| 基于负荷功率的三相不平衡度的计算方法 |
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| 引用本文： | 同向前,王海燕,尹军.基于负荷功率的三相不平衡度的计算方法[J].电力系统及其自动化学报,2011,23(2):24-30. |
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| 作者姓名： | 同向前 王海燕 尹军 |
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| 作者单位： | 西安理工大学自动化与信息工程学院; |
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| 基金项目： | 陕西省重点学科建设专项资金资助项目 |
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| 摘 要： | 三相不平衡度的估算是贯彻国家标准、提高电能质量的基础,故提出一种三相三线配电系统中由不对称负荷引起的三相不平衡度的实用计算方法.在引入了三相不对称负荷的序容量的概念之后,负荷电流不平衡度等于负荷负序容量与正序容量之比,由该不对称负荷在某公共连接点引起的三相电压不平衡度等于负荷负序容量与系统短路容量之比;建立了三相不对称...
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| 关 键 词： | 三相负荷序容量 三相不平衡度 不对称负荷 电能质量 |
Calculation Method of three-phase Unbalance Factor Based on Load Power |
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| TONG Xiang-qian,WANG Hai-yan,YIN Jun.Calculation Method of three-phase Unbalance Factor Based on Load Power[J].Proceedings of the CSU-EPSA,2011,23(2):24-30. |
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| Authors: | TONG Xiang-qian WANG Hai-yan YIN Jun |
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| Affiliation: | TONG Xiang-qian,WANG Hai-yan,YIN Jun(School of Automation and Information Engineering,Xi'an Universityof Technology,Xi'an 710048,China) |
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| Abstract: | A practical method for the calculation of unbalance factor caused by asymmetric loads in a three-phase three-wire distribution system was presented.By introducing the term of sequence capacity of an asymmetric load,the current unbalance factor is the ratio of negative-sequence capacity to the positive-sequence capacity of the load,and the voltage unbalance factor at the point of common coupling is the ratio of negative-sequence capacity to the short-circuit capacity of the distribution system.The functional... |
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| Keywords: | three-phase sequence capacity three-phase unbalance factor unbalanced loads power quality |
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