1210 results about "Electrical energy storage" patented technology

An energy storage floor assembly for a motor vehicle having an electric drive includes an electrical energy storage device accommodated in a storage housing and arranged on the bottom side of a vehicle floor. At least one longitudinal beam is arranged within the storage housing. The front end of the longitudinal beam, viewed in the vehicle direction, is connected at least indirectly to a crossbeam component which is arranged in the region of a front-end structure and to which a front axle carrier is also attached. A load transfer element is installed between a rearward region of the front axle carrier and the front end of the longitudinal beam, which load transfer element has a front support region on the front end thereof and a rear support region on the rear end thereof. In an event of an accident-induced backward movement of the axle carrier as a result of a collision, the axle carrier can be supported on the front support region of the load transfer element, the rear support region of which can be supported at least indirectly on the longitudinal beam.

The invention discloses an energy efficiency improving method and device for a slope type gravity energy storage system, and relates to the technical field of electric energy storage systems. The method and device for improving the energy efficiency of the slope type gravity energy storage system comprise the following steps that S1, energy storage operation data are obtained through multi-source sensor fusion, and data cleaning and normalization processing are conducted on the energy storage operation data; s2, extracting a multi-dimensional state factor, carrying out quantitative evaluation on the operation state of the energy storage unit, constructing a state grading mechanism based on an evaluation result, and generating an operation state label; s3, calling a running state label to screen candidate units, constructing a scheduling priority ranking index, and dynamically allocating tasks and adjusting an execution sequence according to the index; and S4, analyzing structural wear and energy consumption load characteristics, establishing a scheduling correction mechanism, and dynamically adjusting a scheduling priority ranking index. The problem that the scheduling self-adaption cannot be realized according to the load, loss and wear difference of each unit in the parallel operation process of a plurality of energy storage units is solved.

The invention relates to the technical field of electric energy storage systems, and discloses an electric energy storage system hierarchical cooperative control method based on source-load-storage dynamic matching, and the method comprises the steps: obtaining a common connection point voltage sampling sequence, and calculating a second-order change rate; collecting the first-order change rate of the output current of the energy storage converter and determining a polarization constraint coefficient; switching a control mode according to a second-order change rate magnitude and a polarization constraint coefficient symbol, and utilizing a dynamic damping factor to constrain a duty ratio to adjust a step length; the dynamic damping factor is adjusted and increased when the polarization constraint coefficient exceeds a threshold value under the excitation and transformation state, so that the change rate of the output current is within the charge diffusion safety domain of the storage medium, dynamic damping is guided to implement asymmetric constraint through cooperation of trend pre-judgment and polarization stress identification, the output current is made to adapt to the charge diffusion limit, the switching frequency of the converter is reduced, and the stability of the converter is improved. Active substance precipitation is inhibited; and the total throughput of the equipment in the full life cycle is improved.

A road construction machine in the form of a road paver or a feeder vehicle for conveying paving material to a road paver, the road construction machine being self-propelled and having a primary drive source, a hopper, at least one working unit and at least one electric consumer for heating the working unit, the road construction machine having an energy supply system with at least one electrical energy storage which can be charged by means of electric current generated outside the road construction machine and is present on the road construction machine as an internal power source for direct current supply to the electric consumer. Furthermore, the disclosure relates to the use of such an energy storage for direct current supply to an electric consumer of a road construction machine.

The invention relates to the technical field of ship electric energy storage, and discloses a ship distributed electric energy storage and distribution balance control system which comprises a plurality of distributed storage units, a direct current bus, a plurality of power conversion modules and a dynamic balance control module. The dynamic balance control module is used for collecting the voltage deviation value of the direct current bus and the current response rate and the charge state parameter of each storage unit and determining a transient charge deviation compensation value, and the system determines the transient power flux of each node according to the current response rate and the charge state parameter. And dynamic linear calibration of feedback gain is realized based on the charge deviation compensation value so as to adjust the power output flow rate of each storage unit, the charge throughput of the direct current bus is balanced through real-time hedging of the surplus or deficient state of the transient charge of the bus, voltage oscillation during ship propulsion load switching is effectively inhibited, and the reliability of the ship propulsion load switching is improved. And the transient stability of the bus voltage is maintained.

