67results about How to "Improve power output efficiency" patented technology

Processes, machines, and articles of manufacture that may management power conversion as provided. This may include circuit topology or management that serves to improve power conversion efficiency from a DC waveform to an AC waveform. This circuit topology or management may include considering and managing the voltage across a DC-link capacitive bus and the phase angle output of an AC waveform in order to influence or improve power conversion characteristics or efficiency.

A low carbon emissions, combined cycle power plant utilizes vortex nozzles (38) operative at cryogenic temperatures to separate out carbon dioxide (39) from the flue gases. Complexity of the plant is minimized by operating a gas turbine engine component (10) of the plant at a turbine exhaust pressure of at least 2 bar, so that downstream components of the plant, including a heat recovery steam generator (19A), a gas cooling system (30, 33, 36), and the inlets of the vortex nozzles, all operate at the same pressure of at least two bar. To increase carbon dioxide concentration in the flue gases (37) that pass through the vortex nozzles (38), and thereby increase efficiency of carbon dioxide removal from the flue gases, up to 50% of the flue gases that exit the heat recovery steam generator (19A) may be recirculated to a location (L, FIG. 4)) in the compressor of the gas turbine engine where the pressure of the compressor air matches the flue gas pressure.

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 present invention belongs to the field of ultrasonic technologies and relates to an apparatus and method for quickly tracking the mechanical resonance frequency of a transducer. The fast trackingdevice for the mechanical resonance frequency of the ultrasonic transducer of the invention comprises a piezoelectric ultrasonic transducer, a voltage sensor, a current sensor, a matching inductor, aD-class power amplifier, an arbitrary waveform generator DDS, a microprocessor, a phase detecting circuit, a peak detecting circuit and an amplifying and filtering circuit; the microprocessor controlsthe DDS to output sinusoidal driving signals; the piezoelectric ultrasonic transducer is driven through the D-class power amplifier; at the same time, the current sensor collects current flowing through the piezoelectric ultrasonic transducer; the voltage sensor collects the voltage of the two ends of the piezoelectric ultrasonic transducer; noise and harmonic wave filtering and amplification areperformed on two paths of sampling signals through the amplifying and filtering circuit; and the magnitude of the complex admittance of the transducer is calculated, and the resonant state of the transducer is judged. Thereby, the mechanical resonance frequency of the transducer can be obtained through demodulation. The apparatus and method of the invention are mainly applied to ultrasonic detection conditions.

A variety of solar module package structures is obtained by disposing an optical sheet on the top surface of the solar module and / or between the glass plate and the solar cell. Through the optical sheet with surface configurations, anti-reflection and light trapping capability of the solar module package structure is improved and the power output is increased.

The invention discloses a radio frequency power amplifier with high linearity and high efficiency. The radio frequency power amplifier with high linearity and high efficiency comprises five capacitors: C1, C2, C3, C4 and C5, four resistances: R1, R2, R3 and R4, four N-channel metal oxide semiconductor (NMOS) pipes: M1, M2, M3 and M4 and two inductances: L1 and L2. Input radio frequency signals (Rfin) are respectively input to grids of the M1, M2 and M4 NMOS pipes through the C1, C2 and C3 capacitors, Vb1, Vb2, Vb3 and Vb4 bias voltages respectively provide direct current to the M1, M2, M3 and M4 NMOS pipes through the R1, R2, R3 and R4 resistances, drain electrode of the M2 NMOS pipe is connected with source electrode of the M4 NMOS pipe, and drain electrode of the M1 NMOS pipe is connected with source electrode of the M3 NMOS pipe. The radio frequency power amplifier with high linearity and high efficiency enhances puncture-resisting performance of a transistor, improves output power, and achieves high linearity and high efficiency of the power amplifier.

The disease revealed a group control system of intelligent sun trackers. The group control system comprises a solar tracker group composed of multiple groups of solar tracking brackets, wherein each group of solar tracking bracket comprises one solar tracking bracket, a control box of the solar tracking bracket is internally provided with an extreme value searching device, a photovoltaic power output unit of the solar tracking bracket operates independently and is connected with a DC converter, and the DC converter is connected with a direct load and the extreme value searching device to form feedback of maximum power; and each group of solar tracking bracket is configured to have an annular control bus access function, an annular control bus is connected with a motor controller of each solar tracking bracket, data sharing is conducted by means of the annular control bus, and the annular control bus comprises a control end, so that the effects of acquiring the maximum output power of the solar trackers and improving performance of a photovoltaic array by the solar trackers through controlling the plurality of solar tracking brackets to rotate synchronously by using one solar tracking bracket are achieved. The group control system can be widely used in the field of solar trackers.

