公开(公告)号：US08354813B2

公开(公告)日：2013-01-15

申请号：US12808001

申请日：2008-12-10

申请人： Ryuta Hasegawa ,  Ryuichi Morikawa ,  Toshiharu Oobu

发明人： Ryuta Hasegawa ,  Ryuichi Morikawa ,  Toshiharu Oobu

IPC分类号： H02P27/06

CPC分类号： H02P29/68 ,  B60L3/003 ,  B60L15/20 ,  B60L2240/423 ,  B60L2240/525 ,  B60W10/08 ,  H02M2001/327 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

摘要： A torque limit section that applies limit to a torque instruction value of an electric motor such that a switching elements temperature is restricted to no more than an element upper limiting temperature includes a torque restriction section that finds a torque restriction value for restricting the torque of the electric motor in accordance with the said switching elements temperature; a torque restriction mitigation section that finds a torque restriction mitigation value for mitigating the torque limit value in accordance with the integrated value of the deviation of the element upper limiting temperature and the switching elements temperature; a first subtractor that finds a torque restriction value by subtracting the torque restriction mitigation value from the torque limit value; and a second subtractor that finds a limited torque instruction value obtained by subtracting the torque limit value from the torque instruction value and outputs this to the gate generating section.

摘要翻译： 将开关元件温度限制在元件上限温度以下的电动机的转矩指令值施加限制的转矩限制部包括转矩限制部，其求出用于限制转矩元件的转矩的转矩限制值 电动机按照所述开关元件的温度; 扭矩限制缓解部，其根据元件上限温度和开关元件温度的偏差的积分值，求出用于减轻转矩限制值的转矩限制减小值; 第一减法器，通过从所述转矩极限值减去所述转矩限制减小值，求出转矩限制值; 以及第二减法器，其通过从所述转矩指令值减去所述转矩极限值而获得有限的转矩指令值，并将其输出到所述门产生部。

公开(公告)号：US20100320951A1

公开(公告)日：2010-12-23

申请号：US12808001

申请日：2008-12-10

申请人： Ryuta Hasegawa ,  Ryuichi Morikawa ,  Toshiharu Oobu

发明人： Ryuta Hasegawa ,  Ryuichi Morikawa ,  Toshiharu Oobu

IPC分类号： H02P7/29 ,  H02H7/122

CPC分类号： H02P29/68 ,  B60L3/003 ,  B60L15/20 ,  B60L2240/423 ,  B60L2240/525 ,  B60W10/08 ,  H02M2001/327 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

摘要： A torque limit section that applies limit to a torque instruction value of an electric motor such that a switching elements temperature is restricted to no more than an element upper limiting temperature includes a torque restriction section that finds a torque restriction value for restricting the torque of the electric motor in accordance with the said switching elements temperature; a torque restriction mitigation section that finds a torque restriction mitigation value for mitigating the torque limit value in accordance with the integrated value of the deviation of the element upper limiting temperature and the switching elements temperature; a first subtractor that finds a torque restriction value by subtracting the torque restriction mitigation value from the torque limit value; and a second subtractor that finds a limited torque instruction value obtained by subtracting the torque limit value from the torque instruction value and outputs this to the gate generating section.

摘要翻译： 将开关元件温度限制在元件上限温度以下的电动机的转矩指令值施加限制的转矩限制部包括转矩限制部，其求出用于限制转矩元件的转矩的转矩限制值 电动机按照所述开关元件的温度; 扭矩限制缓解部，其根据元件上限温度和开关元件温度的偏差的积分值，求出用于减轻转矩限制值的转矩限制减小值; 第一减法器，通过从所述转矩极限值减去所述转矩限制减小值，求出转矩限制值; 以及第二减法器，其通过从所述转矩指令值减去所述转矩极限值而获得有限的转矩指令值，并将其输出到所述门产生部。

