151 results about "Power application" patented technology

The invention discloses a high-safety anti-overload fast-charging electronic wire harness system and an electronic wire harness, and belongs to the technical field of electronic wire harness safety protection, and the system comprises a sensing module, a load prediction modeling module, an anomaly detection module, a bypass control module, a central fast-charging regulation and control module and an optimization module. A local load prediction function is constructed by collecting a current change rate and a conductor thermal response curve at the initial stage of fast charging in real time, a resistance abrupt change area is judged, and dynamic current limiting and bypass shunting are carried out; the central module can adjust charging parameters of the next cycle according to historical load characteristics, and the optimization module corrects a prediction model through multi-cycle learning to realize adaptive control; the electronic wire harness integrates a thermoelectric sensor, a resistance sampling unit and a controllable bypass path, and has quick response and local shunting functions; the overload protection capability and the operation safety of the electronic wire harness in the fast charging system can be effectively improved, and the method is suitable for high-power application scenes such as new energy automobiles and high-speed charging piles.

The invention provides a spacecraft thermal test thermal response automatic test method and system. The method comprises the steps that S1, preset configuration information is acquired, and a resistance interpretation test is carried out on a current power output loop; s2, initial test current is applied to the power output loop passing the test, and the temperatures of all test points are obtained regularly; and S3, judging whether the temperature change of the measuring point meets the response condition or not, if so, judging that the power output loop is matched with the measuring point meeting the response condition, and testing the next power output loop, and if not, returning to the step S2 and increasing the test current step by step until the measuring point meeting the matching condition exists. The testing process is high in safety, it is initially determined that the configuration of the power output loop is not abnormal, then the matching performance of the temperature measuring point and the power output loop is determined step by step in a stepped power-up mode, and the problems that due to the fact that the current applied to the power output loop is too large for a long time, a heating piece is burnt or the temperature of a product is abnormal are completely eradicated.

The invention discloses an energy storage system cell equalization decision-making method, equipment, a medium and a program product, and relates to the field of battery detection equipment. In the method, when it is monitored that a target cell unit triggers a preset equalization condition, historical operation data is acquired, and based on the data, a long-term aging rate representing a long-term health risk of a cell is calculated, a power fluctuation characteristic of a system application scene is identified, and a recoverable electric quantity of a current equalization income is quantified. According to the method, the balancing task in a high-power application scene can be preferentially processed; and for other scenes, the risk urgency obtained by mapping the long-term aging rate is combined with the recoverable electric quantity to generate a comprehensive priority, and a final equilibrium decision is formed according to the comprehensive priority. By implementing the technical scheme provided by the invention, limited balance resources can be applied to the battery cells with high risk and high income, so that the overall operation efficiency and economical efficiency of the energy storage system are improved while the system safety is guaranteed.

The invention relates to a multi-security protection method for an electric power application shopping mall, and the method comprises the following steps: S1, collecting and recognizing the fingerprint information of equipment, then carrying out the credibility evaluation of the equipment, and outputting an authenticated and credible user session voucher; s2, dynamically judging a function and a data range which are allowed to be accessed in combination with a shopping mall permission model, and verifying whether the permission conforms to the current application or not in real time; s3, when a user accesses the application, deploying a runtime application self-protection component according to each running application, monitoring the running state of the application in real time, and obtaining monitoring content; s4, establishing an application normal behavior baseline based on a machine learning algorithm, and identifying an abnormal behavior by comparing a real-time behavior with a baseline model according to the monitoring content; and S5, when the security risk is detected, the system automatically executes corresponding response measures according to the risk level. The reliability of the electric power application shopping mall is effectively improved.

The invention belongs to the technical field of high-power electronic component base materials, and discloses an embedded high-thermal-conductivity ceramic packaging substrate for a high-power scene and a preparation method of the embedded high-thermal-conductivity ceramic packaging substrate. ABF composite layers are arranged above and below a ceramic core plate in the ceramic packaging substrate; a high-thermal-conductivity base material is fixed in the ceramic substrate; interconnection holes are formed in the ceramic substrate, and electroplating copper film layers are arranged on the upper surface and the lower surface of the ceramic substrate and in the interconnection holes; a copper-clad plate layer is arranged on the outer side of the ABF layer, a copper-clad plate groove is formed in the copper-clad plate layer, a blind hole is formed in the copper-clad plate groove, and a copper column is arranged in the blind hole; a solder mask layer is arranged on the surface of the ABF layer on the outermost side, a surface treatment layer is arranged on the outer side of the solder mask layer, and blind holes with built-in copper columns are formed in the surface treatment layer. The preparation method comprises the following steps: forming a substrate groove in the surface of the ceramic substrate; embedding a high-thermal-conductivity base material; arranging an electroplating copper film coating layer; an ABF composite layer is arranged; arranging a solder mask layer; and arranging a surface treatment layer. The LED lamp is good in heat dissipation effect.