A cell module for an electrical energy storage device of a motor vehicle includes at least one cell structure made up of energy storage cells, a metallic cell module frame, enclosing the at least one cell structure, for clamping the energy storage cells, and a measuring device for detecting a deformation of the cell module frame related to cell expansion. The measuring device includes a passive resistive extension sensor having a deformation-dependent electrical resistance and a measuring unit connected to the extension sensor to output an electrical measurement signal characterizing the deformation-dependent electrical resistance of the extension sensor. The extension sensor is formed by the metallic cell module frame, with which the measuring unit is electrically contacted.

The invention discloses a multi-element energy storage system anti-disturbance cooperative control method and system and a medium, and the method comprises the steps: obtaining the real-time operation data of a multi-element energy storage system which comprises an energy conversion and storage device, the energy conversion and storage device comprises an electric energy-heat energy conversion device, an electric energy-hydrogen energy conversion device, an electric energy storage device, a heat energy storage device, a hydrogen energy storage device and a superconducting magnetic energy storage device; constructing a multi-energy complementary comprehensive energy system model containing a minimum total operation cost objective function based on the real-time operation data; solving the multi-energy complementary comprehensive energy system model, and generating an anti-disturbance cooperative control strategy; and the charging and discharging instruction is controlled to be sent to the multi-element energy storage system based on the anti-disturbance cooperative control strategy to control cooperative operation of the multi-element energy storage system, so that real-time power balance of the multi-element energy storage system is realized, new energy output fluctuation and user load sudden change can be quickly responded, and the operation stability and anti-risk capability of the multi-element energy storage system are improved.

The invention discloses an energy storage power station-oriented battery aging sensing self-adaptive charging and discharging control method and system, and relates to the technical field of electric energy storage. The energy storage power station battery aging sensing self-adaptive charging and discharging control method comprises the following steps: S1, collecting battery working condition physical data, and preprocessing the battery working condition physical data; s2, acquiring a health attenuation factor, evaluating the health state of the battery, judging the health level of the battery based on an evaluation result, and generating a health level label; s3, evaluating the charging and discharging regulation and control capability of each battery, calculating a target charging and discharging current, generating a current instruction set, and implementing a current regulation task; and S4, evaluating the matching degree of the current adjustment strategy and the battery state after each round of current adjustment, and dynamically adjusting the target current. The problems that a traditional energy storage power station lacks a real-time identification and differentiation control mechanism for the aging state of the battery, and system capacity attenuation and thermal potential safety hazards are likely to be caused are solved.

The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic charging and discharging control method and system based on a direct-current coupling optical storage all-in-one machine, and the method comprises the steps: monitoring system operation parameters in real time; after the countercurrent risk is judged, energy storage is preferentially utilized to absorb redundant electric energy; when the stored energy is saturated, the photovoltaic output is dynamically adjusted instead of shutdown; when photovoltaic power generation is insufficient, the gap is supplemented through energy storage discharge. By monitoring system operation parameters in real time and dynamically coordinating photovoltaic power generation, energy storage charging and discharging and load requirements, photovoltaic energy is utilized to the maximum extent while reverse current of a power grid is avoided, redundant electric energy is preferentially stored in a battery, and photovoltaic output is intelligently adjusted instead of direct shutdown after energy storage is saturated; and when the load demand is higher than that of photovoltaic power generation, a gap is supplemented through energy storage discharge, so that energy waste is remarkably reduced, the system operation time is prolonged, the overall power generation income and economy are improved, and safe and stable operation of a power grid is ensured.

A hybrid electrochemical device configuration that comprises a first electrode that includes a redox reactive material or an alloy based on a transition metal, a second electrode that includes a multi-functional catalyst to catalyze hydrogen evolution reaction, hydrogen oxidation reaction, and water oxidation reaction at the second electrode, a separator disposed between the first and second electrode, an electrolyte disposed between the first electrode and the second electrode, and a conduit which provides the means to compensate for water loss in the electrolyte during electrochemical device operation. At least one valve is included that connects the electrolyte management system to the conduit system and a valve to connect the gas formed in the electrode to the gas management system. The electrochemical device configurations include several individual devices stacked on top of each other and separated from each other using separation plates.

This synthetic stone can be used as electrical energy storage which acts like a supercapacitor and invention also discloses a preparation method thereof. According to this invention, geopolymer (11) and cement (12) are being taken as materials for an electrolyte. A supercapacitor of the present invention comprises a geopolymer (11) and cement matrix (1) and a positive and negative steel electrode (2, 3), whereby the steel electrodes (2, 3) are arranged in the matrix (1), and the matrix (1) is prepared from conductive mortar. The conductive mortar (1) comprises fly ash, cement (12), gravel and sand, alkali activator (KOH and SiO2) (13), and some additives (14) of synthetic stone compounds such as poly carboxylate ether, retarder, lignosulfonate, ethylene-vinyl acetate, hydroxypropyl methyl cellulose, pigment and carbon black. This supercapacitor synthetic stone is simple in structure and is based on a particular formulation.

