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54 results about "Energy storage" patented technology

Energy storage is the capture of energy produced at one time for use at a later time. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential, electricity, elevated temperature, latent heat and kinetic. Energy storage involves converting energy from forms that are difficult to store to more conveniently or economically storable forms.

Conductive composite fiber and preparation method thereof

InactiveCN102877286ASimple processLow costPhysical treatmentFiberIce water
The invention relates to a conductive composite fiber and a preparation method thereof. The conductive composite fiber comprises a skin core structure including conductive particles and organic fibers, wherein the mass percentage composition of the conductive particles is 0.5-10%, and the mass percentage composition of the organic fibers is 90-99.5%. The preparation method comprises the following steps: (1) pre-treating the organic fibers in pretreatment liquid, and blowing; (2) soaking the fibers into water dispersion liquid of the conductive particles, ultrasonically assisting the conductive particles to outer layers of the fibers in ice water bath, soaking, drying, and soaking, cleaning and drying through hydrochloric acid solution to obtain the conductive composite fiber. According to the invention, the conductive composite fiber has the advantages of no organic solvent in preparation, greenness and environmental friendliness, simple process, low cost, continuous large-scale production, high conductivity of a product, difficulty in falling conductive components, durable conductive performance, soft hand feel and capability of being knitted; and the conductive composite fiber is used as an antistatic and electromagnetic shield material and an energy storage electrode material.
Owner:DONGHUA UNIV

Classified microgrid networking system based on terminal users

InactiveCN102664415AFlexible operationAchieve independent operationPower network operation systems integrationAc network voltage adjustmentMicrogridPower grid
The invention discloses a classified microgrid networking system based on terminal users and relates to the microgrid networking system. A user-stage microgrid is composed of a microgrid busbar, a distribution network busbar, a load switch, a power switch, an energy storage switch, a microgrid switch and a distribution network switch; the microgrid busbar is an alternating current or direct current busbar and is connected with a community-stage microgrid through the microgrid switch; the distribution network busbar is connected with a public distribution network through the distribution network switch; a conventional load is connected with the public distribution network; a compatible load is connected with the microgrid busbar or the distribution network busbar through the load switch; a distribution power supply is connected with the microgrid busbar through the power switch; and an energy storage device is connected with the microgrid busbar or the distribution network busbar through the energy storage switch. The classified microgrid networking system based on the terminal users is suitable for microgrid networking of terminal users who use photovoltaic or wind-solar hybrid equipment for distributed generation.
Owner:STATE GRID HUBEI ELECTRIC POWER RES INST +1

Phase-change energy storage type radiant heating and cooling tail end device and control method

InactiveCN104048379ARealize indoor temperature regulationReduce the temperatureCeilingsLighting and heating apparatusCapillary networkEngineering
The invention discloses a phase-change energy storage type radiant heating and cooling tail end device and a control method. The phase-change energy storage type radiant heating and cooling tail end device comprises a heating device, a cooling device, a control system of the heating device and a control system of the cooling device. The heating device is a phase-change energy storage type floor arranged on the ground, and the cooling device is a phase-change energy storage type suspended ceiling arranged at a roof. Phase-change materials and capillary networks are arranged in the phase-change energy storage type floor and the phase-change energy storage type suspended ceiling, so that the tail end of a radiant heating air conditioner is combined with the phase-change energy storage technology. By using the phase-change materials, energy storage at night and energy release in the daytime can be achieved so that operation cost can be saved for users using electric energy conversion, and the difference between the peak and the valley of a power grid can be reduced to protect power grid equipment; meanwhile, the method of combining time control with temperature control is adopted, the adopted temperature control can make up for defects of the time control, and therefore the indoor temperature is kept within the human comfort range.
Owner:SOUTHEAST UNIV

High surface area and low structure carbon blacks for energy storage applications

ActiveUS20120214000A1Increase capacitanceEfficient separationPigmenting treatmentCapacitor and primary/secondary cellsApparent densityElectrochemical double layer capacitor
The present invention, in part, relates to a carbon black having a) a nitrogen BET surface area (BET) of from about 600 m2 / g to about 2100 m2 / g, b) a CDBP value in mL / 100 g of from about (−2.8+(b*BET)) to about (108+(b*BET)), where b is 0.087 and BET is expressed in m2 / g, and c) an apparent density (p, g / cm3) of at least about 0.820+q*BET, where q=−2.5×10−4, as determined at a compressive force (P) of 200 kgf / cm2 on dry carbon black powder. Energy storage devices, such as electrochemical double layer capacitors (EDLC's), containing the carbon black are also disclosed. Methods for making the carbon blacks and EDLC's made with them are also provided.
Owner:CABOT CORP

