Line Forecasting (Archied)
- magnus
- Dag Drejer
- Joachim H. Andersen (Unlicensed)
What is it?
The line forecasting page provides accurate and statistically valid ampacity and temperature forecasts for monitored lines. This allows you, as an operator, to regulate the capacity of their power lines safely and efficiently. In addition, by leveraging the power of forecasts, you, as a user, can become more proactive and respond quickly to contingency situations, even before they ever occur.
The forecasting page is designed to provide you as an operator with the means to make operational decisions for monitored power lines.
Contents
The Forecasting page consists of two main components:
The forecasting plot contains recent observations about line loading, DLR, and temperature, together with forecasted line capacity and temperature values for the selected time interval.
The Meteogram contains recent weather observations and forecasted values for the selected time interval for the following parameters.
Ambient temperature (°C)
Precipitation (mm)
Wind speed (m/s)
Wind direction
The line forecasting page offers two separate models.
CIGRE TB 601: Weather-based DLR
IEEE Std 738-2012: Weather-based DLR
A third method based on machine learning is under construction—more info to come.
How to use
By setting the desired confidence interval and forecasting period, you can easily see your lines' statistically valid ampacity and temperature forecasts. This can, for example, be used when planning day-ahead operations. In addition, by operating with respect to the forecasted value for the whole line, you as an operator can use the power line to the maximum capacity without overloading any of the critical spans.
When planning a disconnection of a power line, you can use the forecasting feature to investigate if a given power line has the available capacity to transmit the disconnected line's load. Therefore, the forecasting feature can be an important tool in contingency situations, offering powerful insight.