Experiences in dynamic line rating (DLR) using a wireless line monitoring system (ILMS)

More renewable resources require increased power system capacity. As there are financial restrictions or government regulations making it difficult to build new transmission lines to reinforce the network. The Wireless Monitoring System of Distribution Lines is based on sensors that are installed directly in the distribution lines. Complemented with wheatear station, in turn send the measurement information (phasor current, conductor temperature, wind speed and direction) to a hub (usually installed on the MV pole). By using advanced analysis tools, additional intelligence in the power distribution network is provided to improve the reliability and efficiency of the network by using a web server-side software to dynamically calculate the line rating. and provides a configuration mechanism for the console to allow mapping of the algorithm inputs to the measurements available in the system. This approach allows using the same calculation mechanism for line sag, or DLR algorithms. Paper describes experiences with data obtained from the field, showing increases of energy transfer of around 11% up to 160% of the line nominal power. This brings an economic benefit for users to maximize the use of their assets, matching the operation with the generation characteristics of intermittent generation sources such as wind and solar.