4663 results about "Power storage" patented technology

The invention discloses a multi-type virtual power plant participation market regulation capacity optimization distribution method and system, and the method comprises the steps: constructing a power supply type, load type and energy storage type virtual power plant participation market operation characteristic model, and then combining a value-at-risk assessment CvaR model to obtain a value-at-risk assessment model; a refined virtual power plant capacity distribution model is established by taking maximum pumped storage income and minimum risk when the virtual power plant participates in capacity distribution of main and auxiliary markets as targets, constraint conditions are set for modeling, and finally, the virtual power plant is combined with an electric energy market demand, a peak regulation market demand and a frequency modulation market demand for joint optimization. And continuously detecting and optimizing through the virtual power plant capacity distribution model. According to the method, on one hand, execution of a power generation plan is guaranteed along with wind and light output, on the other hand, a reasonable capacity distribution mechanism in a multi-element market is designed according to different mechanisms of the current power market, services such as peak regulation, frequency modulation and standby are provided, and the optimal configuration problem of a virtual power plant in the power market is solved.

An integrated building block is provided and belongs to the field of toy products, which includes a battery pack formed by splicing an upper shell and a lower shell, wherein outer surfaces of an upper end and a lower end of the battery pack are respectively provided with plug-in convex points and plug-in concave points with matched sizes; a cavity is formed in the battery pack, and a power storage module and an expansion board are provided in the cavity; the power storage module is provided with a power supply interface on an outer surface of the battery pack by the expansion board, and the power supply interface is used to supply power to a corresponding electric module after being butted with other electric modules. The invention is improved in ease of use and overall aesthetics by integrating the battery pack, power storage module and expansion board into one structure.

The invention relates to the technical field of information, in particular to a control method and system for an intelligent photovoltaic charging pile in the technical field of automobile charging piles, and the method comprises the steps: obtaining the charging demands and residual electric quantity information of a plurality of electric automobiles, dynamically adjusting the charging power of each automobile through combining with an electric power distribution algorithm, and guaranteeing the reasonable distribution of electric power resources; acquiring real-time load data through a power grid load monitoring system, predicting a future power grid load change trend in combination with a historical load curve, and judging whether a charging strategy needs to be adjusted or not; according to historical data and real-time data, cooperative working parameters of photovoltaic power generation and storage battery power storage are optimized by adopting a machine learning algorithm, and the overall efficiency of the system is improved; a cooperative working mode of photovoltaic power generation, storage battery power storage and power grid power supply is dynamically adjusted through an intelligent optimization algorithm; if the illumination fluctuation is large, a standby power supply is started to supplement power supply, it is ensured that the charging process is not affected, meanwhile, the energy storage efficiency is optimized, and power resource waste is reduced.

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.

A control method for an energy management and control system, an apparatus, a device and a storage medium. The method comprises: acquiring weather data of a target date (110); on the basis of the target date, the weather data and a prediction model, generating first predicted electric power data and second predicted electric power data, the first predicted electric power data being data of electric power which can be converted by a renewable energy module on the target date, and the second predicted electric power data being data of electric power required by a load device to work on the target date (120); and, on the basis of the first predicted electric power data and the second predicted electric power data, generating a charging policy of the target date, the charging policy comprising: a first charging policy for charging an energy storage device on the basis of the renewable energy module, or a second charging policy for charging the energy storage device on the basis of the renewable energy module and another power supply module (130). The method achieves accurate control on power storage of energy storage devices, thereby improving the utilization efficiency of photovoltaic storage systems.

The invention relates to the technical field of intelligent power grids, in particular to a virtual power plant multi-level collaborative optimization control method based on digital twinning. According to the invention, data of the power generation end, the power storage end, the power transmission end and the load end are collected and processed in real time, a digital twin model is established, and accurate modeling and real-time monitoring can be carried out on each device of the virtual power plant. Through real-time optimization scheduling and cooperative control, energy loss can be minimized, supply and demand can be balanced, the energy use efficiency is improved to the maximum extent, and the cost is reduced; according to the method, the genetic algorithm and the particle swarm optimization algorithm are combined, scheduling optimization is carried out based on a multi-level collaborative optimization model, a virtual power plant can rapidly respond according to changes of real-time environment and load requirements, fossil energy reduction and clean energy increase are preferentially considered in the power generation equipment scheduling process, and greenhouse gas emission reduction is facilitated.

