Background
Dynamic line rating (DLR) incorporates real-time, local conditions such as solar irradiance, wind speed, and line tension using technology such as weather station data and other sensors installed on or close to the monitored line. Using DLR, transmission line ratings can be adjusted to optimize power flow without either increasing risks of reliability events or damaging lines and equipment.
Challenge
Historically, it has been challenging to integrate dynamic ratings of transmission lines into energy management systems (EMS) and security constrained economic dispatch (SCED) software. Beyond the technical challenges, DLR introduced more complex processes and procedures for grid operators to maintain reliability within applicable standards such as those provided by the North American Electric Reliability Corporation (NERC).
Approach
The project will demonstrate two commercially available DLR systems that utilize sensors installed on or close to transmission lines at a major Investor-Owned Utility (IOU) in the United States.
Solution
DLR data will be integrated into the IOU's EMS simulator to run SCED and train grid operators. The major IOU will then evaluate their confidence for utilizing DLR going forward to increase power capacity within important energy corridors.