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公开(公告)号：US20220393610A1
公开(公告)日：2022-12-08
申请号：US17867637
申请日：2022-07-18
Applicant: Samsung Display Co., Ltd.
Inventor： Wonwoo Choi , Wooyong Sung , Sooyoun Kim , Junghan Seo , Seoyeon Lee , Hyoungsub Lee , Moonwon Chang , Seunggun Chae
Abstract: A display panel including: a substrate including an opening area and a display area surrounding the opening area; a plurality of display elements, each including a pixel electrode, an emission layer, and an opposite electrode, the plurality of display elements being located in the display area; a thin-film encapsulation layer covering the plurality of display elements and including an organic encapsulation layer and an inorganic encapsulation layer; a plurality of grooves located between the opening area and the display area, the plurality of grooves being concave in a depth direction of the substrate and having an undercut structure; and a partition wall located between neighboring grooves among the plurality of grooves.
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公开(公告)号：US10859064B2
公开(公告)日：2020-12-08
申请号：US16474501
申请日：2017-11-29
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Ciprian Biris , Duy Duc Doan , John Godsk Nielsen
Abstract: A power conversion system for a wind turbine generator, comprising a machine-side converter having an AC voltage input from a generator and a DC voltage output to a DC link, wherein the machine-side converter is a modular multi-level converter comprising one or more converter legs corresponding to a respective one or more electrical phases of the generator, each of the converter legs comprising a plurality of converter cells, the system further comprising: a converter control module which provides the machine-side converter with a gate signal, and an electrical frequency estimation module configured to estimate the mean electrical frequency of the generator; wherein the gate signal has at least one mean switching frequency corresponding to at least one electrical phase of the generator; wherein the converter control module is configured to modulate the mean switching frequency of the gate signal in dependence on the mean electrical frequency of the generator.
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公开(公告)号：US08847534B2
公开(公告)日：2014-09-30
申请号：US13580446
申请日：2010-03-31
Applicant: Dongsheng Li , Yasuo Notohara
Inventor： Dongsheng Li , Yasuo Notohara
CPC classification number: H02M1/4216 , Y02B70/126
Abstract: A converter includes three AC reactors, a three-phase diode bridge, a plurality of smoothing capacitors connected in series between a DC output side of the three-phase diode bridge and a DC load, two flywheel diodes connected to positive and negative terminals on the DC side of the three-phase diode bridge, respectively. A reactor is inserted between the midpoint of the two flywheel diodes and the midpoint of the smoothing capacitors, three both-way energizing switches are arranged between the AC side of the three-phase diode bridge and the midpoint of the two flywheel diodes. The three both-way energizing switches are controlled to reduce higher harmonic components of power source current, and by the reactor interposed between the midpoint of the two flywheel diodes and the midpoint of the smoothing capacitors, reverse recovery currents of the three-phase diode bridge during turn-on of the three both-way energizing switches are suppressed.
Abstract translation: A转换器包括三个AC电抗器，三相二极管电桥，串联连接在三相二极管电桥的直流输出侧和直流负载之间的多个平滑电容器，两个连接到正极和负极端子的续流二极管 直流侧三相二极管桥。 在两个飞轮二极管的中点和平滑电容器的中点之间插入电抗器，在三相二极管桥的AC侧和两个飞轮二极管的中点之间设置三个双向通电开关。 控制三个双向通电开关以减少电源电流的高次谐波分量，并且通过插在两个飞轮二极管的中点和平滑电容器的中点之间的电抗器，三相二极管桥的反向恢复电流 在三通双向通电开关的导通期间被抑制。
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公开(公告)号：US20140285162A1
公开(公告)日：2014-09-25
申请号：US14217702
申请日：2014-03-18
Applicant: ENGEL AUSTRIA GmbH
Inventor： Harald FRAUENEDER , Gerhard DIMMLER
Abstract: Power supply device for a moulding machine with an intermediate circuit, which can be connected with at least one drive of the moulding machine and is suitable for supplying the at least one drive with electrical energy; a supply module connected to the intermediate circuit; an energy storage device connected to the intermediate circuit, and a closed loop control device for closed loop controlling an energy content of the energy storage device, wherein the energy storage device can be closed loop controlled by means of the closed loop control device so that the energy content of the energy storage device does not go outside a range, in which a power input and/or a power output of the energy storage device is essentially constant.
Abstract translation: 具有中间电路的成型机的电源装置，其可以与成型机的至少一个驱动器连接并且适于向至少一个驱动器提供电能; 连接到所述中间电路的供电模块; 连接到中间电路的能量存储装置和用于闭环控制能量存储装置的能量含量的闭环控制装置，其中能量存储装置可以通过闭环控制装置闭环控制，使得 能量存储装置的能量含量不超出能量存储装置的功率输入和/或功率输出基本上恒定的范围。
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公开(公告)号：US07741795B2
公开(公告)日：2010-06-22
申请号：US11616789
申请日：2006-12-27
Applicant: Claude Michael Kalev
Inventor： Claude Michael Kalev
Abstract: The present invention provides an electro-mechanical energy exchange system with a variable speed synchronous reluctance motor-generator having an all-metal rotor. A bi-directional AC-to-DC electric power converter interconnects the motor-generator with a DC bus. First and second hybrid controllers provide current regulation for the motor-generator and voltage regulation for the DC bus. Use of both feedback and feedforward control elements provides a controller particularly suited for operating high speed devices.
