Abstract: An energy coupling method for household energy storage includes: connecting an alternate current (AC) output from an electric vehicle (EV) to a household electricity grid through an AC-to-AC power converter capable of outputting a vehicle-to-load (V2L) AC power that is synchronized to the household electricity grid; in response to an outage of an electricity grid that supplies power to the household grid, turning on the AC-to-AC power converter to supply the V2L AC power to a household load connected to the household electricity grid; and in response to a recovery of the electricity grid, turning off the AC-to-AC power converter to stop outputting the V2L AC power.

Abstract: Provided are a 3Clpro protease inhibitor, a pharmaceutical composition containing the compound of formula (I), and a method for treating coronavirus by using the compound.

Abstract: The embodiment of the invention discloses a battery charging and discharging circuit, comprising: a battery module (1), configured to receive charging voltage or release discharging voltage; a transformer circuit (2), connected with the battery module (1), the transformer circuit (2) is configured to convert a first charging voltage into a charging voltage or convert a discharging voltage into a first discharging voltage; a buck-boost circuit (3), connected with the transformer circuit (2), the buck-boost circuit (3) is configured to convert a second charging voltage into the first charging voltage or convert the first discharging voltage into a second discharging voltage; a power grid end or user end (4), connected with the buck-boost circuit (3), the power grid end or user end (4) is configured to generate the second charging voltage or receive the second discharging voltage.

Abstract: The present application relates to a method for seamless switching between off-grid and grid-connected including: in a grid-connected state, when a host determines that utility power is abnormal, a grid-connected working mode is closed, a phase-locked source of the host is switched from the utility power to a self-oscillation state, the phase-locked source of the slave is switched to the self-oscillation state of the host, and phase-locking is performed, and an off-grid working mode is started after an input switch is turned off; in an off-grid state, when the host determines that the utility power is normal, the phase-locked source of the host is switched from the self-oscillation state to the utility power, and, the phase-locked source of the slave is switched to the utility power, and phase-locking is performed, and the grid-connected working mode is started after the input switch is turned on.

Abstract: Provided are a soft-start method, a power converter system, and a household energy storage system, which are applied to the field of household energy storage technology and are used to improve the soft-start effect of a full-bridge resonant converter. The method includes the following manners: A soft-start process is configured as multiple operating periods, and a duty cycle is adjusted in periods and gradually increases; and in the soft-start process, according to the conversion of the duty cycle, a voltage is slowly output, and the value of the output voltage is gradually increased, so that the operating current in the soft-start process can be effectively controlled, thereby reducing the voltage stress of a power switch transistor when the power switch transistor is hard turned off.

Abstract: A power fusion system, power supply device, and power supply system. The module comprises a control unit, at least one power conversion unit and a DC/AC unit; the power conversion unit is configured to convert current output by the power supply to DC; the DC/AC unit is connected with all installed power conversion units, and configured to convert DC output by one or more power conversion units into AC meeting power supply demand; the control unit can communicate with all installed power conversion units and DC/AC unit, and is configured to control operation of the power conversion unit and DC/AC unit. The power fusion system can convert current output by one or more power supply modules into AC meeting the demand, so as to supply power to the load corresponding to the demand and can supply power cooperatively to improve matching degree and adaptability of power supply.

Abstract: The present invention provides a magnetic resonance compatible robot system, which belongs to the technical field of medical robots. The robot system comprises a robot body, a control cabinet and cables, the control cabinet is used for controlling the operation of the robot body via the cables, and the robot body comprises motors and encoders, each of which is externally provided with an insulation film, a metal shielding layer and an insulation shell in sequence. The processing scheme of the present disclosure can improve the compatibility of the robot system with the MRI system and greatly reduce noise and artifacts on MRI images, so as to realize real-time image-guided interventional surgery.

Abstract: The present application discloses a multi-port energy storage battery. The multi-port energy storage battery comprises a battery case including a first port, a second port and a third port; a battery module, including a first interface, the first interface is connected to the first port, the battery module is configured to connect an external power supply module via the first port and first interface, so as to charge the battery module; a DC-DC converter, including a second interface and a third interface, the second interface is connected with the first interface, and the third interface is connected with the second port, the DC-DC converter is configured to boost battery voltage to a DC high voltage and then output it through the second port; a DC-AC converter, including a fourth interface and a fifth interface, the fourth interface is connected with the first interface, the fifth interface and the third port.

Abstract: Provided is a generator access system for household energy storage. The generator access system for household energy storage includes an automatic transfer switch (ATS), an energy gateway, an energy storage system, and a load access switching module. The ATS is configured to be connected to a generator and achieve the control decoupling of the ATS from the generator. The energy gateway is connected to the ATS and configured to indirectly control coupling of the energy gateway and the generator and decoupling of the generator from the energy gateway by controlling the ATS. The energy storage system is connected to the energy gateway and includes at least one energy storage module configured to store electrical energy. The load access switching module is connected to the energy gateway and configured to control the number of connected loads.

Abstract: A multi-source coupling system for household energy storage includes an energy gateway configured to control coupling and decoupling of different power sources; an energy storage system coupled to the energy gateway and configured to store electrical energy; and a power conversion system coupled to the energy gateway and configured to convert the different power sources into current sources or voltage sources.

