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公开(公告)号：US20240235195A1
公开(公告)日：2024-07-11
申请号：US18612637
申请日：2024-03-21
发明人： Sebastian Umlauf
IPC分类号： H02J3/01 , H01F27/26 , H01F27/28 , H01F27/40 , H02J3/24 , H02J3/26 , H02J3/36 , H02J3/38 , H02M7/44
CPC分类号： H02J3/01 , H01F27/26 , H01F27/28 , H01F27/40 , H02J3/241 , H02J3/26 , H02J3/38 , H02M7/44 , H02J3/36
摘要： The disclosure relates to a power electronics device having at least two inverters and a transformer apparatus having a core arrangement, at least one primary winding and at least one secondary winding that wind around the core arrangement at least in sections.
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公开(公告)号：US20240213775A1
公开(公告)日：2024-06-27
申请号：US18556112
申请日：2022-03-03
发明人： Takashi SHIGEMASA , Hiroyuki KOURA
CPC分类号： H02J3/01 , H02J3/16 , H02J3/38 , H02J2300/24
摘要： A power conversion device includes a major circuit part converting a power of a distributed power source into AC power corresponding to a power system, and a controller controlling an operation of the major circuit part; the controller includes an estimated value calculation part and a reactive power calculation part; the estimated value calculation part calculates an estimated value of a resistance component of a system impedance of the power system, an estimated value of a reactance component of the system impedance, and an estimated value of a voltage value of the infinite bus power system based on an active power value of a connection point to the power system, a reactive power value of the connection point, and a voltage value of the connection point.
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公开(公告)号：US20240195175A1
公开(公告)日：2024-06-13
申请号：US18532955
申请日：2023-12-07
申请人： Adaptr, Inc.
发明人： Hassan SHAHRIAR , Amgad EL-DEIB
CPC分类号： H02J3/01 , B60L53/54 , H01M8/0289 , H01M8/188 , H02J3/322 , H02J3/38 , H01M2250/20 , H02J2300/26 , H02J2300/28
摘要： Embodiments described herein include systems and methods for managing electrical power among various energy generation, storage, and consumption systems, including micro-grids or nano-grids. Computing systems and electrical hardware send and receive electrical power, to or from various energy storage, transfer, and consumption sites, particularly where certain nano-grids are not electrically wired to the energy generation and storage subsystems. A grid adapter receives energy from various sources, reduces noise in the electrical waveform (e.g., harmonics), and determines an amount of power to deliver to nano-grids via electrical connections or delivery vehicles to achieve acceptable operation according to grid codes or other operational configurations. A storage system may include a flow battery that exchanges electricity, based on required power or surplus power, with delivery vehicles according to an electrolyte swap for the flow battery.
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公开(公告)号：US11984722B2
公开(公告)日：2024-05-14
申请号：US17864274
申请日：2022-07-13
申请人： Apparent Labs, LLC
发明人： Stefan Matan , Fred C. Horton , Frank P. Marrone
CPC分类号： H02J13/00028 , G01R11/48 , G05F1/66 , G06G7/635 , H02J3/00 , H02J3/01 , H02J3/1892 , H02J3/381 , H02J13/00 , H02J13/00034 , H02J2300/24 , H02J2310/12 , Y02E40/40 , Y02E40/70 , Y04S10/12
摘要： Distributed grid intelligence can enable a virtual power grid. Multiple consumer nodes can have local power sources, and be coupled to a same point of common coupling (PCC). The consumer nodes can be controlled by distributed control nodes at the consumer nodes. The control nodes control the distribution of power from the local power sources based on local power demand of each respective consumer node, and also based on distribution of power from the other respective control node. Thus, consumer nodes can share power generated locally, but operate independently without the need for central management or a central power plant.
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公开(公告)号：US20240146067A1
公开(公告)日：2024-05-02
申请号：US18279141
申请日：2022-03-03
发明人： Qiaodi Chen , Yu Yang , Jun Xu
CPC分类号： H02J3/38 , H02J3/001 , H02J3/01 , H02J2300/26
摘要： A rapid shutdown system and a method for controlling the rapid shutdown system are provided. A disturbance is applied to a direct-current side of an inverter in the rapid shutdown system only when the inverter does not meet a starting condition, i.e., before the inverter starts. Once meeting the starting condition, the inverter normally operates. A shutdown device in the rapid shutdown system determines its state by determining whether the electrical signal at its output end meets the preset condition, and switches itself on or off in response to its determination.
