This algorithm needs shorter data window time and has higher calculation precision and is not affected by deviation of power frequency.
这种算法具有所需数据窗的时间短、计算精度高和不受系统频率偏差影响的优点。
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。
Amplitude deviation, frequency deviation and phase deviation are basic power quality disturbances.
电力系统基波幅值、相位、频率扰动是最基本的电能质量扰动。
Transmitter has a high frequency stability and big FM deviation and can also operate under the changing of power supply voltage in the range of. 30%.
其发射机频率稳定度高，调制频偏大，在电源电压变化约30%的条件下亦能稳定工作。
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。
The power quality is denoted by the deviation of voltage, current or frequency, which makes electric equipments not work proper.
电能质量是指引起用电设备故障或不能正常工作的电压、电流或频率的偏差。
The power quality is denoted by the deviation of voltage, current or frequency, which makes electric equipments not work proper.
电能质量是指引起用电设备故障或不能正常工作的电压、电流或频率的偏差。
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