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公开(公告)号：US20240305212A1
公开(公告)日：2024-09-12
申请号：US18433011
申请日：2024-02-05
IPC分类号： H02M7/00 , H02M1/08 , H02M1/32 , H02M7/5387
CPC分类号： H02M7/003 , H02M1/08 , H02M1/327 , H02M7/5387
摘要： A submodule for a power converter is described. The submodule includes a first and a second power storage devices and a first stack of electronic device packages. The first stack includes a first, a second, a third, and a fourth electronic device package. A first power device and the first and second electronic device packages form a first half bridge converter, and a second power device and the third and fourth electronic device packages form a second half bridge converter.
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公开(公告)号：US20240305202A1
公开(公告)日：2024-09-12
申请号：US18433861
申请日：2024-02-06
发明人： Alfred PERMUY , Cyrille BAVIERE
CPC分类号： H02M3/315 , H02M1/0064 , H02M1/088
摘要： A power supply system for arc furnace is described. The power supply system includes a power converter and a polyphase transformer. The power supply system further includes first disconnecting means connecting the input of the power converter to the primary circuit, second disconnecting means connecting the output of the power converter to the primary circuit, and the power supply system further includes a control circuit configured to control the power converter to supply the electrode and to stabilize the courant and the voltage delivered by the grid to reduce reactions in the grid when the first disconnecting means are open and the second disconnecting means are closed, and to control the power converter to stabilize the courant and the voltage delivered by the grid to reduce reactions in the grid when the first disconnecting means are closed and the second disconnecting means are open.
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公开(公告)号：US12081140B2
公开(公告)日：2024-09-03
申请号：US17714992
申请日：2022-04-06
发明人： Nathaniel B. Hawes , Jovan Z. Bebic , Xiaohong Li
CPC分类号： H02M7/4835 , H02M7/493
摘要： Provided is a modular multilevel converter and a method for synchronizing outputs of sub-modules of the converter. The modular multilevel converter includes sub-modules connected in parallel, and each sub-module generates an output. The modular multilevel converter also includes a controller that is communicatively coupled to the sub-modules. The controller controls a flow of one or more synchronizing signals between the plurality of sub-modules, such that each sub-module receives the synchronizing signals in opposite directions simultaneously, thereby controlling a synchronization of the outputs generated by the sub-modules.
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公开(公告)号：US12062908B2
公开(公告)日：2024-08-13
申请号：US17430236
申请日：2020-02-03
发明人： Nicolas Lapassat
CPC分类号： H02H9/025 , H01H33/596 , H02H3/093
摘要： This electrical protection system for a DC-current medium-voltage electrical circuit, comprising a disconnection module, for generating a counter-voltage greater than the voltage of the source for a current flowing therethrough that is equal to at most a few percent of the nominal current of the device, a resistive limitation module connected between a first terminal and a second terminal and configured so as to reduce the intensity of the output current of the protection system in order to limit the current between a value and upon a low impedance fault downstream of the device, and a primary switching module coupled in parallel across the disconnection module and the resistive module. The primary switching module is configured so as to switch between a first state in which the primary switching module is conductive and a second state in which the primary switching module forms a short circuit. Control means for controlling the primary switching module are configured so as to switch the primary switching module as soon as the current flowing in the first terminal reaches an upper limit value as lower value or a lower limit as upper value.
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公开(公告)号：US12049921B2
公开(公告)日：2024-07-30
申请号：US17342311
申请日：2021-06-08
发明人： Lionel Julliand , Bruno Fieberling , Xinmin Fan
CPC分类号： F16C33/046 , F16C17/10 , F16C17/107 , F16C33/26 , F16C43/02 , F16C2326/30
摘要： A ring for shaft bearing of a marine vehicle drive unit has an annular body and a cylindrical active part intended to provide a sliding contact function with another ring at the bearing level. The cylindrical part is segmented into several cylindrical surfaces, each cylindrical surface being attached in a removable manner to the annular body.