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 application discloses a shared energy storage system optimization method and system for comprehensive energy microgrids, which take into account a shared energy storage-multi-microgrid system model invested by a third party. The comprehensive energy microgrids are regional energy systems integrating multiple energy sources and adjustable loads, including CHP, heat storage, power storage and distributed renewable energy. Shared energy storage is invested by a third part, serve as a power price publisher, and is limited by power price boundaries. The method takes into account a carbon emission and trading model to reduce carbon emission. Costs of the microgrids include a power / gas buying cost, a demand response cost, a carbon trading cost, and an operating cost of CHP units. Finally, a minimum cost solution is resolved by a MILP algorithm. The invention realizes microgrid scheduling and improves the economic efficiency and environmental friendliness of the comprehensive energy microgrids.

An image capturing apparatus includes an image sensor, a power supply circuit, and a power storage device. A charging unit charges the power storage device using power from the power supply circuit. A control unit performs control such that in a first operation state of the image capturing apparatus, power is supplied from the power supply circuit to the image sensor without power being supplied from the power storage device to the image sensor. The control unit further performs control such that in a second operation state of the image capturing apparatus in which a maximum power consumption of the image sensor is higher than in the first operation state, power is supplied from the power supply circuit and the power storage device to the image sensor.

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 storage automation, and particularly discloses an electric power storage dynamic storage location distribution method and system fusing multi-dimensional factors, and the method comprises the following steps: constructing an electric power storage digital twin environment based on edge calculation, collecting multi-source heterogeneous data in real time through an OPC-UA protocol, and building a three-dimensional data association model; and based on the three-dimensional data association model, extracting a 28-dimensional state vector, and constructing a reinforcement learning state space. According to the power storage dynamic storage location allocation method and system fusing the multi-dimensional factors, a real-time mapping storage virtual environment is constructed through edge calculation and a digital twinning technology, and intelligent upgrading of power storage management is realized in combination with reinforcement learning and a cross-system linkage rule; according to the scheme, storage location distribution can be dynamically optimized according to multi-dimensional parameters such as the remaining service life and the maintenance cycle of the equipment, the storage space utilization rate and the equipment scheduling efficiency are remarkably improved, and the intelligent and automatic level of electric power storage is comprehensively improved.

The invention provides a coal preparation plant energy storage system and method based on digital twinning, and the system comprises a hybrid energy storage system, a battery management system, a high-voltage DC protection system, a pre-charging / discharging loop, a high-voltage AC power distribution system, a centralized PCS cluster, and a power electronic interface of a power grid. And the battery energy storage array is connected with power consumption equipment in the coal preparation plant. Constructing a digital twinborn model of the power consumption equipment, obtaining a scheduling plan of the coal preparation plant, determining the power consumption equipment required by the technological process under the current scheduling plan, and simulating the workload of all the power consumption equipment under the current scheduling plan through the digital twinborn model; and according to the workload of the power consumption equipment, predicting the electric quantity W required by the peak value of the electricity price under the current production scheduling plan, and configuring the corresponding energy storage capacity. Through full-process efficiency management and control, production efficiency is improved, an electric energy storage system is established, and an optimal power storage and discharge planning plan is given through a digital twin technology and local peak-valley electricity prices, so that the unit power consumption cost is reduced.

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.

A novel power storage system is provided. The power storage system includes a secondary battery and a subtractor. The subtractor includes a register. The subtractor has a function of converting a first voltage of the secondary battery into first voltage data by analog-digital conversion. The subtractor has a function of measuring time required for the first voltage to change only by a first voltage value. The register has a function of storing second voltage data that is higher than the first voltage data by a data value corresponding to the first voltage value. The subtractor has a function of stopping supply of power to the register until the first voltage changes by the first voltage value.

The invention relates to the technical field of new energy batteries, in particular to a working performance detection method for a power storage battery of a new energy automobile, and the method comprises the steps: obtaining a voltage residual sequence at a current sampling moment according to terminal voltage collection values and terminal voltage prediction values at a preset number of historical sampling moments before the current sampling moment; obtaining a first optimization factor and a second optimization factor for optimizing a process noise covariance matrix in an unscented Kalman filtering algorithm according to the voltage residual sequence; obtaining an optimized process noise covariance matrix by using the first optimization factor and the second optimization factor; according to the terminal voltage collection value at the current sampling moment and the optimized process noise covariance matrix, the SOC estimation value of the power storage battery at the current sampling moment is obtained and used for detecting the working performance of the power storage battery, and the estimation accuracy of the SOC value of the power storage battery is achieved by adjusting the process noise covariance matrix online.

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.

