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    • 5. 发明专利
    • 船舶用電力システム及び同期調相機の同期投入方法
    • 用于同步相位修正器的同步电源系统和同步输入方法
    • JP2016082648A
    • 2016-05-16
    • JP2014210019
    • 2014-10-14
    • 西芝電機株式会社
    • 古賀 充真
    • H02M7/48H02J3/42
    • 【課題】短時間で同期調相機を船内母線へ同期投入できるようにする。 【解決手段】船舶用電力システム1は、同期投入指令部9の制御に基づき、電力変換部5を制御し、電力変換部5から出力される電圧と周波数を徐々に上げて同期調相機7の回転数を定格回転数より高い回転数まで持ち上げ、同期調相機7の周波数F2を船内母線2の周波数F1よりも高めてから電力変換部5の出力電力を停止して、同期調相機7をフリーランさせる。さらに同期投入指令部9は、同期調相機7の電圧V2を船内母線2の電圧V1に制御しつつ、周波数F2が周波数F1と同程度まで低下した段階で、同期調相機7の位相P2が船内母線2の位相P1とほぼ一致したタイミングで開閉器27を閉塞させる。これにより船舶用電力システム1は、極めて短い時間で同期投入を完了することができる。 【選択図】図1
    • 要解决的问题:在短时间内在内部母线中实现同步相位调节器的同步输入。解决方案:用于船舶的电力系统1基于同步输入命令部分9的控制来控制 功率转换部分5逐渐增加从功率转换部分5输出的电压和频率,直到同步相位修正器7的旋转超过额定转速,然后在将同步相位修改器7的频率F2提高到高于频率 内部母线2的F1,停止电力转换部分5的输出功率以允许同步相位修正器7的自由运行。此外,同步输入指令部分9将同步相位修正器7的电压V2控制为 保持在内部母线2的电压V1,同时,在频率F2以频率F1降低到大致相等的水平的阶段,以一个ti关闭开关27 同步相位调整器7的相位P2基本上与内侧母线2的相位P1匹配。通过该方法,用于船舶的电力系统1可以在极短的时间内终止同步输入。图1
    • 6. 发明专利
    • Power supply device and synchronous input device
    • 电源设备和同步输入设备
    • JP2014090564A
    • 2014-05-15
    • JP2012238578
    • 2012-10-30
    • Mitsubishi Electric Corp三菱電機株式会社
    • TAKANO TOMIHIROMURATA MITSURU
    • H02M7/48H02J3/42H02P9/10
    • PROBLEM TO BE SOLVED: To obtain a power supply device capable of performing synchronous input processing with a comparatively simple device constitution.SOLUTION: A power supply device 5 can perform an interconnected operation executed during electrical connection with an electric power system 1, and an autonomous operation executed during electrical non-connection with the electric power system 1. An autonomous operation condition recording unit 36 in the power supply device 5 sets an autonomous frequency Hs to a different value from a reference frequency Hs within an approximation range. Furthermore, the autonomous operation condition recording unit 36 pre-records four kinds of information including an amplitude variation period Tv of a voltage sufficiently shorter than a phase match period Th, and maximum amplitude Vt and minimum amplitude Vb within an amplitude variation range of autonomous output voltage. The amplitude variation range is set by a user on the basis of an operation reference range of the predefined power system voltage, and is recorded in the autonomous operation condition recording unit 36.
    • 要解决的问题:获得能够以比较简单的装置结构执行同步输入处理的电源装置。解决方案:电源装置5可以执行在与电力系统1的电连接期间执行的互连操作,以及自主 在与电力系统1的电气不连接期间执行的操作。电力供应装置5中的自主运行条件记录单元36将自主频率Hs设置为与近似范围内的参考频率Hs不同的值。 此外,自主操作条件记录单元36预先记录包括自相关匹配周期Th的电压的振幅变化周期Tv以及自主输出的振幅变化范围内的最大振幅Vt和最小振幅Vb的四种信息 电压。 振幅变化范围由用户基于预定电力系统电压的操作基准范围来设定,并记录在自主运行状态记录部36中。
    • 7. 发明专利
    • Wind power generation facility operating method
    • 空值
    • JP5307333B2
    • 2013-10-02
    • JP2006351213
    • 2006-12-27
    • アロイス・ヴォベン
    • アロイス・ヴォベン
    • F03D7/04H02J3/38F03D9/25H02J3/32H02J3/42H02K11/225H02P9/00
    • H02J3/38F03D9/255F03D9/257F05B2270/337H02J3/16H02J3/386H02J3/42H02K11/225Y02E10/72Y02E10/763Y02E40/34Y02E60/721Y04S10/126
    • The present invention relates to a method for operating a wind turbine with an electrical generator, drivable by a rotor, for supplying electrical power to an electric grid, in particular to the loads connected thereto. The object of the present invention is to define a method for operating a wind turbine and to provide a wind turbine and/or a wind farm that is capable, even when the output of non-reactive power fluctuates, of reducing or at least of insignificantly increasing the unwanted fluctuation in voltage at a predefined point in the grid compared to the situation with no wind turbine(s). Method for operating a wind turbine with an electrical generator, drivable by a rotor, for supplying electrical power to an electric grid, in particular to the loads connected thereto, characterized in that the phase angle phi is changed in response to at least one voltage measured in the grid. A method for operating a wind turbine and to provide a wind turbine and/or a wind farm that is capable, even when the output of non-reactive power fluctuates, of reducing or at least of insignificantly increasing the unwanted fluctuation in voltage at a predefined point in the grid compared to the situation with no wind turbines. Method for operating a wind turbine with an electrical generator, drivable by a rotor, for supplying electrical power to an electric grid, in particular to the loads connected thereto, characterized in that the phase angle phi is changed in response to at least one voltage measured in the grid.
