中文摘要：

针对高穿透风电功率难以有效消纳的困境,提出了一种计及储能的风电平衡区域电网优化划分方法。研究了储能对风电平衡区域划分的影响因素,建立了负荷主导特征指标、系统调峰裕度与外送通道建设成本的数学模型,在此基础上提出风电平衡区域电网划分方法;同时,提出了储能消弭风电波动与负荷削峰填谷的充放电控制策略,进一步建立了计及储能的风电平衡区域电网优化划分的数学模型及划分流程。结合两者的安全与经济性对比结果,最终确定风电平衡区域电网优化划分的方案。最后基于某区域电网的算例仿真,验证了所提方法可有效提高风电消纳能力。

英文摘要：

For local power grid with high penetration of wind power it is difficult to effectively accommodate the wind power. An optimized partitioning method balancing wind power in local power grid considering energy storage system is proposed in this paper. Factors of energy storage system influencing partition of local wind power balance are studied and a mathematical model is established, including dominant load characteristic index, peak-shaving margin in system and annual average cost of external transmission channel construction. On this basis, a new partitioning method balancing wind power in local power grid is proposed. Charging and discharging control strategy of energy storage to stabilize wind power fluctuations and peak load shifting is also put forward. Further, mathematical model and optimized partitioning process balancing wind power in local power grid considering energy storage system are established. Ideal scheme for optimized partition of local power network with wind power balance is obtained by comparison of their safety and economy. Finally, it is verified that the method can effectively improve wind power accommodation ability through example simulation based on an actual local power grid.