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56 results about "Power output" patented technology

Power Output. Power Output is the ability to procure a large amount of strength in a rapid manner, and considered both muscular and neural factors. Supplements that increase power output are of interest to atheltes and strength enthusiasts.

Power coordination control method and system for wind power participating in primary frequency modulation of power grid

ActiveCN109861242AMeet Response Time RequirementsFast power supportWind motor controlSingle network parallel feeding arrangementsPeaking power plantElectricity
The invention provides a power coordination control method and system for wind power participating in primary frequency modulation of a power grid. The method comprises the steps of carrying out primary frequency modulation on a wind turbine generator system within a threshold time of the power grid frequency anomaly when the power grid has frequency disturbance with the frequency deviation beinggreater than a frequency threshold and the active power output of the wind power plant is greater than the threshold capacity; and carrying out primary frequency modulation on the wind power plant after the power grid frequency anomaly exceeds the threshold time or the frequency deviation of the power grid disturbs within the threshold frequency and the active power of the wind power plant is greater than the threshold capacity. The technical scheme provided by the invention can provide fast power support in case of frequency disturbance of the power grid, thereby meeting the response time requirement of the primary frequency modulation of an electric power system. The wind turbine generator system provides stable power support during the large frequency disturbance of the power grid by adopting a mode of inertia response and pitch angle combined frequency modulation.
Owner:CHINA ELECTRIC POWER RES INST +1

Arc welding method and arc welding apparatus

An arc welding method comprising the steps of accelerating a feeding speed of a welding wire to cause shorting between the welding wire and a base metal when a welding end signal is input during a period of arcing, retracting the welding wire backward thereafter until a wire retracting speed reaches a predetermined rate, controlling the wire retracting speed constant at this speed for a predetermined duration of time, then stopping the backward retraction of the welding wire, and then terminating a welding power output after supplying a predetermined amount of welding current for a predetermined duration of time starting from a time when opening of the shorting occurs during the backward retraction of the welding wire.
Owner:PANASONIC INTPROP MANAGEMENT CO LTD

Amphibious power propulsion device suitable for sea and air and multi-axis aircraft

InactiveCN105539831AComplex structureReduce weightPropulsion power plantsOutboard propulsion unitsRotational axisFlight vehicle
The invention discloses an amphibious power propulsion device suitable for sea and air, comprising a frame type retainer, a tilting motor, a power motor fixedly arranged at the middle part of the retainer, as well as propellers for air and propellers for sea, which are coaxially and rotatably arranged at a certain interval, wherein the propellers for air are in driving connection with the power motor through a unidirectional rotation mechanism, the propellers for sea are in driving connection with the power motor, a rotating shaft of the tilting motor is fixed at the outer side of the retainer through a connecting plate, and the rotating axis of the tilting motor is perpendicular to the rotating axis of the propellers for air and the propellers for sea. The invention also provides an amphibious multi-axis aircraft suitable for sea and air. According to the amphibious power propulsion device and the amphibious multi-axis aircraft, the same motor is adopted to simultaneously adapt to two different working environments, namely in the air and under the water, thereby reducing the weight of the amphibious aircraft for sea and air and simplifying the structure of the aircraft; and meanwhile, the tilting motor is used for controlling the direction of power output, thereby increasing the maneuverability of the amphibious aircraft and strengthening the capability of the amphibious aircraft for finishing complex tasks.
Owner:SOUTH CHINA UNIV OF TECH

Hybrid driving system and vehicle including same

ActiveCN102343796AMeet the driving needs under different working conditionsEasy dischargeGas pressure propulsion mountingToothed gearingsLow speedInternal combustion engine
The invention relates to a hybrid driving system, which comprises an internal-combustion engine, a first motor, a second motor, a power output shaft used for outputting power, a first brake, a second brake, a first transmission mechanism, and a second transmission mechanism. Two connected transmission mechanisms and brakes are arranged in the hybrid driving system. When the two brakes respectively brake, the two transmission mechanisms are in two different connection modes, namely two different transmission ratios (tap positions) are formed, therefore various working modes and corresponding tap positions can be selected according to different driving conditions of a vehicle, and driving requirements of the vehicle under different working conditions can be met further. Besides, by the adoption of the hybrid driving system provided by the invention, the low-speed torsion of the whole vehicle can be increased and the starting is quickened, moreover, the highest efficiency of the internal-combustion engine can be exerted under a high-speed condition, thereby promoting energy conversion efficiency, reducing tail gas emission and energy loss, and finally achieving the effects of low emission, low fuel consumption and high kinetic energy of the whole vehicle.
Owner:BYD CO LTD

