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公开(公告)号：US11355945B2
公开(公告)日：2022-06-07
申请号：US17158233
申请日：2021-01-26
申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft , Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
IPC分类号： H02J7/00 , B60R16/033
摘要： A compensation device (20) for compensating for a discharge current has a compensation current generation device (28), a potential generation device (150), active conductor terminals (61, 62, 63, 64) and a PE conductor terminal (65), which active conductor terminals (61, 62, 63, 64) have a first active conductor terminal (61) and a second active conductor terminal (62; 64), which potential generation device (150) is interconnected with the first active conductor terminal (61) and has a potential generation device terminal (155), which potential generation device (150) is designed to provide a potential at the potential generation device terminal (155) which at least temporarily differs from the potential at the first active conductor terminal (61), and which compensation current generation device (28) is designed to effect a compensation current (I_COMP) between the potential generation device terminal (155) and the PE conductor terminal (65).
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公开(公告)号：US20220144118A1
公开(公告)日：2022-05-12
申请号：US17507072
申请日：2021-10-21
发明人： Daniel Spesser , Tim Pfizenmaier , Florian Mayer
摘要： An energy supply system has a switch, which in an on state connects first conductors of a first line to second conductors of a second line and in an off state disconnects the first conductors of the first line from the second conductors of the second line. A measurement apparatus determines a difference value characterizing the phase difference between a first AC voltage signal at one first conductor and a second AC voltage signal at one second conductor. A control apparatus outputs a command via a signal transmission apparatus depending on the phase difference value. The first command enables a vehicle connected to the charging station to change the phase position of a fed-in AC voltage signal in the feed-in mode to reduce the phase difference, and the control apparatus enables a first change of state of the switch from the off state to the on state.
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公开(公告)号：US11320494B2
公开(公告)日：2022-05-03
申请号：US16994748
申请日：2020-08-17
发明人： Tim Pfizenmaier , Daniel Spesser , Florian Mayer
摘要： A compensation device (20) for compensating for leakage currents has a differential current measuring device (22), a supply network detection device (42; 45), a control device (26), an amplifier (27), a compensation current selection device (36) and a feed-in device (39, 41). The supply network detection device (42; 45) generates a second signal (V_GRID; V_ES) characterizing the supply network (L1, L2, L3, N) connected to the active conductors (51, 52, 53, 54) and to supply it to the control device (26). The compensation current selection device (36) feeds in the compensation current (I_COMP) on the basis of a third signal (V_SEL) on at least one of the at least two different active conductors (51, 54), and the third signal (V_SEL) is dependent on the second signal (V_GRID; V_ES) to select at least one active conductor (51, 54) suitable for the connected supply network for the feed-in operation.
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公开(公告)号：US11289891B2
公开(公告)日：2022-03-29
申请号：US16522998
申请日：2019-07-26
发明人： Daniel Spesser , Tim Pfizenmaier
摘要： A method for reducing leakage currents in a protective conductor of an electricity network including a neutral conductor and a phase conductor in addition to the protective conductor. A differential current is determined depending on a phase conductor current in the phase conductor and a neutral conductor current in the neutral conductor. A compensation current is fed into the phase conductor and/or into the neutral conductor. The compensation current compensates for a leakage current caused by the differential current. Also described is a device for carrying out such a method.
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公开(公告)号：US11190003B2
公开(公告)日：2021-11-30
申请号：US16291381
申请日：2019-03-04
发明人： Tim Pfizenmaier , Daniel Spesser , Michael Kammer , Florian Habel , Eckhard Broeckmann , Frank Mehling , Michael Guenther Zeyen , Wolfgang Hofheinz , Guenter Uhl , Dietmar Bytzek , Juergen Hetzler , Stefan Zeltner , Stefan Endres , Christoph Sessler
摘要： A method for controlling a charging apparatus of a vehicle, in particular an electric or hybrid vehicle, wherein the charging apparatus has a charging device including a protection and monitoring device. The vehicle includes a high-voltage on-board power system and an electrical energy storage apparatus connected to the high-voltage on-board power system. The method includes electrically connecting the high-voltage on-board power system to charging connections of an energy supply system by the charging apparatus. The charging connections include a neutral conductor, a protective conductor and at least one phase conductor. A protective conductor resistance is detected between the neutral conductor and the protective conductor by feeding in a test current by the protection and monitoring device. A frequency of the test current is filtered out of the compensation frequency range on a narrowband basis.
