28results about How to "Power optimization" patented technology

The invention provides an energy-saving navigation method and system for a combined fleet under intelligent control, and relates to the technical field of data processing, and the method comprises the steps: collecting environment data and ship state data of fleet navigation in real time, carrying out the preprocessing, removing redundant data, obtaining a navigation data set, and obtaining a navigation data set according to the navigation data set; calculating a channel influence value, a sea condition influence value and a wake flow influence value, determining a resistance influence value of each ship according to the values, calculating the required power of each ship, obtaining a required power data set, calculating the compensation power of each ship, analyzing the limitation of the channel on the compensation power of the ships, balancing the distribution of the compensation power among the ships, and obtaining an energy-saving scheme. And the compensation power of each ship is adjusted in real time, the navigation efficiency of the fleet is monitored, execution data are obtained, whether the navigation efficiency reaches preset efficiency or not is analyzed, the resistance influence value of each ship is updated, and a power distribution scheme is adjusted. The propulsive power of the fleet can be intelligently controlled, and energy consumption is saved.

The invention provides a method for synchronously extracting tea seed oil and tea saponin from tea seeds, and belongs to the technical field of active substance extraction. According to the method, the extraction rate and the purity are remarkably improved by finely regulating and controlling the extraction conditions. The specific composite oil extraction auxiliary agent and the ultrasonic-assisted extraction technology are adopted, and the power, time and solvent ratio are optimized, so that the extraction efficiency and the product quality of the tea seed oil and the tea saponin are superior to those of the tea seed oil and the tea saponin prepared by a traditional method. Experimental data prove that the extraction rate of the tea seed oil reaches 27.22%, and the purity of the tea seed oil reaches 99.66%; the extraction rate of the tea saponin is 21.85%, and the purity of the tea saponin reaches 96.50%. By increasing the utilization rate of the raw materials and reducing the production cost, the market competitiveness of the product is improved, the high-quality tea seed oil and tea saponin meet the requirements of the market for natural products, and the tea seed oil and tea saponin have wide application prospects.

The invention discloses a new energy automobile charging management system, and aims to improve the charging efficiency, prolong the service life of a battery and improve the user experience. The system comprises a battery monitoring module, a charging mode management module, an intelligent scheduling module, a remote control module, a safety protection module, a big data analysis module and a billing management module. The battery monitoring module collects data such as battery voltage, current and temperature in real time; the charging mode management module dynamically selects a fast, standard or slow charging mode according to the battery state and the user demand; the intelligent scheduling module optimizes a multi-vehicle charging sequence to realize reasonable resource allocation; the safety protection module provides overvoltage, overcurrent and temperature protection to ensure charging safety; the remote control module enables a user to monitor and adjust the charging state in real time. According to the invention, through intelligent charging management, resource configuration optimization, charging efficiency improvement, safety risk reduction in the charging process and battery life prolonging, convenient charging experience is provided for users.

The invention relates to the technical field of power systems, and discloses a half-wavelength controllable tuning method under the background of a dual-carbon and novel power system. Comprising the following steps: system evaluation and demand analysis: collecting power grid information and fusing dual carbon and novel power system demands to determine a tuning target and key parameters; designing a half-wavelength tuning strategy, determining tuning parameters by using a particle swarm optimization algorithm, formulating the strategy, and performing simulation optimization; selecting and configuring half-wavelength controllable equipment, evaluating performance indexes, selecting equipment, and reasonably configuring, installing and debugging; system integration and communication network construction: integrating equipment and constructing a reliable communication network to ensure information transmission; tuning implementation and monitoring are carried out, a control system is developed to send instructions, data are collected and analyzed to evaluate performance, and optimization is fed back according to results. According to the invention, the stability and adaptability of the power grid are enhanced, the intelligent development is promoted, the resource configuration and structure are optimized, the safety and sustainable development are guaranteed, and the challenges of dual-carbon and novel power systems can be effectively handled.

