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    • 1. 发明申请
    • POWER CONVERTING APPARATUS
    • 电源转换装置
    • US20090116268A1
    • 2009-05-07
    • US12296286
    • 2007-04-23
    • Yukimori KishidaAkihiko IwataShinichi OgusaAkira ImanakaTetsuaki Nagano
    • Yukimori KishidaAkihiko IwataShinichi OgusaAkira ImanakaTetsuaki Nagano
    • H02M7/19
    • H02M1/12H02M7/797H02M2001/007
    • A converter controllable in regenerative running mode, which is a power converting apparatus capable of suppressing harmonics without increasing the size of a reactor, and reducing power loss and electromagnetic noise. A power converter is configured by directly connecting AC sides of single-phase sub-converters having a DC voltage lower than a DC voltage of a 3-phase main converter to AC input lines of individual phases thereof in series. The main converter is driven by one gate pulse per half recurring cycle and a voltage produced by each sub-converter at AC terminals thereof is controlled to match a difference between an AC power supply voltage and a voltage produced by the main converter at AC terminals thereof, whereby phase voltages of the power converter are generated as the sums of phase voltages of the individual converters.
    • 可再生运行模式的A转换器,其是能够在不增加电抗器的尺寸的情况下抑制谐波的电力转换装置,并且减少功率损耗和电磁噪声。 电力转换器通过将具有低于三相主转换器的直流电压的直流电压的交流侧直接连接到其各相的交流输入线而构成。 主转换器每半周期循环由一个门脉冲驱动,并且控制由其AC端子处的每个子转换器产生的电压,以匹配交流电源电压与由主转换器在其交流端子处产生的电压之间的差 从而产生功率转换器的相电压作为各个转换器的相电压之和。
    • 2. 发明授权
    • Power converting apparatus with main converter and sub-converter
    • 具有主转换器和子转换器的电力转换装置
    • US08223517B2
    • 2012-07-17
    • US12296286
    • 2007-04-23
    • Yukimori KishidaAkihiko IwataShinichi OgusaAkira ImanakaTetsuaki Nagano
    • Yukimori KishidaAkihiko IwataShinichi OgusaAkira ImanakaTetsuaki Nagano
    • H02M7/08
    • H02M1/12H02M7/797H02M2001/007
    • A converter controllable in regenerative running mode, which is a power converting apparatus capable of suppressing harmonics without increasing the size of a reactor, and reducing power loss and electromagnetic noise. A power converter is configured by directly connecting AC sides of single-phase sub-converters having a DC voltage lower than a DC voltage of a 3-phase main converter to AC input lines of individual phases thereof in series. The main converter is driven by one gate pulse per half recurring cycle and a voltage produced by each sub-converter at AC terminals thereof is controlled to match a difference between an AC power supply voltage and a voltage produced by the main converter at AC terminals thereof, whereby phase voltages of the power converter are generated as the sums of phase voltages of the individual converters.
    • 可再生运行模式的A转换器,其是能够在不增加电抗器的尺寸的情况下抑制谐波的电力转换装置,并且减少功率损耗和电磁噪声。 电力转换器通过将具有低于三相主转换器的直流电压的直流电压的交流侧直接连接到其各相的交流输入线而构成。 主转换器每半周期循环由一个门脉冲驱动,并且控制由其AC端子处的每个子转换器产生的电压,以匹配交流电源电压与由主转换器在其交流端子处产生的电压之间的差 从而产生功率转换器的相电压作为各个转换器的相电压之和。
    • 7. 发明申请
    • Controller for power converter
    • 电源转换器控制器
    • US20060062033A1
    • 2006-03-23
    • US10530720
    • 2003-08-25
    • Masahiro KimataToshiyuki KaitaniAkira Imanaka
    • Masahiro KimataToshiyuki KaitaniAkira Imanaka
    • H02M7/537
    • H02M7/53873H02M7/53875H02M2007/53876H02P21/00
    • An apparatus for controlling a power converter including a voltage-vector control unit that determines, based on voltage instruction value for the power converter, a voltage vector output from a power converter in one control cycle of pulse width modulation control and times for outputting of the voltage vector, a voltage-vector adjusting unit that adjusts the time of outputting of the voltage vector so that time of outputting of a zero-voltage vector is larger than a fixed time or zero, and a firing-pulse generating unit that generates a signal for turning on and off a semiconductor switching element included in the power converter, based on the time of outputting of the voltage vector adjusted by the voltage-vector adjusting unit.
