2728 results about "Power storage" patented technology

A structural assembly for an electric vehicle includes a vehicle frame, a battery structure, a pair of mounting structures, and a plurality of fasteners. The vehicle frame includes opposed longitudinal rails. The battery structure is disposed between the opposed longitudinal rails and includes a battery housing configured to house power storage units. Each mounting structure is secured to a respective side of the battery housing and supports a corresponding longitudinal rail. The plurality of fasteners extend through a corresponding mounting structure of the pair of mounting structures and a corresponding longitudinal rail of the opposed longitudinal rails to secure the vehicle frame and the battery structure to each other. An outer periphery of the corresponding mounting structure is substantially flush with an outer periphery of the corresponding longitudinal rail.

The invention belongs to the technical field of emergency power supply of power supply vehicles, and particularly discloses and provides an emergency power supply system of a large mobile storage and charging power supply vehicle, which comprises a vehicle-mounted energy storage unit, a power conversion unit, a PWM (Pulse Width Modulation) signal generation unit, a load monitoring unit and a control unit. The control unit determines a grid-connected mode or an off-grid mode by collecting the on-off state of a power grid and the total power of a load and calculating the power change rate. During grid connection, a voltage instantaneous value is monitored, and a power supply process is executed after locking cooperative control is triggered. Load impact components are identified and verified in the off-grid process, loads are cut off in a graded mode and cyclic verification is conducted if the load impact components do not pass or power exceeds the limit, and after the load impact components pass, time sequence graded loading control is executed according to the adjustment stage number determined by the load type and the proportion. According to the invention, flexible selection between grid connection and grid disconnection can be realized according to actual working conditions, the condition of single power supply mode is changed, the adaptive capacity to different scenes is improved, the real uninterruptible power supply requirement is met, and the impact load is precisely controlled.

The present disclosure relates to a battery system supporting a plurality of operation modes according to the SoC. To this end, the battery system is characterized by comprising: one or more batteries supporting multiple operation modes for power storage or supply according to the state of charge (SoC); and a controller which determines an operation mode of the batteries among the plurality of operation modes according to the power supply state of a grid and the SoC of the batteries, wherein the batteries include a battery supporting an uninterrupted power supply (UPS) mode at an SoC at or below a first standard.

The invention relates to the technical field of power dispatching, in particular to a photovoltaic power generation and energy storage electric cabinet power optimization distribution method based on artificial intelligence. Carrying out meteorological prediction to obtain a future meteorological data sequence in a future time window, and collecting a current operation moment; performing photovoltaic power generation prediction and power consumption demand prediction according to the future meteorological data sequence and the operation time to obtain a future power generation data sequence and a future power consumption data sequence; according to the operation time, analyzing the confidence of the future meteorological data sequence and the future power consumption data sequence, and obtaining a meteorological confidence sequence and a power consumption confidence sequence; according to the future power generation data sequence, the future power utilization data sequence, the meteorological confidence coefficient sequence and the power utilization confidence coefficient sequence, power distribution parameter configuration and optimization are carried out, optimized power distribution parameters are obtained, and power distribution power supply and power storage of the energy storage electric cabinet are carried out in a future time window. And the stability and the economical efficiency of the power system are obviously improved.

The present disclosure describes various embodiments directed at a weighing device with a power supply method for components within the weigh platter. It solves the issue of traditional electrical supply methods interfering with weight measurements by embedding an energy storage assembly within the weigh platter. This assembly supplies power to embedded subsystems when needed and recharges when possible, ensuring efficient power supply without disturbing the weighing process. The power transfer can be selectively controlled based on the weight detected or the reader's operational state. The device can be used in various configurations, extending beyond scales with data capture assemblies.

A casing material for a power storage device, including a laminate that includes, in order, at least a base material layer, a barrier layer, and a heat-fusible resin layer. The heat-fusible resin layer includes a single layer or a plurality of layers. The heat-fusible resin layer includes at least one layer having a hardness of at least 70 MPa from a cross-section in the lamination direction of the laminate, measured using a nanoindentation method using an indentation load of 100 μN.

