公开(公告)号：US20180013373A1

公开(公告)日：2018-01-11

申请号：US15622797

申请日：2017-06-14

Applicant: Kabushiki Kaisha Yaskawa Denki

Inventor： Mitsujiro SAWAMURA ,  Kunimasa Ando ,  Tatsuaki Wada

IPC: H02P27/08 ,  H02M7/06 ,  H02M3/158 ,  H02M7/5395 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02P29/024 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/158 ,  H02M5/458 ,  H02M7/06 ,  H02M7/5395 ,  H02M2001/0009 ,  H02P27/08 ,  H02P2201/07

Abstract: A motor control system includes a DC-to-DC converter including a semiconductor switch and a reactor that cooperates with the switch to convert input-side DC bus voltage across first and second input-side DC buses into predetermined output-side DC bus voltage across first and second output-side DC buses and to output the output-side voltage, control circuitry that controls duty factor of the switch and determine, based on input-side detection value of the input-side voltage and output-side detection value of the output-side voltage, whether there is failure in the system when the factor is 100 percent and reactor-current detection value of reactor current through the reactor is approximately zero, a smoothing capacitor connected to the output-side buses and disposed between the output-side buses, and an inverter that is connected to the capacitor through the output-side buses, converts DC power from the output-side buses into AC power and supplies the power to a motor.

公开(公告)号：US20170294862A1

公开(公告)日：2017-10-12

申请号：US15484574

申请日：2017-04-11

Applicant: DENSO CORPORATION

Inventor： Hidekazu TAKAHASHI

IPC: H02P27/08 ,  H02P21/22

CPC classification number: H02P27/08 ,  B60L11/08 ,  H02M1/44 ,  H02M3/1588 ,  H02M7/53871 ,  H02M2001/007 ,  H02M2007/53876 ,  H02P21/22 ,  H02P27/06 ,  H02P2201/07 ,  Y02B70/1466

Abstract: In a control apparatus for an AC motor, a voltage waveform specifying unit of an inverter control unit specifies a voltage waveform for operating the inverter, based on a voltage vector calculated by a voltage command calculation unit. A spectrum amplitude extraction unit acquires values of bus current of the inverter and extracts the spectrum amplitude of the specific frequency that corresponds to the LC resonance frequency of the converter. A boost/non-boost state judgement unit of a converter control unit determines whether the state required by the converter in the next control cycle is the boost state or the non-boost state. When the spectrum amplitude of the specific frequency, correlated with the voltage waveform, is higher than the judgement threshold value and the converter is in the non-boost state, a voltage command value alteration unit changes the voltage command reference value such that the converter transitions to the boost state.

公开(公告)号：US20170244336A1

公开(公告)日：2017-08-24

申请号：US15441133

申请日：2017-02-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Ryota KITAMOTO

IPC: H02M7/539 ,  H01M8/04537 ,  B60L11/18 ,  H01M8/04828 ,  B60R16/033 ,  H02P27/06

CPC classification number: H02M7/539 ,  B60L11/18 ,  B60R16/033 ,  H01M8/04641 ,  H01M8/04649 ,  H01M8/04828 ,  H01M2250/20 ,  H02M3/1584 ,  H02M3/33507 ,  H02M7/1557 ,  H02P27/06 ,  H02P2201/07 ,  Y02T90/32

Abstract: A power supply system includes a power supply, a converter, and a processor. The converter converts voltage of the electric power supplied from the power supply. The processor is configured to generate a first control signal to control the converter to output a target voltage or a target current via a feedback control based on the first control signal. The processor is configured to generate a second control signal to detect a state of the power supply. The processor is configured to combine the first control signal and the second control signal to control the converter.

