考虑风电有功主动控制的两阶段系统备用双层优化模型

发布时间：2018-02-25 16:26

本文关键词： 风电并网主动功率控制备用计划降载运行　出处：《电力系统自动化》2016年10期 　论文类型：期刊论文

【摘要】：首先探讨了风机降载运行模式具备的有功调节与备用能力,并引入风电降载比定量描述风电备用持有水平。其次,提出了一种考虑风电有功降载运行的两阶段系统备用计划双层优化模型。上层模型的目标为事前阶段的系统运行计划成本最小;下层目标为实时阶段的计划偏差最小,通过引入风电降载比耦合关联上下层模型。进一步,引入KKT条件将双层模型转化成单层模型以求取最优解。最后,采用改进的IEEE 6机30节点算例验证所提出模型的有效性,结果表明风电渗透率较高的系统中,风电场有功降载运行能够降低传统机组的备用容量压力,减少风电场功率输出波动,提高风电接入系统的整体经济性。
[Abstract]:First discusses the active power regulation of wind machine load operating mode equipped with spare capacity, and the introduction of wind load reduction than the quantitative description of wind power reserve holdings. Secondly, we proposed a model of wind power active load reduction operation plan two stage system optimization model. The model of the target is the minimum advance stage system operation cost; lower target plan deviation real-time stage minimum, through the introduction of wind load reduction than the lower model coupling. Further, the introduction of KKT double model is transformed into the optimal solution for the single-layer model. Finally, the validity of the improved IEEE 6 machine 30 node example to verify the proposed model. The results show that the system with high penetration of wind power, wind farm active load reduction operation can reduce the pressure of the traditional unit reserve capacity, reduce the wind power output fluctuation, improve the wind power system The overall economy.

【作者单位】：浙江大学电气工程学院;浙江省海洋可再生能源电气装备与系统技术研究重点实验室;国网浙江省电力公司经济技术研究院;
【基金】：国家自然科学基金资助项目(51277160)~~
【分类号】：TM614

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