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11.发明授权公开(公告)号：US12034292B2
公开(公告)日：2024-07-09
申请号：US18132062
申请日：2023-04-07
Applicant: Eaton Intelligent Power Limited
Inventor： Huaqiang Li , Seth O'Brien , Thomas M. Ruchti
CPC classification number: H02H7/0833 , H02H3/202 , H02H7/1216 , H02H7/125 , H02M1/08 , H02M1/32 , H02M5/4585 , H02M7/2173
Abstract: A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.
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公开(公告)号：US11967891B2
公开(公告)日：2024-04-23
申请号：US17672432
申请日：2022-02-15
Applicant: Eaton Intelligent Power Limited
Inventor： Huaqiang Li
CPC classification number: H02M1/12 , H02J3/01 , H02M1/0009 , H02M5/458 , H02P27/08
Abstract: A bi-directional power converter includes: a plurality of input nodes, each input node configured to electrically connect to one phase of a multi-phase AC electrical power distribution network; and an electrical network configured to convert alternating current (AC) to direct current (DC) and to convert DC current to AC current, the electrical network including a plurality of electronic switches. The bi-directional power converter also includes a control system configured to: estimate harmonic voltage content at three intermediate nodes in the bi-directional power converter based on a measured electrical quantity; and control the electronic switches to compensate for the estimated harmonic voltage content.
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公开(公告)号：US20230019005A1
公开(公告)日：2023-01-19
申请号：US17887861
申请日：2022-08-15
Applicant: Eaton Intelligent Power Limited
Inventor： Huaqiang Li
Abstract: An electrical apparatus configured to electrically connect to a multi-phase alternating current (AC) electrical power distribution network includes: an input electrical network including: a plurality of input nodes, each configured to electrically connect to one phase of the multi-phase AC electrical power distribution network; at least one non-linear electronic component electrically connected to the input electrical network; an impedance network electrically connected between the input electrical network and ground; and a control system configured to: access a voltage signal that represents a voltage over time at the input electrical network; determine a frequency content of the voltage signal; determine a property of the frequency content; and determine whether an input current performance condition exists in the electrical apparatus based the property of the frequency content.
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公开(公告)号：US11444562B2
公开(公告)日：2022-09-13
申请号：US16801655
申请日：2020-02-26
Applicant: Eaton Intelligent Power Limited
Inventor： Yaojin Mo , Huaqiang Li , Jimmy Qi , Tony Zhao , Hao Cai
Abstract: In one aspect, a system for determining an initial angular position of a rotor of a synchronous machine includes a motor driver module configured to provide a motor driver voltage signal to the synchronous machine, the motor driver voltage signal being sufficient to induce an electrical current in the synchronous machine; and a rotor position determination module configured to receive an indication of the current generated in the machine and to determine the initial position of the rotor based on the indication of the current generated in the machine. The motor driver voltage signal includes at least a first portion, a second portion, and a third portion, the first portion has a first non-zero voltage during a first temporal duration, the second portion has a second non-zero voltage during a second temporal duration, and the third portion has a substantially zero voltage during a third temporal duration, the first portion has a first polarity and the second portion has a second polarity that is opposite to the first polarity, and the first temporal duration and the second temporal duration are different.
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公开(公告)号：US11177648B2
公开(公告)日：2021-11-16
申请号：US15854129
申请日：2017-12-26
Applicant: Eaton Intelligent Power Limited
Inventor： Huaqiang Li , Joseph Paul Uphaus
IPC: H02H7/122 , H02M7/5387 , H02M5/458 , H02M1/32 , H02P7/29 , H02M7/00 , H02M7/493 , H02P27/04 , H02J9/06 , H02P1/02
Abstract: A compact motor control system for selectively controlling power from a power source to a load includes a motor switching assembly having a solid state contactor with a plurality of solid state switches. The motor switching assembly also includes at least one direct current (DC) link coupled to the solid state contactor and redundant first and second inverters coupled to the at least one DC link. The motor switching assembly further includes a first relay coupled between the solid state contactor and an input of the inverter and a second relay coupled between the solid state contactor and an input of the second inverter. In addition, the motor control system includes a control system programmed to control the motor switching assembly to selectively supply power to the load from the power source.
