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51results about How to "Influence characteristics" patented technology

Array substrate and display device

The invention discloses an array substrate and a display device. The array substrate comprises a glass substrate, wherein a first buffer layer is arranged on the glass substrate; a metal thin film is arranged above the first buffer layer; a second buffer layer is further arranged between the first buffer layer and the metal thin film. Through the second buffer layer arranged between the metal thin film and the first buffer layer, under the condition of heating, other elements except copper in the copper alloy can be separated out of the metal surface, and after annealing, the buffer layer can be formed to stop the copper metal to diffuse to a semiconductor layer, so that the diffusion of the metal elements cannot influence the property of a semiconductor, and in the meantime, substances in the semiconductor material can be prevented from diffusing to the metal thin film. Therefore, the adhesion ability of the metal thin film and the glass substrate can be enhanced, and the combination capacity of the metal thin film and the first buffer layer can be improved.
Owner:BOE TECH GRP CO LTD

Semiconductor component with dual whole metal silicide grids and manufacturing method thereof

InactiveCN101232016ADifferent operabilityDifferent characteristicsTransistorSolid-state devicesSalicideInsulation layer
The invention discloses a semiconductor element with full-metal-silicide dual-gate, which comprises a first transistor, a second transistor, a dielectric layer and an interlayer insulation layer. The first transistor is arranged on a substrate and includes a first metal silicide gate and a first source / drain. The second transistor is arranged on the substrate and includes a second metal silicide gate and a second source / drain. The material of the first metal silicide gate is different from that of the second metal silicide gate. The first metal silicide gate and the second metal silicide gate are produced in the same metal silicidation technology. The dielectric layer entirely covers the first and the second transistors, and the interlayer insulation layer is arranged on the dielectric layer.
Owner:UNITED MICROELECTRONICS CORP

An OLED substrate and a display device

The embodiment of the invention provides an OLED substrate and a display device, which relate to the technical field of display, and can solve the problem that light emitted from a light emitting layer in the prior organic electroluminescent device is emitted onto an active layer and affects the characteristics of a thin film transistor. The OLED substrate comprises a substrate, a thin film transistor, a first electrode and a light emitting layer sequentially arranged on the substrate; The thin film transistor comprises an active layer; The OLED substrate further includes a light shielding layer disposed between the active layer and the first electrode. A light emit device for preventing that thin film transistor from beingaffected by light emitted from the light emitting layer.
Owner:BOE TECH GRP CO LTD

LDMOS (Laterally Diffused Metal Oxide Semiconductor) transistor and manufacturing method thereof

The invention provides an LDMOS (Laterally Diffused Metal Oxide Semiconductor) transistor and a manufacturing method thereof. A plurality of STI (Shallow Trench Isolation) structures are arranged between a source region and a drain region, so that the breakdown voltage of the transistor is improved, and the problem that the central region of the bottom of the STI structure protrudes when the width of the STI structure broadens; based on the existing manufacturing process of the LDMOS transistor, the additional manufacturing process of the LDMOS transistor provided by the invention is not added, so that the degree of complexity of manufacturing is reduced; after the plurality of STI structures are formed, the subsequent manufacturing process does not need to be changed, so that the possibility of impact on certain characteristics of other devices positioned on the same semiconductor substrate is avoided; and the impact on some characteristics of the transistor itself is also avoided.
Owner:SEMICON MFG INT (SHANGHAI) CORP

Thin film transistor, fabrication method thereof, display substrate and display device

