Investigating the Impact of Electrical Load Types on the Frequency Response of Low Inertia Power Systems

Abstract

In the contemporary power system landscape, characterized by a significant integration of renewable resources and the proliferation of inverter-connected devices, system inertia is on a declining trajectory. In this evolving scenario, the influence of various load types on system frequency becomes significant. In this regard, it seems that a comprehensive study on the effect of load types on the system’s frequency is missing in the literature. Hence, this paper aims to fill this gap by aggregating various load models known to affect system frequency and subsequently assessing the influence of each load type on the power systems’ frequency response. To achieve this, the IEEE 30-bus test system is employed to investigate the impact of different load parameters and their penetration levels on the systems’ frequency response.

Keywords

• Dynamic load models
• frequency-dependent models
• frequency response
• load modeling
• static load models
• time delayed loads