The invention discloses a high-power electromagnetic detection transmitter direct-current power supply topology and a model prediction-based control method thereof, which are characterized in that the direct-current power supply topology adopts a mode of combining four converter modules IPOS (input parallel connection and output series connection), and the modules adopt a Buck-LLC two-stage converter cascade structure. Each module is independently controlled through a model prediction control method, a discrete mathematical model of the Buck-LLC two-stage converter is constructed, a control time domain M and a prediction time domain P are introduced, a prediction output equation and a value function are established, the optimal duty ratio of a driving signal of an equivalent circuit switching tube of the Buck-LLC two-stage converter is obtained according to the value function, and the optimal duty ratio of the driving signal of the equivalent circuit switching tube of the Buck-LLC two-stage converter is calculated. The rear-stage LLC circuit works at a resonant frequency point in an open-loop mode. According to the invention, soft switching, low-voltage input and high-voltage high-power output are realized, and quick response is made to load change, so that the efficiency, the stability and the response speed of the system are improved.

The present invention provides a surface acoustic wave resonator and a manufacturing method thereof, and a surface acoustic wave filter, which have high quality factor Q, high electromechanical coupling coefficient, good TCF characteristics and power resistance. The surface acoustic wave resonator of the present invention comprises: a composite piezoelectric substrate, the composite piezoelectric substrate having: an LGS base layer, the LGS base layer is formed of single crystal LGS, and a GaN piezoelectric layer formed on the LGS base layer, the thickness of the GaN piezoelectric layer does not exceed 20 times the wavelength of the acoustic wave propagating in the surface acoustic wave resonator; and interdigital electrodes formed on the GaN piezoelectric layer.

The utility model discloses an LLC magnetic integrated transformer, and aims to improve the integration level, the performance and the reliability. The transformer comprises a winding support, an upper magnetic core and a lower magnetic core which are symmetrically arranged, and a placing magnetic core fixed in a through hole of the winding support. The through hole is divided into a first containing groove and a second containing groove, the magnetic core is placed in the first containing groove, and the side edge protruding columns of the upper magnetic core and the lower magnetic core are arranged in the second containing groove. And a first air gap and a second air gap are respectively arranged between the magnetic core and the side edge convex columns and between the side edge convex columns and are used for adjusting magnetic resistance and optimizing performance.

The present application relates to a training method, device and computer equipment for a power grid section control model. The method includes: obtaining section control model training sample data corresponding to the target power grid, the power grid section control model to be trained and the power grid section optimization network; inputting the section control model training sample data into the power grid section control model to be trained to obtain the initial power grid section control information corresponding to the target power grid; inputting the initial power grid section control information into the power grid section optimization network to obtain the optimized power grid section control information; using the optimized power grid section control information to train the power grid section control model to be trained, until the disturbance of the initial power grid section control information is less than the disturbance threshold, and the trained power grid section control model is obtained. The use of this method can achieve more intelligent and flexible power grid management, thereby improving the response speed and adaptability of the power system, and further improving the stability of the power system.

The invention provides a three-phase electromagnetic coupling mechanism and a wireless power transmission system, and relates to the technical field of wireless power transmission. The three-phase electromagnetic coupling mechanism comprises a magnetic core layer, an A-phase coil, a B-phase coil and a C-phase coil, wherein the A-phase coil, the B-phase coil and the C-phase coil are arranged on the magnetic core layer in a stacked mode and form a three-layer stacked structure. The A-phase coil, the B-phase coil and the C-phase coil respectively comprise two coil sections which are electrically connected, each coil section covers a 180-degree corresponding area in the circumferential direction of the magnetic core layer, and orthographic projections of the two coil sections of each phase coil on the magnetic core layer are in central symmetry; and each layer of the three-layer laminated structure is provided with coil parts of coil sections of at least two different-phase coils. Multi-layer participation and symmetrical coverage of the three-phase coils are realized in the three-layer laminated structure, and each layer comprises different-phase coil sections, so that the problems of low space utilization rate and non-uniform magnetic field of a planar structure are effectively solved, and the magnetic coupling stability and the power transmission performance are improved.

A portable storage device and a method of operating the same are provided. The portable storage device includes a nonvolatile memory device for storing data, a storage controller, and a bridge chip set. The bridge chip set is connected to a first connector of a host through a cable assembly, detects a resistance of the cable assembly, provides USB type information of the first connector to the storage controller based on the detected resistance, and provides USB version information associated with an established USB connection to the storage controller after the USB connection is established with the host. The storage controller selects one of a plurality of initialization modes based on the USB type information and the USB version information, selects a clock signal having a frequency that is less than or equal to an available maximum power level, and performs an initialization operation based on the selected clock signal within an internal reference time interval.

