电能质量监测系统设计方案目 录工程概况................................................................11 电能质量参数..........................................................11.1 电能质量概念..................................................……11.2 电能质量的特点....................................................21.3 电能质量指标......................................................21.4 影响电能质量的因素................................................31.5 电能质量低下的危害................................................32 电能质量标准..........................................................32.1 电压允许偏差......................................................42.2 公用电网谐波......................................................42.3 电压波动和闪变....................................................42.4 三相电压不平衡....................................................52.5 电网频率..........................................................52.6 临时过电压和瞬态过电压............................................53 谐波危害与治理.......................................................53.1 谐波的定义........................................................53.2 谐波源............................................................63.3 用于谐波分析的 DFT 和 FFT 算法......................................73.4 谐波治理的基本方法...............................................124 LABVIEW 虚拟仪器技术...............................................144.1 概述.............................................................144.2 LabVIEW 的特点...................................................154.3 LabVIEW 各部分功能...............................................164.4 LABVIEW 参数的监测技术...........................................164.5 频率跟踪技术.....................................................175 电能质量监测系统设计方案...........................................185.1 硬件部分.........................................................185.2 软...
