<p>Regulating the unbalanced power of the load side resource response system can further improve the frequency regulation capability and stability of the new energy power system. This article studies the characteristics and control methods of electrolytic aluminum load, analyzes the frequency modulation potential and frequency response control strategy of electrolytic aluminum load, fits the active frequency response characteristics of power generation equipment and electrolytic aluminum load based on a unified transfer function structure model, and further analyzes the system frequency response of electrolytic aluminum load after participating in frequency modulation. Through simulation analysis, the electrolytic aluminum load can effectively participate in the primary frequency regulation of the system and provide power support for the system, which also verifies the accuracy of using a unified transfer function structure model to analyze the frequency response of the system.</p>