电厂电气监控管理系统

Electrical control and management system applied in power plants

对发电厂中电气监控管理系统(ECMS)产生背景、系统构成、方案特点进行了介绍,阐述了火力发电厂ECMS中关键技术点。ECMS由站控层、分布控制层和间隔层构成。基于现场总线的ECMS采用开放式网络结构,向电厂内生产、管理系统开放,提供全面可靠的电气信息。介绍了保护及故障信息管理、电气智能报警系统、电气控制逻辑、设备维护管理和诊断、系统在线自诊断技术、电气运行性能分析、控制权切换管理等特色的高级应用功能。该ECMS在某发电厂进行了应用,提高了机组电气的自动化和信息化水平。

The background,structure and key technology of ECMS（Electrical Control and Management System） are introduced.The ECMS applied in fossil power plants has three layers：station control,distributed control and compartment.The fieldbus-based ECMS adopts the network architecture,open to the operation system and management system of power plant,providing complete and reliable electric information.The advanced application functions are presented：the management of protection and fault information,the intelligent electrical alarm system,the electrical control logic,the device maintenance and diagnosis,the online system diagnosis,the analysis of electric operating performances,the management of control authority switching,etc.Its application in a power plant enhances the automation and information level of electric island.