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Network configuration optimisation

One of the ways to optimise radial networks is achieved through changing the status of switching devices. The reconfiguration brings utilities economical gain by realising energy savings and it can also provide the networks with more capacity to handle contingency situations. 

Eaton’s Network Configuration Optimisation module is additional to the CYME power system analysis software and is designed to provide engineers with switching plans to obtain optimal network topology.

It has always been a challenging task for utilities to ensure electricity supply with the current infrastructure while keeping the costs low. As engineers contemplate options such as capacitor placement and Volt/VAR optimisation to yield a more optimal outcome from system assets, other solutions, such as reconfiguring the network through switching, exist as a first step to reducing electricity cost while minimising the impact on capital use. 

Network configuration optimisation module

General

The reconfiguration of networks often brings benefits such as reduction of power losses and  voltage violation counts. The module offers the following different objectives:

  • Perform load transfer studies to determine how loads can be transferred from one heavily loaded substation or feeder to another through tie-points
  • Minimise voltage exceptions to reduce the number of voltage violations
  • Minimise overload exceptions to reduce the number of overloaded equipment
  • Limit the exposure of certain feeders by transferring part of their circuit to other feeders to improve reliability
  • Improve system kW losses to reduce operating cost

Customisable analysis

The analysis can be customised with user-specified constraints, including:

  • Maximum/minimum limits for a switching recommendation
  • Maximum loading limits for each type of equipment
  • Voltage limits
  • Selecting which switching devices to operate during the analysis

Besides suggesting an optimal network topology by switching existing devices, the analysis can also recommend optimal location for new tie points.

With the module’s many options, users can easily simulate what-if scenarios to compare outcomes of different combinations of objectives and constraints.

Illustrative results

Results are presented both graphically and in reports to help evaluate the proposed solution.

After the simulation, tags displayed on the one-line diagram let you clearly visualise the switching operations proposed.

The comprehensive report provides:

  • Detailed listing of the switching operations recommended
  • Network summary on loading, kW losses and network length for both before and after the recommended switching operations
  • Overloaded equipment count for the initial and final network configurations
  • Number of voltage violations for the initial and final network configurations
  • Evaluation of the annual cost of system losses 

Need product support?

CYME user portal: my.cyme.com

P: 450 461 3655 or 800 361 3627 (Canada and USA)

E: cymesupport@eaton.com

Questions before you buy

E: cymeinfo@eaton.com