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    • 1. 发明申请
    • Power Conversion Device and Temperature Rise Calculation Method Thereof
    • 电力转换装置及其升温计算方法
    • US20130119912A1
    • 2013-05-16
    • US13806822
    • 2011-06-23
    • Hideki AyanoKatsumi IshikawaKazutoshi OgawaTsutomu KominamiMami Kunihiro
    • Hideki AyanoKatsumi IshikawaKazutoshi OgawaTsutomu KominamiMami Kunihiro
    • H02P29/00
    • H02P29/0088H02M1/32H02M7/5387H02M2001/327H02P21/06H02P29/68
    • A temperature rise of a semiconductor switching element, which is part of a power conversion device such as an inverter, is estimated by an extremely simple method to assess the degradation and remaining lifetime of the semiconductor switching element.In a heat generation amount calculation unit 12 in a calculation processor 3, current command values Id* and Iq* and voltage command values vu*, vv* and vw* are used to calculate a chip loss. First, current values iu*, iv* and iw* of all output phases are estimated from the current command values. The ON/OFF loss of the chip is represented by a function of an estimated value for a current flowing in each output phase, and the loss can be derived by integration with a PWM carrier frequency f. In addition, with respect to a conduction loss, it is necessary to integrate a conduction time with the estimated current value and a saturation voltage, which is a function of the estimated current value. In this case, the conduction time is calculated from a relationship between a carrier amplitude and the voltage command value in each control cycle fsw of the switching element. In addition, an ambient temperature sensor is added to calculate an absolute temperature.
    • 作为逆变器等功率转换装置的一部分的半导体开关元件的温度上升通过非常简单的方法来估计半导体开关元件的劣化和剩余寿命来估计。 在计算处理器3中的发热量计算单元12中,使用电流指令值Id *和Iq *以及电压指令值vu *,vv *和vw *来计算芯片损耗。 首先,从当前命令值估计所有输出相位的当前值iu *,iv *和iw *。 芯片的ON / OFF损耗由在每个输出相中流动的电流的估计值的函数表示,并且可以通过与PWM载波频率f的积分来导出损耗。 此外,对于导通损耗,需要将导通时间与估计电流值和作为估计电流值的函数的饱和电压进行积分。 在这种情况下,根据开关元件的各控制周期fsw中的载波幅度与电压指令值之间的关系来计算导通时间。 另外,添加环境温度传感器来计算绝对温度。
    • 7. 发明申请
    • POWER CONVERTER AND MOTOR DRIVING DEVICE USING THE SAME
    • 电动转换器和使用该电动机的电动机驱动装置
    • US20120007533A1
    • 2012-01-12
    • US13176776
    • 2011-07-06
    • Kazutoshi OGAWAKatsumi Ishikawa
    • Kazutoshi OGAWAKatsumi Ishikawa
    • H02P27/04H02M11/00
    • H02M7/5387H02M7/003Y02B70/1441
    • In order to reduce the average power of the ringing noise, the present invention provides a power converter comprising: an arm circuit including a high-voltage side switching device to which a first diode is connected in parallel and a low-voltage side switching device to which a second diode is connected in parallel; and a main power supply connected to a series circuit of the high-voltage side switching device and the low-voltage side switching device, wherein a connecting point between the high-voltage side switching device and the low-voltage side switching device is connected to a load, and a resonant frequency calculated from inductances of wirings of a closed circuit including the first diode, the second diode, and the main power supply and a capacitance across the first diode is different form that calculated from the inductances of the wirings and a capacitance across the second diode.
    • 为了降低振铃噪声的平均功率,本发明提供了一种功率变换器,包括:臂电路,包括并联连接有第一二极管的高压侧开关装置和低压侧开关装置, 第二二极管并联连接; 以及连接到高压侧开关装置和低压侧开关装置的串联电路的主电源,其中高压侧开关装置和低压侧开关装置之间的连接点连接到 负载和由包括第一二极管,第二二极管和主电源的闭合电路的电感的电感计算出的谐振频率以及跨第一二极管的电容的不同形式,其从布线的电感和 电容跨越第二个二极管。
    • 8. 发明申请
    • SWITCHING CIRCUIT AND POWER CONVERTER
    • 切换电路和电源转换器
    • US20100207450A1
    • 2010-08-19
    • US12707180
    • 2010-02-17
    • Kazutoshi OGAWAKatsumi Ishikawa
    • Kazutoshi OGAWAKatsumi Ishikawa
    • H02J1/10
    • H02M1/08Y10T307/50
    • The invention provides a switching circuit and a power converter having a built-in power source for a conduction control terminal even if they have a single-arm structure. In the switching circuit having a switching device and a conduction control terminal power source capacitor, a negative terminal of the capacitor is connected to a reference voltage terminal of a main power source and to the gate terminal selectively through a half-bridge circuit and a positive terminal of the capacitor is selectively connected to a positive terminal of the main power source and to a source terminal of the switching device through a half-bridge circuit. The capacitor is charged when the positive terminal is connected to the main power source and discharges when the negative terminal is connected to the gate terminal and the positive terminal is connected to the source terminal and applies voltage to the gate terminal of the switching device.