公开(公告)号：US20170149368A1

公开(公告)日：2017-05-25

申请号：US15424008

申请日：2017-02-03

Applicant: ARM Limited

Inventor： David Victor PIETROMONACO

IPC: H02P25/092 ,  H02K1/14 ,  H02M3/158 ,  H02K1/24

CPC classification number: H02P25/092 ,  B60L11/005 ,  B60L2220/54 ,  H02K11/22 ,  H02M3/155 ,  H02M3/158 ,  H02M3/1582 ,  H02M3/1584 ,  H02M2001/0064 ,  H02M2003/1552 ,  H02M2003/1586 ,  H02P25/08 ,  H02P2201/07 ,  H02P2201/09 ,  Y02T10/641 ,  Y02T10/642

Abstract: Apparatus is provided comprising an electrical motor comprising a rotor and a stator, the rotor comprising a plurality of rotor teeth and the stator comprising a plurality of stator teeth. The apparatus has a driver circuit to drive the electrical motor comprising a boost converter comprising a charge storage element and coupled to a first terminal of a coil winding on at least one of the plurality of stator teeth, and a buck converter comprising the same charge storage element and coupled to the same first terminal of the coil winding on the at least one of the plurality of stator teeth. An inductive element of the boost converter and the buck converter is provided by the coil winding of the at least one of the plurality of stator teeth, and the charge storage element is referenced to a supply node for coupling the second terminal of the coil winding to an electrical supply.

公开(公告)号：US20170088277A1

公开(公告)日：2017-03-30

申请号：US15163499

申请日：2016-05-24

Applicant: Reebeez, Inc.

Inventor： Ankita Ghoshal

IPC: B64D27/24 ,  H01L35/04 ,  H02P31/00 ,  H01L35/22 ,  H01L35/34 ,  B64C39/02 ,  H01L35/32

CPC classification number: B64D27/24 ,  B60L8/003 ,  B64C39/024 ,  B64C2201/04 ,  B64C2201/042 ,  B64D2027/026 ,  H01L35/00 ,  H01L35/04 ,  H01L35/12 ,  H01L35/22 ,  H01L35/28 ,  H01L35/30 ,  H01L35/32 ,  H01L35/34 ,  H02P31/00 ,  H02P2201/07 ,  H02S10/30 ,  Y02T10/7083 ,  Y02T50/64

Abstract: This disclosure generally relates to a hybrid solid-state propulsion system for aerial vehicles which includes a thermoelectric generator. The thermoelectric generator includes a first heat exchanger disposed within an exhaust duct of an unmanned aerial vehicle. The thermoelectric generator further includes a first ceramic layer disposed on the first heat exchanger and a first and second metal tab bonded to the first ceramic layer. The thermoelectric generator further includes a second metal tab bonded to a second ceramic layer. At least one N-type thermoelectric leg is disposed between the first metal tab bonded to the first ceramic layer and the metal tab bonded to the second ceramic layer. Further, at least one P-type thermoelectric leg is disposed between the second metal tab bonded to the first ceramic layer and the metal tab bonded to the second ceramic layer.

公开(公告)号：US20160294316A1

公开(公告)日：2016-10-06

申请号：US14877943

申请日：2015-10-08

Applicant: RHYMEBUS CORPORATION

Inventor： Ming-Shi HUANG ,  Chang-Ming WANG ,  Kuan-Cheng CHEN ,  Ming-Chang CHOU

IPC: H02P27/08

CPC classification number: H02P27/08 ,  H02M1/4216 ,  H02M3/1582 ,  H02P23/26 ,  H02P29/50 ,  H02P2201/07 ,  H02P2201/15 ,  Y02B70/126 ,  Y02P80/116

Abstract: AC motor driving system and driving method thereof are provided. The driving system and method are capable of increasing power factor, adjusting waveform of the DC ripple voltage for increasing driving efficiency. The driving system is basically constructed by connecting three circuits. The first circuit is a three-phase full wave rectifying circuit and is used to transfer commercial electricity to a first DC voltage. Then, the second circuit is used to transfer the first DC voltage to a second DC voltage that ripples voltage thereof having a semi-sinusoidal waveform. The third circuit is an AC driving circuit, and receives the second AC voltage for driving the AC motor. Thereby, the driving efficiency can be increased. The capacitance used in the present disclosure has low capacitance value, thus the power factor can be increased, and usage time of the AC motor driving apparatus can also be increased.

