voltage-violation-mitigation

Voltage violation mitigation

Start only after the violated buses, limits, and study condition are known.

Preferred action order

1. Confirm the violation is real: solved case, correct limits, realistic generator Q limits, working AVR or Volt-VAR controls, correct remote-regulation targets.
2. Use existing reactive support first: generator voltage setpoints, free LTCs, switch shunts or capacitors, enable SVC or STATCOM or inverter Volt-VAR response.
3. Reduce reactive transport: redispatch MW closer to load, reduce stressed imports, or reconfigure topology.
4. If the problem remains, reduce transfer or load and identify reinforcement needs.

High-voltage cases

• Lower voltage targets carefully.
• Switch out capacitors or switch in reactors.
• Absorb vars with generators or inverters where capability exists.
• Re-check light-load and outage conditions separately.

Software cues

• PowerWorld, PSLF, and PSSE: adjust shunts, taps, and generator controls, then re-solve.
• OpenDSS: regulators, capacitor banks, and inverter controls come before feeder rebuilds.
• pandapower: shunts, tap settings, and generator Q support are the first levers.
• PyPSA or Egret: use them to screen dispatch or transfer fixes, then validate voltage with an AC tool.

Deliver

• The violated buses and condition.
• The mitigation sequence tried or recommended.
• The first action that clears the issue without creating a worse one.