12results about How to "Power optimization" patented technology

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 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 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 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 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.