Abstract translation: 提供交流电动机驱动系统及其驱动方法。 驱动系统和方法能够提高功率因数，调整直流纹波电压的波形，提高驱动效率。 驱动系统基本上通过连接三个电路构成。 第一电路是三相全波整流电路，用于将商用电力转移到第一直流电压。 然后，第二电路用于将第一直流电压传送到具有半正弦波形的波纹电压的第二直流电压。 第三电路是AC驱动电路，并且接收用于驱动AC电动机的第二AC电压。 由此，能够提高驱动效率。 本公开中使用的电容器具有低电容值，因此可以提高功率因数，并且还可以增加AC电动机驱动装置的使用时间。

公开(公告)号：US09376214B2

公开(公告)日：2016-06-28

申请号：US14867152

申请日：2015-09-28

Applicant: Reebeez, Inc.

Inventor： Ankita Ghoshal

IPC: H01L35/00 ,  H01L35/12 ,  H01L35/28 ,  H01L35/30 ,  H01L35/32 ,  H02S10/30 ,  B64D27/24 ,  B64C39/02 ,  H02P31/00

CPC classification number: B64D27/24 ,  B60L8/003 ,  B64C39/024 ,  B64C2201/04 ,  B64C2201/042 ,  B64D2027/026 ,  H01L35/00 ,  H01L35/04 ,  H01L35/12 ,  H01L35/22 ,  H01L35/28 ,  H01L35/30 ,  H01L35/32 ,  H01L35/34 ,  H02P31/00 ,  H02P2201/07 ,  H02S10/30 ,  Y02T10/7083 ,  Y02T50/64

Abstract: This disclosure generally relates to a hybrid solid-state propulsion system for aerial vehicles. The hybrid propulsion system includes a combustor, a thermophotovoltaic generator, and a thermoelectric generator. The combustor burns a chemical based fuel to produce radiation and heat that are converted into electricity used to power the aerial vehicle. The thermophotovoltaic generator is positioned to receive radiation and remnant heat generated by flames in the combustor while the thermoelectric generator receives heat from exhausted flue gases from the combustor.

Abstract translation: 本公开一般涉及用于空中飞行器的混合固态推进系统。 混合推进系统包括燃烧器，热光伏发电机和热电发电机。 燃烧器燃烧基于化学物质的燃料以产生被转换成用于为飞行器运行的电力的辐射和热量。 热光电发生器被定位成接收由燃烧器中的火焰产生的辐射和残余热，同时热电发电机从来自燃烧器的排出的废气中接收热量。

公开(公告)号：US09281774B2

公开(公告)日：2016-03-08

申请号：US14343910

申请日：2012-09-05

Applicant: Kenji Yamada ,  Yasuhiro Nakai

Inventor： Kenji Yamada ,  Yasuhiro Nakai

IPC: H02P1/46 ,  H02P27/08 ,  B60L15/02 ,  H02P27/06 ,  H02P21/00

CPC classification number: H02P27/08 ,  B60L15/02 ,  H02P21/0089 ,  H02P27/06 ,  H02P2201/07 ,  H02P2201/09 ,  Y02T10/643 ,  Y02T10/644 ,  Y02T10/645

Abstract: A motor control system includes: a power supply; a converter; an inverter; an alternating-current motor; and a control unit that drives the motor in any one of sinusoidal PWM control, overmodulation control and rectangular wave control through operation control of the converter and the inverter. The control unit starts step-up operation of the converter when a current vector of motor current of the motor on a d-q coordinate plane becomes a current phase corresponding to motor torque, at which a system loss is equal between before and after starting the step-up operation, while the control unit supplies the direct-current voltage, supplied from the power supply, to the inverter without stepping up the direct-current voltage by the converter and performs the rectangular wave control of the motor in a state where the current phase is an optimal current phase.

