217results about How to "Large energy storage" patented technology

The invention relates to a phase-transition composite material which comprises: A) 30-65% of phase-transition materials which are low melting point paraffin with a melting point of 25-45 DEG C and / or dodecanol; B) 25-45% of carrier materials which are high density polyethylane and / or ethane-vinylacetate copolymer; C) 5-15% of inorganic fillers which are porous substances and are selected from one or two of expanded perlite and expandable graphite; D) 1-10% of heat-conduction reinforcing agents; and E) 1-10% of fire retardants. The composite material has an appropriate phase transition temperature which matches the building ambient temperature, has great phase transition latent heat, excellent heat-preservation and heat-insulation performance, is fireproof and flame-retardant, is easy to process, and has greatly reduced phase-transition material leakage. The invention also relates to a method for preparing the phase-transition composite material, which comprises the thermal insulation mortar of the phase-transition composite material and a method of heat preservation of a wall by using the mortar.

Method and arrangement for providing an energy converter that includes a combustion system ( 1 ) including at least one piston ( 2, 3 ), at least one combustion chamber ( 6, 7 ) having at least one inlet ( 11, 13 ) and at least one outlet ( 10, 12 ) with inlet and outlet valves ( 14, 15, 16, 17 ). At least one controllable inlet valve and at least one outlet valve is also provided. A fuel supply is provided ( 18, 19 ) for supplying fuel and a medium containing oxygen is provided for induction into the combustion chamber ( 6, 7 ). An electric machine ( 9 ) is arranged to interact directly or indirectly with the piston ( 2, 3 ) in an electromagnetic manner such that it produces electrical energy from the piston movements, as well as uses electrical energy to affect the piston movement. A control unit ( 30 ) controls the combustion system ( 1 ) and the electric machine ( 9 ). The energy converter is arranged to adapt its power output depending on the required load of the energy converter. The invention also relates to a method for for starting an energy converter.

The invention provides an analysis method of the corrosion action and the corrosion effect of a carbonate rock. The method comprises the following steps: detecting petrologic parameters, geological fluid characteristics and geological background parameters of a reservoir stratum of the carbonate rock; selecting a plunger sample, and preparing the plunger sample into a diagenetic fluid; performing weighing, physical property analysis, CT scan analysis and microscopic property analysis on the sample before experiment; performing a corrosion simulated experiment on the carbonate rock, and collecting the reaction generated liquid; performing the physical property analysis, the CT scan analysis and the microscopic property analysis on the sample after experiment; analyzing the content of Ca<2+> and Mg<2+> of the generated liquid; analyzing the corrosion action of the carbonate rock under different controlling factors, determining a three-dimensional structure and a microcosmic pattern of representation of a corrosion hole of the carbonate rock, and quantitatively assessing the corrosion hole of the carbonate rock and the communicated property evolution. By the method, the corrosion action and the corrosion benefits of the carbonate rock from an earth surface to the deep burying environment can be analyzed, and more accurate analytical data is provided for assessing and forecasting the favorable reservoir stratum of the carbonate rock.

The invention provides power-down retaining circuit and method and a power supply system. The circuit comprises an energy storage capacitor, a voltage reduction circuit and a voltage booster circuit, wherein the first input end and the second input end of the voltage reduction circuit are respectively connected with the anode and the canoed of an input power supply, the first output end and the second output end of the voltage reduction circuit are respectively connected with the anode and the canoed of the energy storage capacitor for reducing the input voltage of the input power supply when the input power supply is normal, the energy storage capacitor is charged by the output of the voltage reduction circuit, the first input end and the second input end of the voltage booster circuit are respectively connected with the anode and the canoed of the energy storage capacitor for boosting the energy storage voltage of the energy storage capacitor when the input power supply is powered down, and the energy storage capacitor is used for finishing a charging process by the reduced input voltage when the input power supply is normal and is also used for supplying power to an output load by the boosted energy storage voltage when the input power supply is powered down. The embodiment of the invention realizes a long period of power-down protection time when a low voltage is input.

