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公开(公告)号：US11664742B2
公开(公告)日：2023-05-30
申请号：US16985570
申请日：2020-08-05
发明人： Grzegorz Popek , Stephen Minshull
IPC分类号： H02M7/5387 , H02M1/32 , H02M7/219
CPC分类号： H02M7/53873 , H02M1/32 , H02M1/327 , H02M7/219
摘要： An AC-DC power converter includes a bridge circuit that has a first phase leg with first and second power switches connected to each other in series, a second phase leg with third and fourth power switches connected to each other in series. The first phase leg and the second phase leg are connected to the each other via a bridging connection to form the bridge circuit. The converter also includes means for providing power to said bridge circuit, and means for measuring an output voltage of said bridge circuit.
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公开(公告)号：US11201539B2
公开(公告)日：2021-12-14
申请号：US16706354
申请日：2019-12-06
发明人： Grzegorz Popek , Stephen Minshull
摘要： A power train is described herein comprising a load, a first power supply for providing power to the load, a DC-link capacitor connected to the load, a main converter configured to convert DC power to AC power for powering the load; and pre-charge circuitry. The pre-charge circuitry comprises pre-charge means configured to, during a first, pre-charge phase, prevent said power from being provided to said load but provide power to said DC-link capacitor to charge said DC-link capacitor, and, further configured to, during a second, post-charge phase, allow said power to be provided from said first power supply to said load. A method for providing power to the load is also described herein.
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公开(公告)号：US11652427B2
公开(公告)日：2023-05-16
申请号：US17677063
申请日：2022-02-22
发明人： Stephen Minshull , Grzegorz Popek
摘要： A system for providing electric motor control to a plurality of motor loads. The system comprises a plurality of motor controllers that are configurable into different arrangements of motor controllers. The system further comprises a central controller that is operable to individually set a phase and/or frequency of respective PWM carrier signals for the motor controllers, wherein the central controller is configured to set the phase and/or frequency of the PWM carrier signals for the motor controllers within a respective arrangement of motor controllers differently depending on the configuration of the motor controllers within the arrangement.
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公开(公告)号：US20210135599A1
公开(公告)日：2021-05-06
申请号：US16985570
申请日：2020-08-05
发明人： Grzegorz Popek , Stephen Minshull
IPC分类号： H02M7/5387 , H02M1/32
摘要： An AC-DC power converter is described herein comprising a bridge circuit comprising a first phase leg comprising first and second power switches connected to each other in series, a second phase leg comprising third and fourth power switches connected to each other in series, wherein the first phase leg and the second phase leg are connected to the each other via a bridging connection to form the bridge circuit; said convertor further comprising means for providing power to said bridge circuit, and means for measuring an output voltage of said bridge circuit. A method for monitoring the health of such an AC-DC converter is also described herein.
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公开(公告)号：US10972031B2
公开(公告)日：2021-04-06
申请号：US16031018
申请日：2018-07-10
发明人： Virgilio Valdivia Guerrero , Joshua Parkin , Thomas Gietzold , Grzegorz Popek , Daniel Diaz-Lopez
摘要： The present disclosure provides a system and method that provides active damping at the input of a motor drive system without the need for the hardware used in conventional and RC damping circuits. According to the disclosure a virtual damping network is realised at the input of the motor drive system based on modification of field-oriented control, FOC. More specifically, a control algorithm creates a virtual damping impedance at the motor drive input by applying a damping algorithm to both q and d components of the motor current.
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公开(公告)号：US20240297577A1
公开(公告)日：2024-09-05
申请号：US18395476
申请日：2023-12-22
CPC分类号： H02M1/325 , H02M1/007 , H02M7/4833 , H02P27/06
摘要： A controller for a DC-AC inverter circuit. The circuit comprises two terminals for receiving a DC-link voltage, two or more capacitors connected in series between the two terminals, wherein each capacitor has a capacitor voltage. The circuit is configured to convert an input electrical power to an output electrical power for operating a main electrical load. The controller is configured to, in response to the main electrical load becoming non-operational, configure the circuit into a balancing mode. In the balancing mode the controller configures the circuit to output electrical power to an electrical component, such that the DC-AC inverter circuit remains operational to balance the capacitor voltages while the main electrical load remains non-operational.
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公开(公告)号：US20230028926A1
公开(公告)日：2023-01-26
申请号：US17863233
申请日：2022-07-12
发明人： Grzegorz Popek , Stephen Minshull
摘要： The present invention relates to a system and method for the monitoring and detection of insulation degradation in electric systems. The system comprises a controller for an electric motor (3), including input circuitry (2a) for connecting the controller to a power supply (1), power conversion circuitry (2b) for providing a power output for the electric motor (3), and sensing circuitry (2c) for monitoring a current inside the controller that is representative of a return leakage current from the electric motor to the motor controller. A condition of the insulation may be determined based on the monitored current.
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公开(公告)号：US11277082B2
公开(公告)日：2022-03-15
申请号：US16985590
申请日：2020-08-05
发明人： Grzegorz Popek , Mital Shah
摘要： A motor drive system comprises a power converter arranged to supply an input voltage to a motor connected to the power converter by a cable arrangement. The cable arrangement includes first, second, and third conductors, each of said conductors being electrically coupled at one end to the power converter, and to the motor at the other end. A resistive portion is connected to a respective node of each of said first, second, and third conductors. A capacitive portion is connected to the resistive portion in series. A switching portion is connected in parallel to the capacitive portion and is operable in open and closed states. In the closed state, the capacitive portion is bypassed, providing for dissipation of regenerative energy from the motor. In the open state, the capacitive portion is not bypassed, and acts with the resistive portion to provide RC damper functionality to mitigate transmission line effects from the conductors.
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9.发明公开公开(公告)号：US20240339939A1
公开(公告)日：2024-10-10
申请号：US18628523
申请日：2024-04-05
摘要： A multilevel power converter comprising: a DC bus having a positive terminal and a negative terminal; a plurality of switches for each of a plurality of phase legs of the power converter connected between the positive terminal and the negative terminal, each power leg having an output for provided a converted voltage output according to the switching control of the plurality of switches; and wherein a current sensor provided in each phase leg connected in series between an adjacent pair of the plurality of switches.
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公开(公告)号：US11509255B2
公开(公告)日：2022-11-22
申请号：US17008881
申请日：2020-09-01
发明人： Grzegorz Popek , Stephen Minshull
IPC分类号： H02P29/028 , G01R31/34
摘要： A short circuit detection system and method that identifies a short circuit between turns of a winding of a permanent magnet machine having a three-phase winding in response to detection of imbalances between the three motor phases at an instant in time. The imbalances are identified by monitoring motor terminal voltages and currents.
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