Journal of Electrical Engineering and Automation

The integration of high-proportion renewable energy poses severe challenges to the frequency stability control of power systems. Due to the volatility and uncertainty of new energy generation such as wind power and photovoltaic (PV), the traditional frequency regulation mechanism relying on synchronous machines faces the risk of failure. This paper analyzes the key technologies for frequency stability control in the context of high-proportion renewable energy integration, focusing on issues such as reduced system inertia, weakened frequency response capability, and insufficient adaptability of control strategies. It systematically reviews the current mainstream countermeasures, including virtual inertia control, fast frequency response technology, and multi-time-scale coordinated control strategies. Constructing a flexible, intelligent, and collaborative frequency stability control system is a critical path to enhancing the resilience of new power systems.

Renewable energy; Frequency stability; Control strategy; Virtual inertia; Multi-time-scale