摘要: |
为了得到以负荷为主体的配电网中各功率量的关系,提出了逆向潮流追踪方法。利用功率分布理论,得到了表示每个负荷与对应损耗之间关系的功率链和每个负荷与对应汲取功率之间关系的功率流。给出正弦稳态形式的负荷—损耗分布系数、负荷—汲取功率流分布系数。将该方法应用到一典型的14节点配电网,得到各功率量的和与网络原有功率量相等的结论。算例分析结果表明,单电源网络中正弦稳态功率按照阻抗匹配原则来分配。 |
关键词: 配电网 功率量 潮流追踪 逆向追踪 阻抗匹配 |
DOI:10.7667/j.issn.1674-3415.2014.14.014 |
投稿时间:2013-09-30修订日期:2014-01-16 |
基金项目: |
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Method for backward power flow tracing of power quantities of distribution network |
WU Xu-yang,BAO Hai |
(School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China) |
Abstract: |
Method of backward power flow tracing is proposed for getting the relationship of each power quantity in distribution network. This paper gets power chain containing the relationship between each load and corresponding loss and power stream covering the relationship between each load and extracted power utilizing the theory of power distribution. Load-loss distribution coefficient, and load-extracted power flow distribution coefficient are given in the form of sinusoidal steady-state. This method is adopted to a typical 14-node distribution network, getting the conclusion that the sum of each power quantity equaling to the origin power quantity. Case study shows that in the single source power network, sinusoidal steady-state power follows the principle of impedance matching. |
Key words: distribution network power quantities power flow tracing backward tracing impedances matching |