1135 results about "Energy conversion efficiency" patented technology

The invention discloses a fuel cell hydrogen circulation cooling integrated system, and relates to the technical field of fuel cells, the fuel cell hydrogen circulation cooling integrated system comprises a hydrogen circulation cooling management center, the hydrogen circulation cooling management center is in communication connection with the following modules: a multi-source state sensing module, which is used for collecting multi-dimensional state data of a hydrogen circulation-cooling system in real time, extracting state characteristics, and sending the state characteristics to a control module; and forming a state feature sequence table. The multi-dimensional state data of the hydrogen circulation-cooling system is collected, the dynamic cooperative control strategy of the reinforcement learning decision module is combined, the precision and stability of temperature control are remarkably improved, the Markov decision process model is used for predicting the instantaneous heat production change caused by load sudden change, and the stability of the system is improved. And through combined adjustment of hydrogen circulation and a cooling system, temperature fluctuation is rapidly restrained, compared with traditional PID control, the temperature overshoot is reduced under the dynamic working condition, it is ensured that the galvanic pile works within the optimal temperature range all the time, the service life of the galvanic pile is prolonged, and the energy conversion efficiency is improved.

The invention relates to the technical field of neural engineering and brain-computer interfaces, in particular to a closed-loop multi-modal nerve stimulation system and method based on time interference, and the system comprises a multi-modal stimulation module which is used for integrating electrical stimulation, magnetic stimulation and optical genetic stimulation, and generating a time interference field domain; the neural state sensing module is used for collecting real-time electroencephalogram signals, blood oxygen concentration and neural metabolite level data; the neural control center is used for fusing neural state data and stimulation parameters, and dynamically adjusting time interference frequency and stimulation intensity through an adaptive algorithm; the time sequence cooperation engine predicts a neural response time phase based on a deep learning model, and optimizes a stimulation time sequence and a mode switching strategy; and the visual interaction platform is used for rendering the nerve activation thermodynamic diagram and the stimulation parameter adjustment curve in real time. Therefore, the problems of adjustment strategy solidification, low adjustment precision, insufficient energy conversion efficiency and the like in the prior art are solved.

The invention provides a compound uniform-load and shunt load shedding type planetary gear gearbox with a face gear. The compound uniform-load and shunt load shedding type planetary gear gearbox comprises an input planet carrier integrated assembly, a first-stage compound uniform-load planet row, an inter-stage flexible connection structure, a second-stage planet row and a face gear steering output assembly. The input planet carrier integrated assembly is connected with the first-stage compound uniform-load planet row, the inter-stage flexible connection structure is arranged between the first-stage compound uniform-load planet row and the second-stage planet row, and a first-stage floating sun gear in the first-stage compound uniform-load planet row and the main shaft planet carrier structure are coaxially arranged. The first-stage floating sun gear is installed in a floatable mode through a first-stage sun gear supporting shaft, self-adjustment can be achieved in the radial direction and the axial direction, and the first-stage floating sun gear is meshed with the first planet gear and the second planet gear in a double-side mode. The energy conversion efficiency can be improved, uneven load distribution is improved, and the system integration degree is improved.

The invention relates to the technical field of hybrid energy, and particularly provides a self-adaptive power distribution multi-source parallel mobile power supply system which comprises a multi-source input interface, a multi-channel input adjusting module, an energy storage module, an energy storage bidirectional adjusting module, a self-adaptive power distribution module and a power output interface. The method is characterized in that an MPPT algorithm is independently executed for each heterogeneous power supply through a multi-channel input adjusting module, and energy extraction is maximized; based on load detection and a multi-stage feedback mechanism, dynamic self-adaptive power distribution is realized; a multi-channel input end is adjusted into a unified standard bus voltage, and an output end dynamically adjusts the voltage according to a load, so that the energy conversion efficiency is improved while the use convenience is ensured; and the standard lithium battery units spliced without tools and the modular circuit design are adopted, so that the flexible combination and disassembly of the system are realized. According to the invention, the complexity of the hybrid energy system is greatly reduced, the system stability is improved, and efficient and lightweight hybrid energy mobile power supply is realized.

