Abstract: The present disclosure provides a method (100) in a terminal device. The method (100) includes: transmitting (110) to a Network Exposure Function, NEF, node a Quality of Service, QoS, request including an Internet Protocol, IP, address of the terminal device and information enabling the NEF node to determine an identifier of the terminal device.

Abstract: A large-scale proton exchange membrane fuel cell power station process system includes a distributed cell stack module, a modular fuel supply system, a modular oxidant supply system, a modular cooling system, a power transmission and inverter system, and a power station master system. The distributed cell stack module is a power station core power generation device, the modular fuel supply system serves as a fuel supply system for the distributed cell stack module, and the modular oxidant supply system serves as an oxidant supply system for the distributed cell stack module; the modular cooling system performs cooling and heat exchange of the distributed cell stack module, the power transmission and inverter system converts, transmits and allocates a power of the distributed cell stack module, and the power station master system controls and manages each of the systems and the modules. The process system is unattended during peak electricity consumption.

Abstract: This disclosure provides an energy storage apparatus, an energy storage apparatus control method, and a photovoltaic system. The energy storage apparatus includes: a plurality of battery clusters, a plurality of conversion units, a start unit, and a controller. The controller includes a plurality of control units. The start unit is configured to: after receiving a start signal, control a control switch in at least one battery cluster to close, to start a control unit corresponding to the battery cluster. The control unit is configured to: determine, based on a state of the control switch in the battery cluster, whether a black start mode is on; and when determining that the black start mode is on, control a DC-DC converter in the corresponding conversion unit to release electric energy stored in a battery pack in the corresponding battery cluster, to energize a direct current bus.

Abstract: The present disclosure provides a method (100) in a terminal device. The method (100) includes: transmitting (110) to a Network Exposure Function, NEF, node a Quality of Service, QoS, request including an Internet Protocol, IP, address of the terminal device and information enabling the NEF node to determine an identifier of the terminal device.

Abstract: A power supply system includes a power conditioning apparatus, a transformer, and a controller. The power conditioning apparatus includes an inverter circuit, at least one grid-connected switch, a voltage-to-ground detector. The inverter circuit is configured to connect to the inverter circuit is configured to connect to the transformer through the at least one grid-connected switch, and the transformer is configured to connect to a power grid. When one grid-connected switch is turned off and turned on, the voltage-to-ground detector detects voltage to grounds of the power conditioning apparatus to obtain a first voltage value and a second voltage value respectively. The controller outputs alarm information for grounding of a neutral wire of the transformer or controls the power conditioning apparatus to stop working when a difference between the second voltage value and the first voltage value falls within a preset voltage range.

Abstract: An energy storage system, to improve operating efficiency and system reliability that exist when a component in the energy storage system is faulty, and avoid a waste of resources. The energy storage system includes a plurality of energy storage branches, at least one switch unit, and a control circuit. Each of the energy storage branches includes a first bus, a string-level converter, and a battery string that are sequentially connected in series, a plurality of balancing converters, and a shared bus. The battery string includes a plurality of battery units connected in series, and each of the battery units includes one battery pack. The battery pack is connected to an input side of one corresponding balancing converter, and output sides of the plurality of balancing converters are separately connected to the shared bus.

Abstract: An energy storage system and a method for controlling the energy storage system, includes a plurality of energy storage units. The energy storage unit includes a plurality of battery cells, a plurality of balancing units, a voltage conversion unit, a first switch, a second switch, and a control unit. The control unit is configured to detect fault cases of the plurality of battery cells, and control open and closed states of the first switch and the second switch. According to the application, it can be ensured that each energy storage unit in the energy storage system can continuously work when a battery cell is faulty and when state of charge balance between battery cells is implemented, thereby greatly improving reliability of the energy storage system with low costs.

Abstract: This disclosure provides an energy storage apparatus, an energy storage apparatus control method, and a photovoltaic system. The energy storage apparatus includes: a plurality of battery clusters, a plurality of conversion units, a start unit, and a controller. The controller includes a plurality of control units. The start unit is configured to: after receiving a start signal, control a control switch in at least one battery cluster to close, to start a control unit corresponding to the battery cluster. The control unit is configured to: determine, based on a state of the control switch in the battery cluster, whether a black start mode is on; and when determining that the black start mode is on, control a DC-DC converter in the corresponding conversion unit to release electric energy stored in a battery pack in the corresponding battery cluster, to energize a direct current bus.

Abstract: An instrumented trail-making task (iTMT) platform includes a wearable sensor and interactive interface technology configured to identify cognitive-cognitive impairment in individuals such as older adults. The iTMT platform may be programmed with neuropsychological tests for assessing individuals. The iTMT may provide information on visual search, scanning, speed of processing, mental flexibility, and/or executive functions as well as physical biomarkers of motor performance including slowness, weakness, exclusion, and/or motor planning error. Results of tests administered by the iTMT system may be reported to a patient or caregiver and used in identifying cogni-tive-motor impairment among individuals suffering from cognitive impairment, dementia, and/or those with frailty status, and/or cognitive frailty, and/or high risk of falling, and/or high likelihood of decline in cognitive-motor over time.

Abstract: An energy storage system includes one or more energy storage unit clusters, and the energy storage unit cluster includes at least two energy storage modules connected in series. The energy storage system further includes a first bus, a second bus, and a centralized monitoring system of the energy storage unit cluster, where the second bus is a direct current bus. The energy storage unit cluster is coupled to the first bus by using a first converter. One energy storage module includes one energy storage element group and one DC/DC converter, and the energy storage element group is coupled to the second bus by using the DC/DC converter. The centralized monitoring system is connected to the energy storage unit cluster through a control bus, and is configured to control a DC/DC converter in any energy storage module in the energy storage unit cluster.