Regional multi-microgrid dynamic networking method based on graph theory

InactiveCN107546773AImprove power supply reliabilityGood for the economySingle network parallel feeding arrangementsAlgorithmPower grid
The invention relates to a regional multi-microgrid dynamic networking method based on a graph theory. The regional multi-microgrid dynamic networking method is technically characterized by comprisingthe following steps that 1, according to a multi-objective function optimum in global economic operation and highest in system power supply reliability of an intra-regional multi-microgrid and presetconstraint conditions, an optimization model of a regional multi-microgrid is established; 2, a regional multi-microgrid dynamic networking model based on the graph theory is established by combiningwith network topology connection of a regional multi-microgrid system based on the regional multi-microgrid optimization model established in the step 1; 3, an improved particle swarm algorithm is adopted to solve the regional multi-microgrid dynamic networking model based on the graph theory, and dynamic networking of the regional multi-microgrid is achieved. By combining with interconnection and intercommunication characteristics of the regional multi-microgrid and power output constraint of the microgrid, the optimization model optimum in global economic operation and highest in system power supply reliability of the regional multi-microgrid is established, and a solution is provided for dynamic multi-microgrid networking in a regional range.
Owner:TIANJIN UNIV +1

Heat transfer printing printer

ActiveCN106926588AAvoid wastingReduce printing costsOther printing apparatusSeparated statePaper tape
A heat transfer printing printer comprises a machine base, a printing rubber roller, a printing head bracket, a printing head, a thermal transfer ribbon mechanism, a paper supplying trough, a paper dividing mechanism and a paper feeding mechanism. A lifting mechanism is additionally arranged, first fastening pieces are directly mounted on the power output end of the lifting mechanism, and the lifting mechanism drives the first fastening pieces to lift and drop, so that the printing head and the printing rubber roller are in a closed state or a separation state; meanwhile, a take-up gear and a drive gear are in a meshing state or a separation state; and in the separation state, winding of a thermal transfer ribbon is suspended, so that thermal transfer ribbon waste caused by thermal transfer ribbon empty winding at the time of printing blank data is avoided, the thermal transfer ribbon is saved by a large margin, and printing cost is reduced. Limit partition boards and limit adjustment mechanisms are arranged on the two sides of a paper feeding belt and paper feeding pinch rollers, when the printing head is locally damaged and needs to change the printing position, the positions of the limit partition boards are changed by adjusting the limit adjustment mechanisms of the corresponding limit partition boards, so that the printing head can still print normally under the condition of local damage, and the printing cost is reduced.
Owner:SHANTOU HIGH TECH ZONE JUSHENG TECH CO LTD

Double-cylinder four-piston opposed hydraulic control engine

InactiveCN102400784AReduce volumeImprove balanceInternal combustion piston enginesFree-piston engineCombustion system
The invention discloses a double-cylinder four-piston opposed hydraulic control engine. Two groups of opposed piston components are respectively provided with a group of opposed moving pistons; and joints at oil-receiving ends of the pistons correspond to those of two groups of reciprocating volume pumps on a rotating main shaft respectively. The main shaft is rotated, then the volume pump is changed to be directly coupled on the piston, and the moving direction and the positions of the inner dead point and the outer dead point of the pistons are controlled accurately so as to respectively finish the working stroke of gas inlet, compression, working expansion and exhaust, and power output. In the double-cylinder four-piston opposed hydraulic control engine, the pistons are controlled by asimple mode so as to give consideration to the advantages of the conventional engine and the hydraulic free-piston engine, and also avoid the respective defects. Other systems such as a starting system, an oil supply system, a combustion system, a cooling system and a sealing system share the existing fully-mature technology so as to be convenient for implementation of the project. The double-cylinder four-piston opposed hydraulic control engine is applicable to promotion of the engine industry.
Owner:欧益忠 +2

Electromagnetic force engine

The invention discloses an electromagnetic force engine. The engine comprises a magnetic force driving device and a control box. A control circuit and a storage battery are arranged in the control box. The magnetic force driving device comprises a plurality of electromagnetic iron core driving pistons which are arranged side by side. Output shafts of the plurality of electromagnetic iron core driving pistons are connected to one output crankshaft respectively. The control circuit makes the magnetic force driving device generate an electromagnetic driving force so as to drive the output crankshaft to output power. One end of the output crankshaft is provided with a heat dissipation fan used for heat dissipation. A connection shaft of the output crankshaft and the heat dissipation fan is provided with a driven belt pulley. The driven belt pulley is connected to an active belt pulley through a belt. The active belt pulley is installed on an output shaft of an electric generator. The other end of the output crankshaft is provided with a driving motor. The driving motor drives the output crankshaft to rotate. An output power supply of the electric generator is connected to the storage battery. One side of the magnetic force driving device is provided with a power output shaft. By using the engine of the invention, through a control switch on the control box, on-key starting control is realized; electricity generation power can be rapidly provided; a usage scope is wide and a service life is long; and control is convenient and sensitive.
Owner:戢平