The invention discloses an isolation type split-phase inverter circuit and a control method thereof. The isolation type split-phase inverter circuit comprises an isolation DC / DC module circuit and a power frequency rectification module circuit. The isolation DC / DC module circuit comprises an input-side full bridge, a three-end transformer and two output-side circuits, an input-side winding of the three-end transformer is connected with a midpoint of a bridge arm of the input-side full bridge, and the input-side full bridge is connected with a filter capacitor C1 in parallel; two output side windings of the three-end transformer are respectively connected with corresponding output circuits through a resonance network circuit, the two output circuits are connected to a power frequency rectification module circuit through filter capacitors C4 and C5, and the negative electrode of the first output circuit and the positive electrode of the second output circuit are connected to form an interface N; the power frequency rectification module circuit comprises a rectification full-bridge circuit, and an interface L1 and an interface L2 are obtained after rectification. Through cooperative control of direct transmission of integrated topology and voltage signals, a complex parameter matching algorithm is not needed, breakthrough in structure simplification, energy conversion efficiency, control convenience, cost control and safety is achieved, and the method is suitable for various power conversion scenes.

The invention relates to the technical field of resource scheduling, and provides an industrial and commercial energy storage power resource scheduling method and system, and the method comprises the steps: obtaining the operation parameters of a power conversion system and the operation parameters of an energy storage battery; according to the operation parameters, internal assembly stress and energy conversion efficiency deviation are evaluated, and the accelerated attenuation risk is evaluated; internal component stress, energy conversion efficiency deviation and accelerated attenuation risk are converted into virtual aging cost; adjusting the available power upper limit according to the internal component stress, the energy conversion efficiency deviation and the accelerated attenuation risk; subtracting the virtual aging cost from the economic benefit in the preset date to obtain a net benefit, and generating a power scheduling instruction under the constraint of the available power upper limit by taking the net benefit maximization as a target; and after the power scheduling instruction is executed, feeding back the actual execution condition corresponding to the power scheduling instruction, and correcting the calculation parameters. The method has the effect of improving the accuracy and economical efficiency of the industrial and commercial energy storage system.

The invention relates to the technical field of feed efficiency optimization, in particular to a feed efficiency optimization system based on a growth model, and the system comprises a data collection unit which is used for collecting and associating individual identities, individual weight data, time-phased feed intake data, environment data and environment forecast data; the model calibration unit is used for calibrating individual energy conversion efficiency parameters, generating an environment dynamic correction factor by using the environment data and generating a group classification label based on historical individual performance data; and the decision and execution unit operates a double-cycle cooperation mechanism based on pre-judgment and execution. By dynamically calibrating the individual energy conversion efficiency and combining with the environment forecast, real-time calculation and differentiated feeding regulation and control of the individual energy demand can be realized.

The invention discloses a self-adaptive charging and discharging coordination control method and system for an energy storage battery, and relates to the technical field of charging and discharging control of the energy storage battery. The method comprises the following steps: correcting a maximum allowable current based on a real-time collected SOC and a preset battery low charge threshold, a battery high charge threshold, a reference coefficient, a first attenuation coefficient and a second attenuation coefficient to obtain an inner loop current amplitude limit; judging whether the current system reaches current saturation or voltage saturation, and marking a corresponding saturation mark; calculating a saturation difference value and a saturation direction angle based on the current value controlled and output by the inner ring and the current value actually output by the inner ring; according to the saturation mark, the saturation difference value and the inner loop current amplitude limit are used for correcting the preset outer layer reference power, the corrected reference power is obtained, the integration gain in the preset integration link is corrected, and the saturation state is relieved; stability and reliability of charging and discharging control of the energy storage system are guaranteed, power control precision is improved, service life of equipment is prolonged, and energy conversion efficiency is improved.

The invention discloses a wave power generation device for an island, and relates to the technical field of power generation for the island, the wave power generation device comprises a floating body and a fixed support, the floating body floats along with sea waves, an energy generation mechanism and an energy conversion mechanism are arranged on the inner side of the fixed support, the fixed support does not float along with the sea waves, and the energy generation mechanism is arranged on the top surface of the floating body; the fixed support controls the buoyancy difference value of the floating body based on the moving state of the energy generation mechanism, the energy conversion mechanism is connected with a generator through a transmission mechanism and drives the generator through the transmission mechanism, the generator is connected with a frequency-stabilized voltage-stabilized power supply through a wire, and the frequency-stabilized voltage-stabilized power supply outputs stabilized voltage electric energy. The wave power generation device has the advantages of being high in wave energy conversion efficiency, simple and compact in structure and reliable in operation.

