水利水电技术（中英文）

介绍了丰满水电厂分层分区布置的全厂水轮机调速系统的结构。全厂调速系统智能分析平台通过工业以太网与各水轮机调速系统健康状态监测平台相连,各水轮机调速系统健康状态监测平台通过以太网与水轮机调节器A机PLC、B机PLC以及油泵控制系统相连,还通过RS485总线与油泵变频器通信;各水轮机调速系统通过IEC61850-MMS A网和B网与水电厂一体化管控平台相连,以便共享信息;调速系统关键部件均实现了冗余配置,且增加了监测对象,包括分段关闭装置、事故配压阀、接力器、油压装置和漏油箱等。这种结构便于单机和多机调速系统的协同监测和优化控制。根据反措要求,设计了多功能失电关闭装置、失电分段关闭装置和防水淹型漏油装置,也进行了水轮机调速器和油压装置的反措设计,防范重大事故的发生,提高系统的安全性和稳定性。

The structure of the hydraulic turbine governing system ofthe whole hydropower plant which is arranged in different layers and zones is introduced. At its highest level, the intelligent analysis platform for the turbine governing system of the hydropower plant is connected to the health monitoring platform for the governing system of each hydraulic turbine via industrial Ethernet. The latter platform is connected to the PLC A and PLC B of the turbine governor, and an oil pump control system via Ethernet. It also communicates with an oil pump frequency converter over a RS485 bus. The governing system of each hydraulic turbine is connected to the integrated control platform of the hydropower plant via IEC61850-MMS network A and network B for information sharing. Redundancy is added to the key components of the governing system, and the monitored objects are added, including step closing device, emergency distributing valve, servomotor, oil pressure device, leak oiltank, etc. The structure facilitates the coordinative monitoring and optimized control of single-unit and multi-unit governing systems. Finally, a multi-functional power failure closing device, a power failure step closing device, and an anti-flooding leak oil device are designed according to the anti-accident requirements. The anti-accident measures are also incorporated in the governor and oil pressure device design to prevent serious accidents and improve the safety and stability of the system.