A New All Electric Subsea Control System Development

C. Monteverde, Marco Novello, Karstein Kristiansen
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引用次数: 2

Abstract

Over the past few years a specific programme has focused on the development of subsea separators and a subsea water treatment and injection process composed of several modules and requiring a certain amount of new subsea technology (subsea barrier fluid-less water injection pumps, filters, special water analyzers, etc.). One of these technologies is the all-electric subsea control system. The all-electric versus the electro-hydraulic solution was selected for its inherent capability to:enable long step-out distances;run logics such as sequences and fast closed control loops involving subsea proportional valves;handle high frequency of simultaneous valve actuations;implement safety functions, including SIL certified, when required. Within the ongoing industrialization programme of the new technologies, a Joint Development Agreement has been put in place between two partners for the qualification of the open framework platform for the control of subsea processes. The development is pursued according to the API 17N and DNV RP-A203 requirements. The subsea control system is developed according to the approach to interface standardization, which is aimed at guaranteeing:–the interchangeability of modules coming from different vendors;–the reduction of physical interfaces;–the optimization of IMR intervention time. The technology mainly consists of:a qualified basic component platform to be used for project-based assembly;a complete set of tools such as web-server, condition monitoring server, integrated software development environment, etc.;a standard and user-friendly approach for software application development, based on P&ID graphic, in order to facilitate the sharing of software information between contractor and clients;standard industrial communication protocols (no proprietary protocols) accessible to all users, which are designed for easy interfacing of the control system with third party equipment. The JDA activity has concluded the Q1 qualification tests of electronic components and Q2 tests of electronic assemblies, pursuant to API 17F, as well as all the other qualification activities (tests and analyses) relevant to the non-electronic components (e.g. 40kVA subsea electrical transformer), according to the relevant technology qualification plan. Additional software packages have also been developed and successfully tested using the Test Driven Development (TDD) method. The qualification will be completed by Q1 2019 with integration tests of:–Topside Control System;–Subsea Power and Communication Distribution Manager;–Subsea Control Unit. The integration tests will allow to reach TRL 4 of the above subsea equipment, in accordance with API 17N.
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新型全电动海底控制系统的研制
在过去的几年里,一个特定的项目专注于开发海底分离器和海底水处理和注入工艺,该工艺由几个模块组成,需要一定数量的新海底技术(海底屏障无流体注水泵、过滤器、特殊水分析仪等)。其中一项技术是全电动海底控制系统。选择全电动与电液解决方案是因为其固有的能力:实现长距离的步进距离;运行逻辑,如顺序和涉及海底比例阀的快速闭环控制回路;处理高频率的同时阀门驱动;在需要时实现安全功能,包括SIL认证。在新技术正在进行的工业化计划中,两个合作伙伴之间已经达成了一项联合开发协议,以确定用于海底过程控制的开放式框架平台的资格。开发是根据API 17N和DNV RP-A203要求进行的。海底控制系统是根据接口标准化的方法开发的,旨在保证来自不同供应商的模块的互换性,减少物理接口,优化IMR干预时间。该技术主要包括:一个合格的基础组件平台,用于基于项目的装配;一套完整的工具,如web服务器、状态监测服务器、集成软件开发环境等;一个标准的、用户友好的基于P&ID图形的软件应用开发方法;为了促进承包商和客户之间的软件信息共享;所有用户都可以访问的标准工业通信协议(没有专有协议),旨在方便控制系统与第三方设备的接口。根据API 17F, JDA活动已经完成了电子元件的Q1鉴定测试和电子组件的Q2测试,以及根据相关技术鉴定计划,与非电子元件(例如40kVA海底变压器)相关的所有其他鉴定活动(测试和分析)。使用测试驱动开发(TDD)方法,还开发并成功地测试了其他软件包。该认证将于2019年第一季度完成,包括:-上层控制系统,-海底电源和通信分配管理器,-海底控制单元的集成测试。根据API 17N,集成测试将使上述海底设备达到TRL 4。
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