华东电网新能源主动频率支撑能力的试验分析及应用探讨

With increasing new energy capacity and HVDC import ratio, frequency stability in East China Grid has become more complex. Based on the Sep. 29, 2021 field test, this paper analyzes primary frequency regulation performance of wind, BESS, wind-storage, and thermal-storage units under real disturbances, confirming improved fast response after retrofitting. It evaluates adaptability of current active frequency support for future grid stability and proposes research directions.

随着新能源装机容量及区外直流馈入占比逐年提高,华东电网频率稳定问题日益复杂和严峻.针对华东电网2021年9月29日开展的新能源主动频率支撑能力试验,分析了华东电网实际扰动下风电、储能、风储、火储等多类发电资源的一次调频性能.试验表明,改造后的新能源机组普遍具有较好的快速调频能力.结合华东电网频率特性演化趋势,探讨了现有新能源主动频率支撑能力对改善未来华东电网频率稳定水平的效果和适应性,并提出了后续的研究建议,为进一步针对性提升华东地区新能源主动频率支撑能力提供了决策支持.