摘要
海洋石油生产储油轮作为海洋油气开发系统的核心部分,其发电机组控制技术要求可靠性高、抗干扰能力强、实时性好。基于西门子S7-300/400 PLC,提出采用层次化冗余控制结构构建发电机组控制系统:底层控制结构划分为各独立子系统,中间层控制站控制底层子系统协调工作,顶层系统实现人机交互以及系统监控;设计了各层控制系统硬件及软件结构;论述了层之间数据通信实现方式。系统具有开放性、智能性及易维护性等优点。
Floating production storage and offloading are a core of offshore oil and gas development system, itsgenerator control system should have high dependability,strong anti - interference ability and quickly real - time despondence ability. Based on S7 -300/400 PLC, it uses the redundant and hierarchy control structure to construct the control system. It devides the bottom control system into several subsystems, the top control system achieves the function of manmachine conversation and system monitoring. It also discusses the data communication method during all hierarchy control system. This system is open, intelligent and easy maintenance.
