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电压波动
    Effect of Network Voltage Fluctuating on Float Glass Production
    电网电压波动对浮法生产的影响
    The power quality include frequency, harmonics wave, voltage deviation, voltage dip and rising, voltage fluctuating and flashing, unbalance of three kinds of voltage and voltage's changing, specially, with application of advanced digital AC varied -speed system in industry, the influence of harmonics it produced to the public power system can't be ignored.
    电能质量包括频率、谐波、电压偏差、电压跌落与上升,电压波动与闪变、三相电压不平衡度和电压瞬变。 特别是随着先进的数字式交流调速系统在工业上的广泛应用,其产生的高次谐波对公用电网的影响越来越不可忽视。
    The power quality include frequency, harmonic wave, voltage deviation, voltage dip and rising, voltage fluctuating and flashing, unbalance of three kinds of voltage and voltage's changing.
    电能质量包括频率、谐波、电压偏差、电压跌落与上升,电压波动与闪变、三相电压不平衡度和电压瞬变。
    It has been demonstrated that the astable oscilla-tor is able to meet the requirements of high speed spinning machine for frequency. Asthe supply voltage fluctuating at ±10% and the ambient temperature varying between15℃—35℃,its variation of frequency does not exceed 0.3%.
    实用表明已能满足高速纺丝机对电源频率精度的要求:当电网电压波动±10%,室温有±10℃变化(室温25℃)时,频率变化不超过0.3%。
    The allowable line voltage fluctuating range of the designed voltage regulator is wider, while the output voltage fluctuating range is smaller.
    本调压器容许的电网电压波动范围较宽 ,而输出电压波动范围较小。
    Simulation results show that this method has good performances of detection and time-frequency analysis, and it is very applicable in the detection of the sharp and non-stationary voltage fluctuating,and flicker signals.
    仿真结果表明,该方法对电压闪变信号检测和时频分析性能良好,特别适用于突变的、非平稳的电压波动与闪变信号的检测。
    As voltage fluctuating is serious in the independent small rating power system, the traditional active power filter (APF) which is used in the large rating power system no longer performs well.
    独立小电网中电压波动比较剧烈,用于大电网系统的传统有源电力滤波器在独立小电网工况下不能很好地工作。
    The experimental results also demonstrate the APF with a voltage feed-forward control has good steady-state performance, and is not sensitive to the voltage fluctuating.
    最后通过实验验证了带电压前馈的有源电力滤波器具有较好的静态补偿效果,且对电网电压波动不敏感,完全可以应用于电压波动比较剧烈的独立小电网系统。
    As voltage fluctuating is serious in the independent small rating power system,so the traditional Active Power Filter (APF) which is used in the large rating power system no longer performs well.
    传统的有源电力滤波器Active PowerFilter,简称APF)用于电网电压波动较小的大电网系统时具有良好的补偿性能,但用于电压波动比较剧烈的独立小电网时会产生一些问题。
    In this paper,the influence on APF caused by the voltage fluctuating is analyzed,and a PI current regulator instead of P current regulator is proposed.
    对此,文中分析了电网电压波动对APF 的影响,提出了将电流调节器由传统的P 调节器改为PI调节器的控制策略。
    As analyzed,it can well restrain the influence on APF caused by the voltage fluctuating.
    把电流环调节器改为PI调节器,基本不影响APF 跟踪补偿指令的性能,却能大大降低电压波动对APF 的影响。
    The experimental results also demonstrate the APF with PI current regulator has good steady-state performance,and is not sensitive to the voltage fluctuating.
    通过实验验证,把电流环调节器改为PI调节器的APF 具有较好的静态补偿效果,且对电网电压波动不敏感,完全可用于电压波动比较剧烈的独立小电网系统。
    The influence on APF caused by the voltage fluctuating is analyzed,and also proposes a voltage feed-forward control method to effectively restrain the influence on APF caused by the voltage fluctuating.
    针对电网电压波动对有源滤波器工作性能的影响进行了具体的分析,并提出了利用电网电压前馈的控制方式来有效地抑制电网电压波动对APF的影响。
 

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