The invention discloses a method for liquid phase exfoliation of two-dimensional porphyrin covalent organic framework nanosheets by protonation strategy, wherein the two-dimensional porphyrin covalent organic framework of bulk material is placed in a methanesulfonic acid aqueous solution for water bath ultrasonic liquid phase exfoliation, and then the dispersion liquid is centrifuged and washed and dried to obtain the two-dimensional porphyrin covalent organic framework nanosheets, wherein the two-dimensional porphyrin covalent organic framework of bulk material is H 2 P‑Bph‑COF, TAPP‑H, TAPP‑Br, TAPP‑OMe or TAPP‑OH. The present invention has a simple operation process and can prepare a few-layer two-dimensional porphyrin covalent organic framework nanosheets at low cost and on a large scale. The yield of the two-dimensional porphyrin covalent organic framework nanosheets exfoliated by liquid phase under optimal conditions is as high as 63.1%, and the proportion of nanosheets with a thickness of less than 2 nm is as high as 97.1%.

The utility model discloses a full -automatic low energy consumption small size aluminum tank formula ice maker, detachable installation is removed behind the cover formula on the side of control box, the one side fixedly connected with aluminum ice making tank of control box away from behind the cover, the rotation of being provided with push out lever in aluminum ice making tank, the one end of push out lever is connected with gear motor through deceleration subassembly and stretches into control box, the lateral surface fixed connection of aluminum ice making tank has peeler, the bottom of aluminum ice making tank is paved with graphene heating piece, and graphene heating piece is pressed in the bottom of aluminum ice making tank through the heating piece protection platen. Through setting up graphene heating piece in the bottom of aluminum ice making tank, realize the even heating of aluminum ice making tank bottom, then make ice block and aluminum ice making tank inner groove surface contact surface melt, thereby push out ice making tank only needs smaller force, can optimize the volume and power of drive motor, reduce the power consumption when using ice maker, reduce the use cost of ice maker.

The invention provides an energy storage negative electrode material, a negative electrode plate, a preparation method of the negative electrode plate, a battery cell and a battery, and relates to the technical field of electrochemistry. According to the negative electrode material disclosed by the invention, the artificial graphite (accounting for more than 50%) and the carbon microsphere graphite are preferably matched, and the particle size and the dosage are preferably selected, so that the graphite can be better distributed in gaps of the carbon microsphere graphite or the graphite can better wrap the carbon microsphere graphite, and the high capacity of the graphite and the high power of the mesophase carbon microsphere graphite are effectively matched; the negative electrode material with high compactness, high capacity, excellent power performance, 1C cycle performance and high-temperature performance is prepared, and the energy storage battery core requirement of the market for high energy density is met.

The invention relates to an improved droop control method and system based on adaptive virtual impedance, and the method specifically comprises the steps: building a parallel operation model of multiple inverters in a micro-grid system in which the inverters operate in parallel and are connected to an AC bus to supply power to a load, and building an inverter droop controller; collecting reactive power output by each inverter, and solving a self-adaptive virtual impedance value for adjusting line equivalent impedance through a radial basis function neural network according to a difference value between the reactive power output by each inverter and the reactive power output by an adjacent inverter communicating with the inverter; inputting a self-adaptive virtual impedance value into an inverter droop controller, calculating a voltage drop on the virtual impedance, and adding the voltage drop into an original output voltage reference value to obtain an output voltage reference value considering the virtual impedance; and in each sampling period, the virtual impedance value is updated according to the reactive power output difference value of each inverter, and a switching tube driving signal is generated according to the output voltage reference value considering the virtual impedance.

