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1.发明申请POWER CONVERSION APPARATUS, STATUS DETECTION DEVICE, AND METHOD FOR STATUS DETECTION 有权功率转换装置，状态检测装置和状态检测方法公开(公告)号：US20150369852A1
公开(公告)日：2015-12-24
申请号：US14744481
申请日：2015-06-19
发明人： Kenji MITSUDA , Hiroshi Takagi
摘要： A power conversion apparatus includes a power conversion device connected to a 3-phase AC power source, a first fuse positioned on a first phase of the source between the conversion device and the source, a second fuse positioned on a second phase of the source between the conversion device and the source, a first voltage detection device which detects first voltage between a third phase and the first phase of the source on the conversion device side with respect to the first fuse, a second voltage detection device which detects second voltage between the third and second phases of the source on the conversion device side with respect to the second fuse, and a status detection device connected to the first and second voltage devices such that the status device detects status of the first and second fuses based on comparison between detection result of the first and second voltage.
摘要翻译： 电力转换装置包括连接到三相AC电源的电力转换装置，位于转换装置和源极之间的源极的第一相位上的第一熔断器，位于源极的第二相位之间的第二熔断器 所述转换装置和所述源，第一电压检测装置，其相对于所述第一熔丝在所述转换装置侧检测所述源的第三相和所述第一相之间的第一电压;第二电压检测装置，其检测所述转换装置和所述源之间的第二电压; 相对于第二熔丝在转换装置侧的源极的第三和第二相位，以及连接到第一和第二电压装置的状态检测装置，使得状态装置基于检测之间的比较来检测第一和第二保险丝的状态 第一和第二电压的结果。
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公开(公告)号：US10411585B2
公开(公告)日：2019-09-10
申请号：US14298947
申请日：2014-06-08
摘要： An inverter system includes an inverter apparatus and a smoothing capacitor charging-power apparatus. The inverter apparatus includes a transformer and an inverter cell. The transformer includes primary windings and secondary windings. Each of the inverter cells includes a converter circuit, a smoothing capacitor, and an inverter circuit. The converter circuit is configured to convert an intermediate alternating-current voltage to a direct-current voltage. The smoothing capacitor is configured to smooth the direct-current voltage. The inverter circuit is configured to at least partially generate a phase voltage of a variable alternating-current voltage from the direct-current voltage smoothed by the smoothing capacitor. Electric power is to be supplied from a second power supply different from a first power supply to the smoothing capacitor charging-power apparatus. The smoothing capacitor charging-power apparatus is electrically connected to the primary windings to supply initial charging power to the smoothing capacitor via the primary windings and the secondary windings.
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3.发明授权公开(公告)号：US09906168B2
公开(公告)日：2018-02-27
申请号：US14696485
申请日：2015-04-27
发明人： Taisuke Katayama , Hiroshi Takagi
IPC分类号： H02M7/5395 , H02M3/158 , H02M7/487 , H02M7/49 , H02M1/00 , H02M1/32 , H02M7/5387
CPC分类号： H02M7/5395 , H02M3/158 , H02M7/487 , H02M7/49 , H02M2001/0025 , H02M2001/0054 , H02M2001/327 , H02M2007/53876 , Y02B70/1491
摘要： A power converting apparatus is provided. The power converting apparatus includes a power converter configured to output a voltage to a load, and a controller configured to output a PWM signal which is generated in response to a voltage command to the power converter. The power converter includes a plurality of switching elements driven based on the PWM signal. The controller is configured to generate the PWM signal such that a first period during which a zero voltage is outputted and a second period during which a non-zero voltage is outputted are adjusted according to the voltage command. The controller is allowed to output the PWM signal which is set such that one first period and one or more second periods exist within an updating cycle of the voltage command, to the power converter.
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公开(公告)号：US10018665B2
公开(公告)日：2018-07-10
申请号：US14744481
申请日：2015-06-19
发明人： Kenji Mitsuda , Hiroshi Takagi
摘要： A power conversion apparatus includes a power conversion device connected to a 3-phase AC power source, a first fuse positioned on a first phase of the source between the conversion device and the source, a second fuse positioned on a second phase of the source between the conversion device and the source, a first voltage detection device which detects first voltage between a third phase and the first phase of the source on the conversion device side with respect to the first fuse, a second voltage detection device which detects second voltage between the third and second phases of the source on the conversion device side with respect to the second fuse, and a status detection device connected to the first and second voltage devices such that the status device detects status of the first and second fuses based on comparison between detection result of the first and second voltage.
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