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Patent Agency Ranking
公开(公告)号：US20210083614A1
公开(公告)日：2021-03-18
申请号：US17004410
申请日：2020-08-27
Applicant: Eaton Intelligent Power Limited
Inventor： Adam Krug , Huaqiang Li
Abstract: A motor driver apparatus includes: a converter including a first electrical network configured to convert AC electrical power into DC electrical power, the first electrical network including at least one electronic element that includes a wide bandgap semiconductor material; and an inverter electrically connected to the converter, the inverter including a second electrical network configured to generate an AC motor power signal from the DC electrical power, the second electrical network includes a plurality of electronic elements that include a semiconductor material that is not a wide bandgap semiconductor material.
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公开(公告)号：US20210058015A1
公开(公告)日：2021-02-25
申请号：US16985606
申请日：2020-08-05
Applicant: Eaton Intelligent Power Limited
Inventor： Jin Li , Huaqiang Li
IPC: H02P5/50
Abstract: A motor and zone controller apparatus includes: a first motor drive; a second motor drive; and a switching apparatus. The switching apparatus includes: a first switching network having at least a first state and a second state, the first switching network connects the first motor drive to a first motor when in the first state, and the first switching network connects the first motor drive to a second motor when in the second state; and a second switching network having at least a first state and a second state, the second switching network connects the second motor drive to the first motor when in the first state, and the second switching network connects the second motor drive to the second motor when in the second state.
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公开(公告)号：US12113458B2
公开(公告)日：2024-10-08
申请号：US17313322
申请日：2021-05-06
Applicant: Eaton Intelligent Power Limited
Inventor： Huaqiang Li , Xiaoling Li , Belly Lei
Abstract: A system includes: a pre-charge circuit configured to produce direct current (DC) electrical power; a common DC bus; and a plurality of inverters, each inverter including: a local DC bus; a capacitor network connected to the local DC bus; an electrical network connected to the local DC bus, the electrical network configured to generate an alternating current (AC) drive signal; and a plurality of switching assemblies, each switching assembly being associated with one of the inverters, and each switching assembly configured to control whether the local DC bus and the capacitor network of the associated inverter are electrically connected to the common DC bus or to the pre-charge circuit.
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公开(公告)号：US12021444B2
公开(公告)日：2024-06-25
申请号：US17501096
申请日：2021-10-14
Applicant: Eaton Intelligent Power Limited
Inventor： Huaqiang Li , Joseph Paul Uphaus
IPC: H02M1/32 , H02H7/122 , H02J9/06 , H02M1/00 , H02M5/458 , H02M7/00 , H02M7/493 , H02M7/5387 , H02P1/02 , H02P7/29 , H02P27/04
CPC classification number: H02M1/32 , H02H7/1225 , H02J9/06 , H02M5/4585 , H02M7/003 , H02M7/493 , H02M7/53871 , H02P1/029 , H02P7/2913 , H02P27/04 , H02M1/0085 , H02M1/325 , H02M5/458
Abstract: A compact motor control system for selectively controlling power from a power source to a load includes a motor switching assembly having a solid state contactor with a plurality of solid state switches. The motor switching assembly also includes at least one direct current (DC) link coupled to the solid state contactor and redundant first and second inverters coupled to the at least one DC link. The motor switching assembly further includes a first relay coupled between the solid state contactor and an input of the inverter and a second relay coupled between the solid state contactor and an input of the second inverter. In addition, the motor control system includes a control system programmed to control the motor switching assembly to selectively supply power to the load from the power source.
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20.发明授权公开(公告)号：US11631973B2
公开(公告)日：2023-04-18
申请号：US17484755
申请日：2021-09-24
Applicant: Eaton Intelligent Power Limited
Inventor： Huaqiang Li , Seth O'Brien , Thomas M. Ruchti
Abstract: A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.
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