Modeling and Simulation Testing of Photovoltaic Power Plants in EMTP® Software in Compliance with the Mexican Grid Code

The paper outlines the development and validation of detailed models for Photovoltaic Power Plants using EMTP software to ensure compliance with the Mexican Grid Code. A detailed plant model is initialized to confirm correct operation without power or voltage disturbances, and then exercised through compliance‑oriented scenarios: active power control is evaluated via step and ramp changes to confirm setpoint tracking, while reactive power and power‑factor control modes are exercised to meet strict steady‑state tolerances and response‑time criteria, and voltage control across a 0.95–1.05 p.u. setpoint range. The study also applies frequency‑deviation tests by enabling over‑frequency and under‑frequency modes in the PPC, using selected deadbands and slopes while holding active power at 0.8 p.u. during the procedure to evaluate primary frequency regulation performance. - Edgar Medina, Ampere