The invention provides a power storage device and a current interruption method. A power storage device is provided with a power storage device module, a voltage sensor, a current sensor, an explosion fuse, and a controller. The voltage sensor detects a voltage value of the power storage device module. The current sensor detects a value of a current flowing through the power storage device module. The explosion fuse is connected in series with the power storage device module. In the controller, a voltage condition and a current condition are set. The voltage condition is predetermined according to a voltage value detected by the voltage sensor. The current condition is predetermined according to the current value detected by the current sensor. The controller operates the explosion fuse when both a voltage condition and a current condition are satisfied.

A measurement apparatus detects a voltage change in a power storage device. The measurement apparatus supplies constant current to the power storage device; measures voltage related to the power storage device supplied with the constant current; and detects the voltage change in the power storage device subjected to the measurement. The measurement apparatus also acquires the voltage change in the power storage device based on an electrical property serving as a reference of the power storage device.

A wiring module is directed to a wiring module configured to be attached to a plurality of power storage elements having electrode terminals. The wiring module includes: a plurality of busbar units: and wires connected to the busbar units. Each of the busbar units includes: a busbar connected to the electrode terminals; a circuit board; and a fixing means configured to fix the circuit board to the busbar. A conductive path is routed on the circuit board, and the conductive path includes: a connection land electrically connected to the busbar; and a wire land soldered to the corresponding wire. The busbar includes a crimping part that fixes the wire, and the wire is interposed between the crimping part and the circuit board.

A battery control circuit with a novel structure, a battery protection circuit with a novel structure, and a power storage device including either of the battery circuits are provided. The power storage device includes a first circuit portion, a second circuit portion, a third circuit portion, and a secondary battery; the first circuit portion has a function of controlling charging of the secondary battery; the first circuit portion has a function of supplying the start time and the end time of the charging of the secondary battery to the third circuit portion; the second circuit portion has functions of generating a first voltage and a first current and supplying them to the third circuit portion; the third circuit portion has a function of generating a second voltage by charging the first current in a capacitor; and the third circuit portion has a function of comparing the first voltage and the second voltage.

The invention relates to the technical field of virtual power plants, in particular to a highway micro-grid virtual power plant optimal scheduling method considering carbon emission, and the method comprises an energy management module which is used for managing and controlling an energy storage module, a charging base and a service area infrastructure; the virtual operation platform is used for coordinating and dispatching electric energy in the power grid and the electric power market; the energy management module is provided with a peak valley selection module, a power supplement module, a power storage module and a direct power supply module. Power is supplied to the service area infrastructure and the charging base through the direct power supply module in the power consumption valley period, and power is supplied to the service area infrastructure through the power storage module in the power consumption peak period; through peak-valley time-sharing power supply, intelligent scheduling and multiple protection, charging and discharging of the power storage module are reduced in the low ebb period, stable charging is guaranteed in the peak period, meanwhile, real-time monitoring and protection are achieved, the service life is prolonged, and energy consumption is reduced.

A power conversion device includes a power storage element, a power converter, and a control device. The control device includes: a power generator simulation unit to simulate characteristics of a synchronous power generator based on an active power command value and active power, to generate an angular frequency deviation; a constant setting unit to set at least one of an inertia constant and a damping constant of the synchronous power generator; a phase generation unit to generate a reference phase, based on the angular frequency deviation and a reference angular frequency; and a signal generation unit to generate a control signal, based on the reference phase and a reference voltage command value. When the AC voltage of the power system fluctuates, the constant setting unit sets at least one of the inertia constant and the damping constant such that active power to be inputted and outputted decreases.Buchanan

The invention relates to a contact resistance and state detection method for an electromagnetic switch device of a railway vehicle, and the method comprises the steps: injecting an AC signal into a to-be-detected contact of the electromagnetic switch device, and then collecting an AC voltage signal of the to-be-detected contact; calculating a first resistance value of the contact to be measured according to the acquired alternating current signal and the alternating voltage signal; and further comparing the resistance value obtained by detecting the contact to be detected with a pre-configured resistance scale value, and judging whether the contact to be detected is in a good state or not according to a comparison result. On-line detection of the contact resistance of the electromagnetic switch device can be realized, and on the basis, judgment of the electricity storage state can be realized, so that the working safety and reliability of equipment are improved.

