Intelligent Load Shedding

Intelligent Load Shedding - ILS™

Optimal Load Preservation System
ETAP Intelligent Load Shedding (ILS) provides optimal, fast load shedding based on actual operating conditions of the system, including type and location of the disturbances.
  • Load Preservation

    Preserve system operation against disturbances, loss of generation, and unplanned outages.

  • Load Restoration

    Restores loads incrementally based on knowledge of process and electrical system interdependencies

  • Load Shedding Validation

    Validate load shedding logic schemes via simulation prior to field deployment

Key Features

  • Eliminate unnecessary load shedding
  • Reduction of downtime for critical loads
  • Reduction of spinning reserve requirements
  • Reliable load preservation system
  • Fast response to disturbances
  • Operator alerts for marginal operating conditions
  • Display required minimum MW & selected loads
  • Trigger & time dependent load shedding
  • User-definable control logics & macros
  • User-definable system triggers
  • Operator-friendly interface
  • Display operating & recommended spin reserve
  • VFD load reduction control
  • System islanding logic
  • Display monitored data on the one-line diagram
  • Predict system response after load shed
  • Log & view load shedding actions & recommendations
  • Unlimited load shedding schedules
  • User-defined load priority & groups
  • Option to simulate & test ILS recommendations

    Predictive Load Shedding calculates the minimum required MW to be shed for each subsystem according to the type and location of the disturbance, actual operating generation, spin reserve, loading, configuration, load distribution, and priority. Predictive Load Shedding then selects the best combination of loads that will satisfy this requirement.

    All of this is executed instantaneously (no delay) after a disturbance occurs in the system for transient events or after user-defined time delay for steady-state overload conditions.



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