The invention relates to a domestic environment-oriented power application performance anomaly detection method and system, and the method comprises the following steps: S1, obtaining a domestic basic environment, power real-time data, an application system performance index and a business operation log, and carrying out the preprocessing, and obtaining a multi-dimensional time series data matrix; s2, performing feature engineering and feature optimization based on the multi-dimensional time sequence data matrix to obtain an optimized feature matrix; s3, constructing a multi-level AI anomaly detection model based on the optimized feature matrix in combination with historically labeled anomaly samples; s4, according to the multi-level AI anomaly detection model and the preprocessed real-time data, obtaining an anomaly detection result; and S5, according to an anomaly detection result, obtaining an alarm strategy and a disposal white list, and converting the anomaly detection result into operable alarm and disposal. According to the method, the operation and maintenance pressure and the response risk are powerfully reduced, and the whole-process intelligent and refined management from anomaly detection to alarm disposal is realized.

The invention provides a thermal management method and system suitable for a high-specific-energy power battery, and relates to the technical field of new energy power battery thermal management and safety monitoring, and the method comprises the steps: switching three heat exchange modes based on a thermal load grade, and carrying out the constraint through a hysteresis threshold; and after filtering, constructing a multi-parameter early warning logic, outputting three-level early warning according to a combined threshold value, and executing corresponding treatment. The system comprises a partition box body, a battery module with a composite porous interlayer, a closed thermal management loop and a BMS (Battery Management System) integrated with optical fiber sensing. Structural protection, heat management and monitoring disposal integrated cooperation can be achieved, the data collection precision and heat exchange stability are improved, early accurate early warning can be achieved, fault upgrading is restrained, the operation safety of the power battery is remarkably improved, the service life of the power battery is remarkably prolonged, and the high-power application requirement is met.

The invention discloses a chip structure for high-power packaging and a preparation method thereof, relates to the field of power semiconductor devices, and provides a gallium nitride power device structure applied to high-power application, the gallium nitride power device structure is provided with a thick metal substrate and a thick metal top weldable metal layer, so that the gallium nitride power device structure has good heat dissipation performance and better device reliability; the invention also provides a plurality of methods for forming the gallium nitride power device structure for high-power application, and the method has lower production cost and production stability; the invention further provides a peripheral structure of the gallium nitride power device and a forming method of the peripheral structure, the chip can be prevented from cracking during cutting, and the reliability of the device is improved.

The invention belongs to the technical field of power electronics, and particularly relates to a parallel drive circuit of a silicon carbide power device and a motor drive system.The parallel drive circuit comprises a drive power source, a drive chip, a power switch unit and a plurality of drive shunt units, the current sharing resistor is connected with the auxiliary source electrode of the silicon carbide power device and the common power source electrode node. The problem of current imbalance when a plurality of silicon carbide power devices are used in parallel can be solved, the driving consistency and the system reliability are improved, meanwhile, an overcurrent protection function is provided, and the device is suitable for large-power application scenes such as new energy automobile electric control.

The invention provides a route selection method and device for a computing power network of an intelligent computing center cloud platform based on a predefined rule, and relates to the technical field of intelligent computing centers, intelligent computing centers and computing power infrastructures. Obtaining a destination address carried in the computing power operation data packet, wherein the destination address is a network address of the target computing power application; s2, the gateway queries a computing power network routing table based on the network address of the target computing power application, and obtains a plurality of candidate next-hop routing addresses corresponding to the network address of the target computing power application and a routing priority of each candidate next-hop routing address; s3, the gateway selects an optimal next-hop routing address from a plurality of candidate next-hop routing addresses corresponding to the network address of the target computing power application based on a predefined rule; and S4, the gateway sends the computing power operation data packet to the optimal next-hop routing address.

