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公开(公告)号：US20240178762A1
公开(公告)日：2024-05-30
申请号：US18514098
申请日：2023-11-20
申请人： THERMO KING LLC
摘要： An electrical system and method of operating the same is provided. The electrical system includes a passive filter, an active power converter, a first AC connecting bus extending between the active power converter and the passive filter, a second AC connecting bus extending between the passive filter and an AC network, a DC connecting bus extending between the active power converter and a DC network, and a monitoring arrangement. The method includes operating in a first mode and subsequently operating in a second mode. The first mode includes determining a plurality of parameters of an operating AC voltage of the AC network based on a monitored AC voltage on the first AC connecting bus. The second mode includes controlling the active power converter to convert a DC voltage received from the DC network into an AC voltage for supply to the AC network via the passive filter.
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公开(公告)号：US20240158946A1
公开(公告)日：2024-05-16
申请号：US18485915
申请日：2023-10-12
发明人： Patrick Chapman , Jaesoo Byoun , Dan Chown , David Okawa , Anton Hunt , Isaac Thomas
摘要： The present disclosure relates to systems, non-transitory computer-readable media, and methods for applying controllable current to portions of an electrodeposition device via a series-in-parallel-out rectifier circuit. In particular, the rectifier circuit includes a front-end stage that includes an alternating current-to-direct current converter circuit to generate one or more direct current signals from an alternating current signal of an input terminal. Additionally, the rectifier circuit includes a back-end stage including a plurality of direct current-to-direct current converter circuits that convert the one or more direct current signals into a plurality of child direct current signals. Furthermore, the plurality of direct current-to-direct current converter circuits of the disclosed series-in-parallel-out rectifier circuit are in physical contact with an anode of the electrodeposition device at a plurality of different positions to apply separate currents to different portions of the anode.
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3.发明公开公开(公告)号：US20240120832A1
公开(公告)日：2024-04-11
申请号：US18263844
申请日：2022-01-31
发明人： Pasquale FORTE , Alessandro POLI
CPC分类号： H02M1/4233 , H02J7/0013 , H02J7/345 , H02M1/12 , H02M7/04
摘要： A power factor correction device includes a power supply side which can be connected to an alternating current source, an output side which can be connected to a direct current load, at least a first power inductor electrically connected in series to a first terminal of the power supply side, and a rectifier operatively interposed between the power supply side and the output side. The rectifier includes a diode bridge configured to convert the alternating current from the source into a direct current towards the load, and one or more switches which can be selectively switched between an open configuration and a closed configuration in order to switch the rectifier between a first configuration, in which it interrupts the current flow towards the output side and charges the first inductor, and a second configuration, in which it allows the transfer of current to the load and discharges the first inductor. A second power inductor is electrically connected in series to a second terminal of the power supply side.
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公开(公告)号：US20240030802A1
公开(公告)日：2024-01-25
申请号：US18325137
申请日：2023-05-30
CPC分类号： H02M1/0067 , H02M7/04
摘要： The present disclosure discloses a power conversion system and a communication method for transmitting common mode information in the power conversion system. The communication method comprises the following steps: (a) providing at least two power conversion cells; (b) generating, by each of the power conversion cells, an AC harmonic according to a first electrical signal at the first terminal of the power conversion cell, wherein an amplitude of each AC harmonic represents first information of the power conversion cell, and all the AC harmonics are at the same frequency; and (c) injecting the AC harmonic generated by the corresponding power conversion cells into the first terminal of the corresponding power conversion cell and applying a closed-loop suppression to the AC harmonic generated by the corresponding power conversion cell, and controlling the resonance control unit to output a second electrical signal related to the first information.
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公开(公告)号：US11811310B2
公开(公告)日：2023-11-07
申请号：US17447069
申请日：2021-09-08
CPC分类号： H02M3/04 , H02M7/04 , H02J7/0013
摘要： Embodiments of the present disclosure provide a power conversion system and a control method. The power conversion system includes multiple power modules, and each power module includes a first port, a second port, and a third port, where the first port of each power module is connected to an external device, second ports of the power modules are independent of each other and used as independent ports to output power, third ports of the power modules are connected in parallel to form a power bus and power flow of the third port of each power module is bidirectional.
