电气技术  2017, Vol. 18 Issue (11): 87-90    DOI:
研究与开发 |
配变三相不平衡整治策略分析
刘小江, 廖文龙, 姚晓, 龚奕宇
国网四川省电力公司电力科学研究院,成都 610072
Analysis on the Regulation Strategy of Three Phase Unbalanced Distribution Transformers
Liu Xiaojiang, Liao Wenlong, Yao Xiao, Gong Yiyu
State Grid Sichuan Electric Power Research Institute, Chengdu 610072
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摘要 三相不平衡问题普遍存在于配电网中,直接增加配网线路损耗,降低经济运行水平。本文以实现三相负荷最优调整为目标,充分利用了配网用电采集系统的数据资源,建立了三相不平衡实用化分析模型,深度分析配变低压侧三相电流特征。综合得出三相不平衡调整的最优方案,确定三相电流最佳调节系数,最大限度减少三相不平衡引起的额外损耗。本方法克服了以往经验法进行三相不平衡调节效果不可控的缺点,解决了基层运维人员在进行三相负荷调整时无据可依问题,可实现计算机大规模自动分析,台区实例分析表明本方法具有较强的实用性。
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关键词 三相不平衡用电采集系统最优改接计算机分析    
Abstract:The problem of three-phase unbalance exists in the distribution network, which increases the distribution line loss and decreases operational economy directly. This paper aims the goal of the implementation of three-phase load optimal adjustment, makes full use of the electricity distribution network data acquisition system resources, establishes an practical analysis model of three-phase unbalance, analyses the characteristics of distribution transformer of the low-voltage-side three-phase current deeply, and makes the optimal adjustment scheme, finally determines the three-phase optimum current adjustment coefficient, minimizes the loss caused by the additional unbalance. This method overcomes the shortcomings of previous empirical method for three-phase unbalance regulation which is uncontrollable, and provides a method of solving three-phase unbalance problem for the basic maintenance personnel. This method can make large-scale computer automatic analysis come trueThe final example shows that this method have good practicability.
Key wordsthree phase unbalance    power acquisition system    optimal modification    computer analysis   
     出版日期: 2017-12-06
作者简介: 刘小江(1986-),男,四川达州人,工程师,硕士,主要研究方向为配网自动化、过电压与接地技术。
引用本文:   
刘小江, 廖文龙, 姚晓, 龚奕宇. 配变三相不平衡整治策略分析[J]. 电气技术, 2017, 18(11): 87-90. Liu Xiaojiang, Liao Wenlong, Yao Xiao, Gong Yiyu. Analysis on the Regulation Strategy of Three Phase Unbalanced Distribution Transformers. Electrical Engineering, 2017, 18(11): 87-90.
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https://dqjs.cesmedia.cn/CN/Y2017/V18/I11/87