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公开(公告)号：US11173800B2
公开(公告)日：2021-11-16
申请号：US16556392
申请日：2019-08-30
发明人： Daniel Spesser , Tim Pfizenmaier
摘要： A method for controlling a vehicle-external charging device for charging a vehicle. The charging device has an AC current grid having a neutral conductor, a protective conductor and at least one phase conductor, a protection and monitoring apparatus, and a DC current charging terminal. The vehicle includes a high-voltage on-board power system and an electrical energy storage element connected to the on-board power system. The method includes electrically connecting the on-board power system to the DC current charging terminal of the charging device, and detecting a protective conductor resistance between the neutral conductor and the protective conductor by feeding in a test current by way of the protection and monitoring apparatus. A frequency of the test current is either outside of a compensation frequency range of the protection and monitoring apparatus or within the compensation frequency range and is filtered out of the compensation frequency range on a narrowband basis.
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公开(公告)号：US20240178738A1
公开(公告)日：2024-05-30
申请号：US18520307
申请日：2023-11-27
申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft , Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Daniel Spesser , Tim Pfizenmaier , Florian Mayer , Stefan Endres
CPC分类号： H02M1/0038 , H02M1/0009 , H02M1/0043 , H02M1/32 , H02J7/00304
摘要： A method compensates for leakage currents in a protective conductor of an electrical power converter. The method includes: using a first differential current sensor for determining a differential current depending on a phase conductor current in a phase conductor and a neutral conductor current in a neutral conductor; feeding a compensation current into the phase conductor and/or into the neutral conductor via a first compensation circuit; using a second differential current sensor for capturing a signal representing remaining residual leakage current; converting the signal representing the residual leakage current to a frequency domain; generating a compensation signal for the residual leakage current in a frequency-selective manner; converting the compensation signal to a time domain; supplying the converted compensation signal converted to the first compensation circuit or a second compensation circuit; and feeding a residual compensation current corresponding to the compensation signal into the phase conductor(s) and/or into the neutral conductor.
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公开(公告)号：US11837967B2
公开(公告)日：2023-12-05
申请号：US17382252
申请日：2021-07-21
发明人： Daniel Spesser , Tim Pfizenmaier , Florian Mayer , Stefan Endres
摘要： A rectifier arrangement for rectifying an AC voltage into a DC voltage has connections, circuit arrangements, an interconnection apparatus and an intermediate circuit. Each circuit arrangement has first and second circuit arrangement connections, between which a changeover arrangement and a coil are connected in series with the changeover arrangement. The changeover arrangements are interconnected to the intermediate circuit. The interconnection apparatus is designed to enable at least a first configuration and a second configuration. In the first configuration, the circuit arrangements form a first group and a second group, with two connections connected to the circuit arrangements in the first group, but not to the circuit arrangements in the second group, and two connections are connected to the circuit arrangements in the second group, but not to the circuit arrangements in the first group. In the second configuration, at least one of the connections is connected to all circuit arrangements.
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公开(公告)号：US11637505B2
公开(公告)日：2023-04-25
申请号：US17381243
申请日：2021-07-21
发明人： Daniel Spesser , Tim Pfizenmaier , Florian Mayer , Stefan Endres
IPC分类号： H02M7/217
摘要： A rectifier arrangement (20) for rectifying an AC voltage into a DC voltage has connections, circuit arrangements, an interconnection apparatus (26) and an intermediate circuit (50). The connections include first and second connections (22, 21). The intermediate circuit (50) has a first line (51), a second line (52) and at least one capacitor (61, 62) between the first and second lines (51, 52). The circuit arrangements (31, 32, 33, 34, 35, 36) each have a first circuit arrangement connection (A) and a second circuit arrangement connection (B), between which a changeover arrangement (92) and a coil (91) are connected in series. The interconnection apparatus (26) enables at least: a first configuration in which the first connection (22) is connected to at least one first circuit arrangement connection (A), and a second configuration in which the first connection (22) is connected to at least one second circuit arrangement connection (B).
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公开(公告)号：US11283366B2
公开(公告)日：2022-03-22
申请号：US16819263
申请日：2020-03-16
摘要： A rectifier arrangement (20) for rectifying an AC voltage into a DC voltage has a first connection (21), a second connection (22), a third connection (23) and a fourth connection (24), which rectifier arrangement (20) has an intermediate circuit (50) with a first line (51), a second line (52) and a node point (53), which node point (53) is connected to the first line (51) via at least one first capacitor (61) and to the second line (52) via at least one second capacitor (62), which first connection (21), second connection (22) and third connection (23) are each connected to a star point (40) via an associated circuit arrangement (31, 32, 33), which fourth connection (24) is likewise connected to the star point (40), and which star point (40) is connected to the node point (53) via a controllable switch (45).
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