公开(公告)号：US20130187783A1

公开(公告)日：2013-07-25

申请号：US13560211

申请日：2012-07-27

申请人： Xi Hu ,  Qing Gang Wang ,  Jian Hui Xing ,  Yue Zhuo

发明人： Xi Hu ,  Qing Gang Wang ,  Jian Hui Xing ,  Yue Zhuo

IPC分类号： G01B21/16

CPC分类号： G01B21/16 ,  F03D17/00 ,  F05B2260/80 ,  Y02E10/722

摘要： A wind turbine condition monitoring method includes the steps of generating in advance a reference curve for normal operation of a transmission chain of a wind turbine using position information, measuring position information and generating an actual condition monitoring curve; comparing the actual condition monitoring curve with the reference curve, and determining the current condition of the wind turbine from the comparison. With the proposed monitoring method, monitoring with a high signal-to-noise ratio can be achieved with minimal or no addition of hardware, such as an ND module; moreover, computational task is greatly reduced, so that the monitoring system can be more easily integrated into the main control system. In addition, the position measurement system is more stable than a vibration measurement system, and the monitoring result is more reliable.

摘要翻译： 风力涡轮机状态监视方法包括以下步骤：使用位置信息，测量位置信息和生成实际状况监视曲线，预先产生用于风力涡轮机的传动链的正常操作的参考曲线; 将实际情况监测曲线与参考曲线进行比较，并根据比较确定风力发电机组的当前状况。 利用所提出的监控方法，可以通过最少或不添加硬件（如ND模块）实现高信噪比的监控; 此外，计算任务大大减少，使监控系统更容易集成到主控系统中。 此外，位置测量系统比振动测量系统更稳定，监测结果更可靠。

公开(公告)号：US20140229126A1

公开(公告)日：2014-08-14

申请号：US14233359

申请日：2012-07-11

申请人： Xi Hu ,  Qing Gang Wang ,  Jian Hui Xing ,  Yue Zhuo

发明人： Xi Hu ,  Qing Gang Wang ,  Jian Hui Xing ,  Yue Zhuo

IPC分类号： G01R31/3185

CPC分类号： G01R31/02 ,  G05B19/048 ,  G05B19/058

摘要： A method and fault detection device for detecting faults in digital output channels includes a detection circuit for detecting a first level of a first detection point disposed before a switch and a load in the PLC system, detecting a second level of a second detection point disposed after the switch and load in the PLC system, and for outputting a corresponding first pulse signal according to a change in the first level and second levels, a judgment circuit for judging whether the pulse width of the received first pulse signal is within a permitted range and for outputting a second pulse signal when the judgment result is negative, a trigger circuit for triggering the display circuit according to the received second pulse signal, and a display circuit for displaying a detection result in response to a received signal.

摘要翻译： 一种用于检测数字输出通道故障的方法和故障检测装置，包括检测电路，用于检测在PLC系统中设置的开关和负载之前设置的第一检测点的第一电平，检测设置在第二检测点之后的第二检测点 PLC系统中的开关和负载，并且用于根据第一电平和第二电平的变化输出相应的第一脉冲信号;判断电路，用于判断所接收的第一脉冲信号的脉冲宽度是否在允许范围内;以及 用于当判断结果为否定时输出第二脉冲信号，触发电路，用于根据所接收的第二脉冲信号触发显示电路;以及显示电路，用于响应于接收到的信号显示检测结果。

公开(公告)号：US09146100B2

公开(公告)日：2015-09-29

申请号：US13560211

申请日：2012-07-27

申请人： Xi Hu ,  Qing Gang Wang ,  Jian Hui Xing ,  Yue Zhuo

发明人： Xi Hu ,  Qing Gang Wang ,  Jian Hui Xing ,  Yue Zhuo

IPC分类号： G06F19/00 ,  G01B3/44 ,  G01B21/16 ,  F03D11/00

CPC分类号： G01B21/16 ,  F03D17/00 ,  F05B2260/80 ,  Y02E10/722

摘要： A wind turbine condition monitoring method includes the steps of generating in advance a reference curve for normal operation of a transmission chain of a wind turbine using position information, measuring position information and generating an actual condition monitoring curve; comparing the actual condition monitoring curve with the reference curve, and determining the current condition of the wind turbine from the comparison. With the proposed monitoring method, monitoring with a high signal-to-noise ratio can be achieved with minimal or no addition of hardware, such as an A/D module; moreover, computational task is greatly reduced, so that the monitoring system can be more easily integrated into the main control system. In addition, the position measurement system is more stable than a vibration measurement system, and the monitoring result is more reliable.