The invention provides a thin film transistor, a fabrication method thereof, a display substrate and a display device, and belongs to the technical field of display. The method comprises the steps of forming a metal oxide semiconductor pattern, wherein the metal oxide semiconductor pattern comprises a first metal oxide semiconductor layer and a second oxide semiconductor layer, and the second metal oxide semiconductor layer is arranged on the first metal oxide semiconductor layer; depositing a source-drain metal layer on the metal oxide semiconductor pattern; and etching the source-drain metal layer and the second metal oxide semiconductor layer to form a source electrode, a drain electrode and an active layer of the thin film transistor, wherein the active layer is obtained after the second metal oxide semiconductor layer between the source electrode and the drain electrode is removed by a first etching liquid, and the etching rate of the first etching liquid on the second metal oxide semiconductor layer is larger than the etching rate of the first etching liquid on the first metal oxide semiconductor layer. By the method, the stability of the metal oxide thin film transistor can be improved, and the display quality of the display device is ensured.
Owner:BOE TECH GRP CO LTD

Liquid discharging apparatus and circuit substrate

The invention a liquid discharging apparatus which can reduce configuration constrains of a cooling component so as to enable the configuration freedom degree of the cooling component to be higher ina circuit substrate with a drive circuit. The liquid discharging apparatus includes a print head that has a driving element and discharges a liquid when a drive signal is applied and the driving element is driven, a drive signal generation circuit that generates the drive signal based on a drive signal generation control signal for controlling generation of the drive signal, and a drive circuit substrate on which the drive signal generation circuit is provided. The drive circuit substrate has an input connector that inputs the drive signal generation control signal into the drive circuit substrate and an output connector that outputs the drive signal from the drive circuit substrate. A distance between the input connector and the output connector is shorter than a distance between the drive signal generation circuit and the input connector. The distance between the input connector and the output connector is shorter than a distance between the drive signal generation circuit and the output connector.
Owner:SEIKO EPSON CORP

Accelerated speed sensor

An accelerated speed sensor (1A) having a high voltage sensitivity and capable of preventing reduction of polarization due to pyroelectric effect, comprises a piezoelectric element (2) and support members (10, 11) for supporting the piezoelectric element at both longitudinal ends thereof, the piezoelectric element is laminated with three piezoelectric layers (2a, 2b, 2c), each of the two outer piezoelectric layers (2a, 2c) are longitudinally divided into four units (1)-(4), (5)-(8), respectively, when being applied accelerated speeds. Interlayer electrodes (3, 4) and main surface electrodes (5a, 5b, 6a, 6b) are provided on the piezoelectric element (2) so that two cells (1, 2, 5, 6) on one side of the piezoelectric element and two cells (3, 4, 7, 8) on the other side are connected respectively, and the parallel-connected two sets of cells on the two sides are connected in series. The electrodes (5a, 6a), (5b, 6b) induced to different ends of the piezoelectric element (2) are connected with each other.
Owner:MURATA MFG CO LTD

Manufacturing method of memory

The invention a manufacturing method of a memory, which comprises the following steps: providing a substrate, wherein the substrate comprises a memory cell zone and a perimeter zone, wherein a plurality of first grids are formed in the memory cell zone, and a plurality of first openings are arranged among the first grids; forming a nitride layer on the substrate in the memory cell zone, wherein the nitride layer is covered on the first grids and the first openings; forming an oxide layer on the substrate in the perimeter zone; carrying out a nitridizing technique to nitridize the oxide layer into a nitridized oxide layer; and forming a conductor layer on the substrate, wherein the conductor layer comprises a coverage layer positioned on the substrate in the memory cell zone and a plurality of plate grids positioned on the substrate in the perimeter zone, and the coverage layer is covered on the nitride layer and fully filled in the first openings.
Owner:WINBOND ELECTRONICS CORP

Electric quantity measurement method, measuring circuit and method of calibration coefficient, and terminal device

