冗余技术在厂站端自动化系统中的典型应用

介绍了厂站端自动化系统中的冗余配置,介绍了冗余的概念,单元冗余比系统冗余有更高的可靠性和实现成本。通过实现服务的冗余而不是整台主机的冗余实现主机的单元冗余;通过跟踪每台装置的工作网而不是整个系统的工作网实现站级网络的单元冗余;给出了远动通道系统冗余、单元冗余的各种情况,并提出了典型应用;给出了电源冗余、对时源冗余的技术要求。提出了在厂站端自动化系统的设计过程中应根据不同的需求选择性价比高的冗余方式。

Typical application of redundancy technology in substation automation system

This paper introduces the redundancy configuration of substation automation system and the concept of redundancy.Unit redundancy is more reliable and more costly than system redundancy.In the mainframe redundancy,unit redundancy is implemented by service redundancy instead of whole mainframe redundancy.In network redundancy,device of station layer identify working network of bay device instead of working network of the whole system to implement unit redundancy.It also cites the cases and typical application of system redundancy and unit redundancy for telecontrol channel,the technical requirement of power supply redundancy and synchronization source redundancy.It is necessary to select the favorable redundancy mode in the design of substation automation system.