基于复杂网络的风电消纳能力评估模型改进

Wind Power Accommodation Capacity Evaluation Model Based on Complex Network

传统风电消纳评估方法仅针对电网耗能量进行评估,未对影响电网的其他因素进行综合评估,评估效果较差。提出基于复杂网络的风电消纳能力评估模型进行改进。给出风电消纳能力评估的流程,将当前工作点作为基点,给出符合标准要求的风电消纳的上限值和下限值,获取可靠的风电消纳区间,利用风电消纳区间塑造风电消纳评估的目标函数,对复杂电力网络中的网络能效稳定约束、机组节点出力约束、风电预测约束等方面进行全面验证,评估复杂电网网络特定时间段下的风电消纳能力,完成风电消纳能力评估模型的改进。实验结果表明,所提方法在对电网风电消纳能力进行评估的过程中,具有较高的科学性和实用价值。

Traditional wind power accommodation capacity evaluation methods only focus on power grid energy consumption without consideration of other affecting factors which leads to poor performance. An accommodation capacity evaluation model is proposed based on complex network analysis. The evaluation flowchart is introduced. Based on current operation point, the high limit and low limit of wind power accommodation amount is obtained. The evaluation object function is constructed according to the range shaped by limits. Various aspects, including power network stability constraints, unit output constraint and wind output constraint, are evaluated. Wind power accommodation capacity under specific time period in complex power network are then performed. The experimental results show high practical value of proposed method.