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公开(公告)号：US12040608B2
公开(公告)日：2024-07-16
申请号：US17718328
申请日：2022-04-12
申请人： Trameto Limited
CPC分类号： H02J1/12 , H02J3/46 , H02J7/00712 , H02J50/001 , H02M1/10 , H02M3/156 , H02M5/2935 , H02J2207/20
摘要： A power management apparatus 20 comprises a first energy harvesting input channel 21; a first energy storage element connection 25; an inductor connection 27; and a switching circuit 28. A controller 30 is configured to operate the switching circuit 28 to transfer energy between the first energy harvesting input channel 21 and the first energy storage element connection 25 by a sequence of energy transfer cycles. Each of the energy transfer cycles comprises an energise phase in which energy is transferred from the first energy harvesting input channel 21 to the inductor connection 25 for an energise time (tE) and a de-energise phase. The first energy harvesting input channel 21 is capable of receiving an AC electrical signal and a DC electrical signal. The controller 30 is configured to determine a type of an electrical signal received at the first energy harvesting input channel 21, where the type is one of an AC electrical signal and a DC electrical signal, and determine an energise time (tE) and a harvesting cycle period (tP) for the switching circuit 28 based on the determined type.
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公开(公告)号：US20240235199A1
公开(公告)日：2024-07-11
申请号：US18562983
申请日：2022-05-23
CPC分类号： H02J3/28 , H02J3/466 , G06Q50/06 , H02J2300/22 , H02J2300/28
摘要： A hybrid plant for producing electrical energy is configured to be connected to an electrical grid. The hybrid plant includes at least one programmable energy source; at least one energy storage assembly configured to selectively store or release electrical energy; and a control device configured to a control the energy storage assembly to selectively release a calculated reference integrating load when a programmable energy source reference load is lower than a plant net load reference value, or to store the calculated reference integrating load when the programmable energy source reference load is greater than the plant net load reference value.
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13.发明公开公开(公告)号：US20240222977A1
公开(公告)日：2024-07-04
申请号：US18558844
申请日：2022-04-25
发明人： Yu Kobayashi , Yusuke Yashiro , Masayuki Hashimoto
CPC分类号： H02J3/32 , G01R21/00 , H02J3/46 , H02J7/35 , H02J2300/24
摘要： Provided is a smoothing-target-value calculation device that is capable of calculating a smoothing target value with which it is possible to suppress battery degradation. The present invention provides a smoothing-target-value calculation device that calculates a smoothing target value, which is a target value for the sum of first power generated by a renewable-energy power generation system and second power charged into and discharged from a battery, the smoothing-target-value calculation device including: a predicted-value acquisition unit that acquires a predicted value for the first power; a predicted-value correction unit that corrects the predicted value; and a smoothing-target-value calculation unit that calculates a smoothing target value by smoothing the corrected predicted value.
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公开(公告)号：US20240222537A1
公开(公告)日：2024-07-04
申请号：US18607682
申请日：2024-03-18
CPC分类号： H01L31/0504 , H01L31/02008 , H02J3/46 , H02S50/10 , H02J2300/26 , H02S40/32
摘要： Aspects of the disclosure relate to static configurations and arrangement of substrings of photovoltaic (PV) cell arrays or PV modules to electrically parallelly connect substrings in PV cell arrays mitigating the partial shade and/or mismatch condition. Further aspects relate to PV modules comprising interleaved substrings. Additional aspects relate to incorporation of power electronics with PV modules and PV cell arrays.
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公开(公告)号：US12027849B2
公开(公告)日：2024-07-02
申请号：US15653049
申请日：2017-07-18
发明人： Meir Adest , Lior Handelsman , Yoav Galin , Amir Fishelov , Guy Sella , Yaron Binder
CPC分类号： H02J1/102 , H02J3/381 , H02J7/00 , H02J7/35 , H02J9/00 , H02J3/46 , H02J2300/24 , H02J2300/26 , Y02B10/10 , Y02E10/56
摘要： A distributed power system including multiple (DC) batteries each DC battery with positive and negative poles. Multiple power converters are coupled respectively to the DC batteries. Each power converter includes a first terminal, a second terminal, a third terminal and a fourth terminal. The first terminal is adapted for coupling to the positive pole. The second terminal is adapted for coupling to the negative pole. The power converter includes: (i) a control loop adapted for setting the voltage between or current through the first and second terminals, and (ii) a power conversion portion adapted to selectively either: convert power from said first and second terminals to said third and fourth terminals to discharge the battery connected thereto, or to convert power from the third and fourth terminals to the first and second terminals to charge the battery connected thereto. Each of the power converters is adapted for serial connection to at least one other power converter by connecting respectively the third and fourth terminals, thereby forming a serial string. A power controller is adapted for coupling to the serial string. The power controller includes a control part adapted to maintain current through or voltage across the serial string at a predetermined value.
