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首页> 外文期刊>Indian journal of power and river valley development >Advances in instrumentation and control - an innovative approach to improve power plant efficiency
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Advances in instrumentation and control - an innovative approach to improve power plant efficiency

机译：仪器控制进展 - 一种提高电厂效率的创新方法

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摘要

Power plants installed in mam in the past three decades realized the automation techniques using the conventional control and instrumentation (C&I) technologies existing at that time. In due course of time the availability and reliability the conventional control and instrumentation system could not be ensured due to frequent failure of electronic modules/false signaling in some part of C&I systems at times. R&M of existing C&I systems with the state-of-the-art DCS is the solution for all the problems. The design of distributed control system (DCS) for R&M works in a typical power plant starts with the environmental requirements such as dedicated Precision Air Conditioners, Construction of Remote Input/Output rooms to connect the existing signals etc., The space requirements for new cabinets and the methodology of changeover from existing to new system; process parameters measurements and command interface to field retaining the field sensors and devices with new DCS are to be analyzed and engineered to meet the new requirements. The design of system configuration, hardware, software, input output subsystem, automation subsystem, communication subsystem are the main considerations in R&M works. All these design requirements are elaborated. The speed of response of DCS, redundancy, advanced controls are designed to meet the specific needs of the existing plant. The design of time synchronization with GPS clock and within the system is also elaborated. The electrical desk interface depicting the complete operation and monitoring of unit and station electrics to facilitate 100% screen based operation necessitates interface logic schemes design. The benefits derived from the R&M works in a typical installation is summarized.
机译：在过去三十年中安装的电厂在过去三十年中实现了使用当时存在的传统控制和仪器（C＆I）技术的自动化技术。在适当的时间内，由于C＆I系统在C＆I系统的某些部分在某些情况下频繁失败，无法确保传统的控制和仪器仪器系统无法确保。现有C＆I系统的R＆M具有最先进的DCS系统是所有问题的解决方案。用于R＆M的分布式控制系统（DCS）的设计在典型的电厂中，以专用精密空调，远程输入/输出室的构造，以连接现有信号等的环境要求，为新机柜进行空间要求以及从现有的新系统转换的方法;进程参数测量和命令接口与现场传感器和具有新DCS的设备进行分析和设计，以满足新的要求。系统配置，硬件，软件，输入输出子系统，自动化子系统，通信子系统的设计是R＆M工作的主要考虑因素。所有这些设计要求都详细阐述。 DCS，冗余，高级控制的响应速度旨在满足现有工厂的特定需求。还详细阐述了与GPS时钟和系统内的时间同步的设计。电气台界面描绘了单元和站电器的完整操作和监控，便于100％基于屏幕的操作需要接口逻辑方案设计。总结了R＆M在典型安装中获得的益处。

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