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公开(公告)号：US20230216429A1
公开(公告)日：2023-07-06
申请号：US17996389
申请日：2020-04-27
IPC分类号： H02M7/5387 , G01R31/52
CPC分类号： H02M7/5387 , G01R31/52
摘要： An electric power conversion apparatus includes: an electric power conversion circuit that allows a DC terminal to be connected to a DC power source via a DC bus line, and performs at least one of converting DC power of the DC power source into AC power to output, or converting AC power into DC power to output; a DC switch turned on when the electric power conversion circuit performs electric power conversion; an AC switch provided on a side of the AC terminal, and turned on when the electric power conversion circuit performs the electric power conversion; a DC voltmeter that measures a potential at a predetermined portion, on a side of the DC terminal; a ground connection portion that connects the DC bus line and ground potential; and a control circuit connected to the electric power conversion circuit, the DC switch, the AC switch, and the DC voltmeter.
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公开(公告)号：US20230198291A1
公开(公告)日：2023-06-22
申请号：US17995668
申请日：2020-12-01
发明人： Koki NAKAMURA
摘要： An uninterruptible power supply device includes a housing having a rectangular parallelepiped shape, a plurality of units vertically stacked and accommodated in housing, and a fan unit having a plurality of fans aligned on an upper surface of housing. Each of the upper surface and the lower surface of housing is formed with an opening through which a wire is led into housing.
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公开(公告)号：US20230187941A1
公开(公告)日：2023-06-15
申请号：US17922384
申请日：2021-02-17
发明人： Yasuaki MITSUGI
CPC分类号： H02J3/38 , H02J3/32 , H02J3/16 , H02J2207/20 , H02J7/0048
摘要： A power storage system includes multiple power storage devices, multiple power conversion devices, and a control device; the multiple power storage devices are capable of discharging and charging DC power; the multiple power conversion devices are connected to the multiple power storage devices and a bad, convert the DC power stored in the multiple power storage devices into power corresponding to the bad, supply the power to the bad based on the DC power stored in the multiple power storage devices, convert power of the load into DC power corresponding to the multiple power storage devices, and charge the multiple power storage devices based on the power of the load side; the control device controls a power conversion operation of the multiple power conversion devices. Accordingly, a power storage system and a control device are provided in which the power loss can be suppressed.
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公开(公告)号：US20230170825A1
公开(公告)日：2023-06-01
申请号：US17997326
申请日：2020-04-30
发明人： Hironobu KUSUNOKI
IPC分类号： H02M7/5387 , H02M7/53862 , H02M1/32 , H02M1/00 , H02M1/084
CPC分类号： H02M7/5387 , H02M7/53862 , H02M1/325 , H02M1/0009 , H02M1/084
摘要： According to an embodiment, a power converter (1) includes a main circuit (10), an electrification control unit (25), and an analysis unit (24). The main circuit includes a plurality of switching devices (Q1 to Q4), converts direct-current power into multiphase alternating-current power through switching of the plurality of switching devices, is able to supply the multiphase alternating-current power to an alternating-current load (2) connected to an output side, and output a detection result of a device short circuit current flowing in each of the plurality of switching devices. The electrification control unit electrifies the plurality of switching devices for a predetermined time based on one of a plurality of pre-decided analysis test electrification patterns. The analysis unit analyzes soundness of the main circuit using a load current flowing from the main circuit to the alternating-current load, a phase voltage output by the main circuit, and data at the time of electrification for the predetermined time with regard to the device short circuit current flowing in each of the plurality of switching devices.
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公开(公告)号：US20230156949A1
公开(公告)日：2023-05-18
申请号：US17998377
申请日：2021-04-05
发明人： Mitsuru HANO
CPC分类号： H05K7/02 , H05K9/0075 , H05K9/0081
摘要： A substrate unit of an embodiment includes a plurality of substrates and a holding part. The plurality of substrates are arranged at a constant interval in a thickness direction. The holding part integrally holds the plurality of substrates and allows, relative to one substrate of the plurality of substrates, another substrate to be movable along a plane direction of the substrate.
