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公开(公告)号：US4384246A
公开(公告)日：1983-05-17
申请号：US229791
申请日：1981-01-30
IPC分类号： H02H7/06
CPC分类号： H02H7/06
摘要： A voltage source is connected in series with the neutral secondary winding on a generator step-up transformer through an electrical reactance. A control circuit and a pair of thyristor banks are employed to apply the voltage source to the transformer winding to dampen sybsynchronous resonance currents and to prevent torsional mode vibrations from occurring within the generator.
摘要翻译： 电压源通过电抗将与中性二次绕组串联连接在发电机升压变压器上。 采用控制电路和一对可控硅组件将电压源施加到变压器绕组上以抑制同步谐振电流并防止在发电机内发生扭转振动。
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公开(公告)号：US5227713A
公开(公告)日：1993-07-13
申请号：US883474
申请日：1992-05-15
CPC分类号： G05F1/20 , H02J3/1814 , H02J3/1878 , H02J3/24 , H02P13/06 , H02P9/105 , Y02E40/14 , Y02E40/18 , Y02E40/30
摘要： A subsynchronous resonance mitigation system, including a method and apparatus, for damping undesirable subsynchronous resonance oscillations in a generator, which, if left unchecked, may damage the shafts of a turbine-generator set. A remote coupling apparatus, such as a thyristor controlled series capacitor (TCSC) system, a sourced inverter device, or a static phase shifter, is coupled to the generator by a transmission line. In response to a firing command, the coupling apparatus introduces subsynchronous resonance mitigating currents into the transmission line. Sensors monitor power line parameters and/or the generator speed, and in response thereto, a higher-level controller generates a voltage command. A vernier controller responds to the monitored power line parameters and the voltage command to provide the firing command to the coupling apparatus.
摘要翻译： 一种次同步谐振抑制系统，包括用于阻尼发电机中的不期望的次同步谐振的方法和装置，其如果不加以检查，可能损坏涡轮发电机组的轴。 诸如可控硅控制串联电容器（TCSC）系统，源逆变器装置或静态移相器之类的远程耦合装置通过传输线耦合到发电机。 响应于点火命令，耦合设备将次同步谐振抑制电流引入传输线。 传感器监测电力线参数和/或发电机速度，响应于此，较高级别的控制器产生电压指令。 游标控制器响应受监控的电力线参数和电压指令以向联接装置提供点火命令。
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