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公开(公告)号：US20240097449A1
公开(公告)日：2024-03-21
申请号：US18459691
申请日：2023-09-01
CPC分类号： H02J3/241 , H02H7/226 , H02J3/0012 , H02J3/00125 , H02J3/01
摘要： The present application discloses systems and methods related to protection of a reactor in an alternating current (AC) electric power system. In one embodiment, a system may include a protective action subsystem to implement a protective action based on identification of a fault condition associated with a reactor. A frequency determination subsystem may determine when a frequency of the AC voltage is outside of a range defined by a lower threshold and an upper threshold and may identify a change in the frequency associated with de-energization of a line in electrical communication with the reactor. A supervisory subsystem may restrain implementation of the protective action when the frequency is outside of the range or when the change in the frequency is associated with de-energization of the line in electrical communication with the reactor.
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7.发明公开公开(公告)号：US20230387688A1
公开(公告)日：2023-11-30
申请号：US18245901
申请日：2020-12-09
CPC分类号： H02J3/01 , H02J2300/10 , H02J3/241
摘要： The present technology, which is part of the field of electrical systems, more specifically electromechanical generators, establishes an interactive system for the permanent use of motor generators that can be implemented in residential areas or in small industries. The minimum components required are a generator (motor generator), a 250 A current transformer, a Tesla coil responsible for filtering harmonics, a switching system via a booster composed of transistors and relays to control the impedances and frequency of the network, and an inverter to ensure the correct frequency.
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公开(公告)号：US11804714B2
公开(公告)日：2023-10-31
申请号：US17487560
申请日：2021-09-28
摘要： A system for controlling and monitoring electrical energy loads includes a current transducer configured to monitor values of electrical current in the system, wherein neutral and ground lines are monitored via separate current transducers. Additionally, the system includes a centralized programmable logic controller (PLC) configured to receive measured values from the current transducer in real time and a local PLC configured to receive the measured values from the centralized PLC. Further, the local PLC periodically compares the measured values of the electrical energy with predetermined thresholds and automatically redistributes the electrical energy to electrical energy loads among three phases based on the comparison.
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公开(公告)号：US11784496B2
公开(公告)日：2023-10-10
申请号：US17543182
申请日：2021-12-06
申请人： Rajiv Kumar Varma
发明人： Rajiv Kumar Varma
CPC分类号： H02J3/388 , H02J3/01 , H02J3/1842 , H02J3/40 , H02J9/00 , H02M7/44 , Y02E10/56 , Y02E40/10 , Y02E40/20 , Y02E40/40
摘要： The invention provides a method and system for operating an inverter based distributed power generation source with energy storage system, as a Flexible AC Transmission System (FACTS) device—a STATCOM. The inverter based distributed power generation source can provide reactive power compensation, voltage regulation, damping enhancement, stability improvement and other benefits provided by FACTS devices. These STATCOM functions are provided when the said energy storage based distributed power generation source is doing at least one of: i) not exchanging active power with said power grid system, or ii) exchanging active power less than a maximum inverter capacity with said power grid system. The present invention thus provides a technological improvement that opens up a new set of applications and potential revenue earning opportunities for energy storage based distributed power generation sources other than simply from exchanging (injecting or absorbing) active power.
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公开(公告)号：US20230299659A1
公开(公告)日：2023-09-21
申请号：US18182610
申请日：2023-03-13
CPC分类号： H02M1/143 , H02J3/01 , H02J2300/28 , H02K21/16
摘要： An integrated multi-port generator-rectifier device includes multiple passive output ports provided from a plurality of passive-rectifier windings on a common, single magnetic structure. The passive-rectifier windings interact with a plurality of magnetic poles. Coils in the passive rectifier windings are serially connected. Each of the passive rectifier windings has a pitch as that is a fraction of magnet pole pitch and a pattern to magnetically decouple back emf phases of the separate rectifiers. The device further includes an active port provided by an active rectifier.
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