the ship lock. Fuzzy control is an imprecise regulation model established by establishing a rule base and combining a large number of practices and expert experience to determine the membership function. In this paper, fuzzy-PID control is applied to the dual-side gate variable speed follow-up control. The feedback of the opening instrument is used to disturb the flow of the hydraulic system, so as to adjust the opening speed of the gate and form a closed loop control. The simulation and field function tests are carried out. The results show that the system ensures the stability, reliability and adaptability of the control system, the gate operates well synchronously, and the stability and efficiency of ship passing the lock are improved significantly.