The invention provides a tritium radiation volt isotope battery. The tritium radiation volt isotope battery comprises a shell and a stacking structure, the shell is provided with an accommodating cavity; the stacked structure is arranged in the containing cavity and comprises a positive pole piece, a semiconductor transduction layer and a negative pole piece which are arranged in a stacked mode, the semiconductor transduction layer is arranged to be an array formed by columnar nano particles, liquid tritides are distributed on the surfaces of the columnar nano particles, and the liquid tritides comprise all-tritiated N-ethyl carbazole and / or all-tritiated N-ethyl carbazole and / or all-tritiated N-ethyl carbazole and / or all-tritiated N-ethyl carbazole and / or all-tritiated N-ethyl carbazole and / or all-tritiated N-ethyl carbazole. And part of tritiated N-ethyl carbazole. The radiation volt isotope battery has improved energy conversion efficiency.

The invention discloses a drilling track real-time monitoring and intelligent deviation correction control method, device and equipment, and aims to construct a multi-sensor fusion drill attitude measurement technology to realize high-precision track deviation detection and error compensation; performing potential energy accumulation on the negative deviation component to generate a deviation energy pool by adopting a positive and negative deviation decomposition technology of a track deviation vector; establishing a chaos control band framework, analyzing and identifying a stable boundary and an unstable boundary through energy fluctuation characteristics, and extracting an optimal response interval to guide deviation correction control; determining an active deviation rectification vector, and controlling a hydraulic cylinder to generate deflection torque through a composite deviation rectification instruction; an oscillation feature extraction technology is introduced, a stability index is generated based on system oscillation parameters and position mapping of a chaos control band, a chaos edge control field is constructed, and precise regulation and control of complex nonlinear drilling dynamics are achieved; the energy conversion efficiency is obtained and the chaos edge control field is combined to generate a real-time deviation correction control quantity, so that a closed-loop intelligent deviation correction control loop is formed.

The invention relates to the technical field of process control, in particular to an in-cylinder direct injection methanol generator combustion system control method based on multi-objective optimization, which comprises the following steps: acquiring multi-source sensor data of a methanol generator, performing feature extraction and evaluation on the multi-source sensor data, and generating a control weight distribution matrix; performing weighted fusion by using the control weight distribution matrix to obtain a fusion control vector; the method comprises the following steps: constructing an in-cylinder process control model, adaptively adjusting model parameters in combination with physicochemical characteristics of methanol fuel and in-cylinder combustion characteristics, comprehensively evaluating energy conversion efficiency, emission level and operation stability by adopting a multi-objective optimization algorithm based on the process control model and in combination with real-time working condition data, and carrying out iterative search on a Pareto optimal solution set. Dynamically generating adaptive control parameters; and generating a control instruction according to the self-adaptive control parameters, and adjusting the operation parameters of the methanol generator in real time. Accurate control over the combustion system is achieved by dynamically adjusting the control parameters of the methanol generator.

The invention relates to the technical field of vehicle power systems, in particular to a solid hydrogen storage device containing a low-temperature cold-start hydrogen storage cylinder and a fuel cell collaborative power assembly, and the device comprises a heat flow modulation module, a balance driving module, a release coordination module, a power matching module and a power assembly control module. In the hydrogen storage process, through real-time linkage judgment of the interface temperature difference and the heat flux change, directional feedback of energy in different areas is achieved, the stable hydrogen release condition of the hydrogen storage material is maintained, differentiated distribution is conducted on heating power according to the heat flux density deviation, invalid energy consumption and local energy accumulation are avoided, and the energy storage efficiency is improved. Dynamic balance is constructed between the hydrogen release rate and the phase change medium energy absorption rate, the hydrogen supply process is corrected through filtering estimation, the release flow is more stable and controllable, finally, the hydrogen supply stability and the load requirement are combined in the power output link, dynamic matching of the galvanic pile power and the external working condition is achieved, and the energy efficiency is improved. And the response flexibility and the energy conversion efficiency of the power system are improved.