The invention relates to a power regulator of a composite power source of a fuel battery, which is formed by cascade connection of a DC / DC voltage converter and a current regulator; the DC / DC voltage converter comprises a DC / DC circuit, a DC / DC controller, a first voltage sensor, a second voltage sensor which form a closed-loop control circuit of the output voltage of the fuel battery. The current regulator comprises a current regulating circuit, a current regulating circuit controller and a current sensor which form the closed-loop control circuit of the output current of the fuel battery. The power regulator of the composite power source of the fuel battery further comprises a voltage predictor controller of the fuel battery. The power regulator regulates the power output by the fuel battery, thus leading the fuel battery to output electric energy with rating output power when the load changes. The power regulator not only can ensure the fuel battery to provide stable electric energy for the load, but also can effectively improve the service life of the fuel battery.

The invention provides an insulating luminescent material, a solar battery back plate comprising the insulating luminescent material, and a solar battery component. The insulating luminescent material comprises an insulating substrate, an ultraviolet absorbing material and a long afterglow luminescent material. The insulating luminescent material has the characteristic of storing photons as comprising the long afterglow luminescent material and can be used as a night luminescent material; moreover, the insulating luminescent material contains the ultraviolet absorbing material, so that ultraviolet rays can be prevented from aging a device with the insulating luminescent material; meanwhile, as containing the insulating substrate, the insulating luminescent material is particularly suitable for light-emitting equipment, power generating equipment and the like and has a wide application range; particularly, when the insulating luminescent material is used for making the solar battery back plate, the temperature of the solar battery back plate is reduced, and the power output efficiency of the solar battery component is improved.

The invention provides a photovoltaic power generation distribution type maximum power output system, which comprises a solar energy collection device, a forestage control module series set, a backstage control module set and an inverse conversion module, wherein the solar energy collection device comprises more than two groups of photovoltaic modules which collect solar energy, convert the solarenergy into direct current power and send the direct current power to forestage control modules; the forestage control module series set comprises more than two groups of forestage control modules which correspond to the photovoltaic modules one by one and are connected in series, and the forestage control modules convert a voltage and then output an electric current to backstage control modules;the backstage control module set comprises more than two backstage control modules which are connected in parallel, and the backstage control modules perform direct current voltage conversion and send the conversion result to the inverse conversion module; and the inverse conversion module outputs the electric current. In the invention, a current and voltage two-stage control mode is adopted, thecontrol structure eliminates influences on adjacent modules, the photovoltaic modules in the same group have no influences on one another and are not required to acquire the information of the adjacent modules, so that the output control of the module is simplified, the control over the power output and the stability and reliability of the power generation system are improved.

A ring disk reciprocating power conversion device includes a planetary gear set and at least one off-center control panel set. The off-center control panel set includes a rotary disk pivoted on the opposite end of the planetary gear set, which can be guided by the self rotation of the plurality of planet wheels of the planetary, forcing the rotary disk to do a reciprocating movement in limited amplitude. The periphery of the rotary disk forms annular chambers at intervals. The annular chambers accommodate a medium pressure forming medium. More than one variable volume chambers are formed at intervals in the annular chambers, and the periphery of the rotary disk is provided with equal amount of spacers as the variable volume chambers. The spacers can compress or draw the medium and further regulate and stop the self rotation of the planet wheel.

The invention discloses a power system based on new energy vehicles, and the power system is suitable for improving dynamic efficiency of the new energy vehicles. The power system includes a vehicle controller, a first battery device and a second battery device, and the vehicle controller can receive a power demand signal; the first battery device and the second battery device are connected in parallel, the first battery device and the second battery device are separately connected with the vehicle controller, and the first battery device and the second battery device are both connected with amotor; the first battery device can separately output a drive current and a charging current according to the power demand signal and a residual electricity value of the second battery device, the drive current can drive the motor to rotate, and the charging current can charge the second battery device; and the second battery device can output a compensating current according to the power demandsignal, and the compensating current and the drive current are matched to drive the motor to operate. The power system based on the new energy vehicles has the advantages of high power output efficiency, steady power output and long battery service life.

