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公开(公告)号：US20240170972A1
公开(公告)日：2024-05-23
申请号：US18385289
申请日：2023-10-30
发明人： Teng Liu , Jianxing Dong , Xiaohu Li , Ming Wang
CPC分类号： H02J3/381 , H02J3/32 , H02J2300/28
摘要： An electrical system includes a first conduction terminal, a second conduction terminal, N power units and N supporting devices. The N power units are electrically connected between the first conduction terminal and the second conduction terminal in series, and N is an integer greater than or equal to 2. Each of the N supporting devices includes a conductive part and a support part. Each of the N power units is disposed on the corresponding conductive part. The conductive part is electrically connected with a power terminal of one of the N power units or electrically connected with a reference potential of the electrical system. The support part is connected between the corresponding conductive part and a ground potential.
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公开(公告)号：US11463016B2
公开(公告)日：2022-10-04
申请号：US16465004
申请日：2017-12-15
发明人： Jianping Ying , Ming Wang , Xiaobo Huang , Jun Liu , Zhiming Hu
摘要： A modular power supply system includes: a main controller, configured to output a main control signal; N local controllers, wherein each of the local controllers is configured to receive the main control signal to output at least one local control signal; and N power units, in one-to-one correspondence with the N local controllers, wherein each of the power units includes a first end and a second end, and the second end of each of the power units is connected to the first end of an adjacent one of the power units, each of the power units is configured to include M power converters, each of the power converters is configured to operate according to the local control signal, wherein the same local control signal controls the power semiconductor switches at an identical position in at least two of the M power converters to be simultaneously turned on and off.
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公开(公告)号：US11183947B2
公开(公告)日：2021-11-23
申请号：US16465741
申请日：2017-12-15
发明人： Jianping Ying , Ming Wang , Xiaobo Huang , Jun Liu , Zhiming Hu
摘要： A modular power supply system is configured to include: a main controller, configured to output a main control signal; N local controllers, wherein each of the local controllers is configured to receive the main control signal to output at least one local control signal; N auxiliary power supplies, in one-to-one correspondence with the N local controllers, wherein each of the auxiliary power supplies is configured to provide power to the corresponding local controller, and N power units, in one-to-one correspondence with the N local controllers, wherein each of the power units includes a first end and a second end, the second end of each of the power units is connected to the first end of an adjacent one of the power units, each of the power units is configured to include M power converters, each of the power converters is configured to operate according to the local control signal.
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公开(公告)号：US10924030B2
公开(公告)日：2021-02-16
申请号：US16464882
申请日：2017-12-15
发明人： Jianping Ying , Ming Wang , Xiaobo Huang , Jun Liu , Zhiming Hu
摘要： A modular power supply system, includes: a main controller, configured to output a main control signal; N local controllers, wherein each of the local controllers is configured to receive the main control signal to output at least one local control signal; and N power units, in one-to-one correspondence with the N local controllers, wherein each of the power units includes a first end and a second end, the second end of each of the power units is connected to the first end of an adjacent one of the power units, each of the power units includes M power converters, and each of the power converters is configured to operate according to the local control signal output by a corresponding local controller, wherein each of the power units further includes: M sampling circuits, configured to sample positive DC bus voltages and negative DC bus voltages of the M power converters respectively.
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公开(公告)号：US09658258B2
公开(公告)日：2017-05-23
申请号：US14732781
申请日：2015-06-08
发明人： Hong-Jian Gan , Ming Wang , Bo-Yu Pu , Yi Zhang
CPC分类号： G01R19/2509 , G01R15/04
摘要： A voltage sampling system is provided. The voltage sampling system includes a first and a second input paths and a signal-processing module. The first input path includes a first input voltage-dividing resistor unit, a second input voltage-dividing resistor unit and a first DC voltage-dividing resistor unit to generate a first input divided voltage and a first DC bias voltage to further generate a first sampled voltage signal according to a first input voltage and a DC voltage source. The second input path includes a third input voltage-dividing resistor unit, a fourth input voltage-dividing resistor unit and a second DC voltage-dividing resistor unit to generate a second input divided voltage and a second DC bias voltage to further generate a second sampled voltage signal according to a second input voltage and the DC voltage source. The signal-processing module receives the first and the second sampled voltage signals to perform signal processing.