公开(公告)号：US07969227B2

公开(公告)日：2011-06-28

申请号：US12906715

申请日：2010-10-18

申请人： Ryuta Hasegawa ,  Ryuichi Morikawa ,  Nobumitsu Tada ,  Masami Hirata

发明人： Ryuta Hasegawa ,  Ryuichi Morikawa ,  Nobumitsu Tada ,  Masami Hirata

IPC分类号： H03K3/42

CPC分类号： H02M1/32 ,  G01K3/005 ,  G01K7/01 ,  G01K2219/00 ,  H02M7/5387 ,  H02M2001/327

摘要： According to one embodiment, a temperature detection circuit is provided which requires only a small number of additional components, thus minimizing an increase in costs and which offers an insulating property and high responsiveness. A temperature detection circuit outputs a first PWM signal corresponding to a temperature of a first temperature sensor from a photointerrupter as a signal insulated from the first temperature sensor. A temperature detection circuit outputs a second PWM signal corresponding to a temperature of a second temperature sensor from a photointerrupter as a signal insulated from the second temperature sensor. A controlling arithmetic apparatus calculates a higher one of the temperatures detected by the first and second temperature sensors based on the PWM signals output from the photointerrupter.

摘要翻译： 根据一个实施例，提供了仅需要少量附加部件的温度检测电路，从而最小化成本的增加并且提供绝缘性能和高响应性。 温度检测电路作为与第一温度传感器绝缘的信号，从光断续器输出对应于第一温度传感器的温度的第一PWM信号。 温度检测电路作为与第二温度传感器绝缘的信号，从光断续器输出对应于第二温度传感器的温度的第二PWM信号。 控制运算装置基于从光断续器输出的PWM信号，计算由第一温度传感器和第二温度传感器检测出的温度中的较高值。

公开(公告)号：US20140085954A1

公开(公告)日：2014-03-27

申请号：US13979540

申请日：2012-01-06

申请人： Ryuta Hasegawa ,  Yosuke Nakazawa ,  Naotaka Iio

发明人： Ryuta Hasegawa ,  Yosuke Nakazawa ,  Naotaka Iio

IPC分类号： H02M7/5387

CPC分类号： H02M7/5387 ,  H02M7/483 ,  H02M7/487 ,  H02M7/497 ,  H02M2007/4835

摘要： A semiconductor power conversion device includes n (where n is a natural number) mutually isolated inverse conversion devices that output three-level voltage; and an inverse conversion device, isolated from the inverse conversion devices, that employs as input DC voltage a voltage VDCS of one half or one third of the input DC voltage VDC of the inverse conversion devices and that outputs three-level voltage; and the inverse conversion devices and the inverse conversion device are series-cascade connected, and output a maximum VDC×n+VDCS.

摘要翻译： 半导体功率转换装置包括输出三电平电压的n（n为自然数）相互隔离的逆变换装置; 以及与逆变换装置隔离的逆变换装置，其使用逆变换装置的输入直流电压VDC的一半或三分之一的电压VDCS作为输入DC电压，并输出三电平电压; 并且逆变换装置和逆变换装置串联级联，并输出最大VDC×n + VDCS。

公开(公告)号：US08582335B2

公开(公告)日：2013-11-12

申请号：US13461201

申请日：2012-05-01

申请人： Ryuta Hasegawa ,  Hiroshi Mochikawa ,  Masami Hirata ,  Yukihiko Hatano

发明人： Ryuta Hasegawa ,  Hiroshi Mochikawa ,  Masami Hirata ,  Yukihiko Hatano

IPC分类号： H02M7/5387

CPC分类号： H02M7/48 ,  B60L3/003 ,  H02M2001/327

摘要： An inverter apparatus according to one embodiment includes switching elements and freewheel diodes which are connected to a direct-current power supply, a temperature detector provided near at least one of the switching elements, and a temperature estimation unit. The temperature estimation unit estimates temperatures of switching elements not provided with the temperature detector, based on an estimated-temperature increase value calculated by a loss model of the switching elements and freewheel diode and others, and a temperature of the switching element detected by the temperature detector.

摘要翻译： 根据一个实施例的逆变器装置包括连接到直流电源的开关元件和续流二极管，设置在至少一个开关元件附近的温度检测器和温度估计单元。 温度估计单元基于由开关元件和续流二极管等的损耗模型计算出的估计温度升高值和由温度检测的开关元件的温度来估计未设置有温度检测器的开关元件的温度 探测器。