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1. 发明申请

US20140232309A1 POWER CONVERTER 有权
标题翻译：电源转换器
公开(公告)号：US20140232309A1
公开(公告)日：2014-08-21
申请号：US14348377
申请日：2012-09-28
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Yueqiang Zhou , Toshiyuki Maeda
IPC分类号： H02P21/00
CPC分类号： H02P21/05 , H02P21/06 , H02P27/08
摘要： In a power converter, vibration and noise of a motor due to pulsation of a direct current link voltage are reduced. An inverter circuit is provided, which is configured to convert a direct current link voltage having a pulsating component to an alternating current to output the alternating current to a permanent magnet synchronous motor. A controller is provided, which is configured to control the inverter circuit by vector control and which, in a control state in which fundamental voltage vectors do not include a zero vector (voltage vector for which a motor terminal voltage is zero), performs such control that the phase of a resultant voltage vector of a d-axis voltage vector and a q-axis voltage vector of the permanent magnet synchronous motor varies depending on pulsation.
摘要翻译：在功率转换器中，由于直流母线电压的脉动引起的电动机的振动和噪声降低。提供了一种逆变器电路，其被配置为将具有脉动分量的直流链路电压转换为交流电，以将交流电输出到永磁同步电动机。提供了一种控制器，其被配置为通过矢量控制来控制逆变器电路，并且在基本电压矢量不包括零矢量（电动机端子电压为零的电压矢量）的控制状态下，执行这样的控制永磁同步电动机的d轴电压矢量和q轴电压矢量的合成电压矢量的相位根据脉动而变化。

2. 发明授权

US10903755B2 Power conversion device 有权
公开(公告)号：US10903755B2
公开(公告)日：2021-01-26
申请号：US16760741
申请日：2018-10-30
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Yueqiang Zhou , Reiji Kawashima
IPC分类号： H02M7/48
摘要： A power conversion device includes a power conversion unit that converts power into AC power having a predetermined frequency and voltage through a switching operation of a plurality of switching elements, a DC unit including a capacitor and a reactor, and a controller that controls the switching operation. The capacitor smooths a ripple caused by the switching operation in the power conversion unit. The controller monitors an indicator value correlated with a disturbance that distorts an input current supplied to the power conversion unit, and compensates a manipulated variable of control of the switching operation in the power conversion unit in accordance with at least a frequency component closest to a resonant frequency of the DC unit among a plurality of frequency components. The frequency components are included in variations in the indicator value and correspond to integral multiples of a power source frequency of an AC power source.

3. 发明授权

US09287815B2 Power converter 有权
标题翻译：电源转换器
公开(公告)号：US09287815B2
公开(公告)日：2016-03-15
申请号：US14348377
申请日：2012-09-28
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Yueqiang Zhou , Toshiyuki Maeda
IPC分类号： H02P21/00 , H02P27/08 , H02P21/05 , H02P21/06
CPC分类号： H02P21/05 , H02P21/06 , H02P27/08
摘要： In a power converter, vibration and noise of a motor due to pulsation of a direct current link voltage are reduced. An inverter circuit is provided, which is configured to convert a direct current link voltage having a pulsating component to an alternating current to output the alternating current to a permanent magnet synchronous motor. A controller is provided, which is configured to control the inverter circuit by vector control and which, in a control state in which fundamental voltage vectors do not include a zero vector (voltage vector for which a motor terminal voltage is zero), performs such control that the phase of a resultant voltage vector of a d-axis voltage vector and a q-axis voltage vector of the permanent magnet synchronous motor varies depending on pulsation.
摘要翻译：在功率转换器中，由于直流母线电压的脉动引起的电动机的振动和噪声降低。提供了一种逆变器电路，其被配置为将具有脉动分量的直流链路电压转换为交流电，以将交流电输出到永磁同步电动机。提供了一种控制器，其被配置为通过矢量控制来控制逆变器电路，并且在基本电压矢量不包括零矢量（电动机端子电压为零的电压矢量）的控制状态下，执行这样的控制永磁同步电动机的d轴电压矢量和q轴电压矢量的合成电压矢量的相位根据脉动而变化。

4. 发明申请

US20140319673A1 SEMICONDUCTOR DEVICE 审中-公开
标题翻译：半导体器件
公开(公告)号：US20140319673A1
公开(公告)日：2014-10-30
申请号：US14356459
申请日：2012-11-07
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Yueqiang Zhou , Toshiyuki Maeda
IPC分类号： H01L23/46
CPC分类号： H01L23/46 , H01L23/4334 , H01L23/473 , H01L23/492 , H01L23/49562 , H01L23/49575 , H01L2224/48091 , H01L2924/1305 , H01L2924/13055 , H01L2924/30107 , H01L2924/3011 , H02M7/003 , H01L2924/00014 , H01L2924/00
摘要： In a semiconductor device in which a semiconductor chip is cooled by a cooler, an insulating member between a semiconductor chip and a cooler is omitted in order to simplify the configuration. A cooler (23, 24, 25) for performing heat exchange between a semiconductor chip (21, 22) and a refrigerant is provided. The refrigerant is non-conductive. The semiconductor chip (21, 22) and the cooler (23, 24, 25) are connected to each other through a conductive connection component (28) or are directly connected to each other.
摘要翻译：在半导体芯片被冷却器冷却的半导体装置中，省略了半导体芯片和冷却器之间的绝缘构件，以简化构造。提供了用于在半导体芯片（21,22）和制冷剂之间进行热交换的冷却器（23,24,25）。制冷剂不导电。半导体芯片（21,22）和冷却器（23,24,25）通过导电连接部件（28）彼此连接或者彼此直接连接。

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