浙江电力

2021, v.40;No.303(07) 6-11

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一种谐波数据存储及责任评估方法
A Method of Harmonic Data Storage and Responsibility Evaluation

吴俊,楼伯良,黄弘扬,马智泉,李培,徐群伟,吕文韬
WU Jun,LOU Boliang,HUANG Hongyang,MA Zhiquan,LI Pei,XU Qunwei,LYU Wentao

摘要(Abstract):

谐波责任划分是谐波治理的基础,电网节点、容量不断增加使得谐波责任划分变得越发困难。为此,提出将图论应用于电网谐波存储和计算并给出具体实现方法。首先,根据现有电网中谐波监测终端不能全覆盖的情况,建立谐波状态评估模型并利用信赖域进行模型求解。然后,给出谐波责任划分的指标谐波贡献度计算方法。最后,在多种线路规模下开展图数据库与关系型数据库运算速度测试,并以浙江电网某220 kV变电站拓扑为例仿真验证所提谐波责任划分算法的正确性。
Harmonic responsibility division is the basis for harmonic governance. However, with the continuous expansion of grid nodes and capacity, harmonic responsibility becomes more and more difficult to divide.For this reason, this paper proposes to apply graph theory to grid harmonic storage and calculation and puts forward specific implementation methods. Firstly, a harmonic state estimation model is established in view of the insufficient coverage of harmonic monitoring terminals, and then the model is solved by trust region algorithm; secondly, it proposes a calculation method of the harmonic contribution of the index of the harmonic responsibility division; finally, it tests the speed of the graph database and the relational database calculation and simulates the topology of a 220 kV substation of Zhejiang power grid to verify the correctness of the harmonic responsibility division.

关键词(KeyWords): 谐波;图数据库;状态评估;信赖域;责任划分
harmonic;graph database;state assessment;trust region;responsibility division

Abstract:

Keywords:

基金项目(Foundation): 国网浙江省电力有限公司科技项目(5211DS180033)

作者(Author): 吴俊,楼伯良,黄弘扬,马智泉,李培,徐群伟,吕文韬
WU Jun,LOU Boliang,HUANG Hongyang,MA Zhiquan,LI Pei,XU Qunwei,LYU Wentao

DOI: 10.19585/j.zjdl.202107002

参考文献(References):

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