Based on indices of electric power quality, we consider power fluctuation an additive index of electric power quality for a wind farm in real conditions.
在电能质量各分项指标的基础上，针对风电场的实际情况，引入了功率波动作为附加的电能质量指标。
2
Voltage fluctuation aroused by fluctuating loads impacts on the operation of electric equipment.
大功率的波动性负荷大量进入电网，引起电压波动，严重影响电气设备运行。
3
Area electric power charge is variable peculiarly with periodic fluctuation.