A wiring module is attached to a plurality of power storage elements, and includes: a flexible printed circuit board; and a protector holding the flexible printed circuit board, wherein the flexible printed circuit board includes a base film, a plurality of conduction paths that are disposed on a surface of the base film, and a connector that has an opposing surface opposing the surface of the base film and that is connected to the plurality of conduction paths, the plurality of conduction paths and electrode terminals of the plurality of power storage elements are electrically connected, the connector includes connection portions that are connected to the plurality of conduction paths, and at least some of the plurality of conduction paths are routed from the connection portions through a space between the surface of the base film and the opposing surface of the connector.

A closed cycle power storage and generation system comprising compressed air storage J and liquefied air energy storage D, wherein air is compressed in a compressor A, before being cooled in a heat ex

A power storage device replacement system includes a charging device and a replacement device. The replacement device is configured to replace a power storage device of the target vehicle. The target vehicle includes a plurality of the power storage devices and a first switching circuit. The first switching circuit is configured to be capable of switching between a series state in which the power storage devices are connected in series and a parallel state in which the power storage devices are connected in parallel. In the power storage device replacement system, when a first power storage device and a second power storage device mounted on the target vehicle are replaced with a third power storage device and a fourth power storage device, the charging device performs charging of at least one of the third power storage device and the fourth power storage device before the replacement.

To provide a management system of a power storage device capable of reducing detection errors caused by noise when calculating the voltage of each storage cell included in a power storage device individually.SOLUTION: A system for managing a power storage device with a first cell and a second cell includes a voltage detection circuit. The voltage detection circuit includes: a first detector (detector 201) that detects the voltage of the first cell; and a second detector (detector 202) that detects the first total voltage corresponding to the sum of the voltage of the first cell and the voltage of the second cell. The system is configured to acquire the voltage of the second cell based on the value obtained by subtracting the detection result (voltage V1) by the first detector from the detection result (voltage V2) by the second detector.SELECTED DRAWING: Figure 4

The invention discloses a battery charging control method for a multi-port topology energy storage system, a processor, the multi-port topology energy storage system and a machine readable storage medium of the multi-port topology energy storage system, and relates to the technical field of battery energy storage optimization control. The method comprises the following steps: determining an internal resistance stable quantized value of each battery monomer in a preset period according to internal resistance fluctuation data of the battery monomer, and determining a temperature rise quantized value of the battery monomer in the preset period according to temperature change data of the battery monomer; the charging performance of each single battery is determined according to the internal resistance stable quantized value and the temperature rise quantized value of each single battery, the internal resistance stable quantized value is in positive correlation with the charging performance, and the temperature rise quantized value is in negative correlation with the charging performance; and distributing the current total power generation power of the plurality of power generation ports to each battery monomer according to the charging performance of the battery monomers of the plurality of power storage ports. According to the method, the current total power generation power of the plurality of power generation ports can be distributed more reasonably.

Various power units that couple with modular storage units are shown. In one example, a power unit includes a power storage device and one or more power outlet interfaces. One of the surfaces of the power unit includes a coupling mechanism that permits that power unit to couple with modular storage units. In one embodiment, the power unit includes a frame and wheels coupled to the frame to permit the power unit to be more easily transported.

The display system displays information on the vehicle including the switching circuit capable of switching the series connection / the parallel connection of the plurality of power storage devices. The display system includes a display device. The display device is configured to display an average SOC when a first condition is established, the average SOC indicating an average value of an SOC of each of the power storage devices, and the display device is configured to display a minimum SOC when a second condition is established, the minimum SOC indicating a smallest value among the SOCs of the power storage devices.

The invention discloses a novel wave-driven drifting buoy, and belongs to the field of wave energy utilization of an ocean new energy power generation technology. The drifting buoy comprises a spherical floating body assembly, a harvesting energy power generation device, an electric power storage assembly and a data collecting and monitoring system, the harvesting energy power generation device, the electric power storage assembly and the data collecting and monitoring system are installed in the floating body assembly, the floating body assembly is sealed and floats on the water surface, and the harvesting energy power generation device can efficiently convert six-degree-of-freedom motion generated by the floating body assembly under the action of wave energy into electric energy; the electric power storage assembly is used for storing electric energy of the harvesting energy power generation device and supplying the electric energy to external electric equipment, and the data acquisition monitoring system is used for monitoring and positioning the movement of the drifting buoy and feeding monitoring data and positioning information back to the control end. The drifting buoy solves the problems that an existing wave energy power generation device is insufficient in power generation capacity, large in voltage fluctuation range and insufficient in survivability under complex sea conditions due to high direction sensitivity and narrow-band response limitation, and reliability is reduced due to wave impact and salt spray corrosion.