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公开(公告)号：US20230145367A1
公开(公告)日：2023-05-11
申请号：US16958761
申请日：2019-10-10
发明人： Ryosuke HIGASHIYA , Akira NOJIMA , Nobuo SHIMIZU , Ryo SHIMIZU
IPC分类号： G05B19/4155
CPC分类号： G05B19/4155 , G05B2219/32404
摘要： A SCADA web HMI system dynamically distributes server connection priority lists from web HMI servers to HMI clients in accordance with order of assignment which takes load balancing into account. As a result, preliminary settings associated with connection priority do not need to be made on the HMI clients. Also, since the server connection priority lists are assigned to the HMI clients in accordance with the order of assignment which takes load balancing into account, the numbers of clients connected to the individual web HMI servers are equalized and the load balancing can be ensured. The SCADA web HMI system can reduce the operating costs necessary in client settings while ensuring redundancy and load balancing of servers.
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公开(公告)号：US20230134153A1
公开(公告)日：2023-05-04
申请号：US17907726
申请日：2020-07-03
发明人： Yuki YAMASHITA , Tomohiro TANAKA
摘要： A plurality of UPSs are connected in parallel between an AC power supply and a load. The UPSs each include a first switch connected between the AC power supply and an AC node. During the first power feeding mode, a control device turns on the first switch, and controls a power conversion device so as to receive AC power from the AC node and generate AC power. During a second power feeding mode, the control device turns off the first switch, and controls the power conversion device so as to receive DC power from a power storage device and generate AC power. When the AC power supply recovers during the second power feeding mode, the control device successively switches the plurality of UPSs to the first power feeding mode by successively turning on a plurality of the first switches each of which corresponds to each of the plurality of UPSs.
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公开(公告)号：US20230039409A1
公开(公告)日：2023-02-09
申请号：US17784070
申请日：2020-11-10
发明人： Xiaochen ZHANG , Yousuke HAYASHI
摘要： An uninterruptible power supply includes a plurality of vacuum circuit breakers and a bypass circuit connected in series between a commercial AC power supply and a load, a control device that turns on both of the plurality of vacuum circuit breakers and the bypass circuit when the commercial AC power supply is normal and turns off a vacuum circuit breaker different from a vacuum circuit breaker turned off on the occurrence of previous power failure of the plurality of vacuum circuit breakers and turns off the bypass circuit when the commercial AC power supply fails, and a power converter that converts DC power of a battery into AC power and supplies AC power to the load when the commercial AC power supply fails.
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公开(公告)号：US11567482B2
公开(公告)日：2023-01-31
申请号：US16476780
申请日：2018-08-31
IPC分类号： G05B19/418 , G06F11/00 , G06F17/00
摘要： A manufacturing process monitoring apparatus capable of determining a manufacturing process is anomaly, without requiring any threshold value for determining the as anomaly is provided. The manufacturing process monitoring apparatus includes a data conversion unit configured to convert process data of a manufacturing facility, a feature value analysis unit configured to analyze the converted data based on information on feature values, a data restoration unit configured to restore data for each of a plurality of categories based on the information on the feature values and information on the analyzed result, a similarity calculation unit configured to calculate a similarity for each of the plurality of categories based on the data used when being analyzed and the restored data, a category determination unit configured to determine a category of the data based on the similarity for each of the plurality of categories, a category classification unit configured to classify the category to which the process data belongs, and a process state diagnostic unit configured to diagnose a state of the manufacturing process based on a result of comparison between the determined category and the classified category.
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公开(公告)号：US20230013017A1
公开(公告)日：2023-01-19
申请号：US17790762
申请日：2021-06-25
发明人： Ren ARITA , Kensuke WATANABE
IPC分类号： H01J37/32
摘要： Provided in an active gas generation apparatus according to the present disclosure is a gas separation structure of separating a gas flow between an in-housing space and a discharge space by a cooling plate, an electrode holding member, and a high voltage apply electrode part. The active gas generation apparatus further includes an auxiliary metal electrode provided on an upper surface of an electrode dielectric film in the high voltage apply electrode part. The auxiliary metal electrode is provided to overlap with part of an active gas transmission path in a plan view, and set to ground potential.
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