公开(公告)号：US20050024902A1

公开(公告)日：2005-02-03

申请号：US10632257

申请日：2003-08-01

申请人： Silva Hiti ,  Constantin Stancu ,  Khwaja Rahman ,  Scott Downer ,  James Nagashima ,  Eric Ostrom

发明人： Silva Hiti ,  Constantin Stancu ,  Khwaja Rahman ,  Scott Downer ,  James Nagashima ,  Eric Ostrom

IPC分类号： H02M7/5387 ,  H02P27/12 ,  H02M5/45

CPC分类号： H02P27/12 ,  H02M7/5387 ,  H02M2001/0054 ,  H02M2007/53876 ,  Y02B70/1491

摘要： The present invention includes a method for thermal management in a voltage source inverter. The method includes sensing a low output frequency condition, determining a zero vector modulation responsive to the sensed low output frequency condition, and applying the determined zero vector modulation to reduce thermal stress in the voltage source inverter. The step of determining the zero vector modulation responsive to the sensed low output frequency condition includes mapping an output voltage requirement to a space vector structure and determining state switching space vectors based on the mapped output voltage requirement. The step of determining the state switching space vector includes determining active state switching space vectors associated with the state switching space vectors, determining duty cycles for the active state switching space vectors based on the active state switching space vectors, and determining a duty cycle for at least one zero state switching space vector based on the determined duty cycles of the active state switching space vectors and a switching period.

摘要翻译： 本发明包括电压源逆变器中的热管理方法。 该方法包括感测低输出频率条件，响应于感测的低输出频率条件确定零矢量调制，以及应用所确定的零矢量调制以减小电压源逆变器中的热应力。 响应于感测的低输出频率条件来确定零矢量调制的步骤包括将输出电压需求映射到空间矢量结构，并且基于映射的输出电压要求来确定状态切换空间矢量。 确定状态切换空间矢量的步骤包括确定与状态切换空间矢量相关联的活动状态切换空间矢量，基于活动状态切换空间矢量确定活动状态切换空间矢量的占空比，以及确定在 基于确定的活动状态切换空间矢量的占空比和切换周期的至少一个零状态切换空间矢量。

公开(公告)号：US08811038B2

公开(公告)日：2014-08-19

申请号：US13294858

申请日：2011-11-11

申请人： Scott Downer ,  Naimish Patel

发明人： Scott Downer ,  Naimish Patel

IPC分类号： H02M3/335 ,  H02M3/28

CPC分类号： H02M3/28 ,  Y02B70/1491

摘要： A switching and control arrangement are provided along with a transformer arrangement such that semiconductor-based switches can be used in a medium DC voltage to AC inverter in a medium voltage to low voltage DC to DC converter. The switching arrangement on the secondary side of the transformer arrangement controls a current ramp up or down of switches on the primary side of the transformer that are used to convert DC to AC, thereby permitting for soft switching of those switches.

摘要翻译： 提供开关和控制装置以及变压器布置，使得基于半导体的开关可以在中压至低压DC至DC转换器中的AC逆变器的中等DC电压中使用。 变压器装置的次级侧的开关装置控制变压器初级侧的开关的电流斜坡上升或下降，用于将DC转换成AC，从而允许这些开关的软开关。

公开(公告)号：US20130121030A1

公开(公告)日：2013-05-16

申请号：US13294858

申请日：2011-11-11

申请人： Scott Downer ,  Naimish Patel

发明人： Scott Downer ,  Naimish Patel

IPC分类号： H02M3/24

CPC分类号： H02M3/28 ,  Y02B70/1491

摘要： A switching and control arrangement are provided along with a transformer arrangement such that semiconductor-based switches can be used in a medium DC voltage to AC inverter in a medium voltage to low voltage DC to DC converter. The switching arrangement on the secondary side of the transformer arrangement controls a current ramp up or down of switches on the primary side of the transformer that are used to convert DC to AC, thereby permitting for soft switching of those switches.

摘要翻译： 提供开关和控制装置以及变压器布置，使得基于半导体的开关可以在中压至低压DC至DC转换器中的AC逆变器的中等DC电压中使用。 变压器装置的次级侧的开关装置控制变压器初级侧的开关的电流斜坡上升或下降，用于将DC转换成AC，从而允许这些开关的软开关。