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公开(公告)号：US20180079605A1
公开(公告)日：2018-03-22
申请号：US15823573
申请日：2017-11-28
发明人： Minoru KOGA , Hiromitsu AKAE , Yuki HONDA , Mina ORII , Go YAMAGUCHI , Sohei OGA , Hidenori HARA
摘要： A conveying system includes at least one guide unit and a carrier. The guide unit includes a traveling surface, at least one guide rail, and a magnetic member formed of a soft magnetic material and including a plurality of salient poles aligned along a conveying path. The carrier includes at least one roller coming in contact with the guide rail from a side direction, at least one wheel coming in contact with the traveling surface, and a plurality of coils provided to overlap with the magnetic member in plan view, and configured to generate thrust along the conveying path and attraction toward the magnetic member by generating a moving magnetic field acting on the magnetic member in accordance with supply of power.
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公开(公告)号：US20140117917A1
公开(公告)日：2014-05-01
申请号：US14031047
申请日：2013-09-19
发明人： Kotaro TAKEDA , Eiji WATANABE , Takashi TANAKA , Kentaro INOMATA , Hidenori HARA , Takuya NAKA , Wataru YOSHINAGA
IPC分类号： H02P27/16
摘要： A matrix converter includes: a power conversion unit provided between an AC power supply and a rotational machine; and a controller for performing power conversion control therebetween by controlling the power conversion unit. The power conversion unit includes multiple bidirectional switches each of which has at least one first directional switching element and at least one second directional switching element. Further, the controller includes a first drive control unit performing the power conversion by simultaneously turning on both of the first directional switching element and the second directional switching element, and a second drive control unit performing the power conversion by turning on one of the first directional switching element and the second directional switching element.
摘要翻译： 矩阵转换器包括：设置在AC电源和旋转机器之间的电力转换单元; 以及控制器，用于通过控制电力转换单元来执行电力转换控制。 功率转换单元包括多个双向开关，每个开关具有至少一个第一方向开关元件和至少一个第二定向开关元件。 此外，控制器包括：第一驱动控制单元，通过同时接通第一方向开关元件和第二方向开关元件两者来执行电力转换;以及第二驱动控制单元，通过接通第一方向开关元件 开关元件和第二定向开关元件。
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公开(公告)号：US20130088904A1
公开(公告)日：2013-04-11
申请号：US13645709
申请日：2012-10-05
IPC分类号： H02M7/12
CPC分类号： H02M1/4225 , H02M7/219 , H02M2001/0054 , Y02B70/126 , Y02B70/1491
摘要： An alternating-current/direct-current converter includes a rectifier, a reactor, a capacitor, and a switching rectifier. The rectifier is configured to rectify alternating-current voltage output from an alternating-current power source, thereby converting the alternating-current voltage into direct-current voltage, and to output the direct-current voltage. The capacitor includes terminals. The switching rectifier is coupled to the AC power source and switchable to output the direct-current voltage to the capacitor.
摘要翻译： 交流/直流电流转换器包括整流器，电抗器，电容器和开关整流器。 整流器被配置为对来自交流电源的交流电压进行整流，从而将交流电压转换成直流电压，并输出直流电压。 电容器包括端子。 开关整流器耦合到AC电源并且可切换以将直流电压输出到电容器。
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公开(公告)号：US20150244287A1
公开(公告)日：2015-08-27
申请号：US14700084
申请日：2015-04-29
IPC分类号： H02M7/537
CPC分类号： H02M7/537 , H02M3/158 , H02M7/53871 , H02M7/5395 , H02M2001/0054 , H02M2001/007 , Y02B70/1491
摘要： A controller of a power conversion apparatus according to an embodiment causes a chopper and an inverter to generate an alternating-current (AC) voltage including first and second parts of an AC voltage waveform and causes the inverter to output the AC voltage. The chopper generates the first part having an absolute value higher than a voltage of a DC power supply, and the inverter generates the second part having an absolute value lower than the voltage of the DC power supply. The controller is configured to alternately turn on the first and second switching elements in a period during which the controller controls the chopper to generate the first part of the AC voltage waveform.
摘要翻译： 根据实施例的电力转换装置的控制器使得斩波器和逆变器产生包括交流电压波形的第一和第二部分的交流（AC）电压，并使逆变器输出交流电压。 斩波器产生具有比直流电源的电压高的绝对值的第一部分，并且逆变器产生具有比直流电源的电压低的绝对值的第二部分。 控制器被配置为在控制器控制斩波器以产生交流电压波形的第一部分的周期期间交替地接通第一和第二开关元件。
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公开(公告)号：US20150097505A1
公开(公告)日：2015-04-09
申请号：US14510234
申请日：2014-10-09
发明人： Tsuneo KUME , Hidenori HARA , Katsutoshi YAMANAKA
IPC分类号： H02P5/74
CPC分类号： H02P5/74 , H02M1/00 , H02M7/5387 , H02P21/06 , H02P27/06
摘要： A current source inverter device according to an embodiment includes an inverter that supplies AC power to a number n (integer of 1 or greater) of AC motors each having a number m (integer of 2 or greater) of windings per phase; and a controller that controls the inverter and AC motor. The inverter includes a switching unit, in which a number n×m+1 of switching elements per phase are connected in series, and a number n×m of nodes among the switching elements are respectively connected with a number n×m of different windings with the same phase among the windings of the number n of the AC motors. The controller includes a mode selector that selects at least one winding as a supply target of the AC power from the number n×m of the windings based on a rotation speed of the AC motor.
