数字化集成保护与控制系统结构设计方案研究

Research on design of digital integrated protection and control system

介绍了一种以多功能保护控制器MPCU为核心的数字化集成保护与控制系统DIPC。DIPC适用于数字化变电站,通过非传统互感器、合并单元、以太网和多功能保护控制器实现整个变电站的保护和控制功能。其中的核心元件MPCU是一台集中式的多功能数字装置,从过程层总线接收多个设备的信息,完成变电站内全部或部分设备的保护、控制、量测等功能,并利用冗余的广域信息提高保护与控制的性能。文章着重介绍了过程层总线的配置、MPCU的功能和结构。

A digital integrated protection and control system（DIPC） with a multifunctional protection and control unit（MPCU） as the core is presented. In a digital substation, all protection and control functions can be realized by DIPC, which consists of the non-conventional instrument transformers, merging units, Ethernet and MPCU. MPCU is a centralized digital device with multifunctions. It gets the electrical data from process bus and integrates the functions of protection,control and metering of several electrical equipments. The performance of the protection and control can be improved by the integration of information. The configuration of the communication network, the principle, architecture and functions of the MPCU are also introduced.