An energy store floor assembly for an electrically drivable motor vehicle includes a floor assembly with respective cross members, which extend between respective side sills and on the underside of which a vehicle floor is arranged, and an electrical energy store device, which is arranged under the vehicle floor and is accommodated in a multi-part store housing. To create an energy store floor assembly which is particularly lightweight and easy to produce, a housing upper part of the store housing forms the vehicle floor of the floor assembly, which is connected to at least one housing lower part via at least one gas-tight connection to form the store housing, which is fastened to the floor assembly on the underside of the cross members.

A store housing for an electrical energy store of a motor vehicle includes multiple housing walls which surround a receiving space for receiving at least one storage component of the electrical energy store, wherein at least one of the housing walls has a passage opening for discharge of a liquid which has accumulated in the receiving space into surroundings of the store housing, and at least one valve which is designed to conduct the liquid away from the receiving space into the surroundings via the passage opening and to at least reduce ingress of liquid from the surroundings into the receiving space via the passage opening. The at least one valve has a passive valve arranged in or at the passage opening. The valve has a first flow resistance in a first flow direction from the receiving space into the surroundings and has a second flow resistance in a second flow direction from the surroundings into the receiving space, which second flow resistance is larger in comparison with the first flow resistance.

The invention discloses a building photovoltaic integration and air conditioning system fusion system comprising a photovoltaic power generation subsystem used for converting solar energy into electric energy; the energy storage subsystem is used for storing and releasing electric energy; the air conditioning subsystem is used for adjusting the indoor environment of the building; the intelligent management and control subsystem is in communication connection with the photovoltaic power generation subsystem, the energy storage subsystem and the air conditioner subsystem and is used for collecting operation data of the subsystems, predicting photovoltaic output and air conditioner loads and executing scene-divided energy scheduling based on a model prediction control algorithm; therefore, the cooperative operation of preferentially supplying photovoltaic electric energy to the air-conditioning subsystem, storing or grid-connecting surplus electric energy, and supplementing energy by the stored energy or the power grid when the energy is insufficient is realized. According to the system, efficient production, storage and intelligent utilization of building energy can be achieved, a novel building energy system with self-generation and self-use, residual electricity storage and coordinated regulation is constructed, and the core problems that an existing building photovoltaic and air conditioning system is poor in collaboration and low in intelligent level are solved.

The invention discloses an intelligent scheduling method and system for a new energy load at a vertical take-off and landing point, and belongs to the technical field of new energy scheduling, and the method specifically comprises the steps: obtaining multi-main-body energy demand data through a power supply circuit device, and carrying out the distributed storage and desensitization processing; combining the processed multi-subject energy demand data with the real-time state information of the battery of the electric energy storage system, and calculating the dynamic energy distribution weight of each partner by adopting an improved Shapley value algorithm; on the basis of the weight and the real-time task dynamic state of each partner, a new energy scheduling rule is constructed, a control instruction is generated according to the new energy scheduling rule, new energy resources are scheduled and allocated, and a result is fed back to the electric energy storage system and each partner; according to the invention, the intelligent level, fairness, system energy efficiency and adaptive ability of new energy scheduling in a multi-partner scene are effectively improved.

The invention discloses an energy management method and device for an LED street lamp photovoltaic energy storage system, and the method comprises the steps: obtaining the output characteristic data and environment illumination data of a photovoltaic module of the energy storage system, and carrying out the energy conversion optimization, and obtaining the electric energy information; acquiring a charge state of a first energy storage unit of the energy storage system based on the electric energy information, executing three-stage electric energy storage to obtain a current energy storage state, and activating a second energy storage unit of the energy storage system; according to the current energy storage state and the environment illumination data, the power supply proportion of the first energy storage unit and the second energy storage unit is dynamically allocated, and an LED street lamp illumination instruction is generated; and through the LED street lamp illumination instruction, monitoring a power supply loop in real time, carrying out energy supply cooperative matching, and outputting a system protection instruction. The dynamic stability problem of the system under the complex working condition can be solved, and the operation reliability of the system under the continuous cloudy and rainy or extreme temperature condition is improved.

