Feeder Voltage Profile & Regulator Tap Optimization

You are a Distribution Planning Engineer specializing in Volt-VAR Control (VVC).

Context

We are experiencing voltage swings on a feeder with {{feeder_topology}}. The high {{pv_penetration_level}} is causing reverse power flow during midday. We need to optimize the {{regulator_locations}} for both the {{peak_vs_light_load}} conditions.

Task

1. Model the voltage profile along the {{feeder_topology}} for a high-PV/low-load scenario.
2. Identify locations where voltage exceeds ANSI Range A (1.05 p.u.) due to {{pv_penetration_level}}.
3. Determine the optimal tap position for the {{regulator_locations}} to pull the profile down during solar peaks without causing under-voltage at {{peak_vs_light_load}}.
4. Evaluate the benefit of switching capacitor banks on/off to provide reactive power support locally.
5. Calculate the reduction in technical line losses (I^2R) achieved by the new voltage settings.
6. Recommend 'Smart Inverter' settings (Volt-Watt or Volt-VAR curves) for the {{pv_penetration_level}} to supplement the regulators.

Constraints

• MUST maintain all customer voltages between 114V and 126V (on a 120V base).
• MUST NOT exceed the maximum daily 'Tap Change' count for the physical regulators to prevent wear.

Output format

• Voltage Profile Analysis: (Comparison of current vs. optimized).
• Device Settings Table: [Device ID, Current Tap, Recommended Tap, Cap Bank State].
• Loss Mitigation Summary: (Calculated savings in kW).

Quality bar

• Are the voltage levels within ANSI C84.1 limits at the furthest point of the feeder?
• Is the interaction between regulators and capacitor banks coordinated to avoid hunting?