39results about How to "Improve power output capability" patented technology

A sonic actuator including a multi-layer membrane having a non-metallic elastomeric dielectric polymer layer with a first surface and a second surface, a first compliant electrode layer contacting the first surface of the polymer layer, and a second compliant electrode layer contacting the second surface of the polymer layer. The actuator further includes a support structure in contact with the sonic actuator film. Preferably, the non-metallic dielectric polymer is selected from the group consisting essentially of silicone, fluorosilicone, fluoroelastomer, natural rubber, polybutadiene, nitrile rubber, isoprene, and ethylene propylene diene. Also preferably, the compliant electrode layer is made from the group consisting essentially of graphite, carbon, and conductive polymers. The support structure can take the form of grid having a number of circular apertures. When a voltage is applied to the electrodes, portions of the film held at the aperture of the support structure can bulge due to the electrostriction phenomenon. The resultant “bubbles” can be modulated to generate sonic vibrations, or can be used to create a variable surface for airflow control.

The invention provides a hybrid power drive system. The system comprises an engine, a first motor and a second motor which are electrically connected with a battery unit, a speed variator, a first clutch, a second clutch and a transmission shaft, wherein, the engine, the speed variator, the first motor, the first clutch and the second clutch are connected with the second motor in sequence, and the transmission shaft is connected between the first clutch and the second clutch. Because the speed variator is arranged between the engine and the first motor, the problem of the matching of the rotating speed between the engine and the motor can be solved. When a whole vehicle is moved in high speed, the engine can perform better matching of the rotating speed with the first motor and/or the second motor through the speed variator, to ensure the three parts to be moved in parallel or in series, thereby the whole vehicle can still have better accelerating ability under the high speed condition.

Fuel Cell Having a Hydrophilic Substrate Layer A fuel cell power plant includes a fuel cell having a membrane electrode assembly (MEA), disposed between an anode support plate and a cathode support plate, the anode and/or cathode support plates include a hydrophilic substrate layer having a predetermined pore size. The pressure of the reactant gas streams is greater than the pressure of the coolant stream, such that a greater percentage of the pores within the hydrophilic substrate layer contain reactant gas rather than water. Any water that forms on the cathode side of the MEA will migrate through the cathode support plate and away from the MEA. Controlling the pressure also ensures that the coolant water will continually migrate from the coolant stream toward the anode side of the MEA, thereby preventing the membrane from becoming dry. Proper pore size and a pressure differential between coolant and reactants improves the electrical efficiency of the fuel cell.

A windmill apparatus includes tower, a tower-mounted hydraulic pump driven by windmill blades, and hydraulic lines connected to a ground storage tank and to a number of separate generator units. Each generator unit includes a hydraulic pump and an electrical generator. In operation, upon startup, as the wind propels the propeller-driven pump the hydraulic fluid circulates freely until a pre-set pressure is achieved, upon which a diverter valve diverts all the fluid pressure to the first generator unit. When the first generator unit is powered sufficiently to achieve a stable output voltage, a subsequent one of the remaining generator units is powered up until its output voltage is stabilized, with this process continuing as long as there is a surplus of hydraulic power available to power up additional units to take full advantage of all of the available wind power.

The present invention relates to a method for preparing a microbial fuel cell, wherein the method includes: (i) inoculating an anodic liquid medium in contact with an anode of the microbial fuel cell with one or more types of microorganisms capable of functioning by an exoelectrogenic mechanism; (ii) establishing a biofilm of the microorganisms on and/or within the anode along with a substantial absence of planktonic forms of the microorganisms by substantial removal of the planktonic microorganisms during forced flow and recirculation conditions of the anodic liquid medium; and (iii) subjecting the microorganisms of the biofilm to a growth stage by incorporating one or more carbon-containing nutritive compounds in the anodic liquid medium during biofilm formation or after biofilm formation on the anode has been established.

A 4-wheel drive system of an incremental electric vehicle and a control method thereof are disclosed, the system is equipped with a range extender system, External clutch and rear motor controller, the range extender system is connected to the front speed reducer through an external clutch, A rear motor controller is sequentially connected with a rear drive motor and a rear reducer, A range extender system includes a generator, generator controller, engine, engine controller, Internal clutch and lift controller, wherein the generator is connected with the front reducer through an external clutch, the engine and the generator are connected through an internal clutch, At that same time, the range increase controller is connected with the engine controller and the generator controller respectively, The rear motor controller is connected with the whole vehicle controller, and the power battery is connected with the generator controller and the rear motor controller respectively. The four-wheel drive system of the incremental electric vehicle improves the power performance and energy utilization rate of the electric vehicle, and also increases the driving range.

The invention discloses an ocean current energy integrated power generation device based on a magnetic flux modulation composite motor, which includes a low-speed rotor, a magnetic-regulation armature, and a high-speed rotor. Among them, the low-speed rotor is composed of guide vanes, low-speed rotor back iron and low-speed rotor permanent magnet; the field-adjusting armature is composed of field-regulating pole pieces and armature winding; the high-speed rotor is composed of high-speed rotor back iron and high-speed rotor permanent magnet. The field regulating armature is arranged between the high speed rotor and the low speed rotor, a first air gap is formed between the low speed rotor and the field regulating armature, and a second air gap is formed between the field regulating armature and the high speed rotor. The invention perfectly integrates the turbine, gear box and generator in the traditional ocean current power generation system, and adopts an integrated structure to realize energy capture and energy conversion. The power generation device has the advantages of compact structure, high conversion efficiency, and overload protection, and has high power density, no contact between input and output, reduced maintenance costs, low noise, and little pollution to the marine environment.

