主动配电网中分布式电源和微网的运行域

发布时间：2018-05-21 14:49

本文选题：分布式电源 + 主动配电网　；参考：《电网技术》2017年02期

【摘要】：主动配电网以其较强的控制能力可以接纳大量分布式电源(DG),文章在配电系统安全域(distribution system security region,DSSR)的基础上提出了DG及微网的运行域。首先,考虑DG及微网的接入位置、出力大小以及渗透率等因素对配电网的影响,提出了DG及微网运行域的概念:运行域描述了保证配电网安全前提下的DG及微网出力范围,能方便地用于对DG及微网的主动调度。其次,提出了DG及微网运行域的数学模型及计算方法,能计算得到满足电压、潮流等约束下不同类型DG及微网的运行域。最后,利用IEEE 33节点算例,计算得出PQ型和PV型的DG及微网运行域,并与不含DG和微网的负荷运行域进行对比分析,验证了所提方法的有效性。DG或微网的加入导致运行域面积增大,拓扑结构更加复杂;相同条件下,PV型微网比PQ型微网运行域面积更大。
[Abstract]:The active distribution network can accept a large number of distributed power sources because of its strong control ability. Based on the distribution system security region DSSRs of the distribution system security domain, the paper presents the DG and microgrid operation domain. First of all, considering the influence of DG and microgrid access location, force output and permeability on distribution network, the concept of DG and microgrid operating area is put forward: the operation domain describes the DG and microgrid force range under the premise of ensuring the security of distribution network. It can be used for active scheduling of DG and microgrid conveniently. Secondly, the mathematical model and calculation method of DG and microgrid operation domain are proposed, which can be used to calculate the different types of DG and microgrid operating domains under the constraints of voltage and power flow. Finally, with the example of IEEE 33 node, the DG and microgrid operation domain of PQ type and PV type are calculated and compared with the load operation domain without DG and microgrid. The validity of the proposed method. DG or the addition of microgrid leads to the increase of the area of operation area and the complexity of topological structure, and under the same conditions, the area of operation domain of PV type microgrid is larger than that of PQ type microgrid.
【作者单位】：智能电网教育部重点实验室(天津大学);国家电网公司国家电力调度控制中心;国网浙江省电力公司;国网山东省电力公司;
【基金】：国家重点研发计划项目(2016YFB0900103) 国家电网公司科技项目(分布式电源协调优化调度和电压协同控制技术研究及示范应用)(DZ71-16-039) 国家自然科学基金项目(51477112)~~
【分类号】：TM732

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