The invention, which relates to the field of the electronic technology, discloses an electric quantity measurement method, a measuring circuit and method of a calibration coefficient, and a terminal device. The measuring circuit for an electric quantity calibration coefficient comprises a fixed-value resistor and a resistor connector that are arranged on the circuit board. A first pin group of the battery connector is connected with a positive electrode of a battery electrically; and a second pin group is connected with a negative electrode of the battery electrically. When the battery is connected to the battery connector electrically, a first end of the fixed-value resistor is connected with the negative electrode of the battery electrically by the second pin group and a second end of the fixed-value resistor is grounded. The first end and the second end enable test points arranged at the circuit board to be led out respectively; and the test points are used for contact with test heads of a constant-current source or a test instrument. Compared with the prior art, the measuring circuit enables the current flowing through the fixed-value resistor to be calibrated and the capacity of the battery to be tested, so that the damage to the circuit board can be avoided and the current calibration precision as well as the accuracy of the electric quantity testing result can be guaranteed.
Owner:SHANGHAI YUDE TECH CO LTD

Trench type power transistor and manufacturing method thereof

The invention provides a trench type power transistor, which includes a semiconductor substrate, wherein the semiconductor substrate comprises at least one active part, the at least one active part has a gate trench structure, and the gate trench structure is provided with a surrounding wall which extends downwards from the top surface and defines a gate trench, a first isolation layer which is made of an insulating material and extends to cover the surface of the surrounding wall, an isolation unit which is made of an insulating material, is filled in the gate trench and covers the first isolation layer, a shielding electrode located at the bottom of the gate trench, and a gate electrode located above the shielding electrode. By means of the structural design of the isolation unit, the fourth isolation layer wraps the peripheral face, adjacent to the shielding electrode, of the gate electrode so as to isolate the gate electrode from the nitride material, so that the defect that due tothe fact that the gate electrode makes contact with nitride or is too close to the nitride, interaction is generated, and element characteristics are affected can be overcome. The invention also provides a method for manufacturing the trench type power transistor.
Owner:LEADPOWER SEMI CO LTD

Array substrate, stretchable display panel and display device

The invention discloses an array substrate, a stretchable display panel and a display device, and relates to the technical field of electronic display devices. The array substrate includes a base substrate, a planarization layer, a pixel defining layer, a first electrode layer, and a thin film encapsulation layer which are successively stacked; a thin film transistor is disposed between the planarization layer and the base substrate; a plurality of openings are disposed to pass through the thin film encapsulation layer, the first electrode layer, the pixel defining layer, the planarization layer, and the base substrate to define a plurality of islands spaced apart; the edge of the first electrode layer extends to a sidewall covering the planarization layer for shielding the thin film transistor against light; the edge of the first electrode layer is in contact with a conductor; and the conductor passes through a bridge region arranged between the openings and the islands and used for connecting adjacent islands in order to be used as a power wire for connecting the first electrode layers of the adjacent islands.
Owner:BOE TECH GRP CO LTD

Color coated antifouling conductive cloth and manufacturing method thereof

The present relates to antifouling conducting cloth being coated with a color and the manufacturing method thereof. The method comprises the following steps: a conducting cloth provided with a metal layer and waved by natural fiber or artificial fiber is provided, and at least one colored resin coating layer is formed on the metal layer with knife coating mode, wherein, the surface of the resin coating layer is not higher than the cross salient point of the yarn in the weft and warp direction of the conducting cloth. The conducting cloth of the present invention is characterized in that the cloth has colored appearance, can prevent man induced or environmental contamination, and has low surface resistance.
Owner:FORMOSA TAFFETA CO LTD

Auxiliary node equipment in EPON (Ethernet passive optical network)

The invention provides auxiliary node equipment in the EPON (Ethernet passive optical network), which relates to the field of the Ethernet passive optical network in the optical network and aims to solve the problem of a great quantity of redundant information in download transmission of the EPON SYSTEM and can realize data transmission by supporting recycling time slot resources used by redundant information, delete download information, extract communication data among ONUs (optical network units) in small areas in uploading data and utilize the time slot resources released from the redundant information to transmit the extracted communication data among ONUs in the small areas and 'resource data' stored in auxiliary nodes. The node structure of the auxiliary node equipment in the EPON supports recycling of the time slot resources occupied by the download redundant information, service efficiency and download throughput of the download band width can be effectively improved, and transmission time delay of communication data among the ONUs inside the small areas can be reduced.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Method for optimizing nozzle of a internal combustion engine

