建筑供电电能质量现状研究

摘要

对现代建筑供电电能质量现状作了调查研究,分析了产生供电电能质量问题的原因,并给出了具体的措施。建筑供电的质量问题主要是谐波,电压波形一般是接近正弦的,但电流波形畸变较严重,且电流中含有大量3次、5次谐波,偶次谐波很小,甚至可以忽略;中性线上的电流主要是3次谐波电流。高压侧的背景谐波畸变水平一般比较低,能满足谐波国标的要求。%The present situation of power quality in building power supply was investigated and studied.The reason about the power quality problems in building power supply was analyzed,and the solve measurements were given.The results indicated that the main proble