Impact of Synchronous Condenser Thermodynamic Performance on Power Grid Frequency Stability

As the proportion of renewable energy in power systems continues to increase, the frequency stability of the power grid faces unprecedented challenges.Synchronous condensers, as key devices for frequency regulation and load balancing, directly influence the operational safety and stability of the power grid.However, existing research primarily focuses on the electrical performance analysis of synchronous condensers, with limited attention paid to their thermodynamic performance, particularly the impact of temperature fields on equipment losses and frequency stability.The internal temperature variations in synchronous condensers not only affect the loss levels but also alter the electrical characteristics of the equipment, thereby significantly impacting the grid's frequency regulation.Therefore, studying the thermodynamic performance of synchronous condensers and its effect on grid frequency stability is of great theoretical and practical importance.Current domestic and international research on synchronous condensers mainly focuses on electromagnetic field analysis and dynamic characteristics, with limited exploration of thermodynamic properties and temperature effects.Most existing methods neglect the comprehensive impact of temperature on synchronous condenser performance, leading to insufficient understanding of its behavior and stability in real-world operations.In particular, under complex grid operating conditions, traditional methods struggle to fully consider the potential impact of temperature field variations on frequency stability.Hence, in-depth research on the thermal effects of synchronous condensers and their role in grid frequency stability has become a key solution to this problem.This paper, based on the thermodynamic performance of synchronous condensers, investigates their impact on power grid frequency stability.The specific research includes loss calculations of synchronous condensers, two-dimensional electromagnetic field simulations considering material temperature effects, and the development of computational fluid dynamics (CFD) models for temperature field simulations.Through these studies, the paper aims to provide theoretical support for optimizing the design and regulation strategies of synchronous condensers and offer new ideas and methods for improving power grid frequency stability.