| 低压配电网三相不平衡运行的影响及治理措施 |
| |
| 引用本文： | 林志雄,陈岩,蔡金锭,李天友. 低压配电网三相不平衡运行的影响及治理措施[J]. 电工标准与质量, 2009, 0(3) |
| |
| 作者姓名： | 林志雄 陈岩 蔡金锭 李天友 |
| |
| 作者单位： | 福州大学电气与自动化工程学院;福建省电力有限公司邵武供电局;福建省电力有限公司; |
| |
| 基金项目： | 福建省自然科学基金(A0710003); 福建省教育厅科学基金(JB06045) |
| |
| 摘 要： | 我国低压配电系统大都采用三相四线制Y/Yno(Y/Y)接线方式,由于单相负载的不均衡性等原因,造成配电变压器处于三相不平衡运行状态.从电能质量的角度分析不平衡运行所造成的三相电压不平衡及其危害,详细分析和推导三相不平衡所带来的配变损耗和线路损耗,并针对低压配网的三相不平衡问题提出了管理和技术上的治理措施.
|
| 关 键 词： | 配电网 三相不平衡 电能质量 线损 |
Impact and countermeasure of three-phase unbalanced operation for low voltage distribution systems |
| |
| LIN Zhi-xiong,CHEN Yan,CAI Jin-ding,LI Tian-you. Impact and countermeasure of three-phase unbalanced operation for low voltage distribution systems[J]. Journal of Changsha University of Electric Power(Natural Science Edition), 2009, 0(3) |
| |
| Authors: | LIN Zhi-xiong CHEN Yan CAI Jin-ding LI Tian-you |
| |
| Affiliation: | LIN Zhi-xiong1,CHEN Yan2,CAI Jin-ding1,LI Tian-you3(1.College of Electrical Engineering , Automation,Fuzhou University,Fuzhou 350002,China,2.Shaowu Power Supply Bureau,Fujian Electric Power Compang Limited,Shaowu 354000,China3.Fujian Electric Power Company Limited,China) |
| |
| Abstract: | Most of Chinese low-voltage distribution systems use three-phase four-wire Y/Yno(Y/Y) connection mode.The transformer unbalanced operation state is often caused by single-phase loads.The three-phase voltage imbalance and its impact to power quality are analyzed in this paper.Distribution transformer losses and line losses caused by the imbalance are investigated in detail.Some managing and technical countermeasures for the imbalance are also proposed. |
| |
| Keywords: | distribution systems three-phase unbalanced power quality line loss |
| 本文献已被 CNKI 等数据库收录！ |
|
