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公开(公告)号：US20240275172A1
公开(公告)日：2024-08-15
申请号：US18568820
申请日：2021-07-08
Applicant: ALTENERGY POWER SYSTEM INC.
Inventor： Yuhao LUO , Dongming ZHOU , Fei SHEN , Xuan ZHU , Xiao LU , Guowei MIAO , Wenwei LI
CPC classification number: H02J3/38 , H02J3/001 , H02J3/007 , H02J2300/24
Abstract: A method and an apparatus for controlling a shutoff device, and a shutoff device. The method is applied to a processor of the shutoff device. The method includes: determining whether a heartbeat signal is received continuously during a first preset period; if so, controlling the N main switching transistors to be turned on, and determining whether the heartbeat signal is not received continuously during a second preset period; and if so, controlling the N main switching transistors to be turned off, and controlling the release circuit to be turned on to release a voltage on the bus. A release circuit is controlled to release voltage on the bus to the ground, thereby rapidly reducing the voltage on the bus, avoiding person danger and safety accidents caused by the long-term presence of the direct current high voltage on the bus, and improving the safety and reliability of a photovoltaic system.
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公开(公告)号：US20240088833A1
公开(公告)日：2024-03-14
申请号：US18273442
申请日：2022-01-17
Applicant: ALTENERGY POWER SYSTEM INC.
Inventor： Yuhao LUO , Dongming ZHOU , Xuan ZHU
Abstract: Provided is a detection apparatus for a photovoltaic component, including a detection device and a control device. An input terminal of the detection device is connected to an output terminal of the breaking device. The detection device is configured to detect, based on at least one of a voltage and a current outputted from the photovoltaic component, whether the photovoltaic component and a connection circuit for the photovoltaic component operate normally. The control device is connected with the breaking device and the detection device. The control device is configured to control to switch on the breaking device, to transmit the at least one of a voltage and a current outputted from the photovoltaic component to the detection device.
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Patent Agency Ranking
公开(公告)号：US20240275306A1
公开(公告)日：2024-08-15
申请号：US18563421
申请日：2022-04-02
Applicant: ALTENERGY POWER SYSTEM INC.
Inventor： Dongming ZHOU , Yongchun YANG , Biaojie QI , Yuhao LUO , Kaifeng JIN
IPC: H02M7/5387 , H02M1/12 , H02M1/32
CPC classification number: H02M7/53871 , H02M1/126 , H02M1/32
Abstract: A micro-inverter and a grid-tied output control method and device therefor. The micro-inverter comprises an inverter full-bridge circuit and an LC filter circuit. The LC filter circuit is grid-tied to a power grid by means of an output switch. The method comprises: obtaining a voltage amplitude, a frequency, and a phase of a voltage of the power grid by using phase locking; adjusting a power switching transistor driving the inverter full-bridge circuit to cause an output voltage of the micro-inverter to track the voltage of the power grid; and controlling the output switch to be switched on so that the micro-inverter operates normally. In the present application, before the output switch is turned off to grid-tie the micro-inverter, the power grid voltage is phase-locked and the output voltage of the micro-inverter is controlled to track the power grid voltage.
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4.发明申请公开(公告)号：US20140132076A1
公开(公告)日：2014-05-15
申请号：US14160478
申请日：2014-01-21
Applicant: Altenergy Power System, Inc.
Inventor： Yuhao Luo , Dongming ZHOU
IPC: H02M7/42
CPC classification number: H02M7/42 , H02J3/26 , H02M7/493 , H02M2001/0032 , Y02B70/16 , Y02E10/56 , Y02E40/50 , Y10T307/707
Abstract: The invention provides a solar photovoltaic three-phase micro-inverter system comprising a plurality of three-phase micro-inverters. Every three of the three-phase micro-inverters form a group and are coupled to a three-phase AC power grid. Each of the three-phase micro-inverters comprises 3 single-phase inverter circuits, each of the single-phase inverter circuits comprises 2 conversion circuits, and each of the conversion circuits corresponds to one phase of the three-phase AC power grid. AC outputs of the same conversion circuits of the three micro-inverters in one group are coupled to three-phase live wires of the three-phase AC power grid respectively. Accordingly, the invention provides a method for improving conversion efficiency of the solar photovoltaic three-phase micro-inverter system.
Abstract translation: 本发明提供一种包括多个三相微逆变器的太阳能光伏三相微逆变器系统。 三相微逆变器中的每三个组成一组并耦合到三相交流电网。 每个三相微逆变器包括3个单相逆变器电路，每个单相逆变器电路包括2个转换电路，并且每个转换电路对应于三相交流电网的一相。 一组三个微逆变器的相同转换电路的交流输出分别耦合到三相交流电网的三相带电线。 因此，本发明提供了一种提高太阳能光伏三相微逆变器系统的转换效率的方法。
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公开(公告)号：US20250015755A1
公开(公告)日：2025-01-09
申请号：US18711630
申请日：2022-04-29
Applicant: ALTENERGY POWER SYSTEM INC.
Inventor： Dongming ZHOU , Yuhao LUO
IPC: H02S40/34
Abstract: A photovoltaic solar assembly and a switching method therefor. The photovoltaic solar assembly includes an execution junction box, a single master control junction box, and a plurality of solar cell strings that are connected in series; the execution junction box includes a corresponding bypass diode; the master control junction box includes a corresponding bypass diode and a control assembly, and the control assembly is merely arranged in the master control junction box; the solar cell strings are connected in series with each other by means of the corresponding bypass diode of the execution junction box or the corresponding bypass diode of the master control junction box; and the control assembly is used for controlling connection and disconnection between the solar cell strings and a main power circuit.
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公开(公告)号：US20240405570A1
公开(公告)日：2024-12-05
申请号：US18699309
申请日：2022-02-23
Applicant: ALTENERGY POWER SYSTEM INC.
Inventor： Kaifeng JIN , Dongming ZHOU , Yuhao LUO
IPC: H02J3/46
Abstract: A method and a device for a current source to respond, and a computer-readable storage medium are provided. Parallel control for the current source and a voltage source is established, and a voltage across an alternating-current bus is acquired. When the voltage is lower than a first threshold, the current source outputs a current to increase the voltage across the alternating-current bus. Then, it is determined whether the voltage exceeds a second threshold. When the voltage exceeds the second threshold, the current source stops outputting the current. When the voltage does not exceed the second threshold, power is distributed between the current source and the voltage source after power synchronization. The current source directly outputs the current, and therefore unnecessarily wait for the power from the voltage source.
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公开(公告)号：US20240275159A1
公开(公告)日：2024-08-15
申请号：US18568821
申请日：2021-07-08
Inventor： Dongming ZHOU , Yuhao LUO , Xiao LU , Fei SHEN , Xuan ZHU
CPC classification number: H02H3/08 , G06F1/30 , H02H1/0007
Abstract: A method and an apparatus for controlling a shutoff device, and a shutoff device. The shutoff device includes N main switching transistors and N bypass switching transistors. The method includes: controlling the N main switching transistors to be turned on after receiving a heartbeat signal; determining whether a power supply voltage of a processor is less than a first under-voltage protection voltage; and if so, controlling the N main switching transistors to be turned off, and controlling the N bypass switching transistors to be turned on. Thus, N photovoltaic modules and N main switching transistors corresponding to a shutoff device are separated from multiple photovoltaic module groups, so that the photovoltaic module groups corresponding to other shutoff devices can normally output DC voltage to an inverter, and the inverter can normally output AC power for integration into a power grid, thereby ensuring the normal operation of the photovoltaic system.
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