摘要翻译： 风力涡轮机状态监视方法包括以下步骤：使用位置信息，测量位置信息和生成实际状况监视曲线，预先产生用于风力涡轮机的传动链的正常操作的参考曲线; 将实际情况监测曲线与参考曲线进行比较，并根据比较确定风力发电机组的当前状况。 利用所提出的监视方法，可以通过最少或不添加诸如A / D模块的硬件来实现具有高信噪比的监视; 此外，计算任务大大减少，使监控系统更容易集成到主控系统中。 此外，位置测量系统比振动测量系统更稳定，监测结果更可靠。

公开(公告)号：US08225657B2

公开(公告)日：2012-07-24

申请号：US12497963

申请日：2009-07-06

申请人： Xiao Yin Shao ,  Wei Min Ma ,  Qing Gang Wang ,  Wen Gang Shi ,  Xi Hu ,  Jian Hui Xing ,  Yue Zhuo

发明人： Xiao Yin Shao ,  Wei Min Ma ,  Qing Gang Wang ,  Wen Gang Shi ,  Xi Hu ,  Jian Hui Xing ,  Yue Zhuo

IPC分类号： G01M1/16

CPC分类号： G01M1/24

摘要： A method and an apparatus for quantitatively detecting the unbalanced state of a rotating shaft and a clamping state of a workpiece clamped to a shaft are disclosed by solving with a nonlinear multivariable method a Lagrange kinematics equation to determine from acquired position, velocity, acceleration and torque signals of the rotating shaft an unbalanced amplitude variable and an unbalanced angle variable of the rotating shaft, optionally both with and without a workpiece. The motor driving the shaft is energized with a combined S-shaped and sinusoidal velocity profile with a position profile component, a velocity profile component, and an acceleration profile component. The components are selected such that the motor speed during the accelerating and decelerating stages does not change abruptly.

摘要翻译： 公开了一种用于定量检测旋转轴的不平衡状态和夹紧在轴上的工件的夹紧状态的方法和装置，其通过使用拉格朗日运动学方程的非线性多变量方法求解，以从获取的位置，速度，加速度和扭矩 旋转轴的信号是不平衡振幅变量和旋转轴的不平衡角度变量，任选地都有和没有工件。 驱动轴的马达通过具有位置分布分量，速度分布分量和加速度分布分量的组合的S形和正弦速度分布来激励。 选择这些部件使得加速和减速阶段期间的电动机速度不会突然变化。

公开(公告)号：US20100000320A1

公开(公告)日：2010-01-07

申请号：US12497963

申请日：2009-07-06

申请人： Xiao Yin Shao ,  Wei Min Ma ,  Qing Gang Wang ,  Wen Gang Shi ,  Xi Hu ,  Jian Hui Xing ,  Yue Zhuo

发明人： Xiao Yin Shao ,  Wei Min Ma ,  Qing Gang Wang ,  Wen Gang Shi ,  Xi Hu ,  Jian Hui Xing ,  Yue Zhuo

IPC分类号： G01M1/02

CPC分类号： G01M1/24

摘要： A method and an apparatus for quantitatively detecting the unbalanced state of a rotating shaft and a clamping state of a workpiece clamped to a shaft are disclosed by solving with a nonlinear multivariable method a Lagrange kinematics equation to determine from acquired position, velocity, acceleration and torque signals of the rotating shaft an unbalanced amplitude variable and an unbalanced angle variable of the rotating shaft, optionally both with and without a workpiece. The motor driving the shaft is energized with a combined S-shaped and sinusoidal velocity profile with a position profile component, a velocity profile component, and an acceleration profile component. The components are selected such that the motor speed during the accelerating and decelerating stages does not change abruptly.

摘要翻译： 公开了一种用于定量检测旋转轴的不平衡状态和夹紧在轴上的工件的夹紧状态的方法和装置，其通过使用拉格朗日运动学方程的非线性多变量方法求解，以从获取的位置，速度，加速度和扭矩 旋转轴的信号是不平衡振幅变量和旋转轴的不平衡角度变量，任选地都有和没有工件。 驱动轴的马达通过具有位置分布分量，速度分布分量和加速度分布分量的组合的S形和正弦速度分布来激励。 选择这些部件使得加速和减速阶段期间的电动机速度不会突然变化。