The invention discloses a duel-clutch stepless speed change series parallel hybrid power system in the technical field of automobiles, which comprises an engine, a first clutch, a first motor, a second clutch, a second motor, a speed reduction differential gear, a driving axle, a wheel, an energy storing device, a motor control device, an attachment drive transmission gear and a starting motor, wherein a crank shaft output end of the engine is connected with a rotor of the first motor through the first clutch; the rotor of the first motor is also connected with a rotor of the second motor through the second clutch; the rotor of the second motor is connected with the wheel through the speed reduction differential gear and the driving axle; the energy storing device is electrically connected with the motor control device; the attachment drive transmission gear is connected to the rotor of the first motor to provide hybrid drive for attachments for air-conditioning, braking, steering and the like; and the starting motor is connected with the crank shaft output end of the engine through an input end driving disc of the first clutch. The duel-clutch stepless speed change series parallel hybrid power system has the characteristics of entire car stepless speed change series parallel drive, attachment system hybrid drive, low system cost, low development cost, low maintenance cost and the like.

The invention discloses a heat superconducting composite phase change energy storage material. The heat superconducting composite phase change energy storage material aims at improving the content and the thermal conductivity of phase change materials in a solid-liquid composite phase change energy storage material. The heat superconducting composite phase change energy storage material comprises phase change energy storage materials which are uniformly distributed in apertures of porous foamed aluminum and a heat-conducting and sealing material layer is coated on outer surfaces of the apertures. Compared with the prior art, the heat superconducting composite phase change energy storage material utilizes an inorganic metal porous continuous material foamed-aluminum as a matrix, adopts graphite powder added into a paraffin melt liquid and utilizes a graphite coating added with an adhesive for aperture sealing and thus through the above structure, the heat superconducting composite phase change energy storage material which is a shaped solid-liquid phase change energy storage material has a high energy storage capacity due to large and more apertures of foamed aluminum and has high thermal conductivity due to graphite powder added into a paraffin material and a graphite aperture-sealing layer.

Flywheel generating multifunctional system comprising, a case subsystem, flywheel-bearing subsystem, energy conversion generating subsystem containing a multifunctional armature, power and propulsion subsystem. In the system, at least one of the following components is used, a flywheel including more than one pair of magnetic poles at the axial and radial positions respectively, a combination flywheel with enlarged magnetic pole excitation operating area, annular magnetic suspension bearing possessing constraining force of more than two two-dimensions, eccentric type ring shape magnetic suspension bearing, more than two multifunctional armatures using weak magnetic material as armature core, controllable movable armature winding with iron core made of soft magnetic material.

The invention provides a fuel cell hybrid power car energy storage system based on elastic energy storage and an energy distribution method and relates to a fuel cell hybrid power car energy storage structure and an energy distribution method. The problems that a cell used in an existing hybrid power car is slow in charging and short in life and meanwhile pollutes environments are solved. According to the fuel cell hybrid power car energy storage system based on elastic energy storage and the energy distribution method, a fuel cell, a super capacitor and an elastic energy storage device are adopted for energy supplement, and the fuel cell adopts the mode of corresponding fuel supplement for charging and has the characteristics that charging is quick, and pollution is avoided; the super capacitor has the characteristics that the power density is high, and the circular life is long, and the defect that the power density of the fuel cell is low is made up; and the elastic energy storage device has been applied to power grid energy storage and has the characteristics that the energy storage capacity is large, pollution is avoided, and the life is long. The fuel cell hybrid power car energy storage system based on elastic energy storage and the energy distribution method are suitable for a power car provided with a composite energy storage system with the elastic energy storage device, the fuel cell and the super capacitor.

The utility model discloses a magnetic levitation flywheel energy accumulation system, which has the advantages of small deadweight, large electricity storage, low manufacturing cost, mobile usage, free adjustment of the real-time discharge quantity value to the outside, and quick charge or large real-time discharge; wherein, the axial component of ''the high-vacuum enclosed housing'' is made of materials of low specific gravity. No permanent magnetic material components are positioned on the ''Flywheel'' and the ''Wheel Disk'' is divided into three rings. Four ''Permanent Magnetic Rotating Motor Devices'' are arranged. The ''Magnet bearing'' is ''all magnetic levitation bearing'' or ''semimagnetic levitation bearing''. The utility model is also provided with a device to guarantee the reliability of the mobile usage of the ''Magnet Bearing''.