The invention relates to the technical field of electric power control, in particular to a fire storage cross-regional collaborative frequency modulation control method and system, and the method comprises the steps: generating a cross-regional power distribution instruction of a thermal power generating unit and battery energy storage through an upper-layer optimization model, and carrying out the multi-regional power instruction tracking through a lower-layer distributed control model; selecting a current frequency modulation strategy from a local frequency modulation mode and a cross-regional support mode based on the charge state of the battery energy storage in the disturbance region; in the power distribution instruction generation process, dynamic nonlinear correction is carried out on the energy storage output weight according to the charge state; and calculating local fire storage output by each region based on the current frequency modulation strategy and the power distribution instruction, generating a frequency modulation control instruction meeting the frequency safety constraint and the tie line transmission constraint, and completing cross-region collaborative frequency modulation. According to the invention, the problems of insufficient frequency modulation economy caused by lack of centralized and distributed coordination and rigid responsibility distribution caused by energy storage life static management are effectively solved, and economy-life balanced regulation and control are realized.

The invention relates to the technical field of heat dissipation pipes and discloses a fin type heat dissipation pipe which comprises a rectangular supporting frame, a plurality of heat dissipation pipe bodies are rotationally connected into the supporting frame, and a shaking mechanism used for driving the heat dissipation pipe bodies to synchronously clean attached dust is arranged at the top of the supporting frame. A power storage mechanism used for driving the shaking mechanism to work is further arranged at the top of the supporting frame, a driving mechanism is arranged at the position, on one side of the power storage mechanism, of the top of the supporting frame, the shaking mechanism is arranged, a rotating rod is used for driving the heat dissipation pipe body to rotate intermittently, attached dust is shaken off in the rotating process of the heat dissipation pipe body, and the dust is cleaned through regular shaking; the surface of the fin can be kept clean, so that the optimal working state of the radiator is ensured, the efficient heat exchange performance is maintained, a method for removing dust through shaking hardly causes damage to equipment, the method does not involve direct contact or use of chemical substances, and the completeness of the radiating pipe and the fin of the radiating pipe can be effectively protected.

The invention discloses a power storage performance attenuation and variation detection method for an energy storage battery, and relates to the field of energy storage batteries. The method comprises the following steps: deploying a terahertz time-domain spectroscopy system and a microphone array on the surface of the energy storage battery, based on a terahertz time-domain spectroscopy system and a microphone array, acquiring a three-dimensional imaging map and a voiceprint signal of the energy storage battery at the beginning stage of charging the energy storage battery each time; creating a cloud database, and storing the three-dimensional imaging map and the voiceprint signal of the energy storage battery by using the cloud database; according to the method, terahertz time-domain spectrum three-dimensional imaging and voiceprint signal bimodal data are fused, battery global information acquisition is realized through distributed array scanning and matrix deployment, and a multi-dimensional attenuation evaluation model is constructed by combining dynamic storage and comparative analysis of a cloud database, so that the accuracy of battery attenuation evaluation is improved. A dynamic weight adjustment mechanism and ontology state information correction are introduced, so that the attenuation index estimation precision is remarkably improved.

Provided is an exterior material for a power storage device which excels in formability and heat resistance.　The exterior material for a power storage device is composed of a multilayer body that comprises a base material layer, a barrier layer, and a heat-fusible resin layer, in that order. The base material layer is a polyester film containing polyethylene terephthalate and polybutylene terephthalate at a mass ratio of 65 / 35 to 90 / 10. The tensile elongation at break of the polyester film in the width direction is 90 to 155%.

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 present invention discloses a movable visual inspection device for shield machines, comprising a rail and an inspection platform. The rail is installed on a shield tail, and the inspection platform includes a bottom plate, a shell, a cleaning mechanism, a power storage control system, and a traveling mechanism. Inside the shell is a visual inspection mechanism with a camera box, a camera, and a stabilizer component. The traveling mechanism drives the bottom plate along the rail. The cleaning mechanism, consisting of a glass sheet, a reel driving part, and a cleaning film, keeps the camera lens clear. The reel driving part rotates the cleaning film, which slides against the glass sheet on the camera box. This invention enables multi-faceted and multi-angle visual inspection of shield machine segments, ensures a clear camera lens, facilitates automatic cleaning and inspection position adjustment, and enhances working efficiency and inspection effectiveness.