The invention belongs to the technical field related to medical robots, and discloses a rigid-flexible coupling pneumatic humanoid dexterous finger and a dexterous hand. The dexterous finger comprises a sectional corrugated pipe actuator, a rigid cover plate, a rigid bottom plate, a flexible finger pulp patch and a one-way stretchable fabric; a cooperative structure of rigid supporting, flexible driving and contact adaptation is formed through a preset assembly relation; by designing the wave number of the corrugated pipe at each joint of the pneumatic dexterous finger, the bending proportion of each joint is ensured to accord with the human hand movement rule; the one-way stretchable fabric can restrain ineffective upheaval at the joints, and the energy conversion efficiency is improved. The dexterous hand can integrate five anthropomorphic-size dexterous fingers, and the palm notch angle, the thumb turning direction angle and the flexible palm patch are all engraved with the physiological characteristics and structure of the hand of the human body. According to the pneumatic dexterous hand, personification of the pneumatic dexterous hand in appearance and movement modes is achieved, flexibility and bearing stability are both considered, and the pneumatic dexterous hand can meet the requirements of multiple scenes such as medical care and industrial assembly.

The invention relates to the technical field of intelligent control, and discloses an intelligent hammer crusher control method and system based on artificial intelligence. The method comprises the steps that material characteristics are analyzed through near-infrared scanning, and vibration and acoustic signals are collected to obtain crushing state data; analyzing the energy conversion efficiency and the particle size distribution condition according to the data, and evaluating the crushing efficiency and the product quality; calculating the ratio of the optimal hammerhead linear speed to the feeding rate based on the evaluation result; and the optimization parameters are converted into equipment control signals to realize self-adaptive adjustment. The technical problems that traditional vibrating screen fixed parameter control cannot adapt to multi-coal-type changes, the multi-target constraint problems that screening efficiency and energy consumption are difficult to balance in the parameter optimization process, and a precise matching mechanism is lacked for control parameters and material characteristics are solved.

The invention provides an energy management method, electronic equipment and a vehicle, the method is applied to the technical field of vehicle energy management, and the method comprises the following steps: when the working mode of the vehicle is a series mode, discrete processing is carried out on engine demand power to obtain M engine initial discrete powers; determining M discrete parameter sets according to the M initial discrete powers of the engine; according to the M discrete parameter sets, target working parameters of the engine are determined, so that the equivalent fuel consumption is minimum; and controlling the engine to operate according to the target working parameters. According to the method, optimization can be carried out by narrowing the discrete range, and the optimization workload can be reduced. Besides, by pre-calculating the basic required power meeting the current working condition, the optimal parameter can be highly matched with the current vehicle working condition, the accuracy of the optimization result is ensured, the fuel economy of the vehicle is improved, the fuel loss of the engine is reduced, and the energy distribution and energy conversion efficiency of the vehicle are optimized.

The invention discloses a high-temperature pipeline magnetostrictive guided wave sensor and a monitoring method, and relates to the field of ultrasonic nondestructive testing. According to the sensor, a wrinkled iron-cobalt alloy belt is used as a sensitive element, and the sensor is in dry coupling contact with a to-be-detected pipeline; the high-temperature-resistant static magnetic field coil is wound on the outer side of the aluminum pre-tightening ring in a solenoid mode, and a bias pulse excitation mode is adopted. Alternately winding the bottom end of the wrinkle structure of the wrinkle-type ferrocobalt alloy belt and the back surface of the belt material, controlling the wrinkle-type ferrocobalt alloy belt to excite a guided wave signal in a pulse section, and receiving the guided wave signal in a bias section; the dynamic magnetic field and the static magnetic field generated by the two groups of coils are perpendicular in direction, and torsional mode guided waves are generated in the high-temperature pipeline based on the reverse Weidmann effect. The sensor is easy to install and stable in performance, the whole structure is resistant to high temperature for a long time, and the engineering problem of high-temperature failure is solved. The method provided by the invention comprises the steps of optimizing pre-tightening force, pulse voltage and bias current parameters, so that the transduction efficiency is improved, and the capability of detecting new defects of the pipeline in high-temperature and variable-temperature states is enhanced.