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公开(公告)号：US11876457B2
公开(公告)日：2024-01-16
申请号：US17294317
申请日：2019-11-12
发明人： Hamza El Jihad , Elise Savarit , Sami Siala
IPC分类号： H02M1/00 , H02M7/5395 , H02M5/293
CPC分类号： H02M5/2932 , H02M1/0025 , H02M7/5395
摘要： A method of controlling of a polyphase power converter driven by an algorithm of the pulse width modulation type, in which a control parameter comprising a drive setpoint value or a pulse duration associated with a value of drive setpoint of at least one phase, situated in a non-linearity zone of a chart, is modified by modifying the value of said parameter so that it is in a linearity zone of the chart. The control parameter of each of the phases is modified in the same manner.
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公开(公告)号：US20230378859A1
公开(公告)日：2023-11-23
申请号：US18319654
申请日：2023-05-18
发明人： Nicolas LEBOEUF
CPC分类号： H02K19/10 , H02K1/185 , H02K13/003 , H02K13/006 , H02K1/20
摘要： Provided is a synchronous electrical machine that includes a stator and a wounded rotor, the stator having a plurality of phases, each phase comprising coils connected together and magnetic stator poles cores fixed on a stator frame and evenly distributed along a stator diameter, each coil being wounded around a different magnetic stator pole core to form a magnetic stator pole, each phase comprising a same number of magnetic stator poles, the magnetic stator poles of each phase being disposed in the stator frame to form a concentric winding stator. The rotor includes a plurality of magnetic rotor pole cores evenly distributed around the rotor and rotor coils, each rotor coil being wounded around a different magnetic rotor pole core to form a magnetic rotor pole.
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公开(公告)号：US20220231599A1
公开(公告)日：2022-07-21
申请号：US17607606
申请日：2020-04-29
发明人： Martin Geske , Hendrik Gloes , Thomas Brueckner
摘要： A power converter system is described. The system includes a power converter with a first converter including a plurality of semiconductor devices. Each semiconductor device includes at least a controllable semiconductor switch having a threshold voltage and a gate voltage for normal on-state conduction. The first converter has first and second DC terminals connected to a DC circuit, and a plurality of AC terminals. A controller is configured to supply current to the first converter (e.g., from an AC power source) and enable a short circuit state of the first converter by controlling semiconductor switches of the first converter to create at least one short circuit path through the first converter that carries the supplied current. At least one of the semiconductor switches in at least one of the short circuit paths is operated with modified on-state conduction in order to increase conduction losses. A gate driver applies to the semiconductor switch a modified gate voltage that is less than the gate voltage for normal on-state conduction.
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公开(公告)号：US20220214406A1
公开(公告)日：2022-07-07
申请号：US17551131
申请日：2021-12-14
发明人： Olivier Rudloff
IPC分类号： G01R31/42 , H02M1/36 , H02M7/5387 , G01R31/34
摘要： A testing process for an electrical system is described. The electrical system includes a power converter (2) and a direct current (DC) bus (12) with two or more DC bus terminals (14a, 14b, 14c), and at least one DC bus capacitor (16a, 16b). The testing process is a fully automated testing process where a sequence of different diagnostic tests are carried out on the electrical system, each diagnostic test testing one of the power converter (2) and the DC bus (12) to determine if it is responding as expected or operating within normal parameters.
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公开(公告)号：US20220115863A1
公开(公告)日：2022-04-14
申请号：US17430236
申请日：2020-02-03
发明人： Nicolas Lapassat
摘要： This electrical protection system for a DC-current medium-voltage electrical circuit, comprising a disconnection module, for generating a counter-voltage greater than the voltage of the source for a current flowing therethrough that is equal to at most a few percent of the nominal current of the device, a resistive limitation module connected between a first terminal and a second terminal and configured so as to reduce the intensity of the output current of the protection system in order to limit the current between a value and upon a low impedance fault downstream of the device, and a primary switching module coupled in parallel across the disconnection module and the resistive module. The primary switching module is configured so as to switch between a first state in which the primary switching module is conductive and a second state in which the primary switching module forms a short circuit. Control means for controlling the primary switching module are configured so as to switch the primary switching module as soon as the current flowing in the first terminal reaches an upper limit value as lower value or a lower limit as upper value.
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