Abstract: A method for fixing an electronic component pin is provided, and relates to the technical field of printed circuit board assembly (PCBA), for improving the soldering effect of the electronic component in being soldered. The method includes performing bending treatment on a pin of an electronic component; performing stress relieving forming to the pin after being subjected to the bending treatment; placing the electronic component after being subjected to the stress relieving forming in a height-controlling support jig, where the distance between the electronic component and a circuit board is defined by the height-controlling support jig; mounting the height-controlling support jig, in which the electronic component is placed, in a corresponding position of the electronic component on the circuit board; and soldering the electronic component onto the circuit board.

Abstract: The present application relates to a method for seamless switching between off-grid and grid-connected including: in a grid-connected state, when a host determines that utility power is abnormal, a grid-connected working mode is closed, a phase-locked source of the host is switched from the utility power to a self-oscillation state, the phase-locked source of the slave is switched to the self-oscillation state of the host, and phase-locking is performed, and an off-grid working mode is started after an input switch is turned off; in an off-grid state, when the host determines that the utility power is normal, the phase-locked source of the host is switched from the self-oscillation state to the utility power, and, the phase-locked source of the slave is switched to the utility power, and phase-locking is performed, and the grid-connected working mode is started after the input switch is turned on.

Abstract: A quality control system for a qPCR receives signals resulting from operation of the qPCR system on an assay, and applies labeled data sets to a Support Vector Machine (SVM) to generate classifications for the signals to generate classifications that are utilized as operational feedback to the qPCR system.

Abstract: Provided are a soft-start method, a power converter system, and a household energy storage system, which are applied to the field of household energy storage technology and are used to improve the soft-start effect of a full-bridge resonant converter. The method includes the following manners: A soft-start process is configured as multiple operating periods, and a duty cycle is adjusted in periods and gradually increases; and in the soft-start process, according to the conversion of the duty cycle, a voltage is slowly output, and the value of the output voltage is gradually increased, so that the operating current in the soft-start process can be effectively controlled, thereby reducing the voltage stress of a power switch transistor when the power switch transistor is hard turned off.

Abstract: Provided are a household energy storage system in an off-grid state and a black start method therefor. The method includes: in response to detecting that a battery system is discharged to a SOC of less than or equal to a set value M, sending, by a BMS, a state of the battery system to an EMS; sending, by the EMS, timing starting time T1 and black start time T2 to the BMS; starting, by the BMS, timing from T1 and after a time T, instructing the battery system to stop working such that the household energy storage system enters a sleep mode; in response to performing timing to T2, waking, by the BMS, an auxiliary power supply up for power supply to the EMS; and in response to detecting that the battery system is in a charging state, determining, by the EMS, that a black start succeeds.

Abstract: A method for estimating a state of health (SOH) of a battery pack includes estimating a number of charge and discharge cycles of the battery pack; calculating a first SOH of the battery pack by using the number of charge and discharge cycles; calculating a number of service years of the battery pack; calculating a second SOH of the battery pack by using the number of service years; calculating a limit discharge capacity of the battery pack; calculating a third SOH of the battery pack by using the limit discharge capacity; and comparing a value of the first SOH, a value of the second SOH, and a value of the third SOH and taking a minimum value as the SOH of the battery pack.

Abstract: The present application discloses a multi-port energy storage battery and a multi-port energy storage battery pack. The multi-port energy storage battery includes: a first port, a second port and a third port, where the first port is a 48V DC voltage port, the second port is a 400V DC voltage port, and the third port is a 120/240V AC voltage port; a battery module, including a first interface, the first interface is coupled to the first port, the battery module provides 48V DC current; a bidirectional integrated converter, operating in a DC-DC converting mode, a AC-DC converting mode or a DC-AC converting mode, where the bidirectional integrated converter is respectively connected to the first port, the second port, and the third port, and one of the first port, the second port, and the third port is connected to external power supply.

Abstract: Provided are an energy conversion management system and method. The energy conversion management system includes a battery module, a battery management module, a power control module, and a telemetry terminal connected to the battery management module and the power control module respectively. The battery management module is configured to perform information acquisition, control and data management on the battery module, transmit battery information to the telemetry terminal, and receive the feedback information from the telemetry terminal. The power control module is configured to control the charging power and discharging power of the battery module according to the control instruction of the battery management module and the control instruction of the telemetry terminal. The telemetry terminal is configured to perform data interaction with a user and control the battery management module and the power control module according to a user instruction.

Abstract: The invention provides compounds, methods, and pharmaceutical compositions for reducing the amount or activity of Apolipoprotein E (ApoE) mRNA, and in certain embodiments reducing the amount of ApoE protein in a cell or animal, wherein reducing the amount or activity of ApoE would be beneficial.

Abstract: The invention provides compounds, methods, and pharmaceutical compositions for reducing the amount or activity of N-acylsphingosine amidohydrolase (acid ceramidase) 1 (ASAH1) mRNA, and in certain embodiments reducing the amount of ASAH1 protein in a cell or animal, wherein reducing the amount or activity of ASAH1 would be beneficial.