专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20110292700A1 POWER CONVERSION DEVICE AND METHOD FOR CONTROLLING THEREOF 有权
标题翻译：电力转换装置及其控制方法
公开(公告)号：US20110292700A1
公开(公告)日：2011-12-01
申请号：US13147807
申请日：2010-02-17
申请人： Yoichiro Arakawa , Koichiro Nagata , Yuusuke Arao , Shigehisa Aoyagi
发明人： Yoichiro Arakawa , Koichiro Nagata , Yuusuke Arao , Shigehisa Aoyagi
IPC分类号： H02M7/44
CPC分类号： H02M7/53871 , H02M1/12 , H02M1/15 , H02M7/5395 , H02M2001/0009
摘要： In a power conversion device that includes a PWM converting means for generating a PWM pulse by comparing three-phase voltage commands with a triangular wave carrier signal, a power converter for converting between a DC voltage and a three-phase AC voltage by driving a switching element according to the PWM pulse, a current detecting means for detecting a pulsed current flowing through a DC bus conductor of a main circuit, and a voltage command correcting means for correcting three-phase voltage commands, which corrects the three-phase voltage commands so that a line voltage value between the maximum phase and an intermediate phase and a line voltage value between the intermediate phase and the minimum phase are each equal to or larger than a predetermined value, the maximum phase, intermediate phase, and minimum phase being determined in correspondence to momentary values of the three-phase voltage commands arranged in descending order, if the voltage command is outside an allowable upper limit or lower limit, not only the voltage command for the maximum phase and/or the minimum phase but also the voltage command for the intermediate phase are corrected.Accordingly, the inability to detect a current due to a restriction imposed by an upper limit or a lower limit for an output voltage is eliminated, and highly precise control of the power conversion device is achieved independently of the situation.
摘要翻译：一种电力转换装置，其特征在于，包括：PWM转换装置，用于通过将三相电压指令与三角波载波信号进行比较来产生PWM脉冲;功率转换器，用于通过驱动开关转换直流电压和三相交流电压元件，用于检测流过主电路的直流总线导体的脉冲电流的电流检测装置，以及用于校正三相电压指令的三相电压指令的电压指令校正装置，其校正三相电压指令最大相和中间相之间的线电压值和中间相和最小相之间的线电压值均等于或大于预定值，最大相位，中间相位和最小相位在对应于以降序排列的三相电压命令的瞬时值，如果电压指令在允许的u之外 pper极限或下限，不仅对最大相位和/或最小相位的电压指令以及中间相位的电压指令进行校正。因此，消除了由于对输出电压的上限或下限引起的限制而不能检测电流，并且独立于这种情况实现了电力转换装置的高精度控制。

2. 发明授权

US08710781B2 Power conversion device and method for controlling thereof 有权
标题翻译：电力转换装置及其控制方法
公开(公告)号：US08710781B2
公开(公告)日：2014-04-29
申请号：US13147807
申请日：2010-02-17
申请人： Yoichiro Arakawa , Koichiro Nagata , Yuusuke Arao , Shigehisa Aoyagi
发明人： Yoichiro Arakawa , Koichiro Nagata , Yuusuke Arao , Shigehisa Aoyagi
IPC分类号： H02P6/00
CPC分类号： H02M7/53871 , H02M1/12 , H02M1/15 , H02M7/5395 , H02M2001/0009
摘要： In a power conversion device that includes a PWM converting means for generating a PWM pulse by comparing three-phase voltage commands with a triangular wave carrier signal, a power converter for converting between a DC voltage and a three-phase AC voltage by driving a switching element according to the PWM pulse, a current detecting means for detecting a pulsed current flowing through a DC bus conductor of a main circuit, and a voltage command correcting means for correcting three-phase voltage commands, which corrects the three-phase voltage commands so that a line voltage value between the maximum phase and an intermediate phase and a line voltage value between the intermediate phase and the minimum phase are each equal to or larger than a predetermined value, the maximum phase, intermediate phase, and minimum phase being determined in correspondence to momentary values of the three-phase voltage commands arranged in descending order, if the voltage command is outside an allowable upper limit or lower limit, not only the voltage command for the maximum phase and/or the minimum phase but also the voltage command for the intermediate phase are corrected.Accordingly, the inability to detect a current due to a restriction imposed by an upper limit or a lower limit for an output voltage is eliminated, and highly precise control of the power conversion device is achieved independently of the situation.
摘要翻译：一种电力转换装置，其特征在于，包括：PWM转换装置，用于通过将三相电压指令与三角波载波信号进行比较来产生PWM脉冲;功率转换器，用于通过驱动开关转换直流电压和三相交流电压元件，用于检测流过主电路的直流母线导体的脉冲电流的电流检测装置，以及用于校正三相电压指令的三相电压指令的电压指令校正装置，其校正三相电压指令最大相和中间相之间的线电压值和中间相和最小相之间的线电压值均等于或大于预定值，最大相位，中间相位和最小相位在对应于以降序排列的三相电压命令的瞬时值，如果电压指令在允许的u之外 pper极限或下限，不仅对最大相位和/或最小相位的电压指令以及中间相位的电压指令进行校正。因此，消除了由于对输出电压的上限或下限引起的限制而不能检测电流，并且独立于这种情况实现了电力转换装置的高精度控制。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式