The invention relates to a method for optimizing a nozzle of an internal combustion engine comprising a nozzle body (1) and a nozzle needle (3) which can be moved axially against a closing force in a bore (2) of the nozzle body (1), wherein , the nozzle needle (3) has a valve sealing surface (4) on its end face on the combustion chamber side. The seat surface (6) of the nozzle body (1) acts together, wherein for the geometry of the nozzle, a mathematical method in the form of particle swarm optimization (PSO) is used with arbitrarily chosen independent parameters and in the design of the nozzle The structure is referenced as a criterion for optimization calculations.
Owner:MAN ENERGY SOLUTIONS SA

Inductive coupling type direct-current fault current limiter and control method thereof

The invention discloses an inductive coupling type direct current fault current limiter and a control method thereof. The inductive coupling type direct current fault current limiter structurally comprises a first bridge arm, a second bridge arm, a third bridge arm, a fourth bridge arm and an H bridge circuit formed by the first bridge arm, the second bridge arm, the third bridge arm and the fourth bridge arm, wherein the first bridge arm and the second bridge arm are connected in series, the fourth bridge arm and the third bridge arm are connected in series, and a series branch formed by the first bridge arm and the second bridge arm is connected with a series branch formed by the third bridge arm and the fourth bridge arm in parallel. The control method for the inductive coupling type direct-current fault current limiter comprises the steps: initializing, and when a fault signal is detected, turning off an IGBT set, so that current consumption of an inductance loop is made to be zero; triggering the IGBT set again; and recovering a current limiter to prepare for the next fault. Compared with the prior art, the inductive coupling type direct current fault current limiter is used for a low-voltage flexible direct-current power distribution network, and has the advantages that 1) during normal operation, adverse effects on transient response characteristics and operation stability of a direct-current system are avoided, and 2) after direct current fault, the rapid rising of the fault current can be effectively limited, and sufficient action time is created for protection and fault isolation.
Owner:TIANJIN UNIV

Online agricultural non-point source pollution monitoring system

The invention discloses an online agricultural non-point source pollution monitoring system. The online agricultural non-point source pollution monitoring system comprises multiple monitoring stations, a communication network and a monitoring centre; the monitoring stations are arranged in different non-point source pollution points, and used for acquiring sewage in real time, performing water quality analysis, and transmitting water quality analysis data to the monitoring centre through the communication network; a sampling and pre-processing unit, a water quality analysis unit, an illumination unit and a monitoring unit are arranged in the monitoring station; the sampling and pre-processing unit comprises a sampling pump and a filter; the water quality analysis unit comprises a samplingtank and an analyzer arranged in the sampling tank; the analyzer is connected to a control cabinet; a control unit is arranged in the control cabinet; and the control unit is used for controlling theaction of the sampling pump, a water level indicator and the analyzer in the monitoring station and communication with the monitoring centre, and transmitting a water quality analysis result and an illumination condition in the monitoring station and the monitoring information of the monitoring unit to the monitoring centre. By means of the online agricultural non-point source pollution monitoringsystem disclosed by the invention, multi-point online monitoring of agricultural non-point source pollution is realized; the automation degree is high; and manpower and material resources are saved.
Owner:北京博瑞环境工程有限公司 +1

DC voltage switch

The invention relates to a DC voltage switch having a first and second terminal for serial incorporation in a first pole of a DC voltage network, wherein a secondary current path having a semiconductor switch extends between the terminals, and an operating current path having a mechanical switch and, in series therewith, the primary-side winding of a transformer is arranged in parallel with the secondary current path, the secondary-side winding of the transformer is wired between a voltage source and a third terminal for incorporation into a second pole of the DC voltage network, a switch in series with the secondary-side winding of the transformer is arranged between the voltage source and the third terminal, the voltage source is connected to the first terminal via a diode and a chargingresistor, there is a control device for driving the switch, which is configured to determine the voltage of the voltage source repeatedly after the mechanical switch has been opened and to switch theswitch on at intervals in such a way that the voltage determined remains below a definable threshold value.
Owner:SIEMENS AG

