216results about How to "Large energy storage" patented technology

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 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 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.

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 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.

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 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.