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    • 2. 发明申请
    • CONTROL DEVICE FOR AC ROTATING MACHINE
    • 交流旋转机控制装置
    • US20120038300A1
    • 2012-02-16
    • US13202639
    • 2009-03-11
    • Sho KatoYoshihiko KimparaTakahiko KobayashiSatoru Terashima
    • Sho KatoYoshihiko KimparaTakahiko KobayashiSatoru Terashima
    • H02H7/09
    • H02P21/08H02P21/22H02P21/24H02P31/00
    • A control device for an AC rotating machine having a current limiting function of protecting the AC rotating machine and a driving unit such as an inverter from over-current, in which the control device has the reliable current limiting function in driving the AC rotating machine with known or unknown electrical constant. In the control device, a frequency correction value arithmetic unit has an amplification gain computing element for computing an amplification gain based on an electrical constant of the AC rotating machine and an amplifier for computing a frequency correction arithmetic value based on the amplification gain computed by the amplification gain computing element and the current of the AC rotating machine, in which the frequency correction arithmetic value is outputted as a frequency correction value in a predetermined running state of the AC rotating machine.
    • 一种用于交流旋转机械的控制装置,具有保护交流旋转机器的电流限制功能和过电流的逆变器等驱动单元,其中控制装置在驱动交流旋转机器时具有可靠的限流功能, 已知或未知的电常数。 在控制装置中,频率校正值运算单元具有用于基于AC旋转机器的电常数来计算放大增益的放大增益计算单元和用于基于由所述AC旋转机计算出的放大增益来计算频率校正算术值的放大器 放大增益计算元件和AC旋转机的电流,其中频率校正算术值作为频率校正值输出到AC旋转机器的预定运行状态。
    • 3. 发明授权
    • Control apparatus for AC rotary machine and method for measuring electrical constant of AC rotary machine using the control apparatus
    • 交流旋转机用控制装置及使用该控制装置的交流旋转机的电常数测定方法
    • US07800337B2
    • 2010-09-21
    • US11851797
    • 2007-09-07
    • Yoshihiko KinparaTakahiko KobayashiKeita Hatanaka
    • Yoshihiko KinparaTakahiko KobayashiKeita Hatanaka
    • H02P1/46
    • H02P21/16
    • A control apparatus for an AC rotary machine, including first voltage command calculation means for calculating first voltage commands from current commands, an angular frequency, and constant set values of the AC rotary machine, second voltage command calculation means for calculating second voltage commands on the basis of difference currents between the current commands and current detection values, so that the difference currents may converge into zero, third voltage command calculation means for calculating third voltage commands by adding the first voltage commands and the second voltage commands, voltage application means for applying voltages to the AC rotary machine on the basis of the third voltage commands, and constant measurement means for calculating the constant set values on the basis of the second voltage commands.
    • 一种交流旋转机械的控制装置,包括:第一电压指令计算装置,用于从电流指令计算第一电压指令,角频率和恒定设定值;第二电压指令计算装置,用于计算第二电压指令, 基于电流指令和电流检测值之间的差电流,使得差电流可以收敛成零;第三电压指令计算装置,用于通过加上第一电压指令和第二电压指令来计算第三电压指令;电压施加装置,用于施加 基于第三电压指令到交流旋转机器的电压,以及用于基于第二电压指令计算恒定设定值的恒定测量装置。
    • 4. 发明申请
    • POWER CONVERSION SYSTEM
    • 电力转换系统
    • US20100118569A1
    • 2010-05-13
    • US12596992
    • 2007-04-27
    • Masaki KonoTakahiko KobayashiKeita Hatanaka
    • Masaki KonoTakahiko KobayashiKeita Hatanaka
    • H02M5/40
    • H02M7/53871H02M5/458
    • A power conversion system includes a first power converter converting AC to DC, a second power converter converting DC to AC, a current detector detecting output current of the second power converter, a pulsation detector detecting a pulsating component associated with the AC to DC conversion of the first power converter from a pulsating component contained in at least any one of effective power, power, and apparent power of the second power converter, a voltage corrector outputting a correction amount correcting at least one of phase, frequency, and amplitude of a voltage output from the second power converter based on the pulsating component from the pulsation detector, and a voltage controller outputting a voltage instruction to be output from the second power converter based on the correction amount from the voltage corrector, wherein the second power converter converts DC to AC based on the voltage instruction from the voltage controller.