The invention provides a polar region clean energy system staged capacity optimization method and device and a readable storage medium, and belongs to the field of new energy planning. The problems of energy storage capacity redundancy and low hydrogen energy conversion efficiency existing in a traditional capacity planning method are solved; comprising the following steps that a staged optimization model is constructed based on seasonal characteristics, the staged optimization model comprises a first-stage model and a second-stage model, the first-stage model considers day-to-day balance of one year, the second-stage model only considers intra-day balance, and total cost minimization is taken as a target; inputting related parameters, and calling the first-stage model to solve annual capacities of wind power, photovoltaic and hydrogen energy storage and a standby threshold value of a diesel generator; calling the second-stage model day by day to obtain power and capacity of electrochemical energy storage and hydrogen energy storage; performing global capacity decision and outputting final capacity configuration of each device; the method is applied to clean energy system capacity planning.

The invention discloses a frequency quasi-independent controllable double-frequency electrically small rectification circuit, and belongs to the field of radio frequency energy collection. The rectifying circuit comprises a double-frequency matching network, a blocking capacitor, two Schottky diodes, a filter capacitor and a resistive load. The dual-frequency matching network is composed of a capacitor, an inductor and a microstrip line and used for achieving impedance matching of two working frequency points and achieving quasi-independent regulation and control of the positions of the two frequency points by adjusting the value of the inductor and the length of the microstrip line. And the microstrip line is bent for five times so as to realize the miniaturization of the overall structure of the circuit. The blocking capacitor is used for blocking a direct current component and avoiding energy feedback; the two Schottky diodes are used for converting a radio frequency signal into direct current energy; the filter capacitor is used for improving the smoothness of output direct current energy and improving the energy conversion efficiency. The device is compact in structure, adjustable in frequency point position and suitable for a dual-band radio frequency energy collection scene.

This invention discloses a firecracker-style controlled nuclear fusion and fission synergistic power generation device and method. The power generation device includes a fission-fusion reaction system, a circulating cooling system, and other accessories. The fission-fusion reaction system includes a neutron gun, fuel spheres, a fuel sphere storage and delivery device, and a vacuum reactor. The circulating cooling system includes a circulating fan, a voltage regulator, a steam turbine, a steam generator, delivery pipelines, and a water pump. Other accessories include an energy storage and control system and a vacuum pump. This invention innovatively integrates the start-up mechanism, drawing on the firecracker-style multi-reactor relay concept, combining nuclear fission and nuclear fusion. It utilizes the high temperature and pressure generated by nuclear fission to start nuclear fusion, reducing start-up difficulty and cost. Simultaneously, it efficiently converts and utilizes energy, employing helium for heat transfer. Helium's high thermal conductivity, low density, high specific heat capacity, and chemical inertness allow it to effectively carry away the heat stored in the phase change microspheres, comprehensively collecting and converting nuclear reaction heat energy, thus improving energy conversion efficiency.

The invention discloses a floater array and lever fulcrum adjustable bidirectional wave energy collecting device, and belongs to the technical field of wave energy power generation. The device comprises a carrying platform, an energy capturing device, a lever conversion device and a wave energy conversion device. The energy capturing device is hinged to one end of the lever conversion device through a multi-direction rotating mechanism and comprises a floater array mounting disc and a plurality of gyro type floaters detachably mounted on different sites of the floater array mounting disc, and an adjustable array is formed. The lever fulcrum position of the lever conversion device is adjustably installed on the carrying platform, and the other end of the lever conversion device is in transmission connection with a pull rod of the wave energy conversion device. The wave energy conversion device is of a low-friction sliding sealing ring and guide ring structure. Different wave conditions are adaptively matched through an adjustable floater array and a lever fulcrum, and longitudinal and transverse wave energy is captured by utilizing a lever conversion device and an independent hydraulic cylinder driving mechanism; through a low-friction sealing structure and a guide ring, the mechanical loss is obviously reduced, and the energy conversion efficiency is improved; the device is especially suitable for a low-energy-density wave environment, and the energy capture and conversion efficiency is remarkably improved.