The application discloses a phosphorus-carbon metal composite negative electrode material, a preparation method and application thereof, and belongs to the technical field of material preparation. The preparation method of the phosphorus-carbon metal composite negative electrode material comprises the following steps: activating and pore-forming of a mixture of a carbon source compound, an activating agent and a molybdenum compound in an activating gas to obtain molybdenum-doped porous carbon; performing gas phase deposition of the molybdenum-doped porous carbon in red phosphorus gas and selenium gas to obtain phosphorus-selenium-molybdenum porous carbon; and performing gas phase deposition of the phosphorus-selenium-molybdenum porous carbon in sulfur vapor and carbon source vapor in sequence to obtain the phosphorus-carbon metal composite negative electrode material. The phosphorus-carbon metal composite negative electrode material utilizes molybdenum selenide and phosphorus to improve the specific capacity of the material, utilizes a porous structure to reduce the expansion of the molybdenum selenide, and utilizes sulfur-doped amorphous carbon deposited on the shell to improve the electronic conductivity of the material, and the application of the material to a sodium ion battery has the advantages of high specific capacity, good rate performance, low expansion and the like, and improved cycle performance.

The application discloses a throttle energy release type compressed air energy storage system turbine-heat storage integrated control method, relates to the technical field of thermal automatic control, and comprises the following steps: for a non-replenishment combustion type compressed air energy storage system, determining a turbine inlet temperature dynamic setting rule according to a steady-state thermal balance, and delimiting a system with a turbine inlet temperature and power generation power as controlled variables and a heat storage tank medium flow and a turbine inlet valve opening degree as control variables; then, state space models are constructed for different typical working conditions in combination with variable coupling relations; a prediction model is obtained through optimization and integration, and a state estimator is built to accurately estimate the real-time running state of the system; based on the estimation result, a performance index optimization function of a prediction controller containing multiple constraints is constructed, optimal control variables are output after online optimal solution, and turbine-heat storage integrated control is realized. The application significantly improves the energy utilization efficiency and operation economy of the compressed air energy storage system under different power demand operations.

The invention discloses an LED driving switch power supply over-current protection circuit which comprises a main side circuit and a secondary side circuit, the main side circuit comprises a first oscillation circuit and a second oscillation circuit, the first oscillation circuit comprises a first transistor, a first resistor, a first capacitor and a first main side coil, and the second oscillation circuit comprises a second transistor and a second capacitor. The first oscillation circuit comprises a first transistor, a first resistor and a first capacitor which are connected in series in a first main side coil closed circuit, the second oscillation circuit comprises a second transistor, a second resistor, a second capacitor and a second main side coil, and the second transistor, the second resistor and the second capacitor are connected in series in a second main side coil closed circuit; compared with the prior art, the LED driving switch power supply has the advantages that by adding the overcurrent protection design in the LED driving switch power supply, the LED driving switch power supply has good apparent power and stability, the number of loads can be increased according to actual requirements, a good heat dissipation effect is achieved, and cost is low.

The application discloses a kind of sonoluminescence free radical generation system, control method and pollutant processing method.The system includes electric control system, signal generator, spectrum analyzer, oscilloscope, power amplification module, ultrasonic transducer and optical fiber probe;Electric control system is centrally controlled to signal generator and spectrum analyzer by bus, signal generator drives ultrasonic transducer to produce cavitation bubble in medium water phase by power amplification module, and optical fiber probe gathers cavitation collapse light signal and sends to spectrum analyzer.The application utilizes sound wave to penetrate complex medium, generates hydroxyl radical in situ by sonoluminescence, breaks through the bottleneck that traditional light-driven technology is completely ineffective in optical poor medium, and can be used for soil groundwater remediation, high turbidity wastewater treatment and industrial cleaning.

The present invention relates to a V8 engine (10) for a motor vehicle having eight cylinders (1-8) arranged in two cylinder banks (16, 18), each containing four cylinders (1-4, 5-8), such that the first cylinder bank (16, 18) has a first cylinder, a second cylinder, a third cylinder, and a fourth cylinder of the cylinders (1-8). The second cylinder bank (16, 18) has a fifth cylinder, a sixth cylinder, a seventh cylinder, and an eighth cylinder of the cylinders (1-8). The cylinder banks (16, 18) are arranged side by side along a straight line (22) perpendicular to the observation direction (20) extending from the front side (VS) of the V8 engine (10) toward the output side (AS) of the V8 engine (10) which is arranged opposite to the front side (VS) along the longitudinal direction (24) of the V8 engine (10).

