Optimization Method of Active Frequency Support Control Parameters for Large-scale Renewable Energy Bases

As the construction of large-scale renewable energy bases progresses, the risk of power system frequency instability also increases. Reasonable settings of frequency regulation parameters are beneficial for improving the active frequency support effect of these bases. This paper investigates an optimization method for the active frequency support control parameters of large-scale renewable energy bases. Firstly, considering the impact of the interconnection between large-scale renewable energy bases and the sending-end power grid on the system's frequency response characteristics, a frequency dynamic model for large-scale renewable energy bases interconnected with the sending-end grid is established. Subsequently, given the multiple control levels within large renewable energy bases, an optimization model for aggregated frequency regulation parameters at the base level is constructed, taking into account both frequency regulation benefits and economics. Additionally, a distribution model for frequency regulation parameters at the station level is developed to achieve coordinated utilization of frequency regulation resources among various stations within the base. Finally, numerical examples are designed to verify the effectiveness of the proposed models and algorithms in supporting power grid frequency stability.