A method including drilling a wellbore using a drill bit connected to a drill string. The drill string includes a vibrational energy harvester and a tool disposed inside a casing of the drill string. The vibrational energy harvester includes a stator including a conductive coil, and a rotor including magnets disposed outside the conductive coil. The rotor is unpowered. The rotor is free to rotate outside the conductive coil, and the rotor is unattached to other components of the drill string. The method also includes generating vibrations in the drill string by engaging the drill bit to a bottom of the wellbore. The method also includes harvesting electricity generated in the stator as the rotor rotates in response to the vibrations. The method also includes supplying, via an electrical connection between the stator and the tool, the electricity to the tool.

The invention discloses a GaN power electronic device capable of realizing CMOS (complementary metal oxide semiconductor) monolithic integration. The device comprises a substrate, an AlN buffer layer, a first i-GaN channel layer, a p-GaN buried layer, a second i-GaN channel layer, an AlN insertion layer, an AlGaN barrier layer and a p-GaN cap layer from bottom to top, the deep groove for device isolation extends into the AlN buffer layer; the p-GaN cap layer on the AlGaN barrier layer is partially removed, a source electrode and a drain electrode are transversely and sequentially arranged on the AlGaN barrier layer, and a gate electrode is arranged on the reserved p-GaN cap layer; a passivation layer covers the AlGaN barrier layer and the p-GaN cap layer, and interconnection metal is arranged on the source electrode, the drain electrode and the gate electrode, so that the GaN power electronic device with a p-GaN / AlGaN / AlN / i-GaN / p-GaN / i-GaN / AlN structure is formed. According to the invention, not only are the characteristics of high voltage resistance, low power consumption and excellent thermal conductivity and can be applied to high-voltage and high-power application scenarios, but also an enhanced p-channel GaN FET device can be developed based on the structure, a CMOS monolithic integrated phase inverter can be prepared, and monolithic integration of the GaN-based semiconductor device and a driving circuit thereof is realized.

This utility model relates to the technical field of power transmission devices, specifically to a common-enclosure busbar trunking with internal anti-scratching features. It includes a side plate, the outer wall of which is fixedly connected to the side wall of a heat dissipation baffle. The top surface of the heat dissipation baffle has an mounting groove, and the interior of the mounting groove contains a protective layer. The busbar body is placed inside the protective layer. The top surface of the side plate is connected to a cover plate via fixing bolts. The bottom surface of the cover plate has a pressure block, and the bottom surface of the pressure block has a protective strip. This improved common-enclosure busbar trunking effectively protects the busbars within the protective layer and strip by incorporating a protective layer inside the mounting groove, a protective strip on the bottom of the cover plate, and a pressure block. Furthermore, the bottom heat dissipation baffle enhances ventilation and heat dissipation within the enclosure. This design solves the problems of insulation damage caused by scratches inside existing common-enclosure busbar trunkings and the poor heat dissipation of enclosed busbar trunking structures. It is suitable for important power applications.

This invention discloses a silver paste material for low ESR stacked solid-state capacitors, its preparation method, and the capacitor thereof. The silver paste material is prepared by a method comprising the following steps: S1, organic carrier preparation: mixing a main solvent, a co-solvent, a dispersant, and a plasticizer to obtain an organic carrier; S2, low-speed mixing: first adding all the required proportions of spherical silver powder to the organic carrier and stirring at low speed, then adding flake silver powder in batches and continuing to stir until a uniform paste is formed. By weight percentage, the components of the silver paste material include: 20%~35% flake silver powder, 20%~30% spherical silver powder, 10%~20% main solvent, 2%~4% co-solvent, 13%~30% binder, 2%~4% dispersant, 1%~3% defoamer, and 1%~3% plasticizer. This invention protects the morphological integrity of flake silver powder, forming a dense conductive network. The total silver powder content can be as low as 40wt%. The preparation process is simple, reducing material costs and achieving the best balance between electrical performance and cost. It is suitable for high-power applications such as AI servers, 5G communications, and new energy vehicles.

Assessments of guardrails of LLMs, whether used by an application or within an AI / LM stack, must be dynamic to protect against the ongoing engineering of jailbreaking prompts. An assessment framework has been created that facilitates assessment of language model guardrails. The assessment framework includes a prompt generator and has access to sensitive data (e.g., source code, trade secret, confidential documents, etc.) that occurs in training data of a model being assessed. The framework provides the prompt generator jailbreaking strategies and categories of the sensitive data (e.g., program code, trade secret, confidential document.). With the data categories and the strategies, the prompt generator generates different prompts and submits them to the AI-powered application or LM stack being assessed. The assessment framework then analyzes the outputs / responses from the AI-powered application or LM stack to determine whether guardrails have been subverted and any of the sensitive data has been exfiltrated.

