Volume 59

Enhancing Power System Frequency Resilience to Extreme Weather through Photovoltaics and Integrated Flexible Direct Current Buildings Taoyi Qi, Hongxun Hui, Liang Gao

Abstract

As the climate changes, the energy flexibility of urban buildings is becoming increasingly critical for the energy transition. The integration of emerging technologies, photovoltaics, energy storage, direct current, and flexibility (PEDF), can empower buildings to accelerate their decarbonization and enhance power system resilience against extreme weather. This study first develops models for the critical components within PEDF buildings, to capture the voltage dynamics of the distribution system and the thermal dynamics of indoor environments. Then, a rolling optimization framework is implemented to schedule energy dispatch from the main grid and energy storage systems, aiming to minimize operation costs. After that, droop control is integrated to provide active frequency support, incorporating a strategy for determining the optimal droop coefficient. Finally, numerical studies are conducted to test the effectiveness of the proposed approach.

Keywords Frequency resilience, urban buildings, direct current distribution, power systems