The invention relates to a green power machine, which is provided with one or N box body combinations. The green power machine consists of a motor, a power generator, a reinforcement transmission mechanism, a concentrative controller and a battery; the motor is connected with the input shaft end of the reinforcement transmission mechanism by power; the power generator is connected with the output shaft end of the reinforcement transmission mechanism by power; the battery is connected with the input end of the concentrative controller by a circuit; the power generator is connected with the input end of the concentrative controller by a circuit; the output end of the concentrative controller is connected with the motor by a circuit; the output end of the concentrative controller is connected with a battery charger by a circuit; the concentrative controller is provided with an inverter, a frequency converter, a transformer, a charger, a component and a circuit board; the reinforcement transmission mechanism is provided with four groups of concentric coincident crankshaft connecting rod reinforcement mechanisms and four groups of reducing mechanisms. The green power machine has the advantages of high power output efficiency, extremely little energy dissipation, zero exhaust, being beneficial for miniaturized and medium-sized production, and being able to produce the green power machines with small power to large power.

The invention discloses an efficient and high-power vehicle-mounted DCDC power supply. The output positive electrode of a vehicle-mounted fuel cell is connected with a first contactor and a first electric reactor in sequence through a fuse; the output negative electrode of the fuel cell is connected with a second contactor; the output ends of the first electric reactor and the second contactor areconnected with a first capacitor in parallel; the first capacitor is connected with a filter through a DC / DC conversion circuit; the output positive electrode end of the filter is connected to a loadpower battery through a reversion preventing diode; and the DC / DC conversion circuit adopts a dual Boost topological structure which is formed by a primary boost circuit and a secondary boost circuitin a reversely staggered and parallel connection manner. The instable low voltage output by the fuel cell is converted into a stable high voltage to be stored in the power battery to be used by equipment and the driving motor on the vehicle; and the power supply is high in power output efficiency, small in size and light in weight, less in raw material loss and low in cost.

The invention provides an active power control method and device for a photovoltaic power station. The method comprises the steps of judging an active instruction according to the current active powervalue acquired in advance, calculating the difference value between the instruction power and the current active power, judging the relation between the difference value and the power control dead zone, checking the active instruction according to the active control locking working condition, checking whether the active instruction is in the active power output range of the photovoltaic power station or not, assigning the active instruction according to the difference value and the adjusting dead zone, an active control locking condition, and the judgment result of the active instruction andan active power output range. The device comprises an instruction judging module, an instruction checking module and an instruction assigning module. According to the technical scheme, the photovoltaic inverter can work preferentially in the maximum efficiency interval in the active power control process, so that the inverter keeps higher power conversion rate, and the output efficiency of the whole power of the photovoltaic power station is improved.

The invention relates to an installation method of a diesel engine provided with shock absorbers on a base and relates to the field of mechanical installation projects. The installation method includes the steps of S1, mounting the base, whose top includes a base support face; S2, calculating compression of each shock absorber, measuring the central height between the support face of the base and the lower surface of the base of the diesel engine, and producing an absorber base plate below each shock absorber; S3, connecting multiple shock absorbers to the lower surface of the base of the diesel engine, placing multiple absorber base plates on a support top plate, and seating the diesel engine on the absorber base plates; S4, grinding machining allowance of each absorber base plate until curvature and offset of the diesel engine are satisfactory to the centering standard, and fixedly welding each absorber base plate to the base support face; S5, fixedly connecting the base of each shock absorber, the absorber base plates and the base support face through bolts and nuts. The method has the advantages that the centering demand is low, power output efficiency is high, the size is small, the weight is light and installation is flexible.

The invention provides a direct-current motor which comprises a rotor core set, a stator core set, a connecting shaft, a bearing, a stator base, a rotor base and a flange. The rotor core set is coaxially sleeved with the stator core set, the bearing is nested in the annual space between the stator core set base and a rotor shaft head, and a clamping spring is clamped in the annular slot of the stator core set base and the annular slot of the outer edge of the bearing; the flange is connected on the rotor shaft head provided with screw holes and is fixed to the connecting shaft through bolts. By improvement of the physical structure of the motor, utilization rate of the space of the motor is increased, power output efficiency is increased, power generation efficiency can be greatly improved by the motor manufactured in the physical structure, and resources are saved.

