This paper proposes a methodology for overhead line ampacity forecasting that enables empirical probabilistic forecasts to be made up one day ahead, which is useful grid scheduling and operation. The proposed method based on the statistical adaptation of weather line-span scale aims produce reliable allow selection low risk overheating conductors by TSOs DSOs. Moreover, evaluation capacity utilization also proposed.

The search for neural correlates of operant and observational learning requires a combination two (experimental) conditions that are very difficult to combine: stable recording from high order neurons free movement the animal in rather natural environment. We developed virtual environment (VE) simulates simplified 3D world honeybees walking stationary on an air-supported spherical treadmill. show perceive stimuli VE as meaningful by transferring learned information flight world. In VE,...

Predictions of the ampacity overhead lines can be framed in a general context that aims to make electric grids highly efficient and reliable. In this paper, methodology is presented provides forecasts, which are valid for both very short term, such as few minutes or hours, longer terms, up 24 hours ahead. The former useful grid operations, while latter may valuable electricity markets. A time series mesoscale weather forecasts have been combined machine learning algorithms producing reliable...

The actual line rating in overhead lines varies with weather conditions. When a utility defines value for the operation of line, it takes into account both security and forecast ratio. defined is secure if below rating. A good ratio obtained when close to Therefore, aim forecasting method define that but value. This study shows measurements carried out pilot analyses performance several methods comparing values ones.

Operation and planning of a power system are constrained by the rating lines. Usually, static line is used for operation planning. The defined an electric grid uses same conservative weather assumptions whole regardless location each or its maximum-allowable conductor temperature. A separate analysis magnitudes measured in pilot shows how favorable air temperature solar heating compensate unfavorable wind speed. However, this compensation limited higher temperatures. As result, risk...

The overhead line rating methods have a double requirement: accuracy and security. A method is accurate if the forecasted close to actual rating. It secure lower or equal This paper compares several in terms of security based on results pilot project. Indicators for conductor temperature exceedance underestimation are used compare methods. static rating, ambient-adjusted weather forecasts analyzed.

Thermal ratings are usually considered for planning the operating conditions overhead lines and obtained with static parameters. These can be improved using dynamic based on region weather forecasts, this improvement ever higher when a local prediction is performed at point where line located. In work, model artificial neural networks techniques applied to predict ampacity property of transmission line, in order adjust optimize operation grid under safety conditions. predictions calculated...

Utilities operate overhead lines using static ratings based on conservative weather assumptions. ARIMA models, among other statistical methods, proved useful to forecast the variables involved in ampacity of lines, or wind farms. This paper analyzes these methods and implements a method improve security make better use line capacity.

Generally, electric companies consider static thermal ratings for overhead lines, which are based on conservative weather assumptions. However, forecasts can be used the operation of distribution lines to determine dynamically, some hours in advance. may not accurate enough operate grid securely, so different statistical methods get closer actual conditions. This paper implements a method improve security ampacity prediction.

One of the purposes smart grids is efficient delivery sustainable, economic and secure electricity supplies. strategies used for this purpose control improvement overhead lines ampacity. A use actual ampacity requires implementation intelligent devices. Research on aimed not only to calculate it in real time, but also be able forecast several days or hours advance. The aim paper compare different forecasting methods based a bibliographic analysis. are classified terms algorithms, required...

Distribution and transport system operators plan operate overhead lines in power transmission networks by using thermal ratings calculated under static conditions. These assumptions sometimes lead a network to work outside the range of safe For this reason, use dynamic ratings, which depend on meteorological conditions region study thus are more adaptable better able ensure optimal operation, has become common. The main drawbacks these rating calculations that perform day-ahead scheduling,...

Transmission system operators operate overhead lines in power transmission networks by using thermal ratings calculated under static conditions. These assumptions sometimes lead a network to work outside the range of safe conditions, and underutilized. For this reason, use dynamic ratings, which depend on meteorological conditions region study thus are more adaptable better able ensure optimal operation, has become common. The main drawbacks these rating calculations that perform day-ahead...

Actual rating of the lines is important information for system operators. Dynamic line systems provide this information. The ampacity it related to conductor temperature. This temperature can be calculated from meteorological measurements or by means a Temperature Measurement System. Three different weather monitoring and one System have been installed along an overhead power line. These allow quantifying uncertainty due spatial variability.

This paper explores the benefits that ampacity dynamic line ratings (DLR) can offer to obtain a higher penetration of wind power generation in grid. presents an analysis real examples where monitoring systems are achieving when operating network. Monitoring not only provide economic benefits, but also information for predictions. These predictions help plan dispatch energy electricity market, always taking into account risk such may be fulfilled. The case studies demonstrate and increased on...

Wind power has a significant impact on the operation of grids. As is planned some hours in advance, it necessary to forecast wind power. Besides, forecasting techniques can be adapted for overhead line rating forecasting. This useful defining advanced strategies grid and improve integration. paper describes several works carried out speed rating. Some methods used are implemented pilot results analyzed.

Wind power has a significant impact on the operation of grids. As is planned some hours in advance, it necessary to forecast wind power. Besides, forecasting techniques can be adapted for overhead line rating forecasting. This useful defining advanced strategies grid and improve integration. paper describes several works carried out speed rating. Some methods used are implemented pilot results analyzed.

Dynamic line rating systems provide the system operators information about actual of lines. The ampacity is determined by critical span, which span with worst thermal balance line. Three different weather monitoring have been installed along an overhead power These allow quantifying uncertainty due to spatial variability. measurements are compared in order find and study variability a

As electric grids are programmed some hours in advance, it is advantageous to forecast the ampacity of lines. In this paper authors propose an method based on weather forecasts. The proposed compared with a static probabilistic method. order compare both methods, ratio and security indicators have been used for analysis. results two different pilot projects shown.