The invention belongs to the technical field of satellite kinetic energy on-orbit confrontation testing, and particularly relates to an on-orbit confrontation device based on kinetic energy. The invention provides an on-orbit confrontation device based on kinetic energy, which comprises a driving mechanism, a first synchronous wheel is rotatably arranged in a motor seat, and a driving gear is connected with an output shaft of a motor; a main shaft is arranged in the cartridge mechanism testing shell, a second synchronous wheel is arranged on the main shaft, and a synchronous belt is connected between the second synchronous wheel and the first synchronous wheel; the test shell is provided with an emission port; the invention discloses a rotational acceleration kinetic energy on-orbit confrontation load device. The invention provides an on-orbit confrontation device based on kinetic energy, and according to the fact that the maximum constraint of the kinetic energy on-orbit confrontation load function limited by space combat is input power, power distribution needs to be optimized possibly so as to maximize the efficiency of the kinetic energy on-orbit confrontation load device. According to the scheme, speed superposition is achieved while certain power input is achieved by means of centrifugal force.

The invention discloses an improved droop control method and system based on an energy storage converter and a medium, and relates to the technical field of power electronic micro-grid control. The system comprises an energy storage device port, a power conversion module, an LCL output filter, a power grid port, at least one load port and a system control module, the LCL output filter is connected with a power grid port through a common coupling point; the energy storage converter converts alternating current of the power grid port into direct current and transmits electric energy to the energy storage battery port and the load port; the system control module detects the difference value between the module output power and the reference power through the improved droop control module. The method has good active and reactive power tracking performance, and can provide inertia and damping links for the system, thereby improving the stability of the system. Meanwhile, the control method can realize smooth switching of the energy storage converter between an off-grid operation mode and a grid-connected operation mode.

The application relates to a front vehicle lamp LED light strip structure, and relates to the field of vehicle lamps. The structure comprises a lamp cover shell, a lamp body and a light-transmitting lamp cover. The front end surface of the lamp cover shell is vertically fixed with an embedded frame box, a mounting cylinder is horizontally fixed on the rear end surface of the lamp cover shell, the inside of the lamp cover shell is horizontally provided with the lamp body, the lamp body comprises a lamp rod and a daytime lamp, the lamp rod is inserted and mounted in the inside mounting cylinder of the lamp cover shell, the front end surface of the lamp rod is horizontally fixed with a main lamp, the rear end surface of the lamp rod is electrically connected with a connecting terminal, a screw box is fixed through the front end surface of the lamp rod, the daytime lamp comprises a screw ring and an LED light strip assembly, the screw ring is screw-assembled in the screw box, the front end surface of the screw ring is embedded and fixed with the LED light strip assembly, the light-transmitting lamp cover is arranged on the front side of the lamp cover shell and embedded and mounted in the embedded frame box. The modular design of screw-assembled screw rings and elastic strip positioning realizes precise installation of LED daytime running lamps and completely fills the short board of daytime driving safety.

The invention discloses a coordination control method for a multi-machine parallel system of an energy storage inverter of a water-based sodium-ion battery. The method comprises the following steps: estimating the state of charge (SOC) of an energy storage module; calculating the average value of the SOC; calculating a difference value between the current state of charge (SOC) of each energy storage module and the obtained SOC average value, and calculating a balance coefficient of each energy storage module in combination with a deviation adjustment coefficient; calculating the given active power of each energy storage module, and carrying out the balance adjustment of the output of the corresponding energy storage module through the given active power. According to the method, the problems that a unit with high SOC continuously discharges at high power and a unit with low SOC prematurely quits operation due to traditional VSG control or droop control are solved, simulation display shows that after SOC equalization is added, the SOC of each energy storage unit gradually approaches, the initial module with high SOC descends faster, the module with low SOC descends slower, equalization is finally realized, and compared with traditional control, the method has the advantages that the control efficiency is improved, and the cost is reduced. And the service life and the stability of the whole system can be improved.

