摘要
在低压配电网中单相负荷的随机性和不确定性导致电网的电能质量问题愈发严重,针对三相电压不平衡对电网带来的安全稳定问题越来越凸显,着眼于三相电压不平衡产生的原因及现状分析,探讨提高检测不平衡电流的精度和速度的方法,以便对三相电压不平衡进行更好的治理,同时提高电力系统电能质量,确保电网安全稳定运行。
The randomness and uncertainty of the single-phase load in the low-voltage distribution network lead to more serious power quality problems in the power grid.Aiming at the increasingly prominent safety and stability problems brought by three-phase voltage imbalance to the power grid,focusing on the analysis of the causes and current situation of three-phase voltage imbalance,the method of improving the accuracy and speed of detecting unbalanced current is discussed,so as to better control the three-phase voltage imbalance,improve the power quality of the power system,and ensure the safe and stable operation of the power grid.
作者
宋朋骏
蒋晓艳
赵一霖
谭景洋
焦乾致
蔡雷
SONG Pengjun;JIANG Xiaoyan;ZHAO Yilin;TAN Jingyang;JIAO Qianzhi;CAI Lei(College of Water Conservancy and Civil Engineering,Agriculture and Animal Husbandry College of Xizang,Nyingchi 860000,China;College of Electrical Engineering,Agriculture and Animal Husbandry College of Xizang,Nyingchi 860000,China;Electric Power Research Institute,State Grid Xizang Electric Power Co.,Ltd.,Lhasa 850000,China)
出处
《电工技术》
2023年第9期70-74,共5页
Electric Engineering
基金
2022年度西藏自治区自然科学基金
西藏农牧学院水利土木电力工程技术研究中心重点项目(编号XZ2022-01ZR0052G)。
关键词
低压配电网
三相电压不平衡
不平衡电流检测
low-voltage distribution network
three-phase voltage unbalance
unbalanced current detection