摘要翻译： 根据实施例的电流源逆变器装置包括逆变器，其向相位数为m（整数2或更大的整数）的交流电动机的数量n（整数1或更大）提供交流电力; 以及控制逆变器和交流电机的控制器。 逆变器包括开关单元，其中每相的开关元件的数量n×m + 1串联连接，开关元件中的n×m个节点分别与n×m个不同的绕组 在交流电动机数量n的绕组中具有相同的相位。 控制器包括模式选择器，其基于交流电动机的转速，从绕组的数量n×m中选择至少一个绕组作为交流电力的供给目标。
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公开(公告)号：US20210336549A1
公开(公告)日：2021-10-28
申请号：US17241073
申请日：2021-04-27
摘要： A power conversion apparatus includes: matrix converter circuitry to perform power conversion between a primary side electric power and a secondary side electric power; rectifier circuitry to convert the primary side electric power to charge a capacitor; and control circuitry to: set a changeover reference voltage at a first reference voltage when the primary side voltage magnitude is a first voltage magnitude and set the changeover reference voltage at a second reference voltage when the primary side voltage magnitude is a second voltage magnitude; and select, based on the changeover reference voltage and the terminal voltage, a connection state from: a first connection state in which the rectifier circuitry is connected to the capacitor by a first route including a current limit device; and a second connection state in which the rectifier circuitry is connected to the capacitor by a second route that bypasses the current limit device.
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公开(公告)号：US20150137779A1
公开(公告)日：2015-05-21
申请号：US14604756
申请日：2015-01-26
发明人： Yoshiyasu TAKASE , Hidenori HARA , Shinya MORIMOTO
IPC分类号： H02M3/158
摘要： A matrix converter according to an embodiment includes a plurality of bidirectional switches disposed between an AC power source and an AC load, and a controller that controls the bidirectional switches. The controller corrects an output voltage reference based on an oscillation component of an input current and/or an input voltage from the AC power source.
摘要翻译： 根据实施例的矩阵转换器包括设置在AC电源和AC负载之间的多个双向开关，以及控制双向开关的控制器。 控制器基于来自AC电源的输入电流的振荡分量和/或输入电压来校正输出电压基准。
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公开(公告)号：US20140217946A1
公开(公告)日：2014-08-07
申请号：US14162740
申请日：2014-01-24
发明人： Tsuneo KUME , Hidenori HARA , Koji HIGASHIKAWA
IPC分类号： H02P25/18
CPC分类号： H02P25/188 , H02P6/08
摘要： An inverter device includes a power supply unit and a switch controller. The power supply unit supplies AC power to an AC motor whose electric characteristics in response to a rotation speed are switchable between low speed characteristics and high speed characteristics. The switch controller switches the electric characteristics of the AC motor. The switch controller executes switching control that alternately switches the electric characteristics of the AC motor between the low speed characteristics and the high speed characteristics on the basis of the rotation speed of the AC motor.
摘要翻译： 逆变器装置包括电源单元和开关控制器。 电源单元向交流电动机提供交流电力，该电动机的电特性响应于转速可在低速特性和高速特性之间切换。 开关控制器切换交流电机的电气特性。 开关控制器执行根据交流电动机的转速在低速特性和高速特性之间交替地切换交流电动机的电气特性的开关控制。
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公开(公告)号：US20140202781A1
公开(公告)日：2014-07-24
申请号：US14224072
申请日：2014-03-25
发明人： Akira SOMA , Hidenori HARA , Yushi TAKATSUKA
摘要： A motor drive device includes a motor including a high-speed drive winding and a low-speed drive winding, a winding switching portion switching the connection states of the high-speed drive winding and the low-speed drive winding of the motor, a power conversion portion connected to the motor, and a plurality of case portions housing at least the motor, the winding switching portion, and the power conversion portion, while the plurality of case portions are coupled to each other.
摘要翻译： 电动机驱动装置包括：电动机，包括高速驱动绕组和低速驱动绕组;绕组切换部分切换高速驱动绕组和电动机的低速驱动绕组的连接状态;电源 转换部分，以及多个壳体部分，至少容纳电机，绕组切换部分和电力转换部分，同时多个壳体部分彼此联接。
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公开(公告)号：US20140160824A1
公开(公告)日：2014-06-12
申请号：US14101342
申请日：2013-12-10
发明人： Kentaro INOMATA , Katsutoshi YAMANAKA , Hidenori HARA , Shinya MORIMOTO , Kotaro TAKEDA , Takashi TANAKA , Takuya NAKA , Wataru YOSHINAGA
IPC分类号： H02M5/293
摘要： A matrix converter according to an embodiment includes a plurality of bidirectional switches and a controller. The bidirectional switches connect each of phases of an alternating current (AC) power supply with each of phases of a rotary electric machine. The controller controls the bidirectional switches to perform power conversion control between the AC power supply and the rotary electric machine. The controller performs on/off control individually on a plurality of unidirectional switching elements constituting the bidirectional switches by using both 120-degree conduction control and PWM control.
摘要翻译： 根据实施例的矩阵转换器包括多个双向开关和控制器。 双向开关将交流（AC）电源的每个相位与旋转电机的每个相位相连接。 控制器控制双向开关，在交流电源和旋转电机之间进行电源转换控制。 控制器通过使用120度导通控制和PWM控制来对构成双向开关的多个单向开关元件分别执行开/关控制。
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