Regional Power Grid Automatic Generation Control Strategy Considering Energy Storage Participation

ObjectivesTo address the coordination issue of frequency regulation resources such as energy storage, coal-fired units, and gas-fired units for area regulation requirement (ARR) allocation in power grids, a control strategy considering energy storage participation in regional power grid automatic generation control (AGC) is proposed.MethodsFirst, the regulation requirements of the regional power grid are divided into four zones: normal, sub-emergency, emergency, and dead zones. Then, based on large-scale energy storage ARR allocation, the regulation power of energy storage in AGC is calculated, and a balanced distribution strategy for state of charge (SOC) among energy storage stations is optimized. Finally, a priority rule is designed to prioritize energy storage system response under emergency conditions, ensuring effective coordination of frequency regulation resources.ResultsCase analysis with actual data from a specific region shows that this strategy outperforms traditional AGC methods in terms of control performance standard (CPS) indicator and frequency control accuracy, verifying the effectiveness of the proposed strategy.ConclusionsThis strategy effectively addresses the coordination of multiple control resources in frequency regulation, provides strong support for enhancing power grid stability and frequency regulation performance, and is of great significance for improving the reliability and stability of power grid operation.