The invention relates to the technical field of automobile batteries and in particular to a power battery low-temperature protection system and a protection method thereof. The system comprises a temperature monitoring circuit, a control module and a heating module, and the temperature monitoring circuit is used for conducting when it is monitored that the environment temperature of a power battery is lower than a first threshold value and sending a wake-up signal to the control module; the control module is used for sending a heating instruction to the heating module when receiving the wake-up signal; and the heating module is used for heating the power battery according to the heating instruction sent by the control module. By applying the system and the method, the temperature of the battery can be automatically monitored, the heating module can heat the power battery irregularly, so that the temperature of the battery is always in a proper working range in a low-temperature environment, the battery can be charged and discharged directly, the charging time of the battery is shortened, meanwhile, when a user needs to use the vehicle, the power battery can discharge directly, andthe power output capacity of the battery is improved.

The invention discloses a stretchable arched array friction nanometer power generation fabric and a preparation method thereof. The stretchable arched array friction nanometer power generation fabric comprises transverse arched array fiber strips A and longitudinal fiber strips B, and the fabric is realized by utilizing a traditional transverse and vertical weaving mode. The transverse arched array fiber strip A comprises a first conductive layer, a supporting layer and a second conductive layer; the longitudinal fiber strip B comprises a first polymer, a stretchable conductive layer and a second polymer layer; wherein the first polymer layer and the second polymer layer are polymer layers with microstructures on the surfaces. The stretchable arched array friction nanometer power generation fabric has both stretchability and high electric energy output performance, can be assembled with a human body in a conformal mode, achieves conversion of human body movement mechanical energy into electric energy, and provides electric energy for wearable commercial electronic products.

The invention discloses a jet afterburning compressed air energy storage system. The system comprises an energy storage system, an electric energy release system and a compression heat storage device. The energy storage system and the electric energy release system are both connected with the compression heat storage device; the electric energy release system comprises a first heat exchanger, a second heat exchanger, a plurality of expansion machines, a generator, a combustor and an ejector; the first heat exchanger is connected with the second heat exchanger or the first expansion machine; an air inlet of the combustor is connected with any one expansion machine; a gas outlet of the combustor is connected with the second heat exchanger; and any two adjacent expansion machines are connected through the ejector. A pressure flue gas outlet end of the second heat exchanger is connected with the ejector. According to the system, the utilization advantage of the domestic non-afterburning compressed air energy storage technology on compression heat is fully absorbed, on the basis of utilizing the compression heat, natural gas combustion is properly carried out, the power capability of high-pressure air in the expansion machines is improved, and the efficiency and the electric energy output capability of the energy storage system are effectively improved.

The invention discloses a battery system integrated with different chemical systems, which comprises a first battery pack comprising a plurality of first battery cells connected in series and/or in parallel; the second battery pack comprises a plurality of second single batteries which are connected in series and/or in parallel; the first battery monomers and the second battery monomers are alternately arranged in the width or length direction of the module, and at least one large surface of each first battery monomer is attached to at least one large surface of each second battery monomer; the first battery state detection unit is connected with the first battery pack; the second battery state detection unit is connected with the second battery pack; the battery control unit is respectively connected with the whole vehicle control unit, the first battery state detection unit, the second battery state detection unit, the first battery pack and the second battery pack of the vehicle; and the first battery pack and the second battery pack are controlled to independently or jointly output power outwards according to battery parameters collected by the first battery state detection unit and the second battery state detection unit and an instruction of the whole vehicle control unit.

The invention discloses a novel composite material and a swing type friction nanometer generator using the material, the composite material is of a layered structure, and the composite material comprises a first electrode layer, an insulating layer, a second electrode layer, a PTFE friction layer, a third electrode layer, a BaTiO3 piezoelectric composite layer and a fourth electrode layer from top to bottom in sequence; the first electrode layer, the insulating layer, the second electrode layer and the PTFE friction layer are of an arch structure. The swing type friction nanometer generator comprises an adjusting support, an eccentric rotating wheel, a shell, a novel composite material, a rotating shaft and a bearing. The adjusting support comprises a base and an adjusting screw rod fixed on the base; the eccentric rotating wheel is arranged in the shell, the shell is fixed to the base, and the novel composite material adheres to the inner wall of the shell. The eccentric rotating wheel is composed of three solid blades and three hollow blades, and is fixed on the adjusting screw rod through a rotating shaft. The novel composite material provided by the invention simultaneously has triboelectric and piezoelectric characteristics, and can generate higher charge output when being rubbed by pressure.

Systems and methods for operating an electric energy storage system are described. The systems and methods include ways of coupling electric energy storage cell stacks to an electric conductor or bus. The coupling is performed to reduce current flow through contactors and to increase a life span of the contactors.

The invention relates to a high-speed direct current switch reluctance generator converter system. The system comprises four-phase windings, six switch tubes, seven diodes, five capacitors, an inductor and an isolation converter. Converter loops of the first phase winding and the second phase winding have simple structures and the same control modes, and a third phase winding and a fourth phase winding are asymmetrically integrated conversion structures. By depending on the relatively complex converter loops and the regulation and control of the fourth phase winding, the measure of enhancementof the power generation capacity of the fourth phase winding itself can be achieve such as a follow current stage, and the fourth phase winding can be mutually promoted with the third phase winding to indirectly improve the power generation capacity of the first phase winding and the second phase winding; and besides, the structure is high in expandability, the output end is connected in series to increase the voltage, the total excitation source of each phase winding is regulated according to the duty ratio of a sixth switch tube so that the high-speed direct current switch reluctance generator converter system is a set of high-performance conversion system, is especially suitable for the high-speed direct current switch reluctance generator application field, and can be taken as one ofthe generator in the internal direct current microgrid in a full-electric aircraft.