Abstract: This disclosure provides an energy storage apparatus, an energy storage apparatus control method, and a photovoltaic system. The energy storage apparatus includes: a plurality of battery clusters, a plurality of conversion units, a start unit, and a controller. The controller includes a plurality of control units. The start unit is configured to: after receiving a start signal, control a control switch in at least one battery cluster to close, to start a control unit corresponding to the battery cluster. The control unit is configured to: determine, based on a state of the control switch in the battery cluster, whether a black start mode is on; and when determining that the black start mode is on, control a DC-DC converter in the corresponding conversion unit to release electric energy stored in a battery pack in the corresponding battery cluster, to energize a direct current bus.

Abstract: A battery system comprises a first busbar, at least one battery rack, and a control circuit are included. The battery rack includes a plurality of battery units. Each battery unit includes a battery module, a connection switch K1, and an isolation switch K2. The connection switch K1 is connected in series to the battery module to form a first branch, and the isolation switch K2 is connected in parallel to the first branch. The control circuit is connected to control ends of the connection switch K1 and the isolation switch K2, and is configured to: control, based on a first voltage required by the load, connection switches K1 and isolation switches K2 of N battery units in the battery rack, to make an output voltage of the first busbar meet the first voltage required by the load.

Abstract: A method for controlling an energy storage system includes: determining that a first battery cluster in a plurality of battery clusters needs to be calibrated; and controlling, based on a state of charge SOC of the first battery cluster and a current charging or discharging state of the energy storage system, the first battery cluster to be charged or discharged or to be in a standby state, so that the first battery cluster satisfies a SOC calibration condition. In the method, charging, discharging, or standby-state control needs to be performed on only one battery cluster that needs to be calibrated in the energy storage system, independent decoupling management is implemented on the battery cluster, and normal running of the energy storage system is not affected. This enables the battery cluster to quickly satisfy the SOC calibration condition and can improve SOC accuracy of the energy storage system.

Abstract: An energy storage system includes a battery cluster, a direct current converter, a controller, and at least one power conversion system. The energy storage system includes at least one direct current branch. The direct current branch includes a battery cluster and a direct current converter that are connected to each other. The direct current converter performs direct current conversion on a direct current provided by the battery cluster. Each battery cluster includes at least two energy storage modules that are connected in series. The controller controls the first equalization circuit, to balance electricity quantities of battery modules in the battery cluster, and allocates operating power to the power conversion system and the direct current converter. In this solution, impact of bucket effect on the energy storage system is reduced, so that a battery capacity can be more fully utilized.

Abstract: A photovoltaic energy system and a method for detecting a ground insulation impedance, improve accuracy of detecting a ground insulation impedance after one or more conversion circuits are connected in parallel. The photovoltaic energy system includes one or more conversion circuits and a detection circuit. The detection circuit includes an alternating current signal source and a sampling resistor that are connected in series, a first sampling circuit, and a control circuit. The control circuit is configured to control the alternating current signal source to output harmonic signals of a first frequency and a second frequency. The first sampling circuit is configured to: when the alternating current signal source outputs the harmonic signal of the first frequency, collect a voltage at both terminals of the sampling resistor to obtain a first voltage.

Abstract: An energy system mainly includes a charging and discharging control apparatus and an energy storage battery. When a battery level is not greater than a discharging level threshold and a charging current of the energy storage battery is less than a charging current threshold, the charging and discharging control apparatus may control the energy storage battery to stop charging and discharging. When the battery level is not less than a charging level threshold and a discharging current of the energy storage battery is less than a discharging current threshold, the charging and discharging control apparatus may also control the energy storage battery to stop charging and discharging.

Abstract: System and method for alarm processing are provided. The system may include a plurality of security devices. The plurality of security devices may be divided into at least one group. One group of the at least one group may include a first security device and one or more second security devices. The first security device may receive, from the one or more second security devices, one or more first alarms generated by the one or more second security devices. The first security device may determine that an alarm condition is satisfied based at least on one of the one or more first alarms and one or more second alarms generated by the first security device. The first security device may send, based on the determination, at least one of the one or more first alarms and the one or more second alarms to a user terminal.

Abstract: The invention described herein provides neutralizing antibodies against SARS-CoV-2 antigens (such as the S1 subunit of the S antigen) for use in treating human patients having COVID-19.

Abstract: This application provides an energy storage system including at least one energy storage unit cluster and a centralized monitoring system of the energy storage unit cluster. The energy storage unit cluster including at least two energy storage modules. A first energy storage unit cluster includes an energy storage element group and a switch bridge arm, the switch bridge arm including a master control switch and a bypass switch. The energy storage unit cluster is coupled to a direct current (DC) busbar through a DC/DC converter. The centralized monitoring system is connected to the energy storage unit cluster through a control bus and is configured to control the master control switch and the bypass switch of any energy storage module in the energy storage unit cluster to be on or off.

Abstract: An energy storage system and a control method thereof, so that a voltage level of an energy storage module in the energy storage system can be flexibly matched and the energy storage module can be effectively controlled based on a voltage of a direct current bus, to implement a high response speed. The energy storage system includes a plurality of energy storage modules, and each of the plurality of energy storage modules is connected to the direct current bus. The energy storage module includes a plurality of battery clusters and a plurality of first direct current-direct current converters. The battery cluster is configured to provide a direct current to the first direct current-direct current converter, or store a direct current transmitted by the first direct current-direct current converter.