Method for enhancing weeding toxicity of bipolarisgraminus spores

PendingCN111088172AIncreased pathogenicitySignificantly increased pathogenicityBiocideFungiBiotechnologyMicroorganism
The invention relates to a method for enhancing the weeding toxicity of bipolarisgraminus spores, belonging to the technical field of microorganisms. The bipolarisgraminus spores are obtained by circularly inoculating barnyard grass seeds for 8-12 times for domestication culture. According to the method disclosed by the invention, the pathogenicity of the bipolarisgraminus spores to various kindsofbarnyard grass is improved, and particularly, the pathogenicity of the bipolarisgraminus spores to echinochloa caudata, echinochloa esculenta and echinochloa frumentacea is obviously increased. In the domestication process, the safety of spores to main crops is not obviously changed, and the heat resistance of produced spores and the spores and the characteristics of the produced spores are notobviously influenced. The product provided by the invention has better advantages in terms of weeding toxicity than undomesticated bipolarisgraminus spores.
Owner:CHINA NAT RICE RES INST

Method for improving gel properties of fish myofibrillar protein based on combination of kelp polyphenols and polyphenol oxidase

The invention relates to the technical field of deep processing of aquatic products, and discloses a method for improving gel properties of fish myofibrillar protein based on combination of kelp polyphenols and a polyphenol oxidase. The method for improving the gel properties of the fish myofibrillar protein based on combination of the kelp polyphenols and the polyphenol oxidase includes the following steps: S1. extracting the fish myofibrillar protein; S2. taking the fish myofibrillar protein, adding a kelp polyphenol solution and the polyphenol oxidase, and then homogenizing and mixing; S3.performing cold storage on and standing an obtained mixture; S4. heating at 40-100 DEG C for 5-30 minutes; and S5. cooling and balancing to obtain a fish myofibrillar protein glue product. The methodfor improving the gel properties of the fish myofibrillar protein based on combination of the kelp polyphenols and the polyphenol oxidase enables the gel strength of the fish myofibrillar protein glueproduct to be effectively improved, is simple and easy to operate in process, and is convenient for industrial production.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Method for improving thermal stability of beet red pigment

The invention relates to a method for improving thermal stability of beet red pigment. A compound composition of a hydrophilic colloid, antioxidant and cyclodextrin is mixed with the beet red pigmentto complete the method. Compared with the prior art, the method provided by the invention significantly inhibits degradation of the beet red pigment due to heat, improves the thermal stability of thebeet red pigment, and basically maintains the original characteristics of the beet red pigment; and the method is simple in operation and low in cost, and has good application prospects in the fieldsof food industry and related industry.
Owner:上海嘉萃生物科技有限公司

Detection kit and detection method using antibody to modify immuno-PCR reaction

The present invention belongs to the field of immunological detection methods. A purpose of the present invention is to provide a detection kit and a detection method using antibody to modify an immuno-PCR reaction. The detection method comprises synthesis of DIBO-labeled ssDNA, biotin modification of Insulin monoclonal antibody, preparation of ssDNA-modified immuno-PCR micro-pore plate of Insulin monoclonal antibody, establishment of Immuno-PCR standard curve of Insulin, and other steps. According to the present invention, with the application of the antibody modification technology in the immuno-PCR reaction, the detection on the ultra low concentration biotin marker can be performed, the sensitivity of the detection method of the present invention can exceed 1000 times the sensitivity of the conventional ELISA method, and the extremely-low concentration biomarker can be detected.
Owner:程永升 +1

