基于冗余技术的自升式海洋平台升降控制系统研究
发布时间：2018-07-15 07:23
【摘要】：自升式海洋平台因其优越的结构性能、良好的深水适应能力和低廉的维护成本等优点而迅速发展成为海洋钻井平台中的主力军。由于恶劣的海洋环境对海洋平台不断的侵蚀以及某些人为因素的影响,平台安全事故时有发生,给世界经济和环境造成了巨大的损失和破坏。针对上述问题,本文以自升式海洋平台升降系统为研究对象,对其结构特点、升降过程等进行深入研究,开发了自升式海洋平台升降控制系统。基于PROFIBUS现场总线、OPC、变频调速以及PLC软冗余等技术,针对自升式海洋平台升降系统的特点和控制要求,设计了控制系统总体方案。从该系统的特点和功能出发,搭建了系统实现的硬件平台。分析了系统的监控参数;详细研究了平台自平衡模块和齿轮组载荷均衡模块的实现原理;利用PROFIBUS DP现场总线技术实现了对变频器的通讯控;利用模块化的编程方法完成了对下位机控制程序的开发。为提高系统的可靠性,利用西门子冗余软件包,完成了对软冗余系统的程序开发,实现了主/备系统之间的冗余切换功能。考虑到升降控制系统大量的数据存储需要,利用SQL Server 2012开发了系统的数据库,并通过ADO技术实现对数据库的访问。然后在STEP7和SIMATIC NET 2010软件中配置了OPC服务器,通过开发OPC客户端实现了上下位机之间的信息交互,解决了控制系统的数据源问题。最后在VB.NET平台上开发了自升式海洋平台升降控制系统应用程序,实现了用户管理、过程监控、故障报警以及统计分析等功能。最后,通过搭建实验原型系统,对设计的基于PLC软冗余技术的自升式海洋平台升降控制系统进行了初步验证。
[Abstract]:The jack-up offshore platform has become the main force in offshore drilling platform because of its excellent structural performance, good deep water adaptability and low maintenance cost. Due to the unceasing erosion of the marine environment and the influence of some man-made factors, the platform safety accidents occur from time to time, resulting in great loss and damage to the world economy and environment. Aiming at the above problems, this paper takes the jack-up offshore platform lifting system as the research object, deeply studies its structure characteristics, lifting process and so on, and develops the jack-up offshore platform lifting control system. Based on PROFIBUS fieldbus OPC, frequency conversion speed regulation and PLC soft redundancy, the overall scheme of the control system is designed according to the characteristics and control requirements of the jack-up offshore platform lift system. Based on the characteristics and functions of the system, the hardware platform of the system is built. The monitoring parameters of the system are analyzed, the realization principle of the self-balancing module and the load equalization module of gear group are studied in detail, and the communication control of inverter is realized by using PROFIBUS / DP fieldbus technology. The programming method of modularization is used to complete the development of the control program of the lower computer. In order to improve the reliability of the system, the software development of soft redundancy system is completed by using Siemens redundancy software package, and the redundancy switching function between main and backup systems is realized. Considering the need of large amount of data storage in the ascending and descending control system, the database of the system is developed by using SQL Server 2012, and the access to the database is realized through the technology of ADO. Then the OPC server is configured in STEP7 and SIMATIC net 2010 software. The data source problem of the control system is solved by developing the OPC client to realize the information exchange between the upper and lower computers. Finally, the application program of elevating control system of jack-up offshore platform is developed on VB.NET platform, which realizes the functions of user management, process monitoring, fault alarm and statistical analysis. Finally, by building the prototype system of the experiment, the designed lifting control system of offshore platform based on PLC soft redundancy technology is preliminarily verified.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P752
，
本文编号：2123293
[Abstract]:The jack-up offshore platform has become the main force in offshore drilling platform because of its excellent structural performance, good deep water adaptability and low maintenance cost. Due to the unceasing erosion of the marine environment and the influence of some man-made factors, the platform safety accidents occur from time to time, resulting in great loss and damage to the world economy and environment. Aiming at the above problems, this paper takes the jack-up offshore platform lifting system as the research object, deeply studies its structure characteristics, lifting process and so on, and develops the jack-up offshore platform lifting control system. Based on PROFIBUS fieldbus OPC, frequency conversion speed regulation and PLC soft redundancy, the overall scheme of the control system is designed according to the characteristics and control requirements of the jack-up offshore platform lift system. Based on the characteristics and functions of the system, the hardware platform of the system is built. The monitoring parameters of the system are analyzed, the realization principle of the self-balancing module and the load equalization module of gear group are studied in detail, and the communication control of inverter is realized by using PROFIBUS / DP fieldbus technology. The programming method of modularization is used to complete the development of the control program of the lower computer. In order to improve the reliability of the system, the software development of soft redundancy system is completed by using Siemens redundancy software package, and the redundancy switching function between main and backup systems is realized. Considering the need of large amount of data storage in the ascending and descending control system, the database of the system is developed by using SQL Server 2012, and the access to the database is realized through the technology of ADO. Then the OPC server is configured in STEP7 and SIMATIC net 2010 software. The data source problem of the control system is solved by developing the OPC client to realize the information exchange between the upper and lower computers. Finally, the application program of elevating control system of jack-up offshore platform is developed on VB.NET platform, which realizes the functions of user management, process monitoring, fault alarm and statistical analysis. Finally, by building the prototype system of the experiment, the designed lifting control system of offshore platform based on PLC soft redundancy technology is preliminarily verified.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P752
，
本文编号：2123293
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