The invention discloses a solar tracker control system based on inverter output power. The system comprises a photovoltaic cell array, a photovoltaic power output unit, a driving source for controlling the photovoltaic cell array to rotate and a motor controller. The system also comprises an inverter and an extreme value searcher. The inverter collects electric power signals of the photovoltaic power output unit, and outputs the collected electric power signals to the extreme value searcher; the extreme value searcher calculates the ideal placing angle of the photovoltaic cell array according to the received electric power signals, and feeds back the angle value to the motor controller; and the motor controller compares the received placing angle of the photovoltaic cell array and the ideal placing angle of the photovoltaic cell array, and controls the driving source to drive the photovoltaic cell array to rotate to the ideal placing angle. The solar tracker control system can obtain the maximum output power of the photovoltaic cell array under different weather conditions through the extreme value searcher, thereby improving generating capacity of the photovoltaic cell array; and the system can be widely applied to the solar tracking field.

The invention relates to a photovoltaic panel intelligent adjustment output method. The photovoltaic panel intelligent adjustment output method comprises steps that electric energy collected by a photovoltaic panel is outputted through an output power control module; panel temperature data of the photovoltaic panel is collected through a temperature collection module, and the panel temperature data is sent to a main control panel; the output power of the output power control module is adjusted according to the panel temperature data to control electric energy output; when the panel temperaturedata exceeds a preset value, the temperature control module is controlled through the main control panel to adjust the panel temperature of the photovoltaic panel. The photovoltaic panel intelligentadjustment output method is advantaged in that by collecting the panel temperature data of the photovoltaic panel and controlling the output power, problems of shortened service life and unstable workof the photovoltaic panel due to temperature factors are avoided, the photovoltaic panel can be controlled to work within a reasonable temperature range, and electric energy output efficiency of thephotovoltaic panel is improved.

The invention relates to an efficient output system of a photovoltaic panel. The efficient output system comprises a main control panel, a photovoltaic panel, a temperature acquisition module, a temperature control module and an output power control module. The photovoltaic panel is suitable for outputting electric energy through the output power control module. The temperature acquisition moduleis suitable for acquiring panel temperature data of the photovoltaic panel and sending the panel temperature data to the main control panel. The main control panel is suitable for adjusting the outputpower of the output power control module according to the panel temperature data so as to control electric energy output. When the panel temperature data exceeds a preset value, the main control panel is suitable for controlling the temperature control module to adjust the panel temperature of the photovoltaic panel. According to the invention, by acquiring the panel temperature data of the photovoltaic panel and controlling the output power, the problems of shortened service life and unstable work of the photovoltaic panel due to temperature factors are avoided, the photovoltaic panel can becontrolled to work within a reasonable temperature range, and the electric energy output efficiency of the photovoltaic panel is improved.

The invention discloses a multilevel rocker arm detent motor, which is made up of one box or several box groups. The box is assembled with electric motor, power generator, accumulator, coarse oil pump and electric circular centralized controller. It includes the electric circular centre controller and the coarse oil pump spraying and lubricating device are laid down additionally; the reinforcement transmitting device is the core part, namely the detent clutch. The energy is changed into mechanical energy through the physical principle and the electric circulation principle, the power output is high, and it can save energy are without environment pollution.

The invention provides a mechanical stepped speed changer special for a harvester, which has low oil consumption and is convenient to operate. The mechanical stepped speed changer comprises a control unit and a gear speed change unit, wherein the control unit is connected with the gear speed change unit; the gear speed change unit comprises a power input shaft system and a power output shaft system which are arranged in parallel sequentially; an intermediate shaft system is arranged between the power input shaft system and the power output shaft system; the intermediate shaft system comprises an intermediate shaft, and an intermediate gear wheel and an intermediate pinion wheel which are arranged on the intermediate shaft; and shaft sleeves are arranged outside the intermediate gear wheel and the intermediate pinion wheel respectively so as to realize axial positioning.

The invention discloses a distributed air-cooled fuel cell system and a spacecraft. The system comprises a hydrogen storage module, a fuel cell module, an electric control module and a first temperature sensor, wherein the first temperature sensor is used for monitoring the environment temperature of the system; the hydrogen storage module is used for supplying low-pressure hydrogen to the fuel cell module; the fuel cell module comprises at least three air-cooled hydrogen fuel cells which are connected in a series-parallel mode, and each cell comprises a second temperature sensor and a rotating speed and rotating direction adjustable fan; and the electric control module comprises a controller located in the center of the system, and the controller is used for adjusting the rotating direction of each fan according to the environment temperature and conducting closed-loop control over the rotating speed of the fan according to the running temperature and the generated power of each battery. According to the system, multi-target closed-loop rotating speed control is conducted on the fan by combining the environmental characteristics of the inner battery and the thermal management requirement of the system, the fan is controlled to rotate according to the environmental temperature, and the overall power generation output efficiency of the system is improved.