    • 电力转换系统包括:将AC转换为DC的第一电力转换器,将DC转换为AC的第二电力转换器,检测第二电力变换器的输出电流的电流检测器,检测与AC至DC转换相关联的脉动成分的脉动检测器 所述第一功率转换器从包含在所述第二功率转换器的有效功率,功率和视在功率中的至少任一个中的脉动分量;电压校正器,输出校正电压的相位,频率和振幅中的至少一个的校正量 基于来自脉动检测器的脉动分量从第二功率转换器输出的电压控制器,以及基于来自电压校正器的校正量输出从第二功率转换器输出的电压指令的电压控制器,其中,第二功率转换器将DC转换为 根据电压控制器的电压指令进行交流。
    • 5. 发明授权
    • Power conversion system
    • 电源转换系统
    • US08547713B2
    • 2013-10-01
    • US12596992
    • 2007-04-27
    • Masaki KonoTakahiko KobayashiKeita Hatanaka
    • Masaki KonoTakahiko KobayashiKeita Hatanaka
    • H02M5/40
    • H02M7/53871H02M5/458
    • A power conversion system includes a first power converter converting AC to DC, a second power converter converting DC to AC, a current detector detecting output current of the second power converter, a pulsation detector detecting a pulsating component associated with the AC to DC conversion of the first power converter from a pulsating component contained in at least any one of effective power, power, and apparent power of the second power converter, a voltage corrector outputting a correction amount correcting at least one of phase, frequency, and amplitude of a voltage output from the second power converter based on the pulsating component from the pulsation detector, and a voltage controller outputting a voltage instruction to be output from the second power converter based on the correction amount from the voltage corrector, wherein the second power converter converts DC to AC based on the voltage instruction from the voltage controller.
    • 电力转换系统包括:将AC转换为DC的第一电力转换器,将DC转换为AC的第二电力转换器,检测第二电力变换器的输出电流的电流检测器,检测与AC至DC转换相关联的脉动成分的脉动检测器 所述第一功率转换器从包含在所述第二功率转换器的有效功率,功率和视在功率中的至少任一个中的脉动分量;电压校正器,输出校正电压的相位,频率和振幅中的至少一个的校正量 基于来自脉动检测器的脉动分量从第二功率转换器输出的电压控制器,以及基于来自电压校正器的校正量输出从第二功率转换器输出的电压指令的电压控制器,其中,第二功率转换器将DC转换为 根据电压控制器的电压指令进行交流。
    • 6. 发明申请
    • ELECTRICAL POWER CONVERSION APPARATUS
    • 电力转换装置
    • US20100308649A1
    • 2010-12-09
    • US12864821
    • 2008-02-13
    • Masaki KonoTakahiko KobayashiKeita Hatanaka
    • Masaki KonoTakahiko KobayashiKeita Hatanaka
    • B60L1/00
    • H02M7/53875B60L9/005B60L2200/26H02M5/458H02M2001/0022
    • In a conventional electrical power conversion apparatus, a control microprocessor performs a control for eliminating or curbing a beat phenomenon, so that a control delay occurs because computing time is required in the control microprocessor. Because of the control delay, it is not possible to obtain an effect of sufficiently reducing a current ripple and torque pulsation. In addition, in an electric train in which a frequency of an AC power source is changed over while the train is running, it is required for a method of detecting a ripple component by a band-pass filter that a plurality of band-pass filters are provided and then the changeover is performed depending on the power source frequency, resulting in difficulties to take countermeasures. An electrical power conversion apparatus according to the present invention stores DC voltage values at predetermined sampling time-points going back from the latest, and predicts a DC voltage estimate value for a predetermined elapse time from the latest sampling time-point using the stored DC voltage values, whereby using the predicted DC voltage estimate value, an amplitude and/or a frequency of AC power that an inverter outputs is controlled so as to curb variation of the AC power that the inverter outputs, due to a ripple caused on the DC side of the inverter.