The invention provides a virtual power plant optimization scheduling method, device and equipment based on multi-objective optimization. The method comprises the following steps: acquiring historical power consumption data of each user in a target virtual power plant; clustering the historical power consumption data to obtain a plurality of power consumption data clusters and a clustering center corresponding to each power consumption data cluster; based on the plurality of power consumption data clusters and the clustering center corresponding to each power consumption data cluster, determining the weight of each power consumption data cluster and the power consumption demand of the target virtual power plant at the future moment; obtaining a scheduling target value based on the power consumption demand, the power storage quantity of distributed energy storage of the target virtual power plant and the weight of each power consumption data cluster; and determining a scheduling scheme of the target virtual power plant at the future moment by taking the lowest cost of the target virtual power plant and the minimum influence of the target virtual power plant on the power grid as targets and taking the scheduling target value as a constraint. The optimization scheduling scheme can be obtained more accurately and quickly, the dependence of the target virtual power plant on the power grid is reduced, and the stability of the power grid is maintained.

A container with active temperature control system is provided. The active temperature control system is operated to heat or cool a chamber sized to receive a beverage therein. The container includes an insulated vessel that has the chamber and a cooling or heating unit. The cooling or heating unit includes a thermoelectric element in thermal communication with the chamber, phase change material in thermal communication with the thermoelectric element, a power storage device, and circuitry to control the operation of the thermoelectric element. The cooling or heating unit is operable to increase or decrease or maintain a temperature of the beverage in the chamber by operating the thermoelectric element to draw heat from the chamber and transfer it to the module of phase change material.

This invention relates to the field of energy storage technology and discloses a synchronous testing platform for multiple energy storage converters and its control method. The testing platform of this invention includes: an incoming line switch, a pre-charge circuit, a transformer, an auxiliary power supply switch, an AC circuit breaker, a DC circuit breaker, and a unit controller. The power grid is connected to the high-voltage side of the transformer sequentially through the incoming line switch and the pre-charge circuit. One side of the AC circuit breaker is connected to the windings on the low-voltage side of the transformer, and the other side is connected to the AC side of the energy storage converter. The DC side of the first group of energy storage converters is connected to the DC side of the second group of energy storage converters through DC circuit breakers. The first group of energy storage converters is connected to the auxiliary power supply. In this invention, after the first group of PCS (Power Storage Converters) is pre-charged, the pre-charge circuit is bypassed. Then, the first group of PCS is unlocked and controlled in DC voltage mode, and the second group of PCS is started sequentially, thereby achieving synchronous charging and discharging testing of 2N PCS, greatly improving the charging and discharging testing efficiency of the energy storage converter.

The battery rack includes: a plurality of battery modules; a rack case configured to store the plurality of battery modules; a control unit configured to control charging and discharging of the plurality of battery modules; a data storage unit including a cable configured to transmit data from the control unit and a data recording unit configured to store the data; and a storage unit including an accommodating case having an inside space for accommodating the data recording unit, a plurality of ventilation holes formed by opening a portion of the accommodating case so that the inside space and the outside are communicated with each other, and a cover portion that has a plate shape, is spaced apart from the plurality of ventilation holes by a predetermined interval, and is configured to cover the plurality of ventilation holes.

A power storage system includes a first battery including two power storages, and a switch unit which switches between two voltage states in series and in parallel, a three-phase motor having a neutral point, an inverter connected on a power transmission path between the first battery and the three-phase motor, a DC power supply circuit connected to a connection portion on a power transmission path between the inverter and the first battery, a branch circuit branched from the DC power supply circuit on a positive side thereof and connected to a coil of one phase in the three-phase motor, a capacitor, a pre-charge circuit connected to a power transmission path between the inverter and the first battery, a converter connected to the pre-charge circuit, and a second battery connected to the converter and having a voltage lower than voltages of the first battery in the two voltage states.