Abstract translation: 本发明提供了具有全金属转子的具有变速同步磁阻电动发电机的机电能量交换系统。 双向交流 - 直流电力转换器将电动发电机与直流母线相连。 第一和第二混合控制器为直流母线的电动发电机和电压调节器提供电流调节。 反馈和前馈控制元件的使用提供了一种特别适用于操作高速设备的控制器。
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Patent Agency Ranking
6.发明申请Device for Controlling an Electromechanical Power Converter, Particularly of an Electric Motor 有权用于控制电机功率转换器的装置，特别是电动机公开(公告)号：US20080158923A1
公开(公告)日：2008-07-03
申请号：US11910479
申请日：2006-01-26
Applicant: Steffen Hopf , Manfred Ringlstetter
Inventor： Steffen Hopf , Manfred Ringlstetter
IPC: H02P11/04
CPC classification number: H02P3/12
Abstract: In a device and a method for controlling an electromechanical power converter (10), particularly of an electric motor and/or generator, comparatively cost-effective switches (14, 18) can be used without drastically decreasing the serviceable life of the entire system. A number of controllable switches (14, 18) can be used for controlling the converter (10), and dividing up a switching load, which is caused when connecting e.g. short-circuiting converter connections (21, 22), to a number of switches (14, 18) over the serviceable life.
Abstract translation: 在用于控制特别是电动机和/或发电机的机电功率转换器（10）的装置和方法中，可以使用相对成本有效的开关（14,18），而不会显着降低整个系统的使用寿命。 可以使用多个可控开关（14,18）来控制转换器（10），并且划分开关负载，这是在连接例如电源时引起的。 短路转换器连接（21,22）连接到多个可用寿命的开关（14,18）。
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公开(公告)号：US11855559B2
公开(公告)日：2023-12-26
申请号：US17520872
申请日：2021-11-08
Applicant: Hamilton Sundstrand Corporation
Inventor： Dhaval Patel , Andreas C. Koenig
Abstract: A power supply system includes a first saturable reactor electrically connected to a first AC phase input, to a second AC phase input, and to a third AC phase input. The first saturable reactor is electrically connected to a first DC output. A second saturable reactor is electrically connected in parallel with the first saturable reactor to the first AC phase input, to the second AC phase input, and to the third AC phase input. The second saturable reactor is electrically connected to a second DC output. A reactor controller can be operatively connected to the first saturable reactor and to the second saturable reactor to regulate DC output voltage to the first and second DC outputs.
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公开(公告)号：US20220190710A1
公开(公告)日：2022-06-16
申请号：US17685456
申请日：2022-03-03
Applicant: DENSO CORPORATION
Inventor： Kousuke KONDOU , Yasuaki AOKI
Abstract: A rotating electrical machine control device is applied to a system including a power conversion circuit electrically connected to a rotating electrical machine, and a capacitor electrically connected to an input side of the power conversion circuit. The rotating electrical machine control device includes a determination unit that determines a switching mode of the power conversion circuit in which a ripple current flowing through the capacitor is reflected, based on an operating area of the rotating electrical machine, and an operation unit that operates the power conversion circuit such that the switching mode of the power conversion circuit is the switching mode determined by the determination unit.
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公开(公告)号：US10994596B2
公开(公告)日：2021-05-04
申请号：US16707275
申请日：2019-12-09
Inventor： Junichi Yukawa
Abstract: A vehicle driving device includes a permanent magnet motor, an inverter that drives the permanent magnet motor, a DC-to-DC converter that is a buck-boost converter and connected to the inverter, and a driving battery that is connected to the DC-to-DC converter. The DC-to-DC converter outputs, to the inverter, (i) a voltage inputted to the DC-to-DC converter of a positive electrode of the driving battery as-is and (ii) a voltage inputted to the DC-to-DC converter of a negative electrode of the driving battery after increasing the voltage in a negative direction.
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公开(公告)号：US20200262288A1
公开(公告)日：2020-08-20
申请号：US16707275
申请日：2019-12-09
Inventor： Junichi Yukawa
Abstract: A vehicle driving device includes a permanent magnet motor, an inverter that drives the permanent magnet motor, a DC-to-DC converter that is a buck-boost converter and connected to the inverter, and a driving battery that is connected to the DC-to-DC converter. The DC-to-DC converter outputs, to the inverter, (i) a voltage inputted to the DC-to-DC converter of a positive electrode of the driving battery as-is and (ii) a voltage inputted to the DC-to-DC converter of a negative electrode of the driving battery after increasing the voltage in a negative direction.
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