含多类型分布式电源的源网荷协调优化控制策略分析

为了降低规模化分布式电源接入对原电网影响,提高源网多元利用效率,文中通过分析含分布式电源的多级能源互动场景,制定主网、配网、馈线、台区多空间尺度以及短期、超短期、准实时多时间尺度互动机制,建立含大型风电厂、燃气轮机和集中式大容量储能等分布式电源的源网多元互动协调优化控制模型。该模型以有功功率波动最小、系统网损最小、经济效益最大为目标函数,并设定节点潮流、风燃出力等约束条件。以上海崇明岛为例设定源网多元智能协调优化控制应用场景,仿真验证多空间尺度的短期、超短期及准实时优化效果,为规模化分布式电源的接入提供优化控制依据。

Analysis of the Optimal Control Strategy for Source Network Load with Multi-type Distributed Power Source

In order to reduce the impact of scaled distributed power access on the original grid and improve the multiple utilization efficiency of the source grid.In this paper,by analyzing the multi-stage energy interaction scene with distributed power supply,the multi space scale of main network,distribution network,feeder and platform area,and short-term,ultra short term,quasi real time multi time scale interaction mechanism are formulated,a multi-source interactive coordinated optimal control model for distributed power supply including large wind power plants,gas turbines and centralized large capacity energy storage is established.The objective function of the model is the minimum active power fluctuation,the closest network loss and the largest economic benefit.The model sets constraints such as node power flow,wind power,and so on.Taking Chongming Island in Shanghai as an example,the multi intelligence coordinated optimization control application scene of source network is set up to simulate and verify the short-term,super-short-term and quasi-real-time optimization effects of multiple spatial scales,and to provide optimized control basis for the access of large-scale distributed power supply.