The embodiment of the invention discloses a positive pole piece and a preparation method thereof and a battery, the positive pole piece comprises a positive active material, a carbon nanotube conductive agent and a binding material, the oil absorption value D of the carbon nanotube conductive agent, the specific surface area S of the carbon nanotube conductive agent and the mass percentage w of the carbon nanotube conductive agent in the positive pole piece meet a relational expression R, the three key parameters, namely the oil absorption value, the specific surface area and the content of the carbon nanotube conductive agent, are synergistically regulated and controlled, so that an efficient three-dimensional conductive network is favorably constructed, and the pole piece can have excellent electron conduction and ion conduction at the same time, and has excellent power performance in a low-temperature environment.

This invention relates to the field of conductive materials, and more specifically, to an MXene-Ti3C2T x The preparation method, composite material, and application of the conductive agent include the following steps: Ti3AlC2 MAX phase ceramic powder is added to an etching solution and reacted at 0–60°C for 5–48 hours. The mixture is washed with water until neutral, centrifuged, and a slurry is obtained. A polar organic solvent is added to the slurry, and the mixture is ultrasonically treated to obtain a suspension. The suspension is freeze-dried to obtain the conductive agent. This conductive agent utilizes metallic conductive two-dimensional MXene to directly construct a conductive framework, combining the functions of conductive support and interface regulation. The MXene sheets not only provide electron transport but also improve the interfacial compatibility between the silicon anode and the solid electrolyte through their flexibility and surface functional groups, suppressing interfacial cracking and side reactions.

The invention discloses automatic deburring equipment, relates to the technical field of new energy automobile spare part machining, and aims to solve the problems that in the prior art, when a scroll plate is deburred, single-station milling equipment is mostly adopted for deburring, the deburring and milling efficiency is low, the failure rate is high, and the production efficiency is affected. A clamping and fixing system, a deburring and milling system, a PLC control system and a cleaning system are arranged in the shell, the clamping and fixing system comprises a static disc, four brackets are symmetrically arranged on the static disc, and the distances between the four brackets are the same; the deburring and milling system comprises an integrated cylinder, a driving system, a torque amplification system, a transposition mechanism and a transmission mechanism are arranged in the integrated cylinder, four sets of double-shaft linkage milling mechanisms are arranged outside the integrated cylinder, milling and deburring can be carried out on the two scroll plates at the same time, milling work cannot be interrupted due to the problem of a milling cutter, the error-tolerant rate is higher, and the service life of the scroll plates is prolonged. Therefore, the production efficiency is improved.

This invention belongs to the field of AC / DC hybrid distribution network operation and control technology. A method for autonomous and mutual-assistance operation of AC / DC hybrid distribution networks based on flexible multi-state switches includes the following steps: Step S1: Calculate the comprehensive stability index of each node; Step S2: Monitor the comprehensive stability index in real time; Step S3: In the autonomous mode, the SOP within each zone adopts an AC / DC power decoupling control strategy based on dynamic virtual impedance; Step S4: When the power deficit of a zone exceeds a preset proportion of the zone's rated load and the duration exceeds a preset time threshold, the mutual-assistance mode is activated; Step S5: When a system fault occurs, a fault recovery strategy based on model predictive control is adopted; Step S6: Monitor the communication status between the global coordination unit and the control units of each zone in real time. This achieves safe, stable, efficient, and economical system operation, reduces communication dependence, and improves power supply reliability.

The application discloses a vehicle-network cooperative charging pile scheduling method and system based on retired battery energy storage, and relates to the technical field of energy storage scheduling. The method comprises the following steps: S1, real-time acquisition of vehicle-network energy storage scheduling data for data preprocessing; S2, real-time judgment of energy storage unit scheduling priority, construction of energy storage charging and discharging strategy dataset; S3, construction of a price prediction model, reception of the energy storage charging and discharging strategy dataset, determination of the output of the energy storage charging and discharging power, and execution of the charging and discharging strategy; S4, evaluation of the charging and discharging power distribution of a single battery module during the execution of the charging and discharging strategy, differential charging and discharging scheduling of each battery module, and optimization of the charging and discharging strategy and the charging and discharging power distribution strategy. The method solves the problems of the existing charging pile system, such as lack of flexible energy storage and intelligent scheduling, difficulty in coping with price and load fluctuations, low utilization rate of retired power batteries, resource waste, battery safety, and insufficient power grid interaction capability.