Energy supply circuit without power converter and electronic device using same

The present invention relates to an energy supply circuit for instantly supplying power without a power converter and an electronic device which operates only when energy is supplied from an energy source using the same. An energy supply circuit without a power converter according to the present invention comprises: an energy extraction unit 10 for generating power from an energy source; and output unit 20 for supplying power to an external electronic circuit; a switch unit 30 interposed between the energy extraction unit and the output unit 20 to connect an output end of the energy extraction unit 10 to the output unit 20 when switched on; and a maximum power point tracking control unit 40 for generating an open / closed signal for opening or closing the switch unit 30 according to the voltage and current of the energy extraction unit 10. The present invention has a technical feature wherein a turn-on point of the open / closed signal comes at a time when the output end voltage of the energy extraction unit 10 is Vh, and a turn-off point comes at a time when the output end voltage of the energy extraction unit 10 is Vl. Accordingly, the present invention has a simple configuration, low manufacturing costs, has no energy loss due to the power conversion, and has no reduction in life due to charging and discharging of an energy storage device.
Owner:SEOUL NAT UNIV R&DB FOUND +1

Charging-discharging circuit for electric meter

PendingCN110429700AOvercome the problem of greatly reduced space utilizationRealize charging and discharging functionBatteries circuit arrangementsElectric powerCapacitanceElectricity
The invention relates to a charging and discharging circuit for an electric meter. The charging and discharging circuit comprises a super capacitor module (1) arranged at the back surface of a main board (4) of an electric meter and used for energy storage and energy dissipation; a charging module (2) arranged at the front end of the super capacitor module (1) and used for controlling the super capacitor module (1) to charge and store energy according to the received charging signals; and a discharging module (3) connected with the super capacitor module (1) and used for controlling the supercapacitor module (1) to perform charging and energy dissipation for a load (5) arranged at the rear end of the super capacitor module (1) according to the received power-down information. The chargingand discharging circuit can supply power to the system and the load when the electric meter is powered down to achieve report of the power-down data, and is good in stability.
Owner:NINGBO SANXING MEDICAL & ELECTRIC CO LTD

Electronic ballast

InactiveCN102006706AElectrical apparatusElectric lighting sourcesGas-discharge lampControl circuit
The invention relates to an electronic ballast. The electronic ballast for driving a gas discharge lamp includes a rectifier, a valley-fill circuit, an inverter having first and second series-connected controllably conductive device having complementary duty cycles, a control circuit for controlling the controllably conductive device, and an independent cat ear power supply to provide power to the ballast control circuits. The result is a ballast having substantially improved THD, and current crest factor. In a preferred embodiment, the valley-fill circuit includes an energy storage device that stores energy in response to a controllably conductive device. In an especially preferred embodiment, the controllably conductive device of the valley-fill circuit is also one of the controllably conductive devices of the inverter.
Owner:LUTRON ELECTRONICS CO INC

Fire-fighting robot carrying large-flow water cannon

InactiveCN107412990AEffective cushioningStable supportFire rescueWireless transceiverEngineering
The invention discloses a fire-fighting robot equipped with a large-flow water cannon, which includes a chassis, a walking mechanism is arranged on both sides of the chassis, an energy storage battery is fixed on the upper part of the chassis, and the energy storage battery has two output power parts, each The output power parts are each connected with a walking mechanism, the chassis is fixed with a water pipe fixing frame, the water pipe fixing frame is fixed with a first Z-shaped water pipe, the upper part of the chassis is covered with a casing, and the casing is provided with a second Z-shaped water pipe and a water cannon launch mechanism , the first Z-shaped water pipe, the second Z-shaped water pipe and the water cannon launching mechanism are sequentially connected; the water cannon launching mechanism includes a water cannon accommodating cavity and a water cannon booster pump arranged at the end of the water cannon accommodating cavity, and the water cannon accommodating cavity and the water cannon accommodating cavity The second Z-shaped water pipe is connected, and the water cannon booster pump is arranged between the water cannon accommodation chamber and the second Z-shaped water pipe; the water cannon camera and wireless transceiver are arranged on the water cannon accommodation chamber, and the water cannon camera is used to collect the fire scene image.
Owner:DONGGUAN BEIYANG IND DESIGN CO LTD

Vehicle-mounted temperature regulation and control method

InactiveCN106828020AAutomatically detect capacityVehicle-mounted temperature adjustment and control method is green and environmentally friendlyAir-treating devicesVehicle heating/cooling devicesElectrical batteryTemperature difference
The invention discloses a vehicle-mounted temperature regulation and control method. According to the regulation method, under the conditions that a vehicle travels normally, and a light intensity condition is met, a thin film solar cell and a semiconductor unit commonly generate power based on temperature difference to charge an energy storage device; and in a state that the vehicle is stationary, the energy storage device and the thin film solar cell can supply power to a whole system. Meanwhile, the system can be automatically started/stopped according to the temperature difference between the interior and the exterior of the vehicle; a controller is configured to monitor the capacity of the energy storage device, so as to determine whether a fan and the semiconductor unit work or not; in a state that the vehicle is stationary, the temperature difference between the interior and the exterior of the vehicle exceeds a preset value, the semiconductor unit and the fan start to work for reducing the temperature of the interior of the vehicle; and in a state that the vehicle travels normally, the temperature difference between the interior and the exterior of the vehicle exceeds a certain value, the semiconductor unit can also generate power to charge the energy storage device.
Owner:IANGSU COLLEGE OF ENG & TECH