The invention relates to an electromotor energy storage braking system and a control method, and belongs to an energy storage braking system and a control method used for storing and recycling energy generated in the process of electromotor braking. The electromotor energy storage braking system and the control method mainly solve the technical problems that an existing energy storage device is small in stored energy, large in interference to a power grid, inconvenient to use and the like. The electromotor energy storage braking system comprises a main electromotor, a rectifier, a main inverter, a direct current bus, a filter capacitor, a control computer, a first pulse width signal generator and a first driving module, and further comprises a motor rotary speed controller, an electromotor or a generator, a hydraulic pump or a motor, a two-position three-way control valve, a hydraulic energy accumulator, a safety valve, a pressure sensor, a rotary speed sensor, a hydraulic oil tank, a voltage sensor, a second pulse width signal generator and a second driving module. The electromotor energy storage braking system and the control method have the advantages of achieving active control to the process of electromotor braking, saving energy, reducing consumption, achieving energy saving and emission reduction and the like.

The invention discloses a totem-pole bridgeless PFC circuit, a power conversion device and an air conditioner. The totem-pole bridgeless PFC circuit comprises at least one upper bridge arm MOS tube, at least one lower bridge arm MOS tube, an inductor, a filter capacitor and at least one bootstrap circuit, wherein each upper bridge arm MOS tube and the lower bridge arm MOS tube are connected in series to form a switch bridge arm circuit; the bootstrap circuit corresponds to the number of the switch bridge arm circuits; the output ends of a driving power supply circuit are respectively connectedto a grid electrode of the lower bridge arm MOS tube and the input end of the bootstrap circuit; the output end of the bootstrap circuit is connected to a source electrode of the upper bridge arm MOStube, wherein the driving power supply circuit is used for driving the conduction of the upper bridge arm MOS tube and / or the lower bridge arm MOS tube; and the bootstrap circuit and the driving power supply circuit form a charging loop for storing electric energy when the corresponding lower bridge arm MOS tube is conducted. According to the totem-pole bridgeless PFC circuit, the power conversion device and the air conditioner, a problem that the upper bridge arm MOS tube cannot be reliably conducted due to the fact that the bootstrap capacitor cannot be charged or has insufficient charge.

The invention provides an electrochemical cell based on a new chemistry for a flow battery for large scale, e.g., gridscale, electrical energy storage. Electrical energy is stored chemically at an electrochemical electrode by the protonation of small organic molecules called quinones to hydroquinones. The proton is provided by a complementary electrochemical reaction at the other electrode. These reactions are reversed to deliver electrical energy. A flow battery based on this concept can operate as a closed system. The flow battery architecture has scaling advantages over solid electrode batteries for large scale energy storage.

The invention provides an electromagnetic resonance control circuit, an electromagnetic heating device and a method for controlling a transistor. The electromagnetic resonance control circuit comprises a power module, a resonance circuit, the transistor and a controller, the resonance circuit is connected to the power module, the transistor is arranged between the resonance circuit and the ground, and used for executing the power-on or power-off operation according to pulse width modulation signals sent by the controller to control the work state of the resonance circuit, and the controller is connected to the power module and the control end of the transistor, and used for adjusting the duty ratio of the pulse width modulation signals sent to the transistor according to the change condition of voltages output to the resonance circuit by the power module to control the power-on time of the transistor. According to the technical scheme, the power-on time of the transistor can be controlled according to the voltages output to the resonance circuit, power output is increased in a low-voltage area, power output is reduced in a high-voltage area, the peak voltage and the peak current of the transistor are reduced under the condition of identical power, and therefore the transistor is effectively protected.

