摘要
根据电能质量的国家标准,通过建立电路模型对采用20 kV供电和10 kV供电系统时,非线性负荷及不平衡负荷对配电网的电压质量进行了比较分析,结果表明采用20 kV供电时,非线性负荷及不平衡负荷所引起的电压谐波含有率和电压不平衡度都小于或等于采用10 kV供电时的一半。
According to the power quality national standard,the 10kV and 20kV power supply systems are established,power quality influenced by non-linear loads and unbalanced loads of each system are analyzed and compared.The results show that the percent harmonic distortion and voltage imbalance caused by non-linear and unbalanced loads in 20kV system are less than or equal to the half of those in 10kV system.
出处
《江苏电机工程》
2011年第3期35-37,共3页
Jiangsu Electrical Engineering
关键词
配电网
电能质量
谐波畸变
不平衡度
distribution network
power quality
percent harmonic distortion
imbalance