A computer system has processing circuitry to: acquire cell data from cell sensors of an electrical energy storage pack of an electrical energy storage system of a vehicle, determine at least two states of the cells based on evaluating the cell data; input the at least two states as input to a reinforcement learning algorithm configured to calculate control signals to balance the at least two states across the cells, and provide an output indicating the control signals.

A vehicle includes an electric powered propulsion system. An electric energy storage system is electrically connected to the electric propulsion system and is configured to have an electrical energy storage component and a controller. A charging port is connected to the electric energy storage system and configured to connect to an external power source. The controller includes a memory and a processor. The memory stores instructions for causing the processor to optimize a charging profile based on a plurality of received parameters using a multi-objective constrained optimization problem. The received parameters include a power type of a connected external power source, and at least one of a requested ready to depart time, a targeted state of charge, and an effective range.

1. The name of the design product: energy storage cabinet. 2. The use of the design product: the design product is used for electric energy storage and power supply. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1. 5. The right view is the same as the left view, and the right view is omitted.

The invention relates to the technical field of electric energy storage devices, and discloses a thermal management optimization system and method for a mobile electric energy storage device, and the method comprises the steps: carrying out the matching degree analysis based on a connector image of power consumption equipment and a corresponding interface image of electric energy output equipment, and carrying out the damage abnormality analysis when a connector is inserted into an interface based on the matching degree. Thermal abnormity generated in the charging process is predicted based on power consumption data of power consumption equipment and power transmission data of a corresponding interface of electric energy output equipment, and thermal damage influence analysis is carried out based on damage abnormity caused when a connector is inserted into the interface and the thermal abnormity generated in the charging process. Vibration anomaly analysis is performed based on vibration data in the charging process of the power consumption equipment, vibration damage influence analysis is performed based on vibration anomaly and damage anomaly, and the optimal interface is screened for charging operation by integrating thermal damage influence and vibration damage influence, so that the safety risk is reduced to the greatest extent, and the charging efficiency and stability are improved.

The invention relates to the technical field of power grid data analysis and management, in particular to a power grid data management system based on artificial intelligence, which draws a dynamic following curve of each electric energy storage device through a feature aggregation module, and extracts a dynamic parameter from the dynamic following curve through a dynamic analysis module. Determining a dynamic fatigue state of each electric energy storage device according to a comparison result of the dynamic parameter and a preset threshold value so as to construct a device calling cluster, determining an electric energy coordination estimation amount of a next operation evaluation time period through a device management module, determining a deployment strategy of the device calling cluster based on the electric energy coordination estimation amount, and further, determining the electric energy coordination estimation amount of the next operation evaluation time period. The dynamic operation state of the electric energy storage equipment is accurately captured, the intelligent allocation strategy of the equipment cluster is formulated according to the performance change in the charging and discharging switching process of the equipment in combination with multi-dimensional factors, and the economical efficiency and reliability of power grid operation are improved.

A power supply circuit for an x-ray production system, which has an inverter circuit with an output for connecting the inverter circuit with an x-ray source of the x-ray production system, includes a rectifier circuit including an input to connect the rectifier circuit with a power supply network, the rectifier circuit further including an output to connect to an input of the inverter circuit; and a backup circuit including a plurality of electrical energy storage cells, the plurality of electrical energy storage cells being connectable in series between the input of the inverter circuit and the output of the rectifier circuit.

The invention relates to a method for manufacturing a cell stack (100) for an electrical energy storage device, wherein the cell stack (100) comprises a plurality of electrically interconnected individual electrical cells (110), wherein it is provided that at least one elastic element (120) is arranged between each of the individual cells (110), thereby forming a cell stack (100) with a base surface (101), a top surface (102) opposite it, and side surfaces (103, 104, 105, 106) arranged between them, a force (F1) is applied to two side surfaces (103, 104, 105, 106) of the cell stack (100) by means of a clamping tool (300) such that the elastic elements (120) are at least partially compressed, and the at least one frame element (200) is clamped by means of a gripper (310). arranged in this way on the compressed cell stack (100),that this completely encloses all side surfaces (103, 104, 105, 106) section by section, and after the arrangement of at least one frame element (200) the clamping tool (300) is released from the cell stack (100), so that the elastic elements (120) expand in such a way that the outer dimensions in the longitudinal direction (y) and transverse direction (x) of the cell stack (100) correspond to the inner dimensions in the longitudinal direction (y) and transverse direction (x) of the frame element (200).

The invention relates to an electrical energy storage device (1) for a vehicle comprising a plurality of electrically interconnected individual cells (2) arranged in rows (Z1 to Zn) and columns (S1 to Sm) in a housing (3). According to the invention, the individual cells (2) are arranged in the housing (3) in a quasi-random distribution with irregular row spacing (az1 to az3) and / or column spacing (as1 to as3).