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16.发明公开公开(公告)号：US20240213783A1
公开(公告)日：2024-06-27
申请号：US18393156
申请日：2023-12-21
发明人： Mingxuan Dong , Shuo Wang , Jie Chen , Wenchao Li , Mingquan Zhao , Kai Xin
CPC分类号： H02J3/381 , H02J3/32 , H02J3/46 , H02J2300/24
摘要： This application provides an inverter, a power grid power supply system, and a method for controlling an excitation inrush current. The controller adjusts the output voltage of the conversion circuit based on a first phase that is of the output voltage of the conversion circuit and that is during reduction of the output voltage, the magnetic flux of the iron core in the transformer, an output voltage that is of the conversion circuit and that is after the output voltage is reduced, and the target voltage value, so as to increase the output voltage of the conversion circuit and keep the magnetic flux of the iron core less than the saturation magnetic flux.
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公开(公告)号：US12009663B2
公开(公告)日：2024-06-11
申请号：US17771358
申请日：2020-08-05
申请人： Zhejiang University
发明人： Zheng Xu , Yingjie Tang , Zheren Zhang
摘要： The present disclosure discloses an offshore wind farm low-frequency alternating-current uncontrolled rectification electric power transmission system, comprising an onshore converter station and an offshore alternating-current system. The offshore alternating-current system comprises wind turbine generators, alternating-current submarine cables, a confluence bus, and offshore booster stations; the onshore converter station comprises a wind field side alternating-current bus, an alternating-current system side alternating-current bus, an alternating-current filter, an energy dissipation device, a rectifier, and a converter; the rectifier is composed of a three-phase six-pulse uncontrolled rectifier bridge, and the converter may be an MMC or an LCC; the rated frequency of the offshore alternating-current system is selected to be close to 10 Hz.
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公开(公告)号：US20240181914A1
公开(公告)日：2024-06-06
申请号：US18529890
申请日：2023-12-05
申请人： AUDI AG
发明人： Matthias SCHNEIDER
IPC分类号： B60L53/60 , B60L50/50 , B60L53/30 , B60L53/50 , B60L53/51 , B60L53/52 , B60L53/53 , H02J3/32 , H02J3/46
CPC分类号： B60L53/60 , B60L50/50 , B60L53/30 , B60L53/50 , B60L53/51 , B60L53/52 , B60L53/53 , H02J3/32 , H02J3/46 , H02J2300/24 , H02J2300/28
摘要： A charging system for charging of electrically powered vehicles is provided, which may comprise at least one charging unit, at least one solar module, and at least one wind generator, the wind generator configured to transform wind flow energy into electric energy and is directly or indirectly connected to the charging unit. The solar module may be situated above the wind generator in the vertical direction and the solar module and the wind generator may be arranged in or on a lifting unit, which may be movable with respect to a receiving unit in at least the vertical direction. A lift mechanism may be include, configured to move the lifting unit relative to the receiving unit. The disclosure furthermore relates to a charging station having a charging system.
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公开(公告)号：US11996691B2
公开(公告)日：2024-05-28
申请号：US17997836
申请日：2021-04-29
发明人： Jianzhong Wu , Chao Long
CPC分类号： H02J3/16 , H02J3/46 , H02J2300/24 , H02J2300/28
摘要： A method of controlling an electricity distribution network, wherein the electricity distribution network is a mesh network including a plurality of loads and there is a voltage-source converter connected to a point in the network. The method comprises, while using the voltage-source converter to try to hold the voltage magnitude constant at said point, establishing a record of how, at said point, the real power flowing between the network and the voltage-source converter varies with variation of the reactive power that the voltage-source converter causes to flow between itself and the network, using a reactive-power value, proportional to the sum of the reactive-power draws of the loads, in order to look up a real-power value from the record, and configuring the voltage-source converter to supply into the network at said point reactive and real power at said reactive- and real-power values, respectively.
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公开(公告)号：US11994110B2
公开(公告)日：2024-05-28
申请号：US17525568
申请日：2021-11-12
发明人： Johannes Brombach
CPC分类号： F03D7/048 , F03D7/047 , H02J3/46 , H02J2300/28
摘要： Provided is a method for controlling an electrical installation, in particular a wind power installation or a wind farm. The method includes determining a specific location within an electrical supply network to which the electrical installation is electrically connected via the electrical supply network, determining an electrical variable which maps an electrical distance between the electrical installation and the specific location and ascertaining a potential reactive power of the electrical installation for the specific location depending on the electrical variable which maps an electrical distance between the electrical installation and the specific location.
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