The invention relates to an energy system configuration optimization method considering equipment variable working condition characteristics and energy storage life attenuation, which comprises the following steps: establishing a mathematical model of an energy system, and calculating equipment cycle aging indexes in the mathematical model of power storage equipment by considering the energy storage life attenuation, in mathematical models of the cold-heat-electricity combined supply system, the gas-fired boiler and the electric refrigerating unit, the corresponding efficiency is calculated by considering the variable working condition characteristics of the equipment; and based on the established mathematical model, resource configuration optimization of the energy system is carried out by using a double-layer optimization method, the upper layer optimizes equipment capacity design by taking minimization of annual cost as a target, and the lower layer carries out operation optimization by taking the sum of minimization of operation cost, battery life degradation cost and demand electricity price as a target. The battery life degradation cost is calculated based on the equipment cycle aging index. Compared with the prior art, battery life attenuation and equipment variable working condition operation are considered at the same time, and the overall efficiency and reliability of the system are improved.

The invention discloses a heating circuit, an electricity storage system and a heating control method, and relates to the field of batteries, a control module can control the working state of a heating module according to the element temperature acquired by a temperature acquisition module, so that the activity of substances in a battery cell is improved by heating the battery cell, and then the discharge capacity of the battery cell is improved; large-current discharge at a lower environment temperature is helped to be realized, and the cold start requirement in a low-temperature environment is realized; under the condition that the control module fails, the protection module can control the heating module to stop working after heating is completed according to the element temperature collected by the temperature collection module, so that thermal runaway of the heating module caused by the control module is avoided, the safety and reliability of the heating function are improved, and the safety of the battery cell and the automobile is guaranteed.

A cooling system for a power storage device includes a blower fan that is mounted in a vehicle along with the power storage device and that blows air in a cabin to the power storage device and a control device that controls the blower fan. The control device stops the blower fan when it is ascertained that predetermined conditions that the vehicle is in a stopped state, a current-relevant value relevant to a current of the power storage device is in a predetermined range including a value 0, the blower fan is being driven, and the temperature of the power storage device is increasing are satisfied.

An example foldable mobile computing device includes a first side including a first power storage device coupled to a first regulator. The device includes a second side including a second power storage device coupled to a second regulator and connected in parallel with the first power storage device. The second side is configured to articulate relative to the first side about a hinge. The device includes processing circuitry configured to determine a power storage capacity of the first power storage device and to determine a power storage capacity of the second power storage device. The device is also configured to adjust, based on the power storage capacity of the first power storage device and the power storage capacity of the second power storage device, at least one of an impedance of the first regulator or an impedance of the second regulator.

The invention discloses a combined cooling, heating and power energy storage system based on liquid carbon dioxide circulation. The combined cooling, heating and power energy storage system comprises a wind / light power generation system, an energy storage system, an energy release system, a heat storage and heat supply system and a cold storage and cold supply system. The wind / light power generation system is connected with the energy storage system through the driving motor, and the energy storage system is connected with the heat storage and supply system through the first heat exchanger. The energy release system is connected with the energy storage system through a second carbon dioxide liquid storage tank; the energy release system is connected with the heat storage and supply system through the second heat exchanger. The cold storage and supply system is connected with the energy storage system through a first cold supply heat exchanger and connected with the energy release system through a second cold supply heat exchanger. Carbon dioxide serves as an energy storage working medium, surplus new energy power of a power grid is stored based on liquid phase storage of the carbon dioxide, meanwhile, by optimizing utilization of cold / heat loads in the energy storage and release process, the requirements for cold supply, heat supply and the like of a user side can be met while power storage is met, and a meaningful thought can be provided for construction and development of a regional micro-grid.

A vehicle includes a vehicle body. The vehicle body includes a first circuit and a first control device. The vehicle body is configured such that a power storage device is attachable to and removable from the vehicle body. The power storage device includes a second circuit. The second circuit includes a battery. The first control device is configured to acquire information on at least one of a state of the battery or a state of the second circuit from the power storage device when the power storage device is attached to the vehicle body, and determine, using the information, whether to apply a voltage of the battery to the first circuit.

A holder configured to hold a plurality of power storage elements arranged side by side includes: a plurality of recesses that respectively accommodate the plurality of power storage elements with the power storage elements exposed to an upper side in an up-down direction; a plurality of frame portions that each partition two recesses adjacent to each other; and a plurality of holding portions that respectively protrude toward the upper side from the plurality of frame portions and are configured to hold the power storage elements accommodated in the recesses. The plurality of holding portions include first holding portions contact the power storage elements accommodated in the recesses, and second holding portions contact with the power storage elements accommodated in the recesses. A first holding portion and a second holding portion provided in the same frame portion among the plurality of frame portions do not overlap.

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.