A new hybrid hydraulic drive system for all types of terrestrial vehicles, including vehicles running on rails, using as prime mover any of the ICE (internal combustion engine) available or turbine, battery propulsion, electric motors, fuel cells, etc. One special variable hydraulic pump connected to the prime mover acts as a “power integrator”, receiving hydraulic power from the accumulator and mechanical power from the prime mover, to supply the desired flow and pressure to the hydraulic motors during operation. A second variable pump, reloads the accumulator with the remnant power available, if any, during the whole cycle. The accumulator is quite large and it is also used as the chassis for all terrestrial vehicles. The braking energy is returned to the accumulator. The whole vehicle is controlled by electronics, and in one embodiment, using only one joystick or pedal to control speed, direction, acceleration, braking and in some cases including steering.

The invention provides an electrochemical cell based on a new chemistry for a flow battery for large scale, e.g., gridscale, electrical energy storage. Electrical energy is stored chemically in quinone molecules having multiple oxidation states, e.g., three or more. During charging of the battery, the quinone molecules at one electrode are oxidized by emitting electrons and protons, and the quinone molecules at the other electrode are reduced by accepting electrons and protons. These reactions are reversed to deliver electrical energy. The invention also provides additional high and low potential quinones that are useful in rechargeable batteries.

The invention discloses an impeller-directly-driven wind-driven generator. The wind-driven generator comprises a fan impeller, hydraulic cylinders, a cam turntable, a high-pressure oil circuit, a low-pressure oil circuit, a main frame, a tower tube, an oil tank, energy accumulators, a high-speed hydraulic motor and a generator, wherein pistons of the hydraulic cylinders are in contact with the cam turntable, the high-pressure oil circuit is connected with the hydraulic cylinders and the energy accumulators, the low-pressure oil circuit is connected with the hydraulic cylinders and the oil tank, the energy accumulators are connected with the high-speed hydraulic motor, the oil tank is connected with the high-speed hydraulic motor, and the high-speed hydraulic motor is connected with the generator. The impeller-directly-driven wind-driven generator has the advantages that the difficulties in the prior art are overcome by using a hydraulic transmission technology; firstly, unstable wind energy is converted into a stable revolving speed, which is required by a power-frequency generator, through hydraulic-volume speed regulating, so that constant-frequency control for the generator is effectively realized; secondly, hydraulic transmission is flexible power transmission, thus, a power generation system can be flexible in layout and convenient in mounting, the optimal allocation of resources and the extension of product function adjustment are facilitated, multi-aspect control can be further carried out, and then, stable system pressure and continuous power generation are realized.

The invention discloses a super capacitor and storage battery combined electromobile quick charging method and device. A combined energy storage system with a super capacitor and a storage battery combined is adopted, and during short delay of running of an electromobile, the combined energy storage system is connected with a peripheral power supply in a contact mode and a non-contact mode, and the super capacitor in the combined energy storage system quickly acquires electric energy from the peripheral power supply; after the combined energy storage system is disconnected from the peripheral power supply, the super capacitor in the combined energy storage system transmits the electric energy obtained in a short time to the storage battery in the combined energy storage system; after a number of times of short-time connection and disconnection happen between the super capacitor in the combined energy storage system and the peripheral power supply, the combined energy storage system can quickly store a large capacity of the electric energy, and accordingly the electromobile can be quickly charged in a large capacity during the driving process. The method and device can be applied to other similar mobile electrical products and devices.

The invention relates to an offshore wind power generation system with seabed compressed air energy storage. The system comprises an offshore wind power generation unit, an air compression and expansion power generation unit and a seabed high pressure air energy storing device. When electricity generated by the offshore power generation unit exceeds the demand of a power grid, an air compressor ofthe air compression and expansion power generation unit is driven by surplus electricity to fill the seabed high pressure air energy storing device with high pressure air; when the load of the powergrid is increased while the load of the offshore wind power generation unit cannot meet the demand of the power grid, high pressure air in the seabed high pressure air energy storing device is released, and an expansion machine of the air compression and expansion power generation unit acts to drive a power generator to generate power so as to provide a power load to the power grid. According to the invention, energy is stored by means of compressed air to absorb surplus power when the wind power is relatively great and the demand on the load of the power grid is low while the compressed air stored in the seabed expands to act when the wind power is relatively small or the demand on the load of the power grid is high to provide power to the power grid, so that a power regulating function of the wind power generation system is achieved.