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公开(公告)号：US11101740B2
公开(公告)日：2021-08-24
申请号：US16464733
申请日：2017-12-15
发明人： Jianping Ying , Ming Wang , Xiaobo Huang , Jun Liu , Zhiming Hu
摘要： A modular power supply system includes: a main controller, configured to output a main control signal; N local controllers, wherein each of the local controllers is configured to receive the main control signal to output at least one local control signal; and N power units, in one-to-one correspondence with the N local controllers, wherein each of the power units includes a first end and a second end, and the second end of each of the power units is connected to the first end of an adjacent one of the power units, each of the power units is configured to include M power converters, wherein each of the power converters includes a third end and a fourth end, the fourth end of each of the power converters is connected to the third end of an adjacent one of the power converters.
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7.发明授权公开(公告)号：US09887534B2
公开(公告)日：2018-02-06
申请号：US14689034
申请日：2015-04-16
发明人： Ming Wang , Jian-Ping Ying , Jian-Gang Huang , Li-Feng Qiao , Tao Jiang
CPC分类号： H02H3/20 , G01R15/148 , G01R31/025 , H02H7/10
摘要： A short-circuit detecting device includes a coil and a processing circuit. The coil is configured to detect a variation of magnetic flux intensity generated by a current variation of a current flowing through a power semiconductor switch and to generate an induced electromotive force based on the variation of magnetic flux intensity. When the current variation rate of said current is greater than a predetermined value, the processing circuit is configured to generate a short-circuit signal based on the induced electromotive force so as to turn off the power semiconductor switch based on the short-circuit signal.
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公开(公告)号：US09748831B2
公开(公告)日：2017-08-29
申请号：US14740280
申请日：2015-06-16
发明人： Hong-Jian Gan , Ming Wang , Jian-Ping Ying , Bing Zhang
IPC分类号： H02M1/32 , H03K17/082 , H03K17/18
CPC分类号： H02M1/32 , H02M2001/327 , H03K17/082 , H03K17/18
摘要： A power conversion device includes a power semiconductor switch module, a driving signal-transmitting circuit, a plurality of failure-detecting circuits, a protection signal transmitting circuit and a control circuit. The driving signal transmitting circuit receives a control signal and generates a driving signal according to the control signal to drive the power semiconductor switch module. The failure detecting circuits generate a fault signal when they detect that one of the power semiconductor switches and/or the driving signal transmitting circuit is malfunctioning. The isolated pulse transforming unit of the protection signal transmitting circuit receives a corresponding fault pulse signal generated according to the fault signal, and outputs a protection pulse signal. The control circuit generates the control signal and receives a protection signal generated according to the protection pulse signal. The control circuit generates a turn off signal according to the protection signal to turn off the power semiconductor switch module.
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公开(公告)号：US12119741B2
公开(公告)日：2024-10-15
申请号：US17232110
申请日：2021-04-15
发明人： Peng Xiao , Ming Wang , Yi Zhang , Teng Liu , Jianping Ying
CPC分类号： H02M1/32 , G01R31/3004 , H02M7/483
摘要： A modular multilevel converter system, and a voltage detection method and an open-circuit fault diagnosis method thereof are disclosed. The modular multilevel converter system includes: N sub-modules sequentially cascaded, where N is an integer greater than or equal to 2, each of the sub-modules comprising at least one bridge arm and a capacitor connected in parallel to the bridge arm, the capacitor having a positive terminal and a negative terminal; and a voltage detection unit for detecting a voltage between at least two adjacent sub-modules in the N sub-modules, the voltage detection unit being connected between the positive terminal of the capacitor of the first sub-module and the negative terminal of the capacitor of the last sub-module in the at least two sub-modules.
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公开(公告)号：US10374504B2
公开(公告)日：2019-08-06
申请号：US15708323
申请日：2017-09-19
发明人： Jianping Ying , Ming Wang , Xiaobo Huang , Jun Liu
摘要： A power unit includes: a plurality of power converters, a first output terminal of one of two adjacent power converters among the plurality of power converters is connected successively to a second output terminal of the other one of the two adjacent power converters; a local controller configured to output a plurality of control signals; and a plurality of driving circuits configured to output driving signals according to the plurality of control signals, to drive the plurality of power semiconductor switches to be turned on and off, wherein the control signals corresponding to the power semiconductor switches in the same position of the plurality of power converters are the same, the power semiconductor switches in the same position of the plurality of power converters are simultaneously turned on and off.
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