公开(公告)号：US06288921B1

公开(公告)日：2001-09-11

申请号：US09639882

申请日：2000-08-17

申请人： Hiroshi Uchino ,  Ryuichi Morikawa ,  Kiyoshi Kusunoki ,  Takeo Kanai ,  Tadashi Nishikawa

发明人： Hiroshi Uchino ,  Ryuichi Morikawa ,  Kiyoshi Kusunoki ,  Takeo Kanai ,  Tadashi Nishikawa

IPC分类号： H02M75387

CPC分类号： H02M7/487 ,  H02M7/527 ,  H02M2007/53876

摘要： A control apparatus for a power converter having a plurality of semiconductor switching devices that converts DC power into AC power and outputs three levels of voltages, including a command voltage generator configured to output a command voltage vector that represents a voltage to be output from the power converter, an integrator configured to calculate a difference integral vector by integrating a difference between the command voltage vector and an output voltage vector that represents a voltage command for the power converter, a difference vector calculator configured to calculate difference vectors by subtracting the command voltage vector from each of the possible output voltage vectors, a vector selector configured to select one of the possible output voltage vectors which corresponds to one of the difference vectors making the largest angle with the difference integral vector as the output voltage vector only if the difference integral vector exceeds a predetermined value, and a gate signal generator configured to determine one of switching states that includes a plurality of ON-OFF pattern signals for turning on and off the semiconductor switching devices on the basis of the output voltage vector.

摘要翻译： 一种用于功率转换器的控制装置，具有多个半导体开关器件，其将DC电力转换为AC电力并输出三个电压电平，包括命令电压发生器，其被配置为输出表示从功率输出的电压的指令电压矢量 转换器，积分器，被配置为通过积分指示电压矢量和表示电力转换器的电压指令的输出电压矢量之间的差来计算差分积分矢量;差分矢量计算器，被配置为通过减去指令电压矢量 从每个可能的输出电压矢量，矢量选择器被配置为选择一个可能的输出电压矢量，该输出电压矢量对应于与差积分矢量产生最大角度的一个差分矢量作为输出电压矢量，只有当差积分矢量 超过预定值， 门信号发生器，其被配置为基于输出电压矢量来确定包括用于接通和断开半导体开关器件的多个导通和截止图案信号的开关状态之一。

公开(公告)号：US5570260A

公开(公告)日：1996-10-29

申请号：US160847

申请日：1993-12-03

申请人： Takeo Kanai ,  Kiyoshi Kusunoki

发明人： Takeo Kanai ,  Kiyoshi Kusunoki

IPC分类号： H02H7/08 ,  H02H3/00 ,  H02H7/12 ,  H02H7/125 ,  H02H9/04 ,  H02M1/00 ,  H02M1/088 ,  H02M7/515 ,  H02P23/00 ,  H02H9/00

CPC分类号： H02M1/088 ,  H02H3/006 ,  H02H7/08 ,  H02H7/125

摘要： An overvoltage protection circuit including a plurality of series connected thyristors having an overvoltage protection function and a plurality of impedance circuits. Each of the impedance circuits is connected in parallel with one of the thyristors, respectively. The impedance circuits include at least a first impedance circuit having a first impedance value and a second impedance circuit having a second impedance value which is different from the first impedance value.

摘要翻译： 一种过电压保护电路，包括具有过电压保护功能的多个串联连接的晶闸管和多个阻抗电路。 每个阻抗电路分别与一个晶闸管并联连接。 阻抗电路至少包括具有第一阻抗值的第一阻抗电路和具有与第一阻抗值不同的第二阻抗值的第二阻抗电路。