    • 本发明涉及一种用于通过转子驱动的用于操作具有发电机的风力涡轮机的方法,用于向电网,特别是与其连接的负载提供电力。 本发明的目的是定义一种用于操作风力涡轮机的方法,并且提供一种风力涡轮机和/或风电场,即使当无功功率的输出波动时,风力发电机和/或风力发电场也能够减少或至少不显着 与没有风力涡轮机的情况相比,在电网中的预定点处增加电压的不期望的波动。 用于通过转子操作具有可由电动机驱动的风力涡轮机的风力涡轮机的方法,用于向电网提供电力,特别是连接到电网的电力,其特征在于,所述相位角phi响应于所测量的至少一个电压而改变 在网格中。 一种用于操作风力涡轮机并且提供风力涡轮机和/或风力发电场的方法,即使当非无功功率的输出波动时,能够减少或至少显着增加预定义的电压的不期望的波动 与没有风力发电机的情况相比。 用于通过转子操作具有可由电动机驱动的风力涡轮机的风力涡轮机的方法,用于向电网提供电力,特别是连接到电网的电力,其特征在于,所述相位角phi响应于所测量的至少一个电压而改变 在网格中。
    • 10. 发明专利
    • Rotation phase angle measuring device, frequency measuring device using the same, synchronous phaser measuring device, opening/closing pole phase controller, synchronous power supply device and phase discriminating device
    • 旋转相角测量装置,使用该相位测量装置的频率测量装置,同步相位测量装置,打开/关闭相位控制器,同步电源装置和相位鉴别装置
    • JP2007325429A
    • 2007-12-13
    • JP2006153649
    • 2006-06-01
    • Mitsubishi Electric Corp三菱電機株式会社
    • SEKI KENPEI
    • H02J3/08G01R23/12G01R25/00H02J3/42
    • G01R25/00G01R19/2506G01R29/18Y02E60/728Y04S10/265
    • PROBLEM TO BE SOLVED: To provide a rotation phase angle measuring device capable of highly accurately measuring an electric quantity, even for a power system having a large number of noise deviated from a reference wave. SOLUTION: This rotation angle measuring device principally comprises a voltage measuring means for measuring a voltage instantaneous value of the power system at a cycle of 1/4N (N is a positive integer) of one cycle of a reference wave, where the voltage instantaneous value of the power system is represented by a voltage rotation vector on a complex plane; a voltage amplitude calculating means for obtaining a voltage amplitude value by the integral operation of a square value of the voltage instantaneous value at arbitrary timing at which the voltage instantaneous value is measured; a chord length calculating means for calculating the chord length of the voltage rotation vector at the two timings by integral calculation for the difference between measured adjacent two voltage instantaneous values in one segment period including the timing; and a rotation phase angle calculating means for calculating a phase angle of the voltage rotation vector in the one segment period including the timing on the basis of the voltage amplitude value obtained by the operation and the chord length. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:即使对于具有偏离参考波的大量噪声的电力系统,也可提供能够高精度地测量电量的旋转相位角测量装置。 解决方案:该旋转角度测量装置主要包括电压测量装置,用于以参考波的一个周期的1 / 4N(N为正整数)的周期测量电力系统的电压瞬时值,其中 电力系统的电压瞬时值由复平面上的电压旋转矢量表示; 电压振幅计算装置,用于通过在测量电压瞬时值的任意时刻的电压瞬时值的平方值的积分运算获得电压振幅值; 弦长计算装置,用于通过对包括定时的一个段周期中测量的相邻两个电压瞬时值之间的差的积分计算来计算两个定时的电压旋转矢量的弦长; 以及旋转相位角计算装置,用于基于通过操作获得的电压振幅值和弦长来计算包括定时的一个段周期中的电压旋转矢量的相位角。 版权所有(C)2008,JPO&INPIT