    • 在传统的电力转换装置中,控制微处理器执行用于消除或抑制拍子现象的控制,从而由于控制微处理器中需要计算时间而发生控制延迟。 由于控制延迟,不可能获得充分降低电流纹波和转矩脉动的效果。 此外,在列车运行时交流电源的频率变化的电力列车中,需要通过带通滤波器检测纹波分量的方法,该带通滤波器使多个带通滤波器 并根据电源频率进行切换,导致难以采取对策。 根据本发明的电力转换装置,在从最新回溯的预定采样时刻存储直流电压值,并且使用所存储的直流电压,从最近的采样时刻预测预定的经过时间的直流电压估计值 值,由此使用预测的直流电压估计值,控制逆变器输出的交流电力的幅度和/或频率,以便由于在直流侧产生的纹波而抑制逆变器输出的交流电力的变化 的变频器。
    • 8. 发明申请
    • Image forming apparatus
    • 图像形成装置
    • US20070182806A1
    • 2007-08-09
    • US11654617
    • 2007-01-18
    • Takahiko Kobayashi
    • Takahiko Kobayashi
    • B41J2/385
    • B41J2/471G03G15/04045
    • An image forming apparatus includes an optical scanning unit having a light transmitting portion, the cleaning mechanism that includes a cleaning rod with a pad at a front end portion thereof to be capable of cleaning a surface of the light transmitting portion by sliding on the light transmitting portion, and a retaining mechanism that retains the cleaning rod slidably in a longitudinal direction of the light transmitting portion, and that retains the pad positioned above the optical scanning unit and spaced apart from the optical scanning unit in a state where the cleaning rod is at an insertion completed position.
    • 一种图像形成装置包括具有透光部分的光学扫描单元,所述清洁机构包括在其前端部分具有垫的清洁杆,以能够通过在透光部分上滑动来清洁透光部分的表面 以及保持机构,其将清洁杆可滑动地保持在透光部分的纵向方向上,并且在清洁杆处于该状态的状态下保持位于光学扫描单元上方并与光学扫描单元间隔开的垫 插入完成位置。
    • 9. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US07898559B2
    • 2011-03-01
    • US11654617
    • 2007-01-18
    • Takahiko Kobayashi
    • Takahiko Kobayashi
    • B41J2/385
    • B41J2/471G03G15/04045
    • An image forming apparatus includes an optical scanning unit having a light transmitting portion, the cleaning mechanism that includes a cleaning rod with a pad at a front end portion thereof to be capable of cleaning a surface of the light transmitting portion by sliding on the light transmitting portion, and a retaining mechanism that retains the cleaning rod slidably in a longitudinal direction of the light transmitting portion, and that retains the pad positioned above the optical scanning unit and spaced apart from the optical scanning unit in a state where the cleaning rod is at an insertion completed position.
    • 一种图像形成装置包括具有透光部分的光学扫描单元,所述清洁机构包括在其前端部分具有垫的清洁杆,以能够通过在透光部分上滑动来清洁透光部分的表面 以及保持机构,其将清洁杆可滑动地保持在透光部分的纵向方向上,并且在清洁杆处于该状态的状态下保持位于光学扫描单元上方并与光学扫描单元间隔开的垫 插入完成位置。
    • 10. 发明申请
    • ELECTRIC POWER CONVERTER
    • 电力转换器
    • US20100039056A1
    • 2010-02-18
    • US12440934
    • 2006-10-31
    • Takahiko KobayashiYoshihiko KimparaManabu Yoshimura
    • Takahiko KobayashiYoshihiko KimparaManabu Yoshimura
    • H02P6/18H02M11/00
    • H02P27/08H02M7/48H02M7/5395H02M2001/0009
    • A voltage-command correction unit provided between an electric-power conversion unit and a voltage-command calculation unit provides a predetermined current range including the zero level for the detected output current, and, at a first clock time when the output current enters from outside to inside of the current range, sets a zero cross timing of the output current as a clock time for switching the polarity of the correction voltage that corrects the AC voltage command calculated and output by the voltage-command calculation unit based on the first clock time and the frequency, thereby making a configuration capable of correcting the AC voltage command with the correction voltage with the same polarity as the polarity of the output current around the zero cross point of the output current.
    • 设置在电力转换单元和电压指令计算单元之间的电压指令校正单元提供包括检测到的输出电流的零电平的预定电流范围,并且在输出电流从外部进入的第一时钟时间 在电流范围内,将输出电流的零交叉定时设置为用于切换校正电压的极性的时钟时间,该校正电压校正由电压指令计算单元计算并输出的交流电压指令基于第一时钟时间 频率,从而能够以与输出电流的零交叉点周围的输出电流的极性相同极性的校正电压来校正AC电压指令。