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1. 发明专利

JP2005354835A Overload eliminator 有权
标题翻译：过载消除者
公开(公告)号：JP2005354835A
公开(公告)日：2005-12-22
申请号：JP2004174255
申请日：2004-06-11
申请人： Tohoku Electric Power Co Inc , Toshiba Corp , 東北電力株式会社 , 株式会社東芝
发明人： KUWAORI SHINICHI , GOTO KENICHI , TAGUCHI YASUHIRO , KOMATA KAZUYA , ISHIHARA YUJI
IPC分类号： H02J3/18
CPC分类号： Y02E40/30
摘要： PROBLEM TO BE SOLVED: To easily eliminate or prevent overload by the processing using a phase adjuster distribution matrix. SOLUTION: This overload eliminator is equipped with a phase adjuster distribution matrix making means; comprising a means 1 which computes the loop impedance when the side of a power distribution system is viewed from nodes at both ends to which phase adjusters are connected, using the phase matrix showing the relation between the quantity of currents injected into the nodes in a power system and the variation of the power flow in each branch and the reactance of phase adjusters, a means 2 which computes the relation between the variation of power flow at a point where a phase adjuster is installed and the variation of the power flow in each branch for a transformer or the like, and a means 3 which gets the relation among the loop impedance, the variation of the power flow at a point where the phase adjuster is installed, and the variation of the power flow in each branch and indicates it as a matrix; and a means which gets the amount of phase adjustment in a phase adjuster to eliminate overload, from the relation between the amount of phase adjustment in a phase adjuster and the variation of the power flow in each branch, using this phase adjuster distribution matrix. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过使用相位调节器分布矩阵的处理来容易地消除或防止过载。
解决方案：该过载消除器配有相位调节器分配矩阵制作装置; 包括当使用相位矩阵表示在功率分配系统的侧面从相关调节器所连接的两端的节点观察时的环路阻抗的装置1，该相位矩阵示出了以电力为单位注入节点的电流量之间的关系系统和每个分支中的功率流的变化和相位调节器的电抗;计算在安装相位调节器的点处的功率流的变化与每个分支中的功率流的变化之间的关系的装置2 用于变压器等的装置，以及获得环路阻抗，安装有相位调节器的点处的功率流的变化与每个分支中的功率流的变化之间的关系的装置3，并将其指示为矩阵以及使用该相位调整器分配矩阵，从相位调整器中的相位调整量与每个分支中的功率流的变化之间的关系中获得相位调整器中的相位调整量以消除过载的装置。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2006005992A Method, device and program for forming reduced model of power system 有权
标题翻译：用于形成电力系统减少模型的方法，装置和程序
公开(公告)号：JP2006005992A
公开(公告)日：2006-01-05
申请号：JP2004177247
申请日：2004-06-15
申请人： Tohoku Electric Power Co Inc , Toshiba Corp , 東北電力株式会社 , 株式会社東芝
发明人： KUWAORI SHINICHI , GOTO KENICHI , TAGUCHI YASUHIRO , KOMATA KAZUYA , ISHIHARA YUJI
IPC分类号： H02J3/00
摘要： PROBLEM TO BE SOLVED: To perform the tuning of a damping constant efficiently by decreasing the number of simulation times for determining an optimal damping constant. SOLUTION: The device 1 for forming a reduced model 3 of a power system by equivalently reducing a power system model 2 used in a power system analysis or control comprises a damping constant tuning section 6 for selecting two damping constants of an equivalent reduced generator of the reduced model 3 arbitrarily from the power system model 2, approximating the relation of the damping constant and a reduction error linearly from the two damping constants and data of the reduction error, and determining an optimal damping constant using a linear approximation function connecting data at two points by a line. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过减少用于确定最佳阻尼常数的模拟次数来有效地执行阻尼常数的调谐。解决方案：用于通过等效地减少在电力系统分析或控制中使用的电力系统模型2来形成电力系统的简化模型3的装置1包括：阻尼常数调节部分6，用于选择等效减少的两个阻尼常数从电力系统模型2任意地减少模型3的发电机，从两个阻尼常数和减少误差的数据线性地近似阻尼常数和减小误差的关系，并使用线性近似函数连接来确定最佳阻尼常数数据在两点一行。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2006238526A Step-out separation method of power system and device 有权
