Transmission Network Tools

This suite of tools aimed at transmission network operators and planners includes options for analysing the voltage stability and power transfer capabilities of the network, and a Flow Decomposition function.

What is Flow Decomposition?

Flow decomposition is the analysis of flows within and between zones or control areas, in order to identify loop flows, transit flows, import/export flows, and HVDC- and phase-shifting transformer induced cycle flows. Such analysis is important when considering cross-border market capacity.

• Voltage stability assessment by determination of critical point of voltage instability
• Support contingency analysis, i.e. detection of “limiting contingency”¹

• Voltage stability limit assessment by evaluating the bus voltage change w.r.t. variation of injected reactive power
• Evaluating of stable operating points for various system loading scenarios, including contingencies¹
• Determination of reactive power compensation by superposition of capacitor characteristics in QV plots

• Analysis of the impact of a power exchange between two regions
• Various load and generation scaling options

• Determination of maximum power transfer capacity between two regions
• Various load and generation scaling options for exporting and importing region
• Thermal, voltage and contingency constraints options

• Calculation of loop flows, transit flows and import/export power flows
• Identification of HVDC- and phase-shifting transformer induced cycle flows

¹ Requires Contingency Analysis licence