52results about How to "Easy to increase capacity" patented technology

The invention provides a network voltage disturbance generating device, which comprises a three-phase bridge type PWM (Pulse Width Modulation) rectifier and a three-H-bridge three-phase four-wire-system PWM inverter, wherein the alternating current side of the rectifier is connected with an electric network through an L type filter; the direct current side of the rectifier is connected in series with the direct current side of the three-H-bridge three-phase four-wire-system PWM inverter; an LC filter is connected to the alternating current side of the three-H-bridge three-phase four-wire-system PWM inverter; the output end of the LC filter is connected with an isolation transformer; and the secondary side of the isolation transformer is connected with a load. The invention further provides a control method suitable for the device. Due to the adoption of the device provided by the invention, the simulation of a network voltage amplitude, frequency disturbance and an electric network harmonic phenomenon can be realized, bilateral flow of energy can be realized, and active energy transmitted by tested solar-powered grid-connected equipment is fed back to the electric network; and the control method is easy and convenient to implement, and a target reference value can be accurately tracked; and moreover, quick response and small steady-state errors are realized, so that electric network disturbance can be simulated accurately.

The invention discloses a control method for a combined refrigerating multi-split air conditioner system. The multi-split air conditioner system is characterized in that two or more outdoor combined refrigerating modules are arranged the outdoor side to form a cold source system of the multi-split air conditioner system, each outdoor combined refrigerating module is composed of a first refrigerant vapor compression and refrigeration circulating loop and a second refrigerant circulating loop, one or more direct evaporation type indoor air cooler modules are arranged at the indoor side, and a refrigerant storing and conveying unit is connected with the part between each outdoor combined refrigerating module and the corresponding indoor air cooler module to form a closed circulating system through a liquid collecting tube, a main liquid supply tube and a main air return tube. According to the control method for the combined refrigerating multi-split air conditioner system, the number of the indoor and outdoor modules is decided according to the designed thermal load of an air conditioner, and the control method precisely regulates the refrigerating capacity to meet the heat control needs of round-the-clock running data machine rooms and electronic equipment; the control method for the combined refrigerating multi-split air conditioner system is capable of making the maximum use of the natural cold source of the day and night, transition season and winter so as to realize the great energy conservation and emission reduction of the air conditioner system.

The invention relates to a preparation method of polylactic acid/polyadipic acid-polybutylece terephthalate blend, and belongs to the field of high molecular polymer blending modification. In the method, the injection of a supercritical carbon dioxide fluid can generate synergistic capacity increasing and toughening effects on the PLA/PBAT blend with a chain extender ADR or ADR and organic montmorillonite (OMMT) beside reducing the viscosity of a processed melt, so as to further refine a PBAT dispersion phase and enhance the adhesion of a PLA/PBAT interface layer. Finally, a set of PLA/PBAT modified blends with high toughness is obtained, and the maximum notched impact strength is 36.23 kJ/m2. Under the plasticization of the supercritical carbon dioxide fluid, the selective distribution ofOMMT nanoparticles in the PBAT and PLA interface layers and in-situ generated PLA-ADR-PBAT block macromolecules can stabilize the interface of PBAT dispersion phase; and the synergistic effect enables the dispersion phase to be better refined during the blending process, thereby improving the impact toughness of the blend.

The invention belongs to the technical field of lithium-ion batteries, and in particular relates to a preparation method for a negative electrode material of the lithium-ion battery. The preparation method comprises the steps of ball-milling fine powder of artificial graphite wastes, SiO particles and organic carbon sources, thus acquiring mixed powder; then mixing the mixed powder with nitrogen-containing compounds; and nitriding in the atmosphere of protective gases at high temperatures of 300-1200 DEG C, thus acquiring the negative electrode material of the lithium-ion battery. According to the preparation method provided by the invention, the artificial graphite wastes can be better utilized for recycling, oxygen-containing functional groups on the surfaces of the artificial graphite wastes can be removed by nitrogen treatment, and primary coulombic efficiency, cycling stability and reversible capacity of the artificial graphite wastes can be improved. In addition, due to the mixture of silicon monoxide and the artificial graphite, both advantages can be integrated and both disadvantages can be weakened, and then the negative electrode material of the lithium-ion battery with high coulombic efficiency, good cycling performance, high capacity, high power and relatively small expansion can be acquired for the first time via effective coverage.

The invention belongs to the technical field of the accumulator recycling, and provides a scrap lead accumulator recycling method. The method comprises the following steps: (1) dismantling and sorting the scrap lead accumulator; (2) treating liquid waste acid pickle; (3) treating waste plastic; (4) smelting lead matte; (5) purifying; (6) producing lead alloy; (7) removing dust; (8) water film dust removing: collecting the waste gas in the dust removing step (7) to guide into the water film dust removing system to perform the water film dust removing, wherein the gas after dust removing is discharged into the atmosphere. The scrap lead accumulator recycling method provided by the invention is low in energy consumption, high in yield, and free from causing secondary pollution on the environment.

The invention relates to the technical field of storage batteries, in particular to a novel battery management system for an electric vehicle, including an external power access module, a controllableswitch, a voltage acquisition module, a current acquisition module, a temperature management system, a plurality of sub-energy storage platforms and an MCU, wherein the plurality of sub-energy storage platforms are connected in series to each other to form an energy storage platform; the voltage acquisition module collects the voltage at two ends of the energy storage platform and is connected with the MCU; the current acquisition module collects the current flowing through the energy storage platform and is connected with the MCU; and the temperature management system regulates the temperature of the energy storage platform. The novel battery management system for an electric vehicle has the advantages that the sub-energy storage platforms are arranged to constitute an energy storage platform of the battery, so that the battery can be conveniently expanded or modified into a battery pack of other voltages, the charging voltage of the battery core is monitored and balanced by a balancing module and a sampling module, to prolong the service life of the battery core, and the safety management unit is used for cutting off the power supply in an emergency, thereby avoiding or reducingthe occurrence of secondary accidents.