The invention provides a self-cooling electromagnetic direct-driven straight wing propeller, and relates to the technical field of ship propellers, the propeller comprises a shell, and an outer disc type motor, an inner disc type motor and a propelling mechanism which are arranged in the shell; the outer disc type motor comprises an outer rotor and an outer stator, the outer rotor is rotatably connected with the shell, and the outer stator is fixed to the shell. The inner disc type motor is coaxially arranged on the inner side of the outer disc type motor and comprises an inner rotor and an inner stator, the inner stator is fixed to the shell, and the inner rotor is rotatably connected with the outer rotor. The propelling mechanism comprises a disc, straight wing blades, a sun gear and a planetary gear, the disc is fixed to the outer rotor, the blades are evenly distributed in the circumferential direction, and a rotating shaft is rotatably installed on the disc. The sun gear is coaxially fixed with the inner rotor, the planetary gears are uniformly distributed, meshed with the sun gear and rotatably connected with the outer rotor, and each planetary gear is fixed with the corresponding blade rotating shaft. According to the propeller, the blades are driven to revolve and swing through the two motors respectively, a traditional complex structure is simplified, the size and weight are reduced, and the energy conversion efficiency is improved.

The invention relates to a rapid estimation method for energy consumption of an electric vehicle, and the method comprises the following steps: S1, carrying out random combination according to a driving mode and an energy recovery mode of the vehicle to obtain a plurality of driving preferences, and selecting a plurality of environment temperature values in a preset environment temperature change range, performing multiple groups of driving / braking energy efficiency test experiments on each driving preference of the vehicle under each environment temperature value to obtain test data of each group of driving / braking energy efficiency test experiments; s2, performing data processing on each group of test data to obtain energy conversion efficiency of various driving preferences under various environment temperature values; s3, interpolating the environment temperature value of each driving preference to obtain energy conversion efficiency under each interpolated environment temperature value of each driving preference, and establishing an energy conversion efficiency database; and S4, acquiring the driving state data of the to-be-detected vehicle, and processing the driving state data of the to-be-detected vehicle to estimate the energy consumption of the to-be-detected vehicle. The method can effectively estimate the vehicle energy consumption.

The invention discloses a distributed new energy monitoring method and system based on machine vision, and the method comprises the steps: obtaining real-time image data through an image collection device, combining an abnormality detection algorithm and a posture detection algorithm, positioning equipment abnormality, evaluating the energy conversion efficiency, and fusing a light and shadow distribution analysis result to judge a potential abnormal region. And for an abnormal region, extracting operation data from the edge calculation unit, integrating image analysis and operation parameters by adopting a multi-source data fusion algorithm, generating a global state evaluation index, and triggering an early warning and maintenance process based on the global state evaluation index. Through multi-dimensional data fusion and intelligent algorithm integration, the operation reliability and maintenance efficiency of renewable energy facilities are remarkably improved, and important technical support is provided for sustainable development of green energy.

The invention discloses a method for efficiently generating high-brightness gamma radiation, and belongs to the technical field of radiation. A relativistic electron beam is injected into the porous microstructure foam target material, and high-brightness gamma ray radiation is generated. According to the method, the used device is simple, only the single relativistic electron beam and the porous microstructure foam target material are needed to interact, compared with a traditional uniform-density solid material, the energy conversion efficiency in the interaction process of the electron beam and a substance can be remarkably improved, and the energy conversion efficiency can be remarkably improved through the effective constraint effect of a high-intensity magnetic field. And the problems of low energy conversion rate, low light source brightness, poor radiation directivity, complex device or difficulty in experiment implementation and the like of the existing high-energy gamma ray radiation source are solved.

The invention discloses a self-adaptive configuration method for an optimal working point of a concrete hidden crack ultrasonic thermal excitation system, and the method comprises the steps: collecting multi-physical field response data of the system under different parameter combinations through constructing a parameter space containing initial coupling pressure and working frequency; constructing an excitation efficiency evaluation index based on the active power response or thermal image temperature difference of the transducer, and locking an initial optimal working point by identifying extreme value features of an index response function; performing second-order sensitivity analysis on the optimal point neighborhood by using a Hessian matrix, and constructing a tolerance elliptic model to quantify a parameter control boundary; and meanwhile, frequency and pressure drift are monitored in real time based on a power-phase decoupling mechanism of voltage and current. According to the method, the optimal working parameters can be adaptively matched for loading devices with different rigidities, the engineering tolerance is scientifically set, and the energy conversion efficiency and the detection robustness of the ultrasonic thermal excitation system are improved.