Frequency Response Study on the ERCOT under High Photovoltaic (PV) Penetration Conditions

TL;DR

This study analyzes how increased photovoltaic penetration affects the frequency response of the ERCOT power system, using validated dynamic models and simulations to understand system stability under high PV conditions.

Contribution

It provides a validated dynamic model of ERCOT and assesses the impact of high PV penetration on system frequency response through detailed simulations.

Findings

High PV penetration alters frequency response characteristics.

Validated dynamic model accurately reflects real system behavior.

Simulation results inform grid stability strategies under high PV conditions.

Abstract

Solar photovoltaic (PV) generation is growing rapidly around the world. However, PV generation, based on inverter, is fundamentally different from conventional synchronous generators. It is of vital importance to understand the impacts of increased penetration of PV generation on power system dynamic performance. This paper investigates frequency response of the Electric Reliability Council of Texas (ERCOT) with high PV penetration in the future year. In this work, a realistic baseline dynamic model is validated using synchrophasor measurements. Then, dynamic simulation is performed to evaluate the impacts of high PV generation on frequency response.