Yogurt having antioxidant functions and preparation method thereof

The invention belongs to the field of food, and specifically relates to yogurt having antioxidant functions and a preparation method thereof. The preparation method includes the following steps: 1) preparing reconstituted milk; 2) performing homogenization; 3) performing sterilization; 4) performing enzyme hydrolysis, and performing hydrolysis after adding trypsin into the reconstituted milk; 5) performing enzyme inactivation; 6) inoculating a microbial agent, mixing the lyophilized powder of streptococcus thermophilus, lactobacillus bulgaricus and lactobacillus plantarum in proportion to inoculate into the reconstituted milk; 7) performing split charging and fermentation; and 8) performing post-ripening. The method uses the lactobacillus plantarum with high oxidation resistance and lacticacid bacteria with strong protein hydrolysis ability to prepare the yogurt through co-fermentation; and through proper enzymolysis of raw milk by protease, the degree of proteolysis of the raw milk can be increased, so that the problems of poor growth of the lactobacillus plantarum in the milk can be solved, and the antioxidant activity of products can be enhanced. The selected fermentation strains have good viscosity producing characteristics, and can guarantee the curd effects and sensory flavor characteristics of the products by collaborating with whey protein powder fortified raw milk.
Owner:SICHUAN DONGPO CHINESE PAOCAI IND TECH RES INST

Suction disc device and element transfer method

The invention provides a suction disc device and an element transfer method, and the suction disc device is used for absorbing at least one element. The suction disc device comprises an electrostaticsuction disc and patterning conductive layers, the patterning conductive layers are arranged on the electrostatic suction disc and are provided with at least one opening capable of exposing out a partof the electrostatic suction disc, when the electrostatic suction disc is powered on, the part, exposed by the at least one opening, of the electrostatic suction disc induces at least one element togenerate dipole-dipole force with the part of electrostatic suction disc, and the at least one element is made to be adsorbed to the part of electrostatic suction disc through the at least one opening. According to the suction disc device provided by the invention, the suction disc device adsorbs the element by means of the manner that the electrostatic suction disc induces the element to generatedipole-dipole force with the electrostatic suction disc, and by means of the element transfer method provided by the invention, the situation that the element is broken down by an electrostatic forceis avoided.
Owner:UNIMICRON TECH CORP

Top gate thin film transistor manufacturing method and top gate thin film transistor

The invention provides a top gate thin film transistor manufacturing method and a top gate thin film transistor. The manufacturing method comprises the steps of providing a glass substrate; forming a oxide semiconductor layer on the glass substrate, wherein the oxide semiconductor layer comprises a source region, a drain region and a channel region; forming a gate insulation layer at the position corresponding to the channel region on the oxide semiconductor layer; forming a grid electrode on the gate insulation layer; depositing an interlayer dielectric at the surface of the grid electrode, the surface of the oxide semiconductor layer and the surface of the glass substrate by adopting a method of chemical vapor deposition, and performing conductor processing on the surface of the source region and the surface of the drain region; and forming a source electrode and a drain electrode, wherein the source electrode and the drain electrode are electrically connected with the source region and the drain region of the oxide semiconductor layer respectively. The manufacturing method has the advantages that conductor processing can be performed when the interlayer dielectric is deposited, and a high migration rate and on-state current can be ensured.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Gear metering pump

The invention discloses a gear metering pump. A pump body is provided with a gear cavity, a first lubricating groove and a second lubricating groove. A first driving bearing, a second driving bearing, a first driven bearing and a second driven bearing are fixed on the two side walls of the gear cavity, the non-driving end of a driving shaft is fixed in the first driving bearing and the second driving bearing, and both the first driving bearing and the non-driving end of the driving shaft are positioned at the opening part of the first lubricating groove. One end of a driven shaft is fixed on the first driven bearing, and both the first driven bearing and one end of the driven shaft are positioned at the opening part of the second lubricating groove. Both a driven gear and a driving gear are positioned in the gear cavity, and the driven gear is meshed with the driving gear. Through the mode, part of a fluid medium entering clearances between the driving shaft and the driving bearings and clearances between the driven shaft and the driven bearings can be collected through the lubricating grooves, so that the phenomenon that the fluid medium returns the gear cavity, affects the purity of other fluids and affects the properties of the fluids is avoided.
Owner:SHEN ZHEN SINNO OPTOELECTRONICS TECH CO LTD

