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    • 2. 发明授权
    • Apparatus for controlling converter having self-arc-extinction elements
    • 用于控制具有自消弧元件的转换器的装置
    • US5621633A
    • 1997-04-15
    • US429503
    • 1995-04-26
    • Kenichi TanomuraYoichi Uemura
    • Kenichi TanomuraYoichi Uemura
    • H02J3/36H02M7/145H02M7/493H02M7/537H02H7/12
    • H02M7/145
    • A converter control apparatus is configured by a converter magnetic deflection quantity calculation portion for detecting an electricity quantity necessary to calculate a magnetic deflection of an iron core in a converter, a system side direct current component correction controller for calculating a reference value of the direct current component of an output voltage of the converter on the basis of the detected electricity quantity, a converter output direct current component calculator for calculating an output voltage direct current component of the converter on the basis of an electricity quantity which is previously detected and necessary to obtain an output voltage direct current of the converter, a converter output voltage direct current correction controller for inducing an electric quantity for correcting the output voltage of the converter on the basis of a difference between the calculated output voltage direct current component and the reference value of the output voltage direct current component, thereby performing a protective countermeasure for an over-current caused by the magnetic deflection of the converter.
    • A转换器控制装置由转换器磁偏转量计算部分构成,用于检测计算转换器中铁芯的磁偏转所需的电量,系统侧直流分量校正控制器,用于计算直流电的参考值 基于检测到的电量的转换器的输出电压的分量;转换器输出直流分量计算器,用于基于预先检测并且必须获得的电量来计算转换器的输出电压直流分量 转换器的输出电压直流电流,转换器输出电压直流校正控制器,用于基于所计算的输出电压直流分量与所述转换器的参考值之间的差异,感应用于校正所述转换器的输出电压的电量 输出电压 直流分量,从而对由转换器的磁偏转引起的过电流进行保护对策。
    • 3. 发明授权
    • Power system stabilizer for generator
    • 发电机动力系统稳定器
    • US5698968A
    • 1997-12-16
    • US559486
    • 1995-11-15
    • Yasuo TakagiYoshitaka SakakiShinichiro TakahashiKozo TakagiYoichi UemuraYasuyuki Miyazaki
    • Yasuo TakagiYoshitaka SakakiShinichiro TakahashiKozo TakagiYoichi UemuraYasuyuki Miyazaki
    • H02P9/10
    • H02P9/105
    • To improve the resistance against external low-frequency disturbance (represented by generator output change), the power system stabilizer for a generator, for inputting a voltage regulating signal (e), as an auxiliary signal, to an automatic voltage regulator to control a generator terminal voltage at a target voltage (V.sub.o), comprises: an angular acceleration observer for calculating an estimated angular acceleration change rate (.DELTA.as) of the generator on the basis of at least one of stabilizing signal change rates (.DELTA.P and/or .DELTA..omega.) of the generator; and a power stabilizer circuit for calculating a corrected voltage regulating signal (e) applied to the automatic voltage regulator on the basis of the estimated angular acceleration change rate value (.DELTA.as) calculated by the angular acceleration observer. Further, it is preferable to provide a plurality of observers and a plurality of power stabilizer circuits, separately for each fluctuation frequency.
    • 为了提高外部低频干扰(由发电机输出变化表示)的电阻,用于将用于输入电压调节信号(e)作为辅助信号的发电机的电力系统稳定器提供给自动电压调节器以控制发电机 目标电压(Vo)的端子电压包括:角加速度观测器,用于基于稳定信号变化率(DELTA P和/或DELTA)中的至少一个来计算发电机的估计角加速度变化率(DELTA as) 欧米茄)发电机; 以及功率稳定器电路,用于基于由角加速度观测器计算的估计角加速度变化率值(DELTA as)来计算施加到自动电压调节器的校正电压调节信号(e)。 此外,优选为每个波动频率分别设置多个观察者和多个功率稳定器电路。