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公开(公告)号：US11228255B2
公开(公告)日：2022-01-18
申请号：US16819827
申请日：2020-03-16
申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft , Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
摘要： A rectifier assembly (20) for rectifying an AC voltage into a DC voltage has at least one first terminal (21, 22, 23), a second terminal (24) and an intermediate circuit (50). The first terminal (21, 22, 23) is connected via a circuit (31, 32, 33) to a neutral point (40), and the second terminal (24) is connected to the neutral point (40). The circuit arrangement (31, 32, 33) has a first branch (81) and a second branch (82) connected in parallel with the first branch (81). Both branches (81, 82) comprise a changeover arrangement (92, 93) and a coil (91, 94) connected in series with the changeover arrangement. The coil (91) in the first branch (81) is on the side of the changeover arrangement (92) averted from the neutral point (40), and the coil (94) in the second branch (82) is on the side facing the neutral point (40).
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公开(公告)号：US20210257848A1
公开(公告)日：2021-08-19
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：US20200295670A1
公开(公告)日：2020-09-17
申请号：US16819827
申请日：2020-03-16
申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft , Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
摘要： A rectifier assembly (20) for rectifying an AC voltage into a DC voltage has at least one first terminal (21, 22, 23), a second terminal (24) and an intermediate circuit (50). The first terminal (21, 22, 23) is connected via a circuit (31, 32, 33) to a neutral point (40), and the second terminal (24) is connected to the neutral point (40). The circuit arrangement (31, 32, 33) has a first branch (81) and a second branch (82) connected in parallel with the first branch (81). Both branches (81, 82) comprise a changeover arrangement (92, 93) and a coil (91, 94) connected in series with the changeover arrangement. The coil (91) in the first branch (81) is on the side of the changeover arrangement (92) averted from the neutral point (40), and the coil (94) in the second branch (82) is on the side facing the neutral point (40).
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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：US20220029596A1
公开(公告)日：2022-01-27
申请号：US17378842
申请日：2021-07-19
发明人： Daniel Spesser , Tim Pfizenmaier , Stefan Endres
摘要： A DC filter device includes: a first filter device connection; a second filter device connection; a third filter device connection; a fourth filter device connection; a coil core; at least one first coil arranged on the coil core, the at least one first coil being connected in between the first filter device connection and the third filter device connection; at least one second coil arranged on the coil core, the at least one second coil being connected in between the second filter device connection and the fourth filter device connection; and a third coil arranged on the coil core, the third coil having a first coil connection and a second coil connection. The first coil connection and the second coil connection are connected to one another via a circuit device, which circuit device has a resistor.
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公开(公告)号：US20200036180A1
公开(公告)日：2020-01-30
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：US11364810B2
公开(公告)日：2022-06-21
申请号：US17068984
申请日：2020-10-13
发明人： Daniel Spesser , Tim Pfizenmaier
摘要： A monitoring device for monitoring leakage currents at active conductors has a differential current measurement device, a signal generation device and a control device, which differential current measurement device is designed to record a first signal (I_DIFF) characterizing the differential current of the active conductors and to feed the first signal to the control device. The signal generation device is designed to generate at least one second signal (V_GRID) and to feed the second signal to the control device, which at least one second signal (V_GRID) includes information about the phase angle of a signal occurring at one of the active conductors. The control device is designed to generate a third signal (I_LC_RES) on the basis of the first signal (I_DIFF) and of the at least one second signal (V_GRID), which third signal characterizes the resistive leakage current.
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公开(公告)号：US20220029552A1
公开(公告)日：2022-01-27
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：US20210099005A1
公开(公告)日：2021-04-01
申请号：US17038156
申请日：2020-09-30
发明人： Daniel Spesser , Tim Pfizenmaier
摘要： A compensation device for compensating leakage currents has a differential current measurement device, a first signal generation device, an amplifier and a feeder device. The first signal generation device is designed to generate a first compensation current specification signal (I_COMP_S1) suitable for the compensation from the first signal (I_DIFF) from the differential current measurement device by way of analog signal processing and to feed this first compensation current specification signal (I_COMP_S1) to the amplifier in analog or digitized form. The amplifier is designed to generate a compensation current (I_COMP) on the basis of the first compensation current specification signal (I_COMP_S1), and the feeder device is designed to allow the compensation current to be fed in at at least one of the active conductors.
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公开(公告)号：US20200070677A1
公开(公告)日：2020-03-05
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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