公开(公告)号：US07505545B2

公开(公告)日：2009-03-17

申请号：US10874235

申请日：2004-06-24

申请人： Choon-Kyung Kim ,  Seog-Joo Kim ,  Jong-Min Cheon ,  Jong-Moo Lee ,  Kook-Hun Kim ,  Soon-Man Kwon

发明人： Choon-Kyung Kim ,  Seog-Joo Kim ,  Jong-Min Cheon ,  Jong-Moo Lee ,  Kook-Hun Kim ,  Soon-Man Kwon

IPC分类号： G21C7/06

CPC分类号： H02P23/14 ,  G21C7/12 ,  G21C17/00 ,  G21D3/08 ,  H02P25/06 ,  Y02E30/39

摘要： A method for recognizing the step movement sequence of a control rod drive mechanism of a nuclear reactor, which withdraws and inserts a control rod of a nuclear reactor, includes the steps of: measuring current and voltage flowing through an electromagnetic coil used in the control rod drive mechanism of the nuclear reactor; calculating inductance of the coil by using the measured current and voltage; calculating a distance between a rotor and a stator of the control rod drive mechanism on the basis of the calculated inductance; and recognizing the step movement sequence of the control rod drive mechanism on the basis of the calculated distance. This method ensures good reliability in determining the step movement sequence, allows easy implementation using a digital signal processor, and is hardly affected by external factors such as noise.

摘要翻译： 用于识别放出并插入核反应堆的控制棒的核反应堆的控制棒驱动机构的步进运动顺序的方法包括以下步骤：测量流过控制棒中使用的电磁线圈的电流和电压 核反应堆的驱动机制; 使用测量的电流和电压计算线圈的电感; 基于计算的电感计算控制棒驱动机构的转子和定子之间的距离; 并基于计算出的距离识别控制棒驱动机构的步进运动顺序。 该方法确保了确定步进运动顺序的良好可靠性，允许使用数字信号处理器轻松实现，并且几乎不受外部因素如噪声的影响。

公开(公告)号：US20060159215A1

公开(公告)日：2006-07-20

申请号：US11253572

申请日：2005-10-20

申请人： Choon-Kyung Kim ,  Jong-Moo Lee ,  Seog-Joo Kim ,  Soon-Man Kwon

发明人： Choon-Kyung Kim ,  Jong-Moo Lee ,  Seog-Joo Kim ,  Soon-Man Kwon

IPC分类号： G21C17/00

CPC分类号： G21C17/00 ,  Y02E30/39

摘要： In a method for detecting a fault of a power module for a control system of a control rod drive mechanism of a nuclear reactor, a fault of the power module is separately detected in a “go” mode, a “hold” mode and a “double hold” mode of a control rod. In the “go” mode, fault is detected by comparing voltage ripples of a movable gripper coil, a stationary gripper coil and a lifting coil of the control rod drive mechanism. In the “hold” mode, fault is detected by means of power spectrum analysis at a predetermined frequency using a Discrete Fourier Transform (DFT) for a stationary gripper coil, and by means of a Root Means Square (RMS) calculation of coil voltage for a movable gripper coil. In the “double hold” mode, fault is detected using power spectrum analysis at a predetermined frequency using a DFT for both stationary and movable gripper coils.

摘要翻译： 在用于检测核反应堆的控制棒驱动机构的控制系统的功率模块的故障的方法中，以“去”模式，“保持”模式和“保持”模式分别检测功率模块的故障， 双重握住“模式的控制杆。 在“去”模式中，通过比较可动夹线圈，固定夹线圈和控制杆驱动机构的提升线圈的电压纹波来检测故障。 在“保持”模式中，通过使用用于固定夹持器线圈的离散傅立叶变换（DFT）的预定频率的功率谱分析来检测故障，并且通过用于线圈电压的根平均方差（RMS）计算线圈电压 可动夹线圈。 在“双重保持”模式中，使用用于固定和可动夹持器线圈的DFT以预定频率使用功率谱分析来检测故障。

公开(公告)号：US20050286673A1

公开(公告)日：2005-12-29

申请号：US10874235

申请日：2004-06-24

申请人： Choon-Kyung Kim ,  Seog-Joo Kim ,  Jong-Min Cheon ,  Jong-Moo Lee ,  Kook-Hun Kim ,  Soon-Man Kwon

发明人： Choon-Kyung Kim ,  Seog-Joo Kim ,  Jong-Min Cheon ,  Jong-Moo Lee ,  Kook-Hun Kim ,  Soon-Man Kwon

IPC分类号： G21C7/12 ,  G21C17/00 ,  G21D3/08 ,  H02P23/14 ,  H02P25/06

CPC分类号： H02P23/14 ,  G21C7/12 ,  G21C17/00 ,  G21D3/08 ,  H02P25/06 ,  Y02E30/39

摘要： A method for recognizing the step movement sequence of a control rod drive mechanism of a nuclear reactor, which withdraws and inserts a control rod of a nuclear reactor, includes the steps of: measuring current and voltage flowing through an electromagnetic coil used in the control rod drive mechanism of the nuclear reactor; calculating inductance of the coil by using the measured current and voltage; calculating a distance between a rotor and a stator of the control rod drive mechanism on the basis of the calculated inductance; and recognizing the step movement sequence of the control rod drive mechanism on the basis of the calculated distance. This method ensures good reliability in determining the step movement sequence, allows easy implementation using a digital signal processor, and is hardly affected by external factors such as noise.

摘要翻译： 用于识别放出并插入核反应堆的控制棒的核反应堆的控制棒驱动机构的步进运动顺序的方法包括以下步骤：测量流过控制棒中使用的电磁线圈的电流和电压 核反应堆的驱动机制; 使用测量的电流和电压计算线圈的电感; 基于计算的电感计算控制棒驱动机构的转子和定子之间的距离; 并基于计算出的距离识别控制棒驱动机构的步进运动顺序。 该方法确保了确定步进运动顺序的良好可靠性，允许使用数字信号处理器轻松实现，并且几乎不受外部因素如噪声的影响。