The invention provides hydrogenated terphenyl type high-temperature nanometer heat-conduction oil, and a preparation method and application thereof. The heat-conduction oil comprises hydrogenated terphenyl heat-conductive oil, nanoparticles, a drag reducer and a dispersant, the surfaces of the nanoparticles are coated with the dispersant to form modified nanoparticles, and the modified nanoparticles are dispersed in the heat-conductive oil to form the suspension type heat-conduction oil. The nanoparticles are metal, metal oxides, nonmetal and / or nonmetal oxides. In heat-conduction mediums, the heat-conduction oil disclosed by the invention has the advantages of good thermal stability, fast heat conduction speed, uniform heating and large energy storage amount, the highest usage temperature is 460 DEG C, and the service life is 3 years or more.

The invention discloses an intelligent regional microgrid system and a control method thereof. The intelligent regional microgrid system comprises a 380V three-phase AC microgrid, a 600V DC microgridand an isolation transformer. The 380V AC bus in the 380V three-phase ACt microgrid is connected with a power distribution network through an electrical switch and the isolation transformer in sequence; the 600V DC microgrid is connected with he 380V ACt bus through 50KW bidirectional AC / DC equipment; the 380V three-phase AC microgrid is connected with monocrystalline silicon solar equipment, polycrystalline silicon solar equipment, amorphous silicon solar equipment, a miniature wind driven generator and a diesel generator. The 600V DC microgrid is connected with the monocrystalline silicon solar equipment, the polycrystalline silicon solar equipment, an iron lithium battery and a super capacitor. A multi-model prediction multi-agent distributed control method is adopted. The intelligent regional microgrid system is simple in structure, capable of monitoring various parameters and rich in function.

An electric car is composed of car body, electric driver unit, and electric accumulator unit and control system. It features that said car body has a wind driven electric generator and several solar cell boards connected electrically with said electric accumulator unit.

The invention belongs to the field of pulse power generators and discloses a permanent-magnet axial-flux semi-hollow pulse power generator comprising a rotor, a stator, a rotating shaft, a housing, and an end cap. The rotor comprises inner and outer magnetic poles, a permanent magnet and a compensation plate. The permanent magnet is arranged between the inner and outer magnetic poles of the rotor. The inner and outer magnetic poles cooperate with the permanent magnet to convert radial flux into axial flux. The compensation plate covers the tops of the inner and outer magnetic poles. The rotor rotates together with the rotating shaft. The stator is formed by pouring non-magnetic material on a winding and is fixed on the housing. The magnetic conductive material of the rotor and the non-magnetic conductive material of the stator form a semi-hollow structure. The semi-hollow pulse power generator simplifies a motor excitation system, reduces excitation loss, and increases motor efficiency. Brushless structure increases the reliability of the motor.

The invention relates to an inserted-type automobile ignition coil iron core provided with an air gap magnetic steel disc, which comprises a first U-shaped iron core and a second U-shaped iron core forming an annular iron core through butt joint; one sides of the first U-shaped iron core and the second U-shaped iron core are permanent connection ends; and an air gap is arranged between the end faces of the other sides of the first U-shaped iron core and the second U-shaped iron core. The inserted-type automobile ignition coil iron core provided with the air gap magnetic steel disc is characterized in that the magnetic steel disc of which the polarity is opposite to the magnetizing direction of the iron core is inserted into the air gap; the permanent connection end of the first U-shaped iron core is provided with a bead; the permanent connection end of the second U-shaped iron core is provided with a groove which corresponds to the bead; and the first U-shaped iron core and the second U-shaped iron core are mutually and fixedly connected after being inserted into the groove through the bead in the manner of transition fit. The inserted-type automobile ignition coil iron core provided with the air gap magnetic steel disc has the beneficial effect that the stored energy of the iron core is increased, the high-voltage input of an automobile ignition coil is improved, and an epoxy resin splicing process is not needed, so that the working environment is improved, and the physical health of operating personnel is ensured.