To provide a power storage device capable of suppressing rapid combustion inside a case after gas is discharged through a pressure release valve.SOLUTION: A power storage device 1 includes a plurality of first power storage stacks 110, a plurality of second power storage stacks 120, a case, a first pressure release valve 610, a second pressure release valve 620, a first respiratory membrane 710, and a second respiratory membrane 720. The case has a first accommodation chamber S10, a second accommodation chamber S20, and a partition wall 516 for partition. The first pressure release valve 610 and the first respiratory membrane 710 are provided in the first accommodation chamber S10 .The second pressure release valve 620 and the second respiratory membrane 720 are provided in the second accommodation chamber S20.SELECTED DRAWING: Figure 3

The invention discloses a battery thermal runaway protection device and an electric energy storage cabinet, and relates to the field of battery protection. By arranging the protection assembly, the battery which may be in danger can be quickly and reliably transferred out from the original position, the influence of the battery body which is in thermal runaway on the surrounding normal battery body is avoided, and a danger diffusion path is effectively cut off; a driving structure related to sliding of the explosion-proof box drives a rotating rod by means of a motor, and drives a positioning rod, a pushing strip and a pushing rod to move through meshing transmission of a driving gear and a fluted disc, so that the explosion-proof box is precisely pushed to slide in a through groove; when the thermal runaway battery body is transferred, the explosion-proof box can be timely moved to a proper position to receive the thermal runaway battery body, the whole process is quick in response and accurate in action, and the explosion-proof box is matched with a fixing groove and an internal structure for driving a tray to act, so that a complete and efficient battery thermal runaway protection mechanism is formed; and the coping capacity and the safety of the electric energy storage cabinet in the case of thermal runaway of the battery are greatly improved.

The invention relates to the technical field of electric power storage, and particularly discloses an electric power storage resource global collaborative management method and system, and the method comprises the steps: constructing an electric power professional warehouse data graph with an Internet of Things physical ID as a core node, the Internet of Things physical ID being a unique physical identifier of an electric power storage resource; associating material data of a safety supervision warehouse, a regulation and control warehouse and a logistics warehouse, and integrating key data entities of a safety tool verification system, a scheduling equipment management system and a work order management system; a unified data format and a data mapping rule are defined, and standardized interaction of cross-system heterogeneous data is achieved. According to the method, standardized real-time synchronization of cross-system data is realized by constructing a power professional warehouse data graph and relying on an internet of things entity ID active synchronization engine; by using a multi-dimensional rule engine, based on a professional warehouse type-material attribute-business scene three-dimensional rule base, accurate management and control are provided for warehouse-in, warehouse-in, warehouse-out and exception handling of materials, and the asset utilization efficiency is effectively improved.

The technology of the present disclosure generally relates to the field of power storage devices, and more specifically to a solid electrolyte, an electrode, a solid-state battery, and a method for producing the same. An aspect of the present disclosure relates to a process for producing a solid electrolyte, comprising the steps of: - contacting, in the presence of a catalyst: - a polymer precursor compound comprising polyethylene glycol (PEG) and / or polytetrahydrofuran (PTHF), wherein the polymer precursor compound comprises on average per polymer precursor molecule, -at least 2.0 alkoxysilyl functional groups, with a functionality of at least 2.0, preferably at least 2.5, preferably at least 3.0; and / or -at least 1.0 alkoxysilyl functional groups, with a functionality of at least 3.0; - optionally, an organo-tri-alkoxy silane, an organo-tetra-alkoxy silane, and / or a mixture thereof comprising a metal ion (M+) chelating moiety being a cyanurate, a crown ether, an aza-crown ether, a thia-crown ether, a cryptand, a carbamate, a cyano group, a thiocyanate group, or a metallacrown,, - a metal (M+) salt, preferably does the metal salt comprises Li+, Na+, Mg+, Ca+, Al+, and / or a combination thereof, preferably lithium (Li+); - a solvent, preferably an organic solvent; and, - optionally, an ionically conductive compound; thereby obtaining a solid electrolyte; - optionally, drying the obtained solid electrolyte.