This paper proposes an approach for the allocation of reactive power sources by using voltage deviation with small disturbance.
提出了一种利用小扰动电压偏离配置无功源的方法。
At present, our country power quality national standard was chiefly stipulated five quotas: frequency, harmonic and voltage deviation, three-phase unbalance and the voltage fluctuation and flicker.
目前我国电能质量国家标准主要规定了五个指标：频率、谐波、电压偏差、三相不平衡及电压波动与闪变。
Such problems as the attenuation of DC elements and Sine waveform, voltage sag and frequency deviation should be taken into account in order to analyze the transient process in the power system.
要分析电网的暂态特性，还必须考虑衰减直流分量和衰减正弦波，以及电压缺口和频率偏移等问题。
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