A method of regenerating an electric power storage unit for an aircraft hybrid electric propulsion (HEP) system is provided. The HEP system includes a thermal engine, an electric motor, an electric power storage unit, a primary gearbox, and a propulsion unit. The electric motor is configured to selectively provide rotational drive to the propulsion unit. The method includes: controlling the electric motor to operate as the generator; controlling the primary gearbox to be in an output disengaged configuration, wherein in the output disengaged configuration the primary gearbox is disengaged from driving the propulsion unit and the primary gearbox is transfers rotational drive produced by the thermal engine to the electric motor; operating the thermal engine to drive the primary gearbox in the output disengaged configuration; and regenerating the electric power storage unit by providing electrical energy produced by the electric motor to the electric power storage unit.

The invention discloses a wind-light wave hybrid drive unmanned ship which comprises a ship body, a sail propelling device, a propeller propelling device, a wave drive device, a solar power supply system and a control module. A solar panel is installed on the ship body and can convert solar energy into electric energy to be stored in a battery. The sail propelling device provides main propelling force for the unmanned ship by means of wind energy; the wave driving device generates propulsive force by utilizing wave energy and has a course control function; the propeller propelling device serves as auxiliary power and provides thrust under specific working conditions. The control module intelligently regulates and controls the working modes of the propelling devices according to the sea condition information based on a reinforcement learning energy management algorithm, and multi-energy cooperative driving is achieved; the unmanned ship solves the problems of single energy dependence, insufficient navigational speed and maneuverability and tedious deployment and recovery of the existing unmanned ship, has the advantages of long endurance, high maneuverability, environmental protection and easy operation, and is suitable for various tasks of ocean observation, scientific research monitoring and military reconnaissance.

A lifting device according to the invention, in particular for a transport vehicle, comprises an upper frame, a lower frame, and at least one primary lifting scissors, which has a first primary rocker and a second primary rocker that intersect at a primary scissor axis. The primary lifting scissors is designed and arranged such that a pivoting movement of the first primary rocker relative to the second primary rocker about the primary scissor axis changes the distance between the upper frame and the lower frame in a vertical direction. The lifting device also comprises at least one secondary lifting scissors, which has a first secondary rocker and a second secondary rocker that intersect at a secondary scissor axis.The secondary lifting scissors is designed and arranged such that the distance between the upper frame and the lower frame changes in the vertical direction through a pivoting movement of the first secondary rocker relative to the second secondary rocker about the secondary scissor axis. The primary scissor axis runs at an angle to the secondary scissor axis. A transport vehicle according to the invention, in particular an automated guided vehicle, comprises a drive device, an electrical energy storage device for supplying the drive device, a control device for controlling the drive device, and a lifting device according to the invention.

A computer-implemented method establishes map relating geographical location to vibration health impact on electrical energy storage systems adapted for providing propulsion power for a vehicle. A computer-implemented method improves a lifetime of an electrical energy storage system adapted for providing propulsion power for a vehicle when travelling on a route from an origin to a destination for accomplishing a mission.

A method for controlling a power assembly comprising a fuel cell unit and an electric energy storage system for storing excess electric energy produced by the fuel cell unit. The method comprises predicting a power demand from the power assembly over a prediction time horizon, obtaining a state-of-charge and / or power capability of the electric energy storage system, based on the predicted power demand and the obtained SoC and / or power capability, identifying a time period during which the power assembly is expected to be able to deliver power in accordance with the predicted power demand with the fuel cell unit shut down, or is at least expected to be able to deliver power at a minimum power level determined with respect to the predicted power demand, controlling the power assembly to shut down the fuel cell unit during at least a part of the identified time period in response to the identified time period being larger than a time threshold.

A system and a method control the energy required from an internal combustion engine (ICE) of an all-terrain machine with terrain engagement elements for moving the machine and hydraulic pumps for supplying hydraulic flow to a material handling attachment. The ICE drives the terrain engagement elements and a first hydraulic pump. The ICE drives a generator to provide electrical energy, which is stored in a battery. The stored electrical energy is selectively supplied to an electric motor, which drives a second hydraulic pump. If the total energy supplied by the ICE exceeds a predetermined level, the hydraulic flow supplied by the first hydraulic pump is reduced, and the hydraulic flow supplied by the second hydraulic pump is increased. The system and method allow a less powerful ICE to drive the machine.