Color coated antifouling conductive cloth and manufacturing method thereof

The present relates to antifouling conducting cloth being coated with a color and the manufacturing method thereof. The method comprises the following steps: a conducting cloth provided with a metal layer and waved by natural fiber or artificial fiber is provided, and at least one colored resin coating layer is formed on the metal layer with knife coating mode, wherein, the surface of the resin coating layer is not higher than the cross salient point of the yarn in the weft and warp direction of the conducting cloth. The conducting cloth of the present invention is characterized in that the cloth has colored appearance, can prevent man induced or environmental contamination, and has low surface resistance.
Owner:FORMOSA TAFFETA CO LTD

Optically transparent mark for marking gemstones

The invention relates to marks used for marking gemstones, inter alia rough or cut diamonds, containing various types of information such as, for example, an identification code, and more particularly relates to marks which are invisible to the naked eye and under magnifying glasses and various types of microscopes, and which are placed inside the body of a rough or cut diamond without producing an effect that is detrimental to the quality of said rough or cut diamond. The invention addresses the technical problem of extending the use of such a mark to rough diamonds containing different amounts and types of natural impurities, inter alia nitrogen, and achieves the technical result of solving said problem while at the same time simplifying the marking process and reducing the potential effect of said process on the properties of the stone. This technical result is achieved by the use of an optically transparent mark placed inside the body of a rough or cut diamond, said mark containing predetermined encoded information and consisting of a given combination of micron- or submicron-sized optically transparent elements that are regions containing an elevated concentration of atomic defects in the crystal lattice of a rough or cut diamond, said atomic defects in the crystal lattice of a rough or cut diamond being vacancies and interstitials, wherein information is encoded in at least two regions of elevated concentration of said atomic defects.
Owner:阿尔罗萨私人有限公司

Voltage balance method between bridge arms of modular multilevel converter based on peak prediction

The invention discloses a peak-prediction-based method for balancing voltage between modularization multi-level current converter bridge arms, and belongs to the technical field of power electronic device control. The method comprises the steps that the phase position of the equivalent voltage connected to a reactance valve side and the phase position of the bridge arm voltage are calculated when the equivalent voltage and the bridge arm voltage have the maximum value, the maximum value of the voltage fluctuation of each bridge arm is predicted, and the effective value of the interphase balance current and the effective values of the balance current of the upper and lower bridge arms of each phase are respectively calculated according to the predicted maximum value; according to the fundamental wave phase position of the equivalent voltage on the valve side and the proposed formula, coordinate transformation is conducted on the interphase balance current and the balance current of the upper and lower bridge arms in each phase, and a balance current instantaneous value instruction with the format being circular current inside a current converter is obtained. According to the peak-prediction-based method for balancing the voltage between the modularization multi-level current converter bridge arms, the response speed of a bridge arm voltage balance controller can be increased, the fluctuation peak can be directly controlled, capacitance overvoltage can be better avoided, and no influences on external characteristics of the current converter are produced.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1

Battery case

The invention is directed to a battery case (1) comprising a compartment (2) for at least one battery module (3). Two first outer beams (4) extending in a first spatial direction (x) and two second outer beams (5) extending in a second spatial direction (y) are arranged essentially perpendicular to the first spatial direction. The first and second beams (4, 5) are forming a frame-like support structure (6). A tub-shaped insert (7) is connected to the grid like support structure (6) from a third direction (z) arranged essentially perpendicular to the first and the second direction (x, y). A closure (8) closes the tub-shaped insert (7) to form the closed compartment (2) for the at least one battery module.
Owner:MUBEA CARBO TECH
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