柴油机电子调速器系统仿真及故障诊断智能系统

【作者】 黄爱平；

【导师】 郑士君；

【作者基本信息】 上海海运学院 ， 轮机工程， 2002， 硕士

【摘要】 本文结合中远集团科研项目《SPC-33电子调速器计算机辅助分析系统》，对我国近几年在新建船舶中采用的SPC-33电子调速器，运用FTA故障树分析理论及计算机仿真，实现电子调速器故障计算机分析和诊断，并对调速器操作面板和转速控制系统进行仿真。论文所解决的问题是：调速器接口、原理仿真；调速器控制面板仿真；电子调速器故障信息流分析；转速控制系统仿真。 本文将电子调速器分为转速调节单元、驱动控制单元、电动执行单元，对这些功能单元从结构、功能上进行原理仿真，建立单元的热点信息链与具体功能建立二次热点信息链。对调速器相关的单元：遥控控制台、电子VIT控制、高压油泵、转速检测单元、SPC-33外部接口等建立热点信息，并以图形界面显示。 本文对SPC-33电子调速器控制面板建立仿真操作系统，包括转速控制功能说明、参数设定功能说明、参数设置操作。以软件操作模拟形式对控制面板操作进行图形和文字说明，并进行模拟操作和参数设置。使轮机管理人员在模拟环境下熟悉调速器各项性能参数的调整，并获得操作经验。 本文运用FTA故障树分析方法和最小路集方法，对SPC-33电子调速器进行故障信息流分析，从系统化角度构筑FT，并建立镜像对称的故障逻辑矩阵模型。从顶事件开始，计算各级故障的失效率和不可靠度，按照各级故障发生的最大概率，排列出底事件序列，迅速找到某一顶事件最可能对应的底事件，实现智能故障分析与诊断。 在充分调研与分析后，导出了电子调速器的物理和数学模型，并对SPC-33电子调速器调速系统建立仿真模型。在仿真模型基础上，运用面向对象和面向组件的设计思想，对电子调速系统进行软件设计开发，系统设计语言采用统一模型语言(UML)，进行可视化系统模块构造。采用面向对象的编程模式，运用Windows操作系统下动态链接库技术，使系统结构紧凑、运算速度快。 本课题第一版应用软件已在中远集团装船使用，因其界面友好，图形逼真，仿真效果直观明了，能解决实际问题而受到用户欢迎。更多还原

【Abstract】 Based on the research project "SPC-33 digital governor computer aided analysis system", this paper realizes the digital governor, which has been fixed in newly built vessels in our country fault analysis and diagnosis with computer and simulates the SPC-33 digital governor control panel and speed control system by adopted the FTA analysis theory and computer based simulation. The technique problems that have been solved are digital governor structure and principle emulating, control panel simulation, fault information stream analysis and SPC-33 digital governor speed control system simulation.In this paper, the author divides the digital governor as speed control unit, drive unit, electronic execution unit. For above three parts, the author also makes principle emulating from structure and function and constructs the hotspot information chain with next class hotspot information chain of specific functions. For the relative units like remote control panel, electronic VIT control, oil eject, speed pick up unit and SPC-33 external interface the hotspot information is also made and displayed by visual components.Including speed control function specification, parameter setting function specification, parameter setting operation, the author build a simulation operation system for SPC-33 digital governor control panel. Through the way of software simulation, the system presents dynamic specification of images and texts and simulates the parameter setting operation. It makes the management personal familiar with digital governor speed control parameters and obtain experience under simulating environment.By adopting FTA (fault tree analysis) and minimal path sets theory, the fault information stream analysis of SPC-33 digital governor is made, and from the point of system the FT is constructed. And the fault model with logic matrix in mirror symmetry has been built. From top level event fault, every level events’ ineffective rate and unreliability limit arecalculated and sorted by maximum probability of occurred faults in each level, the sequence of the bottom-event is arranged, and then the most probably happened bottom-event correspond to the specific top-event is found rapidly. Therefore the intelligent fault analysis and diagnose system is realized.After sufficient research and analysis, we make up the logic and math model of digital governor, and establish simulating system of it. On the basis of the model, using unified model languish(UML), we design and develop the simulating system. By adopted object oriented and component based design theory, using dynamic library link technique under windows programming, the system was compacted in structure and run faster.The first edition of the system has been using in COSCON Group, it is welcomed because of the friendly interface, vivid images, directed effect and the ability of problem solving.Huang Aiping (Marine Engineering) Directed by Zheng Shiiun更多还原