Distribution Network Optimization
In order to reduce network unbalance and improve quality of supply, DIgSILENT PowerFactory incorporates features to assist the user in distribution network optimization:
- Optimal capacitor placement
- Open tie optimization
- Cable reinforcement optimization
- Feeder tools for voltage/technology change
- Auto-balancing to minimize voltage unbalance
Optimal Capacitor Placement
PowerFactory’s Optimal Capacitor Placement determines the optimal locations, types and sizes of capacitors to be installed in radial distribution networks. The economic benefits due to energy loss reduction are weighted against the installation costs of the capacitors while keeping the voltage profile within defined limits. This feature includes:
- User-definable library of proposed capacitor candidates together with annual installation costs
- Consideration of:
- Benefits due to loss reduction
- Voltage limits
- Maximum total investment costs
- Support of load profiles
- Calculated results: set of locations where capacitors should be installed, which type of capacitor(s) should be installed at each site, and whether or not a switched capacitor is proposed.
- User-friendly presentation of results with fully-integrated post-processing features
Open Tie Optimization
PowerFactory’s Open Tie Optimization finds a loss-minimal switch configuration of the network, which results in a radial topology while maintaining all thermal limits. This feature includes:- Heuristic algorithm which explores all potential meshes in the grid to evaluate the optimal tie-points to open
- Consideration of loading limits
- User-definable section of the network where optimal open tie-points should be determined
- Report mode to propose switch status changes or automatic switch reconfiguration