Ultra-low ambient temperature air source heat pump unit using daily range of outdoor temperature of heat storage balance chamber

ActiveCN109780749AIncrease heating capacityMeet heat load demandsMechanical apparatusCompression machines with non-reversible cycleVapor–liquid separatorSolenoid valve
The invention discloses an ultra-low ambient temperature air source heat pump unit using the daily range of the outdoor temperature of a heat storage balance chamber. The heat pump unit comprises a quasi-secondary (two-stage) compressor, an indoor heat exchanger, an economist, a main electronic expansion valve, an outdoor heat exchanger, a first auxiliary electronic expansion valve, a second auxiliary electronic expansion valve, an energy storage water tank, a first solenoid valve, a second solenoid valve, a circulating water pump, a four-way reversing valve, and a gas liquid separator. Duringthe day, at the noon with the not very low outdoor temperature, the unit has excess heat stored in the energy storage water tank, when the outdoor temperature is very low at night, the unit uses thestorage heat to heat and gasify the compressor for gas supplement, the heat absorbed from the outside absorption of the unit is equivalent to the sum of the heat absorbed from the environment of the outdoor heat exchanger and the heat absorbed from the heat storage water of the gas supplement, when the operating state of the compressor is unchanged, the unit heat can be increased by 32% or higher,and the heat requirements in the ultra-low temperature environment of the unit are met, so that the daily range of the outdoor temperature is balanced.
Owner:HARBIN INST OF TECH

A new energy vehicle energy storage optimization control method based on multi-objective genetic algorithm

PendingCN109376437AWith energy saving effectRealize energy savingGeometric CADDesign optimisation/simulationCouplingNew energy
The invention discloses a new energy vehicle energy storage optimization control method based on a multi-objective genetic algorithm, which comprises the following steps: establishing a control strategy database of the vehicle-mounted energy storage system; establishing characteristic data module of vehicle energy storage system; establishing the evaluation module of multi-factor coupled energy storage system to evaluate the advantages and disadvantages of the current control strategy in the whole life cycle; a multi-objective genetic algorithm is used to optimize the energy-saving control strategies. By comparing and analyzing the effect of each control strategy, the optimal control strategy of new energy vehicle energy storage is obtained under the coupling of multiple factors. Under thecondition that the passenger comfort degree is ensured, the speed command designed by the invention can realize traction energy saving. The speed command obtained from the final design meets the requirements of non-dominated standards, which is very beneficial to the decision-making based on the time uniform distribution standard and the energy consumption sensitivity standard. Aiming at the energy-saving optimization of speed commands under various control strategies of energy storage system, the optimal control strategy of vehicle-mounted energy storage system can be obtained through the comparative analysis of its effects.
Owner:CRRC NANJING PUZHEN CO LTD

Electromagnetic lock driving circuit

PendingCN109209044ANon-mechanical controlsElectromagnetic lockTime delays
The invention relates to an electromagnetic lock driving circuit which is used for sending a locking pulse or an unlocking pulse to an electromagnetic lock. The electromagnetic lock driving circuit comprises a time delay unit, an on-off unit, an energy storage unit and a switching unit, wherein the time delay unit is used for controlling the pulse width of the locking pulse; the on-off unit is used for controlling the on-off of a locking circuit of the electromagnetic lock according to the time delay unit so as to generate the locking pulse; the energy storage unit is used for providing the energy required by the unlocking pulse; the switching unit enables the energy storage unit to charge when receiving a locking bias signal; and the energy storage unit is enabled to output the unlockingpulse when the locking bias signal disappears. The electromagnetic lock driving circuit outputs the unlocking pulse to the electromagnetic lock through using the energy storage unit, thereby being capable of avoiding the simultaneous use of positive and negative power supply modules in the electromagnetic lock driving circuit, and effectively simplifying the electromagnetic lock driving circuit. In addition, the electromagnetic lock driving circuit outputs the unlocking pulse to the electromagnetic by using the energy of the energy storage unit when the locking bias signal disappears or the power supply is interrupted, thereby being capable of avoiding the trouble that the electromagnetic lock of a charging gun cannot be unlocked due to the interruption of the power supply.
Owner:EAST GRP CO LTD

Flywheel

InactiveUS20120111142A1High strengthAppropriate stiffnessFlywheelsRotary machine partsEngineeringFlywheel
The invention relates to an apparatus and method for constructing a flywheel for energy storage, the flywheel having a drive transfer element and a rim comprising a mass element, the drive transfer element being coupled to the rim by a winding around each, and the flywheel incorporating an indicator ring functioning as a mechanical fuse for providing an indication of excessive flywheel component stress.
Owner:RICARDO UK LTD
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