Novel intelligent irrigation system

PendingCN109452054AImprove irrigation effectSolve the problem of artificial irrigationClimate change adaptationGreenhouse cultivationGreenhouseAgricultural engineering
The invention discloses a novel intelligent irrigation system. The novel intelligent irrigation system comprises a greenhouse body, a water tank is fixedly connected to the bottom of one side of the greenhouse body, a central control module located above the water tank is fixedly connected to one side of the greenhouse body, and transverse beams are fixedly connected to the inner wall of the greenhouse body; a fixation shelf located below the transverse beams is fixedly connected to the inner wall of the greenhouse body, backflow holes are formed in the fixation shelf, water flowing holes areformed in the top of the fixation shelf and communicated with the backflow holes, one ends of the backflow holes are fixedly connected with one side of the water tank through a connecting pipe, and guide grooves are formed in the tops of the transverse beams; motors are fixedly connected to one ends of the transverse beams, guide blocks are movably connected to the interiors of the guide grooves,and lead screws are fixedly connected to the power output ends of the motors, penetrate through the guide blocks, and are in threaded connection with the guide blocks. The novel intelligent irrigationsystem is reasonable in structure, automated irrigation in the greenhouse body is achieved, the manufacturing cost is low, and the system is suitable for application and popularization.
Owner:魏秋欣

Yarn separating mechanism for yarn separating machine

InactiveCN102452580AReduce the numberSimple structureFilament handlingYarnEngineering
The invention relates to a yarn separating mechanism for a yarn separating machine, and belongs to the technical field of textile machines. The mechanism comprises a base with an upright post, upper and lower yarn guide rollers, a yarn isolating comb, a magnetic powder brake, first and second driving wheels, a limit roller frame and a terminal yarn conveying roller, wherein a guide rail bracket is arranged on the right side of the base and provided with a group of yarn bundle guide rollers; the upper and lower yarn guide rollers and the yarn isolating comb are arranged on the upright post; a group of yarn isolating rollers extend from the yarn isolating comb; the magnetic powder brake is arranged on the left side of the base; a magnetic powder brake power output shaft of the magnetic powder brake is fixedly provided with a magnetic powder brake driving wheel; the second driving wheel is fixed on a lower yarn guide roller shaft; the first driving wheel is fixed on an upper yarn guide roller shaft; the limit roller frame is fixed at the upper end of the upright post and provided with a pair of limit rollers; a yarn passing channel is formed by a gap between the pair of limit rollers; the terminal yarn conveying roller is arranged on the upper part of the upright post through a pivot; the upper and lower yarn guide rollers are positioned on one side of the upright post; and the first and second driving wheels are positioned on the other side of the upright post. The occupied area can be saved; the mechanism is suitable for separating a yarn bundle into single yarns in textile industry and has a high generalization degree; and using cheapness is reflected.
Owner:常熟市荣伟纺织有限公司

Maximum power output control method suitable for controlling variable speed wind turbine group through concentrated variable flow

InactiveCN103939287AAchieve maximum power outputWhen reducing the uneven distribution of wind speedWind motor controlMachines/enginesFrequency changerHigh-voltage direct current
The invention discloses a maximum power output control method suitable for controlling a variable speed wind turbine group through concentrated variable flow. According to n wind turbines which are controlled by the same converter in a concentrated mode and are constant in rotating speed and different in input air speeds, the concentrated converter and overall wind turbine propeller pitch variation mechanisms are controlled in a coordinated mode, and therefore maximum power output of the wind turbine group is achieved. A control objective of the concentrated converter is that the speed of the wind turbine with the higher wind speed approaches to the optimal rotating speed as much as possible and a control objective of the propeller pitch variation mechanisms is that the highest wind energy utilization rate of the wind turbine with the lower wind speed is obtained at the unified rotating speed of the wind turbine group. The optimal calculation method is adopted and the frequency conversion alternating current bus frequency and the overall wind turbine propeller pitch angle which correspond to the maximized output power of the wind turbine group are worked out. The maximum power output control method is suitable for the variable speed wind turbine group controlled by an AC-DC converter in a high-voltage direct current power transmission system and an AC-AC frequency converter in a frequency division power transmission system.
Owner:GUANGDONG UNIV OF TECH

Vertical-axis wind driven generator designed based on lever principle

The invention relates to a vertical-axis wind driven generator designed based on a lever principle, in particular to a technology using a stretchable and foldable arm of force to unfold fan vanes outwards, using the lever principle to magnify weak wind force into large-torsion power output at a low rotation speed, and pushing the generator to generate electricity. The wind force can be effectively utilized by using the technology, and the high-applicability wind driven generator can be manufactured.
Owner:郭鹏

