Svenska kraftnät and IPS – The Future is Now for NMM
The recent development and imminent implementation by Svenska kraftnät (SvK, Sweden) and IPS of a Network Model Database (NMDB) have provided a vital central system for consolidating SvK’s electrical power network models and model related data, as well as model data from Producers, Distribution- and neighboring Transmission System Operators.
SvK is the Transmission System Operator (TSO) authority, responsible for ensuring the security of supply and that Sweden’s transmission system for electricity is safe, environmentally sound and cost-effective. The Swedish national grid for electricity consists of 15,000 km of power lines, 160 substations and switching stations and 16 connections to other countries.
Historically, the network models at SvK have evolved, based on the business process and updates to various model parts or objects are not automatically validated or included in the models used for decision making or analysis.
SvK has, for several years, been moving towards establishing processes to manage the network model data to avoid parallel work and duplication, and to ensure the quality and availability of the data. The network model data is collected on SVK’s electrical power system assets as well as assets from network utilities and market actors connected directly or impacting SVK’s network indirectly.
SvK’s main objectives for the establishment of a common network model database (NMDB) were as follows:
- Create a solid foundation for SvK to work more effectively and with higher quality with network model data and networks models.
- Create a solid foundation for SvK to ensure the integrity of the network model data assets in the central repository as well as in all target systems.
- To fully support SvK’s management of network model data over time, taking into account the current evolution of the grid and future planned grid expansion projects. Future planned projects include conceptual, preliminary and confirmed investments.
- To support SvK’s compliance with upcoming European network regulations, in the context of grid model exchange.
SvK uses five reference models for key business processes, as follows:
- The Energy Management System (EMS) Model is used for operating the real grid in real time.
- The DTS (Dispatcher Training Simulator) Model is an extension of the EMS model used for operator training and simulation
- The Planning Model covers the current and planned grid expansions.
- The Short Circuit Planning Model that represents the current grid and includes zero and negative sequence data.
- The Investments Planning Model is used as a basis for investigating various future modification and expansion scenarios.
All of these models have been captured and are now targeted for central management using the NMDB developed by SvK and IPS in close collaboration.