Smart Digital Substation Deployment-Feedback on Contract Execution and In-service Experience
Distal technology has penetrated further into the substation environment over the past two decades.Firstly,vendor-specific implementations in the SCADA domain were followed by eventual standardization on IEC 61850 1 for station-bus based digital control systems (DCS).Process bus deployments replace the traditional hardwiring to primary equipment with an Ethernet link, and also convert the primary current and voltage measurement channels into protection relays and other IEDs (intelligent electronic devices) to fibre-optic too.Achieving a full station and process bus digital implementation helps to reduce the substation physical size, move as much configuration and testing to the FAT stage (factory acceptance testing), and also decouples the dissimilar renewal cycles of the primary and secondary equipment.The paper builds on the in-service advantages realized using IEC61850-8-1 for the DCS, extending the implementation to include the process bus too.Correct application of the standards has allowed a lot more of the substation engineering and construction activity to be undertook in the controlled environment of the factory, rather than on the substation site-where outage times and site labour are at a premium.Retrofit/refurbishment cases are also considered, considering the fact that technology progress within the secondary equipment worki(protection and control) often drives a renewal much sooner than the primary plant, including the current and voltage transformers (CTs and VTs).The secondary equipment can often be renewed twice or more frequently than the primary.
Digital instrument transformer Digital substation IEC 61850 Process bus Station bus
S.H.Richards A.Varghese
Alstom Grid,St Leonards Avenue,Stafford,ST174LX,UK
国际会议
南京
英文
216-220
2015-09-21（万方平台首次上网日期，不代表论文的发表时间）