The invention relates to a fuel engine with a swash plate shaft. The fuel engine comprises a housing, pistons, a connecting rod, bearings, a main shaft, a swash plate, swash plate strengthening clamping blocks, spark plugs and exhaust pipes. One swash plate strengthening clamping block, the swash plate and the other swash plate strengthening clamping block are fixedly installed on the main shaft in order and form a rotatable swash plate shaft; the pistons fixed on two ends of the connecting rod and the end portions of the housing form two combustion chambers, and the spark plugs are installed in the combustion chambers; and the connecting rod is provided with two bearings, the swash plate is inserted between the two bearings, and the swash plate is in close fit with the bearings and can slide well. The fuel engine with the swash plate shaft is high in power output efficiency, under the condition of certain discharge capacity, the fuel engine is small in size and light in weight, and the fuel engine can be applied to aircrafts.

The invention discloses a floating and sinking bidirectional acting type power output device. The floating and sinking bidirectional acting type power output device comprises a floating and sinking power device, a powerful water pump, an energy converting device and a power output device, wherein the floating and sinking power device and the powerful water pump are arranged on the foundation in parallel, the top of the floating and sinking power device and the top of the powerful water pump are communicated through a floating and sinking water tank, and the energy converting device is arranged on the floating and sinking water tank; the energy converting device is connected with the power output device; the power converting device is further provided with a power output wheel matched with a bidirectional driving wheel set in a transmission mode; the power output wheel is connected to a power converting winch through a power transmission rope; limiting devices of a floating and sinking power device are respectively arranged at the upper part and the lower part of a floating and sinking tower pipe. A high-capacity efficient powerful pump is combined with a vertical floating and sinking energy conversion system, and the conversion of floating energy under low electrical energy consumption and bidirectional energy of gravitational potential energy and the output of mechanical energy are realized; the floating and sinking bidirectional acting type power output device is simple in structure, simple and convenient to operate, stable and reliable to work, low in energy consumption and high in power output efficiency, and is energy source equipment with huge development potential.

The invention discloses a low-carbon power machine which is formed by combining a box body or N box bodies. A motor, a generator, a centralized controller and a battery pack are installed on the box body; the motor is in power connection with the input shaft end of a boosting transfer mechanism device; the generator is in power connection with the output shaft end of an output rotating speed fine tuning device; the battery pack is electrically connected with the input end of a centralized controller device; the generator is electrically connected with the input end of the centralized controller device; the output end of the centralized controller device is electrically connected with the motor; the output end of the centralized controller device is electrically connected with a battery pack charger; the centralized controller device is provided with an inverter, a frequency converter, a transformer, a charger, a component and a circuit board; and the boosting transfer mechanism device is provided with two groups of crank shafts which are symmetrical right and left and are overlapped in the upper layer and the lower layer, connecting rods, levers and clutches which are organically combined. The invention has the advantages of high power output efficiency, low carbon, energy saving, zero emission and beneficial small, medium, low-power and high-power development and production.

The invention discloses an automatic adjustment device in a novel engine energy-storage flywheel. The automatic adjustment device comprises a fixed ring, wherein a power rod is fixedly connected to the interior of the fixed ring; a clamping ring is fixedly connected to the outer wall of the fixed ring in a surrounding form; a weight-bearing ring is arranged on the outer wall of the clamping ring in a surrounding form; the inner wall of the weight-bearing ring is mutually and fixedly connected to the outer wall of the clamping ring through connecting rods; through grooves are formed in the connecting rods in a penetrating manner; and counter weights are arranged in the through grooves. According to the automatic adjustment device disclosed by the invention, the counter weights are away from the weight-bearing ring and are moved toward the position of the clamping ring; magnet blocks in the counter weights mutually attract the clamping ring, and the clamping ring is fixed, so that the whole gravity of the device can be distributed more evenly; and the power rod has lower inertia at beginning of rotation, and the device has the advantages that convenience is provided for the flywheel to rotate, higher inertia is provided, the device has longer service life, abrasion is weakened, and the device is convenient to repair.