An Enhanced Substation Load Monitoring System via the Data Sharing Center

Load monitoring is a critical component of the operation of an electrical power system. However, in practical applications, the granularity of monitoring systems is often limited to the substation level, lacking accurate perception of the electricity load of lower-level users. This limitation results in monitoring systems being unable to proactively intervene with high-load users at the lower level after detecting heavy overloads in the station area, and can only passively take measures such as power rationing. To address this issue, this paper proposes an Enhanced Substation Load Monitoring (ESLM) system. ESLM is based on a Measurement Data Sharing Center (DSC) that aggregates data sources and possesses a dual-level perception capability for substations and residential loads. Specifically, ESLM only monitors substations that frequently experience high loads, achieving monitoring in a lower cost and easier to operate manner, and automatically triggers alarms when the station/user load exceeds the threshold. The practical results demonstrate that ESLM improves the granularity and accuracy of load monitoring, reduces monitoring complexity, and effectively improves the efficiency of substation operation and maintenance.