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6.发明授权公开(公告)号：US11784507B2
公开(公告)日：2023-10-10
申请号：US17532180
申请日：2021-11-22
申请人： Cummins Inc.
发明人： Joseph E. Paquette , Martin T. Books , Mahesh Madurai Kumar , Jaroslaw Leonarski , Gary L. Parker , Erik L. Piper
CPC分类号： H02J7/14 , B60R16/033 , H02K7/1004 , H02K7/116 , H02K7/1815 , H02M7/04
摘要： A system for a non-hybrid vehicle is provided. The system includes an electromagnetic device structured to couple to an engine and generate AC electrical power from the engine. The system also includes an AC-to-DC inverter structured to receive and change the AC electrical power to regulated DC electrical power. Additionally, the system includes an electrical path coupled to the AC-to-DC inverter and configured to provide the regulated DC electrical power directly to an electrically-powered accessory at or above 28 volts DC.
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公开(公告)号：US11764662B2
公开(公告)日：2023-09-19
申请号：US16984756
申请日：2020-08-04
发明人： Akshat Jain
CPC分类号： H02M1/08 , H02M1/32 , H03K17/0828 , H05B6/108 , H02M7/04
摘要： A circuit includes a transistor, with a resonant tank coupled between a DC supply node and a first conduction terminal of the transistor. A gate driver generates a gate drive signal for biasing a control terminal of the transistor to cause it to conduct current through the resonant tank. Control circuitry monitors a voltage across the transistor to determine that the transistor is an overvoltage condition if that voltage exceeds a threshold, and monitors a current through the transistor to determine that the transistor is an overcurrent condition if that current exceeds a threshold. If overvoltage is determined, the control circuitry causes the gate driver to pull up the gate drive signal. If overcurrent is determined, the control circuitry causes the gate driver to pull down the gate drive signal. If either overvoltage or overcurrent is present, a pulse width of the gate drive signal is reduced.
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公开(公告)号：US11728680B2
公开(公告)日：2023-08-15
申请号：US16582192
申请日：2019-09-25
发明人： Hiroaki Nakano
CPC分类号： H02J50/12 , G06F1/28 , H02H9/045 , H02J7/00308 , H02M7/04 , H04B5/0037 , H04B5/0075 , H02J50/80 , H04B5/0031
摘要： A power receiving unit of the disclosure includes: a power receiving section that receives power transferred from a power transfer unit in a contactless manner; a protection circuit section that varies a receiving power voltage of the power received by the power receiving section; and a control section that controls an operational state of the protection circuit section to a plurality of statuses on the basis of a plurality of thresholds.
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公开(公告)号：US20230246575A1
公开(公告)日：2023-08-03
申请号：US17928298
申请日：2021-05-07
发明人： Daniel Soto
CPC分类号： H02P9/007 , H02J3/381 , H02M7/04 , H02J2300/28
摘要： A wind turbine electrical power generating system is provided and is configured to supply generated electrical power to a main load. The system includes a wound rotor induction generator including stator windings and a generator rotor with rotor windings. The generator rotor is configured to be mechanically coupled to a wind turbine rotor of the wind turbine to receive rotational mechanical energy. A first converter is electrically coupled to the stator windings such that in operation, AC electrical power generated by the stator windings and provided to the main load passes through the first converter. A second converter is electrically coupled to the rotor windings of the generator rotor, wherein an AC frequency of the generated AC electrical power is at least partially determined by setting or controlling currents in the rotor windings of the generator rotor by the second converter.
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10.发明公开公开(公告)号：US20230216418A1
公开(公告)日：2023-07-06
申请号：US18077692
申请日：2022-12-08
发明人： WUPING LIN , YUNCHAO ZHANG , JIANFENG HUANG , LIEYI FANG
CPC分类号： H02M3/33507 , H02M7/04 , H02M1/08
摘要： Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.
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