    • 本发明提供了一种开关电路和功率转换器,其具有用于导电控制端子的内置电源,即使它们具有单臂结构。 在具有开关器件和导通控制端子电源电容器的开关电路中,电容器的负极端子通过半桥电路和正极连接到主电源的基准电压端子和栅极端子 电容器的端子通过半桥电路选择性地连接到主电源的正极端子和开关器件的源极端子。 当正极连接到主电源时,电容器被充电,当负极连接到栅极端子并且正极端子连接到源极端子并且向开关装置的栅极端子施加电压时,电容器被充电。
    • 9. 发明授权
    • Switching circuit and power converter
    • 开关电路和电源转换器
    • US08110944B2
    • 2012-02-07
    • US12707180
    • 2010-02-17
    • Kazutoshi OgawaKatsumi Ishikawa
    • Kazutoshi OgawaKatsumi Ishikawa
    • H02J1/10
    • H02M1/08Y10T307/50
    • The invention provides a switching circuit and a power converter having a built-in power source for a conduction control terminal even if they have a single-arm structure. In the switching circuit having a switching device and a conduction control terminal power source capacitor, a negative terminal of the capacitor is connected to a reference voltage terminal of a main power source and to the gate terminal selectively through a half-bridge circuit and a positive terminal of the capacitor is selectively connected to a positive terminal of the main power source and to a source terminal of the switching device through a half-bridge circuit. The capacitor is charged when the positive terminal is connected to the main power source and discharges when the negative terminal is connected to the gate terminal and the positive terminal is connected to the source terminal and applies voltage to the gate terminal of the switching device.
    • 本发明提供了一种开关电路和功率转换器,其具有用于导电控制端子的内置电源,即使它们具有单臂结构。 在具有开关器件和导通控制端子电源电容器的开关电路中,电容器的负极端子通过半桥电路和正极连接到主电源的基准电压端子和栅极端子 电容器的端子通过半桥电路选择性地连接到主电源的正极端子和开关器件的源极端子。 当正极连接到主电源时,电容器被充电,当负极连接到栅极端子并且正极端子连接到源极端子并且向开关装置的栅极端子施加电压时,电容器被充电。
    • 10. 发明授权
    • Power converter and motor driving device using the same
    • 电源转换器和电机驱动装置使用相同
    • US08619448B2
    • 2013-12-31
    • US13176776
    • 2011-07-06
    • Kazutoshi OgawaKatsumi Ishikawa
    • Kazutoshi OgawaKatsumi Ishikawa
    • H02M7/5387
    • H02M7/5387H02M7/003Y02B70/1441
    • In order to reduce the average power of the ringing noise, the present invention provides a power converter comprising: an arm circuit including a high-voltage side switching device to which a first diode is connected in parallel and a low-voltage side switching device to which a second diode is connected in parallel; and a main power supply connected to a series circuit of the high-voltage side switching device and the low-voltage side switching device, wherein a connecting point between the high-voltage side switching device and the low-voltage side switching device is connected to a load, and a resonant frequency calculated from inductances of wirings of a closed circuit including the first diode, the second diode, and the main power supply and a capacitance across the first diode is different form that calculated from the inductances of the wirings and a capacitance across the second diode.
    • 为了降低振铃噪声的平均功率,本发明提供了一种功率变换器,包括:臂电路,包括并联连接有第一二极管的高压侧开关装置和低压侧开关装置, 第二二极管并联连接; 以及连接到高压侧开关装置和低压侧开关装置的串联电路的主电源,其中高压侧开关装置和低压侧开关装置之间的连接点连接到 负载和由包括第一二极管,第二二极管和主电源的闭合电路的电感的电感计算出的谐振频率以及跨第一二极管的电容的不同形式,其从布线的电感和 电容跨越第二个二极管。