Electric power overhead cable sag adjusting device

InactiveCN114374182AAchieve regulationGuaranteed rateAdjusting/maintaining mechanical tensionPower cableElectric machine
An electric power overhead cable sag adjusting device relates to the field of electric power cables. The invention aims to solve the problem that in the prior art, only sag detection can be carried out, sag processing cannot be carried out in time, and then the accident occurrence probability is increased. A power output shaft of a motor is coaxially connected with one end of a screw, the screw is in threaded connection with a nut, one end of an upper swing arm is hinged to one end of a lower swing arm, the other end of the upper swing arm is hinged to a motor shell, the other end of the lower swing arm is hinged to the outer circumferential face of the nut, and the upper swing arm, the lower swing arm and the screw are located on the same plane. An electromagnetic energy taking coil of the high-voltage cable induction power taking device is fixed to one end of the upper swing arm, the control part collects sag in real time through the sag monitoring device and compares the collected sag with a standard threshold value range, when the collected sag is larger than the upper limit of the standard threshold value range, the driving motor rotates forwards, and otherwise, the driving motor rotates backwards.
Owner:江志磊

Ultrasonic welding device

PendingCN108247193AOvercoming usage defectsSimple designNon-electric welding apparatusUltrasonic weldingEngineering
The invention relates to the technical field of welding, in particular to an ultrasonic welding device. The ultrasonic welding device mainly comprises a driving mechanism, a head portion and an energyexchange component and is characterized in that a supporting frame is arranged in the head portion and connected with a power output end of the driving mechanism, and the energy exchange component isarranged in front of the head portion and fixedly connected with the supporting frame. By structural optimization and improvement, a welding head is capable of flexibly adapting to incoming materialdirections in a welding process, adaptability is achieved no matter materials come from a longitudinal direction or a transverse direction and from the bottom of the head portion or left and right sides of the head portion, defects in use of traditional welding equipment are well overcome, and more supply choices are provided in an ultrasonic welding process. Especially in application to integration of automatic equipment, a wide application range is realized, production efficiency is greatly improved, a design structure of the automatic equipment is simplified, and design cost of the automatic equipment is reduced.
Owner:KEPU ULTRASONIC ELECTRONICS TECHCAL

High-frequency output AC-AC phase shift frequency conversion circuit, motor, and motor control system

ActiveCN107017782AWide range of changesEasy to controlAC motor controlConversion without intermediate conversion to dcEngineeringCirculating current
The invention discloses a high-frequency output AC-AC phase shift frequency conversion circuit, a motor, and a motor control system. The circuit comprises three groups of control switch groups which are connected between a three-phase power input end and a frequency conversion output end. The three-phase power input end is connected with a three-phase power supply, and three frequency conversion output connection ends of the frequency conversion output end are respectively connected with three power connection ends. The input end of each control switch group is connected with a power supply of one phase of the three-phase unit. Each control switch group is provided with three control switches in a parallel manner, wherein the three control switches are sequentially connected. Each frequency conversion output connection end is connected with the output end of one control switch of each control switch group. When each control switch group is connected, the phase shift of the three-phase power outputted by the frequency conversion output end is carried out clockwise or anticlockwise. The beneficial effects of the invention are that the circuit achieves the AC-AC frequency conversion operation (greater than 50Hz), and enlarges the AC-AC frequency conversion speed regulation range; the circuit is convenient to control, is reliable in operation, and also can achieve the operation (greater than 50Hz) in a circulating current system.
Owner:四川大学锦城学院

Hydraulic cylinder device capable of detecting whether temperature of hydraulic cylinder exceeds safe use threshold

InactiveCN108506280AImprove securityFluid-pressure actuator safetyFluid-pressure actuator testingLower limitHydraulic cylinder
The invention discloses a hydraulic cylinder device capable of detecting whether the temperature a hydraulic cylinder exceeds a safe use threshold. The hydraulic cylinder device comprises a mounting base and is characterized in that the mounting base is located on the ground, a base mechanism is arranged above the mounting base, an air cylinder body mechanism is arranged above the base mechanism,an air cylinder piston mechanism is arranged in the air cylinder body mechanism, a movable end mechanism is arranged above the air cylinder piston mechanism, a temperature sensor mechanism is arrangedon the outer side of the air cylinder body mechanism, a controller and a battery box are arranged on the outer side surface of an air cylinder body, a power input end of the controller is electrically connected to the battery box, a power output end of the controller is electrically connected to a lower limit switch, an upper limit switch and a temperature sensor, and a signal input end of the controller is electrically connected to the lower limit switch, an upper limit switch and the temperature sensor. The hydraulic cylinder device has the beneficial effects of being simple in structure and high in practicability.
Owner:湖北景悦网络科技有限公司
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