垂直升船机主提升系统同步控制的研究

发布时间：2018-01-13 14:07

本文关键词：垂直升船机主提升系统同步控制的研究　出处：《华侨大学》2014年硕士论文　论文类型：学位论文

【摘要】：升船机是一种重要的过船建造物，与船闸相比，升船机具有缩短船舶通航时间、节约水资源等优点。垂直升船机提升过程中最重要的是保证承船厢的平稳运行，这就要求多台提升电机能够保持转速同步。目前在垂直升船机的同步系统中普遍采用的是将多电机通过机械轴相连，实现机械同步控制。而机械同步系统具有结构复杂、运行灵活性差、工程造价高等缺点，针对此问题，本文的主要研究内容如下： 1.针对现有垂直升船机中机械同步的不足，本文提出了多台提升电机采用电同步控制方案。 2.对多电机的电同步控制结构进行了研究，包括非耦合和耦合控制两种方式。通过分析对比各类同步控制结构，本文采用了偏差耦合控制作为系统同步控制结构。并且在偏差耦合的补偿模块上作了适当的改进，得到了改进型偏差耦合控制策略。 3.对同步控制系统中的控制器进行了研究。针对传统PID在升船机这类非线性、参数时变的复杂系统中难以取得良好的同步控制性能，，本文将智能算法引入到控制器的设计中，能够极大地改善控制效果。文中采用了两种智能PID控制算法：模糊PID及单神经元PID。 4.在隔河岩升船机的控制系统基础上建立了仿真模型。通过仿真，验证了电同步控制的可行性，并对比了采用传统PID、模糊PID及单神经元PID三种算法在控制系统中的同步性能。本文主要的目的在于对垂直升船机主提升系统控制方案进行探索，为今后升船机提升方案的设计提供参考。
[Abstract]:Ship lift is an important building object. Compared with lock, ship lift has the advantages of shortening ship navigation time and saving water resources. In the process of vertical ship lift, the most important thing is to ensure the smooth operation of the ship compartment. This requires a number of lifting motors to maintain speed synchronization. At present, in the vertical ship lift synchronization system, it is commonly used to connect the multi-motor through the mechanical shaft. The mechanical synchronization system has the disadvantages of complex structure, poor running flexibility, high engineering cost and so on. In view of this problem, the main research contents of this paper are as follows: 1. Aiming at the shortage of mechanical synchronization in the existing vertical ship lift, this paper presents an electric synchronous control scheme for several lifting motors. 2. The electrosynchronous control structure of multi-motor is studied, including non-coupling control and coupling control. In this paper, bias coupling control is adopted as the synchronous control structure of the system, and a modified bias coupling control strategy is obtained by improving the compensation module of deviation coupling. 3. The controller of synchronous control system is studied. It is difficult to obtain good synchronous control performance in complex systems with nonlinear and time-varying parameters such as ship lift by traditional PID. In this paper, the intelligent algorithm is introduced into the controller design, which can greatly improve the control effect. In this paper, two intelligent PID control algorithms, fuzzy PID and single neuron PIDD, are adopted. 4. Based on the control system of Geheyan ship lift, the simulation model is established. The feasibility of electric synchronous control is verified by simulation, and the traditional PID is compared. Synchronization performance of fuzzy PID and single neuron PID algorithms in control system. The main purpose of this paper is to explore the control scheme of the main lifting system of the vertical ship lift, and to provide reference for the design of the lifting scheme of the ship lift in the future.
【学位授予单位】：华侨大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U642

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