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1. 发明专利

JP2008089537A Operation method of system impedance 有权
标题翻译：系统阻抗的操作方法
公开(公告)号：JP2008089537A
公开(公告)日：2008-04-17
申请号：JP2006273751
申请日：2006-10-05
申请人： Daihen Corp , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 株式会社ダイヘン
发明人： SAKAI KENTARO , FUKUDA YASUHIKO , FUKATSU NAOAKI , MORI KENJIRO
IPC分类号： G01R27/16 , H02J3/00 , H02J3/01
摘要： PROBLEM TO BE SOLVED: To improve accuracy of operation of a system impedance with respect to a harmonic having an object order. SOLUTION: A harmonic voltage Vo having the object order included in a distribution line voltage at a specific spot in a state before injecting a harmonic current J into a system from a harmonic current source, a harmonic voltage V1 having the object order included in the distribution line voltage when injecting the harmonic current J into a distribution system, and the harmonic current J are detected by switching a phase to a fundamental wave voltage Vf of the harmonic current J to different values to the number of h, and circles to the number of h (a circle 1 to a circle 3) on which a resistance portion Ro and a reactance portion Xo of the system impedance are loaded are drawn. Intersection points having a relation of a shorter mutual distance are extracted as effective data points from among all the intersection points of the circles to the number of h, and each average value of R-axis components and X-axis components of each coordinate of the effective data points is operated, to thereby determine the resistance portion Ro and the reactance portion Xo of the system impedance. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提高系统阻抗相对于具有物体顺序的谐波的操作精度。解决方案：将谐波电压Vo包括在从谐波电流源向系统中注入谐波电流J之前的状态下的特定点处的配电线路电压中包括的谐波电压Vo，包括对象顺序的谐波电压V1 在将谐波电流J注入分配系统时的分配线电压中，并且通过将谐波电流J的相位与基波电压Vf切换为与h的数不同的值来检测谐波电流J，并且向绘制其上装载有电阻部分Ro和系统阻抗的电抗部分Xo的h（圆1至圆3）的数量。将具有较短相互距离的关系的相交点作为有效数据点从圆的所有交点到h的数量被提取，并且每个坐标的R轴分量和X轴分量的每个平均值操作有效数据点，从而确定系统阻抗的电阻部分Ro和电抗部分Xo。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2011182483A Phase modifier 有权
标题翻译：相变器
公开(公告)号：JP2011182483A
公开(公告)日：2011-09-15
申请号：JP2010041334
申请日：2010-02-26
申请人： Daihen Corp , 株式会社ダイヘン
发明人： MATSUNAGA KOJI , SAKAI KENTARO , NAKAYA SHIGEYOSHI
IPC分类号： H02J3/18 , H01F37/00 , H02J3/00
CPC分类号： Y02E40/30 , Y04S10/525
摘要： PROBLEM TO BE SOLVED: To accurately investigate an accident when energizing a distribution line by a reclosed circuit after distribution line power failure due to the accident within a phase modifier. SOLUTION: The phase modifier includes phase modifying elements 4u to 4w connected to the distribution lines 1u to 1w via switches 5u to 5w and a control unit 6 for controlling the switches 5u to 5w so that a voltage of the distribution line is within a prescribed range. The control unit 6 includes a switch state storage unit 10 for storing the states of the switches immediately before detection of power failure when the distribution line power failure is detected and a switch returning means 11 at voltage recovery for restoring the states of the switches 5u to 5w to the states stored in the switch state storage unit 10 for the amount of time required for accident investigation by the reclosed circuit when detecting the recovery of the voltage in the distribution line. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了准确地调查由于在相位修正器内的事故而在分配线电源故障之后通过重新闭合的电路为配电线路通电时的事故。解决方案：相位修正器包括通过开关5u至5w连接到配线1u至1w的相位修改元件4u至4w，以及用于控制开关5u至5w的控制单元6，使得配线的电压在规定范围。控制单元6包括开关状态存储单元10，用于在检测到配电线路电源故障时立即检测到电源故障之前的开关的状态以及用于恢复开关5u的状态的电压恢复时的开关返回装置11 5w到存储在开关状态存储单元10中的状态，当检测到配电线路中的电压恢复时，重新闭合电路的事故调查所需的时间量。版权所有（C）2011，JPO＆INPIT

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