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。
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。
Area electric power charge is variable peculiarly with periodic fluctuation.
区域电力负荷具有特殊的变化规律。
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