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公开(公告)号：USD888490S1
公开(公告)日：2020-06-30
申请号：US29635260
申请日：2018-01-30
申请人： Yuansheng Li
设计人： Yuansheng Li
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2.发明授权公开(公告)号：US08504338B2
公开(公告)日：2013-08-06
申请号：US12741509
申请日：2008-11-28
申请人： Xinyan Liang , Shaohua Jiao , Yuansheng Li , Tao Zhang , Quan Liu
发明人： Xinyan Liang , Shaohua Jiao , Yuansheng Li , Tao Zhang , Quan Liu
IPC分类号： G06G7/48
CPC分类号： G01H1/003
摘要： A method for measuring a shafting mechanical fatigue of a turbine generator set, which involves determining a lumped mass model of a turbine generator set and its parameters; calculating a model frequency and a mode shape of the turbine generator set; acquiring an angular velocity change at a machine end; calculating a torque at a calculating section of shafting based on the model frequency, a mode shape curve and an equivalent rigidity of the lumped mass model, so as to obtain a torque-time history curve at the calculating section of the shafting; calculating a fatigue damage accumulative value for a dangerous section of a set shafting under a certain malfunction or disturbance, that is, the shafting mechanical fatigue of the turbine generator set.
摘要翻译： 一种用于测量涡轮发电机组的轴系机械疲劳的方法，其涉及确定涡轮发电机组的集总质量模型及其参数; 计算涡轮发电机组的模型频率和模式形状; 在机器端获取角速度变化; 基于模型频率，模态形状曲线和集体质量模型的等效刚度来计算轴系计算部分的扭矩，以便在轴系的计算部分获得扭矩 - 时间历程曲线; 计算在某些故障或干扰下的集团轴系的危险部分的疲劳损伤累积值，即涡轮发电机组的轴系机械疲劳。
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公开(公告)号：US20100286837A1
公开(公告)日：2010-11-11
申请号：US12529645
申请日：2008-04-30
申请人： Shaohua Jiao , Tao Zhang , Quan Liu , Xinyan Liang , Yuansheng Li
发明人： Shaohua Jiao , Tao Zhang , Quan Liu , Xinyan Liang , Yuansheng Li
IPC分类号： H02H7/06
CPC分类号： F02C9/00 , F01D21/003 , F05D2260/80 , F05D2260/96
摘要： The present invention relates to the coordinated control method of torsional stress relay in large thermal power plants' generators (300 MW and above), which will be adopted when shaft torsional oscillations occur. This invention also publishes a method of realizing selective trip the generators and the trip criterions which are implemented by the torsional stress relay and coordinated control master station (Tmaster). Tmaster will real-time monitor the operating status of the generators and TSR, TMaster will also real-time generate a trip priority level sequencing by analyzing the unit output.When generators occur subsynchronous resonance and shaft torsional oscillation, this method can ensure that TSR will trip some generators of the power plant according to the real-time generated trip strategy to inhibit the shaft torsional oscillation and safeguard the units. This method can also avoid the tremendous economic loss caused by tripping all the generators, and that will reduce the hazard to the transmission grid.
摘要翻译： 本发明涉及大型火力发电机（300MW以上）中的扭转应力继电器的协调控制方法，这将在轴扭转振荡发生时采用。 本发明还公开了一种实现选择性跳闸发电机的方法和由扭转应力继电器和协调控制主站（Tmaster）实现的跳闸准则。 泰玛特将实时监控发电机和TSR的运行状态，TMaster还将通过分析单位输出实时生成跳闸优先级排序。 当发电机发生次同步谐振和轴扭转振荡时，该方法可以确保TSR根据实时产生的跳闸策略跳闸发电机的一些发电机，以抑制轴扭转振荡并保护机组。 这种方法也可以避免所有发电机跳闸造成的巨大经济损失，从而减少对输电网的危害。
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4.发明授权公开(公告)号：US08150556B2
公开(公告)日：2012-04-03
申请号：US12529645
申请日：2008-04-30
申请人： Shaohua Jiao , Tao Zhang , Quan Liu , Xinyan Liang , Yuansheng Li
发明人： Shaohua Jiao , Tao Zhang , Quan Liu , Xinyan Liang , Yuansheng Li
CPC分类号： F02C9/00 , F01D21/003 , F05D2260/80 , F05D2260/96
摘要： The present invention relates to the coordinated control method of torsional stress relay in large thermal power plants' generators (300 MW and above), which will be adopted when shaft torsional oscillations occur. This invention also publishes a method of realizing selective trip the generators and the trip criterions which are implemented by the torsional stress relay and coordinated control master station (Tmaster). Tmaster will real-time monitor the operating status of the generators and TSR, TMaster will also real-time generate a trip priority level sequencing by analyzing the unit output.When generators occur subsynchronous resonance and shaft torsional oscillation, this method can ensure that TSR will trip some generators of the power plant according to the real-time generated trip strategy to inhibit the shaft torsional oscillation and safeguard the units. This method can also avoid the tremendous economic loss caused by tripping all the generators, and that will reduce the hazard to the transmission grid.
摘要翻译： 本发明涉及大型火力发电机（300MW以上）中的扭转应力继电器的协调控制方法，这将在轴扭转振荡发生时采用。 本发明还公开了一种实现选择性跳闸发电机的方法和由扭转应力继电器和协调控制主站（Tmaster）实现的跳闸准则。 泰玛特将实时监控发电机和TSR的运行状态，TMaster还将通过分析单位输出实时生成跳闸优先级排序。 当发电机发生次同步谐振和轴扭转振荡时，该方法可以确保TSR根据实时产生的跳闸策略跳闸发电机的一些发电机，以抑制轴扭转振荡并保护机组。 这种方法也可以避免所有发电机跳闸造成的巨大经济损失，从而减少对输电网的危害。
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5.发明申请公开(公告)号：US20100250150A1
公开(公告)日：2010-09-30
申请号：US12741509
申请日：2008-11-28
申请人： Xinyan Liang , Shaohua Jiao , Yuansheng Li , Tao Zhang , Quan Liu
发明人： Xinyan Liang , Shaohua Jiao , Yuansheng Li , Tao Zhang , Quan Liu
IPC分类号： G06F19/00
CPC分类号： G01H1/003
摘要： A method for measuring mechanical fatigue in shafts forming part of a turbine generator set, which involves determining a lumped mass model of a turbine generator set and its parameters; calculating a model frequency and a mode shape of the turbine generator set; acquiring an angular velocity change at a machine end; calculating a torque at a calculating section of shafting based on the model frequency, a mode shape curve and an equivalent rigidity of the lumped mass model, so as to obtain a torque-time history curve at the calculating section of the shafting; calculating a fatigue damage accumulative value for a dangerous section of a set shafting under a certain malfunction or disturbance, that is, the shafting mechanical fatigue of the turbine generator set.
摘要翻译： 一种用于测量构成涡轮发电机组的一部分的轴的机械疲劳的方法，其涉及确定涡轮发电机组的集总质量模型及其参数; 计算涡轮发电机组的模型频率和模式形状; 在机器端获取角速度变化; 基于模型频率，模态形状曲线和集体质量模型的等效刚度计算轴系计算部分的扭矩，以便在轴系的计算部分获得扭矩 - 时间历程曲线; 计算在某些故障或干扰下的集团轴系的危险部分的疲劳损伤累积值，即涡轮发电机组的轴系机械疲劳。
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公开(公告)号：USD889190S1
公开(公告)日：2020-07-07
申请号：US29635252
申请日：2018-01-30
申请人： Yuansheng Li
设计人： Yuansheng Li
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