Unbalanced Load Allocation and Non-Technical Loss Calculation

With the penetration of distributed generations into distribution network, real-time model based monitoring of the network using distribution state estimation is essential for traditional unbalanced distribution networks. Distribution State Estimation utilizes load allocation techniques to further provide real-time reporting of technical and non-technical power losses.

Distribution State Estimation Key Features

• Estimate individual loads on a feeder based on load classes, load type, load curve, and load measurements
• Integrates with transmission state estimation to provide a unified and complete picture of an integrated transmission and distribution system
• Distribution State Estimation can operate in power networks:
  • With or without verification of telemetered measurements
  • With manual or automatically processing unobservable parts of network
  • With or without fixed measurements
  • All historical data are known
  • Networks with no historical data available (based on parameters of the network elements) and also according to users setting
• Distribution State Estimation utilizes historical data of the network including:
  • Daily load profiles based on class types, day of week and weather conditions
  • Peak loads for distribution transformers and/or consumers and/or energy transfer
• Distribution State Estimation considers into account the non-availability of real time data and compensates them with historical data, pseudo and virtual measurements, to achieve the minimal set of input data necessary for running a consistent power flow
• Real-time tabular reporting of technical and non-technical losses per feeder and per substation