    • 一种用于控制功率转换器的装置,包括电压矢量控制单元,其基于功率转换器的电压指令值,确定在脉冲宽度调制控制的一个控制周期中从功率转换器输出的电压矢量和输出 电压矢量,电压矢量调整单元,其调整电压矢量的输出时间,使得零电压矢量的输出时间大于固定时间或零,以及产生信号的点火脉冲发生单元 用于基于由电压矢量调整单元调整的电压矢量的输出时间来接通和关断包括在功率转换器中的半导体开关元件。
    • 9. 发明授权
    • Induction motor controller
    • 感应电动机控制器
    • US6066934A
    • 2000-05-23
    • US171569
    • 1998-10-21
    • Toshiyuki KaitaniTetuaki NaganoAkira ImanakaYasuhiro Shiraishi
    • Toshiyuki KaitaniTetuaki NaganoAkira ImanakaYasuhiro Shiraishi
    • H02P21/00H02P21/14H02P23/08H02P27/08H02P7/63
    • H02P27/08H02P21/16H02P23/08
    • The invention is an induction motor controller for measuring electrical constants of a polyphase induction motor (102) by supplying test power thereto and controlling driving of the polyphase induction motor with a polyphase inverter (105) by using parameters for controlling driving of a result of the measurement. This controller has a first computing means (106) for computing secondary winding resistance R2 as well as leakage inductance L corresponding to each of test conditions provided with test power having three different frequencies f; a second computing means (107) for obtaining a rational function by substituting the secondary winding resistance R2 as well as leakage inductance L corresponding to each of the test conditions in the rational function including a quadratic equation of a frequency f with the secondary winding resistance R2 as a denominator and the leakage inductance L as a numerator and computing the secondary winding resistance R2 as well as leakage inductance L by substituting a desired secondary slip frequency in this obtained rational function.
    • PCT No.PCT / JP97 / 00752 Sec。 371日期:1998年10月21日 102(e)日期1998年10月21日PCT 1997年3月11日PCT公布。 出版物WO98 / 40964 日期1998年9月17日本发明是一种感应电动机控制器,用于通过向多相感应电动机(102)提供测试电力来测量多相感应电动机(102)的电常数,并通过使用用于控制驾驶的参数来控制多相异步电动机的驱动 的测量结果。 该控制器具有第一计算装置(106),用于计算次级绕组电阻R2以及与提供有具有三个不同频率f的测试功率的每个测试条件相对应的漏电感L; 第二计算装置(107),用于通过用次级绕组电阻R2代替次级绕组电阻R2以及与包括次级绕组电阻R2的频率f的二次方程的有理函数中的每个测试条件相对应的漏电感L来获得有理函数 作为分母,漏电感L作为分子,通过在该获得的有理函数中代替期望的次滑差频率来计算次级绕组电阻R2以及漏电感L。
    • 10. 发明申请
    • POWER CONVERSION DEVICE
    • 电源转换器件
    • US20140009096A1
    • 2014-01-09
    • US14000255
    • 2011-03-10
    • Akira ImanakaMasaya Harakawa
    • Akira ImanakaMasaya Harakawa
    • H02M5/458
    • H02M5/458H02M3/155H02M7/5387H02M7/5388
    • A power conversion device is provided in which destruction of a switching element can be avoided by preventing an excessive current from flowing into the switching element of a main circuit when, for example, a power supply for the power conversion device is interrupted. The power conversion device including a first switch unit in which a plurality of switching elements are series-connected is characterized by including, in the plurality of switching elements, at least one or more switching elements whose gate voltage thresholds are no more than a predetermined value and at least one or more switching elements whose gate voltage thresholds are more than the predetermined value.
    • 提供了一种电力转换装置,其中例如当电力转换装置的电源被中断时,可以通过防止过电流流入主电路的开关元件来避免开关元件的破坏。 包括其中多个开关元件串联连接的第一开关单元的功率转换装置的特征在于,在多个开关元件中包括栅极电压阈值不大于预定值的至少一个或多个开关元件 以及栅极电压阈值大于预定值的至少一个或多个开关元件。