The invention relates to a glue. The glue comprises the following components in parts by mass: 35-40 parts of deionized water, 0.3-0.5 part of a polymerization accelerant, 0.01-0.10 part of an anionic-non-ionic surfactant, 0.20-1.00 part of an anionic emulsifying agent, 20-30 parts of butyl acrylate, 10-20 parts of styrene, 5-20 parts of methyl methacrylate, 5-20 parts of acrylic acid, 5-20 parts of hydroxyethyl acrylate, 5-20 parts of glycidyl methacrylate, 0.01-0.03 part of a pH value regulator, 0.03-0.05 part of a reducing agent and 0.05-0.1 part of an initiator. The invention further discloses a preparation method of the glue. The glue provided by the invention has strong adhesion to most of materials, aging resistance, resistance to high temperature and low temperature, resistance to water washing, acid and alkali resistance, safety and environmental friendliness, and can be widely used for electrostatic flocking, coating additives and indoor and outdoor waterproofing projects.

The invention relates to the field of electric power, in particular to an electric power fault wave recording device with a dual processor structure. The device comprises a voltage transformer, a current transformer, a signal conditioning device, an A/D converter, a slave single-chip microcomputer, a master single-chip microcomputer, a liquid crystal displayer, a human-computer interaction device, a USB interface, a clock circuit, an on-off input circuit, an optoelectronic isolation device and a schmitt trigger. According to the electric power fault wave recording device with the dual processor structure, high-speed collected and input voltage and current, on-off contact signals and other electric quantities are converted to digital signals, sampling frequency is high, and the requirement for high-speed recording is met; in addition, dual processor control is used for achieving data processing, data storage and human-computer interaction, the storage capacity for fault data is large, and upgrade and capacity expansion are facilitated.

The invention provides a joint perception method for perceiving belief propagation in a heterogeneous cellular network. The joint perception method belongs to the technical field of cognitive radio. The joint perception method comprises three steps of modeling a Markov random field of each time slot network topology, converting a probability graph model to a factor graph, and realizing estimation for occupation of a specific radio channel by an authorized user by means of a unified complex-weighted belief propagation algorithm. The joint perception method for perceiving belief propagation in the heterogeneous cellular network has advantages of good performance in resisting error perception information, no requirement for any coordination equipment for centralized control, no restriction for number of nodes in the heterogeneous cellular network, and convenient expansion for system capacity.

The invention discloses a design method of a spherical or sphere-like lithium ion battery material based on Ni-Co-Mn ternary phase diagram analysis. A positive material is designed as follows: a core component is positioned at a high-capacity area (Ni is more than or equal to 0.7 and less than or equal to 1, and Co is more than or equal to 0 and less than or equal to 0.3) of a phase diagram according to the influence of different contents of Ni, Co and Mn to the performances of the positive material, and a shell material is positioned in a high-safety area (Ni is more than or equal to 1/3 and less than or equal to 0.5, and Mn is more than or equal to 1/3 and less than or equal to 0.5), so that the Li[(NinCo(1-m-n)Mnm)b(NicCodMn(1-c-d)a)]O2 material has high safety and compounding performances of a high-capacity material, wherein a is more than or equal to 0, b is less than or equal to 1, a+b is equal to 1, n is more than or equal to 1/3 and less than or equal to 0.5, m is more than or equal to 1/3 and less than or equal to 0.5, d is more than or equal to 0.7 and less than or equal to 1, c is more than or equal to 0 and less than or equal to 0.3, and d+c is less than or equal to 1. A core-shell structure material can show high specific capacity, high circulatory stability and high safety by the complementation of core and shell functions of the core-shell structure. Compared with a homogeneous-phase multielement material, the material disclosed by the invention has the advantages that the large-scale preparation cost is not increased, the repeatability is high, the batch stability is good, the production management is facilitated, and the large-scale commercialization application needs can be met.

A longitudinal magazine is longitudinally arranged above a gun barrel (1), the bottom of the longitudinal magazine faces a muzzle, double-row bullets arranged in a double-row magazine body (2) are perpendicular to the gun barrel, bullet tips of the double-row bullets face downwards,at a tail end (1a) of the gun barrel, the double-row magazine body is folded into a single-row magazine body (6) andbent downwards to form a 90-degree fan-shaped body, and the bullets perpendicular to the gun barrel are arranged to a to-be-shot position above the rear portion of the tail end of the gun barrel in aninduced mode; a sliding base (13) is arranged in the double-row magazine body, an arc-shaped push rod (15) is inserted into the sliding base, and the head end of the push rod is connected with a bullet pushing plate (11); a pushing spring (4) presses the sliding base and the bullet pushing plate to push bullets in the double-row magazine body, and a bullet pushing auxiliary spring (17) presses the bullet pushing plate to push bullets in the single-row magazine body. The magazine can reduce the firearm live wire height, is convenient for firearm operation and carrying, and is convenient for expanding the magazine capacity.

The invention discloses a log data processing method, system and device and a medium, the log data processing method is applied to a log storage system, the log storage system comprises a column database management system, and the method comprises the steps of obtaining target log data from the column database management system; processing the target log data in a preset management mode to obtain a log management result, wherein the preset management mode corresponds to at least one of IDC management, NODE management, cluster management, database management, table structure management, data pipeline management, account management, log management and log access management. According to the invention, through mutual cooperation and mutual coordination among multiple preset management modes, self-service management of the full life cycle of the log is realized, processing of super-large-scale log data and management of the column database management system are realized, and the operation, maintenance and management costs of the column database management system are greatly reduced.