基于高性能嵌入式系统的水电机组综合控制器的设计

Design of Integrated Controller Based on High-performance Embedded System for Hydroelectric Generating Unit

针对可编程逻辑控制器(PLC)作为机组控制时在电磁兼容标准等级上不够和功能上缺乏的缺陷,提出了基于高性能嵌入式系统设计的水电机组综合控制器取代PLC,提高了机组控制器的标准等级,并解决了采用PLC时通信协议不灵活、不能接入专用输入输出模块、系统设计复杂等问题,使水电机组控制器可灵活地接入各种智能设备、继电保护装置和专用自动装置,实现了采集数据的共享。该控制器还可灵活地扩展专用的输入输出模块,实现交流采集、灵活配置的顺序事件记录、温度巡检、机组自动准同期、人机交互、故障过程追忆等专用功能。对整个水电机组控制实现了优化,使系统具有设计简化、易于维护、投资节省等优点。

A design of integrated controller（IC） with high-performance embedded systems for hydroelectric generating unit is proposed.IC should be replaced existing programmable logic controller（PLC）,which can not meet the requirement of electromagnetic compatibility standards and lacks enough functions.The design of IC not only improves the unit controller＇s standard,but also solves problems when use PLC such as： inflexible communication protocol,not suitable for dedicated I/O modules,complicated system design.It makes hydroelectric generating unit controller have the flexibility to access various intelligent equipment,protection devices and special automatic devices,which implements share of data collection.IC can flexibly extend dedicated I/O modules to implement specific functions which can not be completed by PLC such as： AC acquisition,flexible configuration of the sequence record of events,temperature cyclic detection,unit automatic synchronization,human-computer interaction,recollection of failure etc.It optimizes the entire hydroelectric generating units so that now the system has advantages of simplified design,easy to maintain,investment savings and so on.