Abstract translation: 电机控制系统包括：电源; 转换器 逆变器 交流电动机; 以及通过转换器和逆变器的操作控制，以正弦PWM控制，过调制控制和矩形波控制中的任一种驱动电动机的控制单元。 当电动机在dq坐标平面上的电动机电流的当前矢量变为与电动机转矩相对应的电流相位时，控制单元开始升压运行，在电动机转矩之间，在步进电动机起动之前和之后系统损耗相等， 同时控制单元将从电源提供的直流电压提供给逆变器，而不会由转换器提高直流电压，并且在当前阶段的状态下执行电动机的矩形波控制 是最佳的电流相位。

公开(公告)号：US09162638B2

公开(公告)日：2015-10-20

申请号：US13382205

申请日：2010-04-12

Applicant: Masaya Inoue ,  Takahiro Urakabe ,  Takuto Yano ,  Hideki Sugita ,  Atsutoshi Takada

Inventor： Masaya Inoue ,  Takahiro Urakabe ,  Takuto Yano ,  Hideki Sugita ,  Atsutoshi Takada

IPC: B60L1/00 ,  B60L3/00 ,  B60R16/033 ,  F02N11/08 ,  H02J1/10 ,  H02J7/34 ,  H02P9/30 ,  H02P9/48 ,  H02M3/158 ,  H02P101/45

CPC classification number: B60R16/033 ,  F02N11/08 ,  F02N11/0866 ,  F02N2011/0885 ,  F02N2011/0888 ,  H02J1/102 ,  H02J7/345 ,  H02M3/1582 ,  H02P9/305 ,  H02P9/48 ,  H02P2101/45 ,  H02P2201/07

Abstract: The main electric power source is connected to a lower-voltage side of a DC/DC converter by a first switch, and an electrical double-layer capacitor and a regulator circuit is connected to a higher-voltage side of the DC/DC converter. In addition, permanent magnets are disposed on a rotor so as to generate a magnetic field that is in a reverse direction to excitation by a field coil inside a claw-shaped magnetic pole portion of the rotor. A power supply control circuit controls opening and closing of the first switch so as to be in an open state when the engine is at rest, and so as to be set to a connected state after the regulator circuit is operated to make the alternator generate electric power to precharge the electrical double-layer capacitor after the engine is started.

Abstract translation: 主电源通过第一开关连接到DC / DC转换器的低压侧，并且双电层电容器和调节器电路连接到DC / DC转换器的高压侧。 另外，在转子上设置永久磁铁，以产生与转子的爪状磁极部内的励磁线圈的激励相反的方向的磁场。 电源控制电路控制第一开关的打开和关闭，以便在发动机静止时处于打开状态，并且在调节器电路被操作之后被设置为连接状态，以使交流发电机 在发动机启动后对双电层电容器进行预充电的功率。

公开(公告)号：US20140217941A1

公开(公告)日：2014-08-07

申请号：US14343910

申请日：2012-09-05

Applicant: Kenji Yamada ,  Yasuhiro Nakai

Inventor： Kenji Yamada ,  Yasuhiro Nakai

IPC: H02P27/08

CPC classification number: H02P27/08 ,  B60L15/02 ,  H02P21/0089 ,  H02P27/06 ,  H02P2201/07 ,  H02P2201/09 ,  Y02T10/643 ,  Y02T10/644 ,  Y02T10/645

Abstract: A motor control system includes: a power supply; a converter; an inverter; an alternating-current motor; and a control unit that drives the motor in any one of sinusoidal PWM control, overmodulation control and rectangular wave control through operation control of the converter and the inverter. The control unit starts step-up operation of the converter when a current vector of motor current of the motor on a d-q coordinate plane becomes a current phase corresponding to motor torque, at which a system loss is equal between before and after starting the step-up operation, while the control unit supplies the direct-current voltage, supplied from the power supply, to the inverter without stepping up the direct-current voltage by the converter and performs the rectangular wave control of the motor in a state where the current phase is an optimal current phase.

Abstract translation: 电机控制系统包括：电源; 转换器 逆变器 交流电动机; 以及通过转换器和逆变器的操作控制，以正弦PWM控制，过调制控制和矩形波控制中的任一种驱动电动机的控制单元。 当电动机在dq坐标平面上的电动机电流的当前矢量变为与电动机转矩相对应的电流相位时，控制单元开始升压运行，在电动机转矩之间，在步进电动机起动之前和之后系统损耗相等， 同时控制单元将从电源提供的直流电压提供给逆变器，而不会由转换器提高直流电压，并且在当前阶段的状态下执行电动机的矩形波控制 是最佳的电流相位。