-
公开(公告)号：US11101640B1
公开(公告)日：2021-08-24
申请号：US16942039
申请日：2020-07-29
Applicant: ABB Schweiz AG
Inventor： Li Qi , Peter Steimer , Liming Liu , Jiuping Pan
IPC: H02H7/12
Abstract: Systems, methods, techniques and apparatuses of fault protection. One exemplary embodiment is a protection system including a solid-state switching device, a galvanic isolation switching device, and a controller. The solid-state switching device is coupled between a switch arrangement of a power converter and a direct current (DC) link capacitor of the power converter. The galvanic isolation switching device is coupled between the DC link capacitor and a DC network. The controller is structured to determine a fault is occurring within the DC network, open the solid-state switching device in response to determining the fault is occurring, receive a measurement corresponding to an electrical characteristic of a fault current flowing through the galvanic isolation switching device while the solid-state switching device is open, and determine a location of the fault based on the received measurement.
-
公开(公告)号：US10574174B2
公开(公告)日：2020-02-25
申请号：US15859463
申请日：2017-12-30
Applicant: ABB Schweiz AG
Inventor： Alessandro Castagnini , Darren Tremelling , Elio Alberto Perigo , Giulio Secondo , Liming Liu
Abstract: A method for operating an electrical machine having a stator and having a rotor with permanent magnets, includes: running the electrical machine; determining, while performing the running of the electrical machine, whether the permanent magnets have been demagnetized; finding, while running the electrical machine, the q-axis responsive to a determination that the permanent magnets have been demagnetized; firing a current pulse through the stator, while running the electrical machine, when the q-axis reaches a desired position relative to a selected stator phase, wherein the current pulse is constructed to remagnetize the permanent magnets; and continuing to run the electrical machine.
-
公开(公告)号：US20190207550A1
公开(公告)日：2019-07-04
申请号：US15859463
申请日：2017-12-30
Applicant: ABB Schweiz AG
Inventor： Alessandro Castagnini , Darren Tremelling , Elio Alberto Perigo , Giulio Secondo , Liming Liu
Abstract: A method for operating an electrical machine having a stator and having a rotor with permanent magnets, includes: running the electrical machine; determining, while performing the running of the electrical machine, whether the permanent magnets have been demagnetized; finding, while running the electrical machine, the q-axis responsive to a determination that the permanent magnets have been demagnetized; firing a current pulse through the stator, while running the electrical machine, when the q-axis reaches a desired position relative to a selected stator phase, wherein the current pulse is constructed to remagnetize the permanent magnets; and continuing to run the electrical machine.
-
公开(公告)号：US20200287444A1
公开(公告)日：2020-09-10
申请号：US16297039
申请日：2019-03-08
Applicant: ABB Schweiz AG
Inventor： Zach Pan , Liming Liu , Colin Tschida
Abstract: A combined electric motor and motor drive are provided. The electric motor and motor drive are attached together to form a co-packaged unit. In the co-packaged electric motor and motor drive, both the motor drive and the electric motor generate heat. A thermoelectric cooler is provided that may transfer heat away from the motor drive. The thermoelectric cooler may also insulate the motor drive from the heat generated by the motor.
-
公开(公告)号：US09933805B2
公开(公告)日：2018-04-03
申请号：US15194058
申请日：2016-06-27
Applicant: ABB Schweiz AG
Inventor： Liming Liu , Jing Xu
CPC classification number: G05F3/08 , H02M1/08 , H02M3/06 , H02M3/156 , H02M7/533 , H02M7/537 , H02M2001/007 , H02M2007/4815
Abstract: Unique systems, methods, techniques and apparatuses of a power converter are disclosed. One exemplary embodiment is an electrical power conversion system comprising a first converter stage, a second converter stage, a third converter stage, and a control system. The first converter stage is operable to boost DC power received from a DC power source. The second converter stage is operable to boost DC power received from the first converter stage. The third converter stage includes an inverter. The control system is structured to receive as input voltage (Vpv) and current (Ipv) output by the DC power source, voltage (Vdc) output by the second controller stage, and voltage (Vac) and a current (Iac) which are output by the third stage to an AC electrical power system, provide a control command for the first converter stage, and process the information of Vdc, Vac and Iac to provide control commands for the inverter switches.
