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1. 发明授权

US4463306A System for stabilizing synchronous machines 失效
标题翻译：用于稳定同步电机的系统
公开(公告)号：US4463306A
公开(公告)日：1984-07-31
申请号：US301445
申请日：1981-09-11
申请人： F. Paul de Mello , Louis N. Hannett , David W. Parkinson , John S. Czuba
发明人： F. Paul de Mello , Louis N. Hannett , David W. Parkinson , John S. Czuba
IPC分类号： H02P9/10 , H02P9/30
CPC分类号： H02P9/105
摘要： A microprocessor based, power systems stabilizer operating through excitation control wherein all required stabilizing information is derived from sampled values of voltage and current taken from potential and current transformers. The instantaneous values of terminal voltage and current are processed using algorithms in the accelerating power signal digital processor portion of the microprocessor to thereby develop a value of instantaneous internal voltage, the value of slip frequency of such voltages in relation to rated frequency and a digitally filtered value of electrical power. The accelerating power is calculated from the rate of change of slip and electrical power. The values of accelerating power are processed with digital algorithms in a stabilizing signal compute section of the microprocessor to yield a stabilizing signal which provides the desired modulating action for damping the machine oscillations of the synchronous generator. This modulating action is provided by switching the taps in an autotransformer being supplied from the potential transformer secondary measuring generator terminal voltage and feeding the voltage regulator and exciter for the generator. The selection of taps on the autotransformer is controlled by the microprocessor based stabilizer system at an appropriate rate, such as every one to ten milliseconds.
摘要翻译：基于微处理器的电力系统稳定器通过励磁控制器工作，其中所有需要的稳定信息是从电压和电流互感器采集的电压和电流的采样值得出的。使用微处理器的加速功率信号数字处理器部分中的算法来处理端电压和电流的瞬时值，从而开发瞬时内部电压的值，这些电压相对于额定频率的转差频率值和数字滤波电力价值。加速功率由滑差和电功率的变化率计算。加速功率的值在微处理器的稳定信号计算部分中用数字算法处理，以产生稳定信号，其提供用于阻尼同步发电机的机器振荡的期望的调制作用。通过切换从变压器二次测量发生器端子电压提供的自耦变压器中的抽头来提供该调制动作，并为发电机馈送电压调节器和励磁器。自耦变压器上的抽头选择由基于微处理器的稳定器系统以适当的速率（例如每1到10毫秒）来控制。

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