The invention provides a marine electric power system capable of supplying power by a novel hybrid power source. The marine electric power system comprises a distribution panel, a power supply, a battery branch, a charging device, a charging switch, a chopping control type reversible converter connected with the distribution panel and at least one driving circuit, wherein the charging switch is switched on and a discharging switch is switched off when the power supply is used for supplying power; and when a storage battery is used for supplying power, the charging switch is switched off, and the discharging switch is switched on. The marine electric power system has the advantages that a storage battery power supply can be connected into the marine electric power system, so that a harbor generator is not needed, an independent variable-frequency power supply inversion branch is not needed, energy storage of the storage battery is increased, investment cost can be lowered besides space and weight, energy is saved, and habitation comfort is improved.

The invention belongs to the field of household appliances and the energy saving technology, particularly relates to the technologies of an energy storage heat exchanger, an electric energy storage water heater and an energy storage air source water heater, provides an energy storage device which is reasonable in design, simple in structure and large in energy storage capacity, and particularly provides the energy storage heat exchanger, the electric energy storage water heater and the energy storage air source water heater. The energy storage device can be combined with the solar energy technology, combined with heating cables to form a pure electric energy storage water heater and combined with a heat pump to form the energy storage air source water heater. Therefore, by means of the water heaters, energy is saved, energy can be stored by means of off-peak electricity at night, and a prioritization scheme for peak load shifting in electricity usage is provided. Furthermore, the energy storage device can be used for storing cold or recovering waste heat of a traditional air conditioner condenser.

The invention discloses a phase-change energy-storage bidirectional thermoregulation energy-saving ground heating component, which comprises a phase-change energy storage fitting and a hydraulic ground heating device or electric ground heating device, wherein the phase-change energy storage fitting is used with the hydraulic ground heating device or electric ground heating device. The phase-change energy storage fitting can be an energy storage tube or energy storage box containing phase change materials. In heat supply in winter, the phase-change energy storage fitting is high in energy storage capacity and capable of absorbing excessive heat in phase change, the thermal insulation effect is good, and temperature is automatically controlled; and in the process of heat dissipation, the temperature is maintained in a range comfortable for human bodies, repeated heating times of a heater and circulating times of hot water are reduced, and the problems that the common ground heating device is low in energy storage capacity, local temperature is over high and temperature fluctuation is high. In refrigeration in summer, the phase-change energy storage fitting absorbs a great deal of heat by phase change to lower the indoor temperature, and is also capable of absorbing and storing excessive cold of cold water pipes or a room and releasing the cold when the temperature rises.

An energy storage sleeve comprises an outer pipe, an inner pipe, sealing covers, phase change energy storage materials and fins arranged on the outer wall of the inner pipe; the inner pipe is sleeved with the outer pipe in a concentric mode, and the two end openings of the outer pipe are sealed through the sealing covers; the two end openings of the inner pipe penetrate through the sealing covers respectively, so that a closed containing cavity is formed between the inner wall of the outer pipe and the outer wall of the inner pipe; the phase change energy storage materials are arranged inside the containing cavity; the disc-shaped fins are arranged on the outer wall of the inner pipe. The energy storage electric water heater is composed of a heat preservation shell, an electric energy storage heat exchange body and a temperature control device; the electric energy storage heat exchange body comprises the energy storage sleeves, inner pipe connecting bends and an electrical heating element; a cold water port and a hot water port are formed in one side edge of the heat preservation shell; the two end openings of every two adjacent energy storage sleeves are connected through the corresponding inner pipe connecting bend, and an S-shaped heat exchange body channel is formed; one end of the heat exchange body channel is connected with the cold water port, and the other end of the heat exchange body channel is connected with the hot water port; the electrical heating element is arranged at the end of the electric energy storage heat exchange body or on the outer wall of the corresponding energy storage sleeve.