-
Patent Agency Ranking
公开(公告)号：US20240154524A1
公开(公告)日：2024-05-09
申请号：US18549013
申请日：2021-03-05
Applicant: ABB Schweiz AG
Inventor： Liming Liu , Shanghua Li , Zach Z. Pan , Yu Zhang
CPC classification number: H02M1/44 , H02M1/123 , H02M1/4208
Abstract: A robotic device for reducing electromagnetic interference (EMI) noise and suppress leakage current is provided. The robotic device comprises a controller configured to control phase-shift switching of a plurality of axes to reduce electromagnetic interference (EMI) noise and suppress leakage current, an electrical circuit, and a plurality of loads coupled to a plurality of motors of the plurality of axes. The electrical circuit comprises a power source and rectifier; an EMI filter configured to further reduce the EMI noise and suppress the leakage current from the plurality of axes; and the plurality of axes comprising a plurality of drives and a plurality of motors that are configured to operate the plurality of loads.
-
公开(公告)号：US20230405806A1
公开(公告)日：2023-12-21
申请号：US18251318
申请日：2021-02-04
Applicant: ABB Schweiz AG
Inventor： Shanghua Li , Liming Liu , Damian Kowal , Tomas Botold , Bin Liu , Zach Pan , Rajib Mikail , Yang Gao
IPC: B25J9/10
CPC classification number: B25J9/104
Abstract: A self-contained actuator for use in a robot manipulator includes: a housing, in which are arranged in axial sequence a gear, a motor, a brake, a sensor and a motor drive. The motor drive includes wide-bandgap/WBG electronics and is arranged in heat-dissipating relationship with a free end of the housing. Through the motor and some further components, there is provided a central channel for receiving a cable connected to at least one further actuator of the robot manipulator. The channel may be angled or straight. In embodiments where the motor drive is hollow, the central channel extends between the axial ends of the actuator. There is further provided an all-in-one industrial robot comprising a robot manipulator, in which one or more self-contained actuators with the above characteristics are installed and a robot controller is physically integrated.
-
公开(公告)号：US20210409016A1
公开(公告)日：2021-12-30
申请号：US16912775
申请日：2020-06-26
Applicant: ABB Schweiz AG
Inventor： Liming Liu , Jing Xu , Zhiguo Pan
IPC: H03K17/082 , H03K5/24 , H03K3/037
Abstract: Systems, methods, techniques and apparatuses of power switch protection are disclosed. One exemplary embodiment is a protection system for a power switch comprising a resistor and a detection circuit. The resistor is coupled in series with a decoupling capacitor. The detection circuit is structured to receive a voltage of the resistor, determine a short circuit is occurring based on the received electrical characteristic, and transmit a fault trigger signal in response to determining the short circuit is occurring.
-
公开(公告)号：US20190393161A1
公开(公告)日：2019-12-26
申请号：US16018933
申请日：2018-06-26
Applicant: ABB Schweiz AG
Inventor： Sheng Zhong , Jing Xu , Liming Liu , Elio Alberto Perigo
IPC: H01L23/552 , H01L23/498 , H05K9/00 , H01L21/3205 , H01L23/538 , H05K1/18 , H05K1/02
Abstract: A multi-layered conductor comprising one or more conductor layers of an electrically conductive material and one or more shielding layers of a soft magnetic material. The shielding layer can be coated onto the conductor layer and has a lower conductivity and a higher magnetic permeability than the electrically conductive material of conductor layers. The shielding layer can, at least when alternating current (AC) flows through the multi-layered conductor at relatively high frequencies, provide a separate power path for at least a portion of the high frequency AC current, as well as absorb at least a portion of the high frequency noises associated with that separated high frequency AC current. Additionally, the shielding layer can be separated from the conductor layer at an output end of the multi-layered conductor so that output ends of the shielding layer and conductor layer can be electrically connected to different electrical devices or components.
-
公开(公告)号：US10393795B2
公开(公告)日：2019-08-27
申请号：US15659096
申请日：2017-07-25
Applicant: ABB Schweiz AG
Inventor： Eddy Aeloiza , Arun Kadavelugu , Joonas Puukko , Liming Liu , Jukka-Pekka Sjoroos
IPC: G01R31/26 , H01L29/16 , H01L29/78 , H03K17/687 , G01R31/28
Abstract: Unique systems, methods, techniques and apparatuses of semiconductor failure prognostication. One exemplary embodiment is a power converter comprising a semiconductor switch and a converter control system. The converter control system is configured to turn on the semiconductor switch, measure a first voltage and a current during reverse conduction, estimate junction temperature of the semiconductor device, turn off the semiconductor device, measure a second voltage after turning off the semiconductor device, determine a resistance value using the second voltage measurement, determine an expected resistance value, predict a failure of the semiconductor device using the resistance value and the expected resistance value, and transmit a semiconductor device failure warning.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.013 seconds)