标题翻译：电力系统和装置的步进分离方法
公开(公告)号：JP2006238526A
公开(公告)日：2006-09-07
申请号：JP2005045713
申请日：2005-02-22
申请人： Tohoku Electric Power Co Inc , Toshiba Corp , 東北電力株式会社 , 株式会社東芝
发明人： KUWAORI SHINICHI , GOTO KENICHI , TAGUCHI YASUHIRO , KOMATA KAZUYA , ISHIHARA YUJI
IPC分类号： H02J3/24
摘要： PROBLEM TO BE SOLVED: To perform step-out separation in an early stage without receiving constraints of a system constitution and a step-out mode. SOLUTION: In this step-out separation method, the phase information of a wide band of a power system is obtained by measuring every moment a bus-bar voltage phase angle of a prescribed electric site in the power system wherein a plurality of synchronizing generators are continuously constituted of power cables by using a system information input part 2, a phase angle difference between each electric site is obtained by a phase angle difference operation part 3 from the phase information, and the phase angle difference is compared with a preset threshold by using a step-out mode determination part 4. The occurrence of step-out is determined when there is the phase angle difference that exceeds the threshold, and after repeating processes of the acquisition of the phase information, the calculation of the phase angle difference between each electric site, and the comparison of the phase angle difference and the threshold for a certain period of time after the determination, a step-out generator group is extracted from the phase angle difference that exceeds the threshold. Then the step-out mode is estimated from the combination of the extracted step-out generator groups, and the optimum system separation is performed by a system separation point selecting part 5. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在没有接收到系统结构和退出模式的限制的情况下，在早期阶段执行逐出分离。解决方案：在该步进分离方法中，通过测量电力系统中规定电气站的母线电压相位角，每一时刻测量电力系统的宽带的相位信息，其中多个同步发电机通过使用系统信息输入部分2连续地由电力电缆构成，通过相位角差运算部分3从相位信息获得每个电位点之间的相位角差，并将相位角差与预设通过使用步出模式确定部分4来确定阈值。当存在超过阈值的相位角差时，确定退出的发生，并且在重复获取相位信息的处理之后，计算相位角每个电站之间的差异，以及在确定之后一定时间段内的相位角差和阈值的比较，一步一步发生器组从超过阈值的相位角差中提取出来。然后，通过提取的逐出发生器组的组合来估计出退出模式，并且通过系统分离点选择部分5执行最佳系统分离。（C）2006年，JPO和NCIPI

4. 发明专利

JP2006005993A Power system stabilizer and power system stabilizing program 有权
标题翻译：电力系统稳定器和电力系统稳定程序
公开(公告)号：JP2006005993A
公开(公告)日：2006-01-05
申请号：JP2004177248
申请日：2004-06-15
申请人： Tohoku Electric Power Co Inc , Toshiba Corp , 東北電力株式会社 , 株式会社東芝
发明人： KUWAORI SHINICHI , GOTO KENICHI , TAGUCHI YASUHIRO , KOMATA KAZUYA , ISHIHARA YUJI
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To perform stabilization control appropriately by determining stability easily in any system cross-section of a power system. SOLUTION: A stability determination function generating function 3 generates a stability determination function based on a stability limit voltage phase on each system cross-section at a plurality of generator terminals of a power system, and a stability determining section 4 determines the stability of the system cross-section having unknown stability from the stability determination function, and voltage phases at the plurality of generator terminals on the system cross-section having unknown stability. COPYRIGHT: (C)2006,JPO&NCIPI

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