The invention provides a single-phase alternating-current permanent magnet brushless motor which is different from a common single-phase alternating-current motor, a motor stator of the single-phase alternating-current permanent magnet brushless motor is formed by stacking silicon steel sheets with barrel-shaped interiors and armature slots and armature teeth for winding, and a cylindrical rotor is provided with permanent magnets with magnetic lines perpendicular to a motor rotating shaft in the radial direction. Magnetic lines generated by the stator and the rotor are perpendicular to a motor shaft, stator coils are concentrically wound in a distributed mode, the stator coils can be directly used on a single-phase alternating current power supply without a driver, and the speed can be adjusted through a frequency converter. Compared with a traditional single-phase alternating current motor, the motor power and torque are improved under the condition of the same specification, all south and north poles of the magnetic rotor containing the permanent magnets are driven during driving each time, and high electric energy driving efficiency and high power density are achieved. And energy conservation and emission reduction are achieved in daily industrial power application, and wide application prospects are achieved.

The present invention relates to a rotary stage mechanism for a precision press device. The rotary stage comprises a rotary table that rotates around a vertical axis and a stage body that supports the rotation of the rotary table by housing it in an internal space with the rotary table partially pulled down and rotates the rotary table upon power application. The stage housing is fixed to the lower side of a lifting block that moves up and down along a vertical axis by a vertical drive, and fixes the stage body by housing the rotary stage in an internal space with an open lower side. The rotary block is fixed to the upper side of a compression head and is inserted through the lower opening of the stage housing to be fixed coaxially with the rotary table. A bearing for the rotary block is mounted between the stage housing and the rotary block to support the rotation of the rotary block.

A secondary controlled AC-DC converter and method for low frequency operation are disclosed. A secondary controlled AC-DC converter including an oscillator in a primary side controller (PSC) and a method for operating it to enable soft start and low frequency operation are provided. Generally, the method includes driving a power switch coupled between an AC input and a primary side of the converter with a gate drive (GD) signal. At start up and after an automatic restart, the GD signal is generated using an oscillator signal from the oscillator. After receiving a start-stop pulse from a secondary side controller, the oscillator signal is decoupled from the GD signal using a controller in the PSC and the PSC begins generating the GD signal with a pulse width modulation (PWM) generated using the start-stop pulse. The oscillator operates at a first frequency independent of the PWM signal. The PWM signal includes one of a plurality of frequencies selected based on power drawn from the converter and can be less than the first frequency in low power applications.

Different from a common three-phase alternating-current motor, a motor stator of the triangular connection three-phase alternating-current permanent-magnet brushless motor is formed by stacking silicon steel sheets with barrel-shaped interiors and armature slots and armature teeth for winding, and a three-phase winding on the stator adopts a triangular connection method. The cylindrical permanent magnet rotor is radially provided with the permanent magnets of which the magnetic lines are vertical to the rotating shaft of the motor, so that the motor can be directly used on a three-phase alternating-current power supply without a driver, and can also be subjected to speed regulation through an alternating-current frequency converter, and compared with a traditional three-phase alternating-current motor, the efficiency, power and torque of the motor are improved under the condition of the same specification; and all south and north magnetic poles of the magnetic rotor containing the permanent magnets are driven during driving each time, so that high electric energy driving efficiency and high power density are realized. Energy conservation and emission reduction are achieved in daily industrial power application, and the three-phase alternating current motor has the application prospect of replacing a three-phase alternating current motor which is widely used at present and is of great significance.

This invention discloses a GaN bidirectional blocking device with a polarized gate structure and its fabrication method, relating to the field of semiconductor device technology. The device includes a substrate with a thickness of 400 μm-1000 μm, a buffer layer of GaN with a thickness of 500 μm-5000 μm disposed on the substrate, a GaN channel layer disposed on the buffer layer, and an AlGaN barrier layer disposed on the GaN channel layer with a thickness of 15 nm-30 nm. An active electrode is disposed on the AlGaN barrier layer. This GaN bidirectional blocking device with a polarized gate structure and its fabrication method, based on the material structure, allows the p-GaN layer at the drain electrode and the drain metal to form a junction barrier Schottky diode structure, which can constitute a bidirectional blocking device as a whole, extending its application to more power applications. It solves the problem of how to improve the structure of traditional p-GaN gate devices to increase their forward gate withstand voltage, reduce gate leakage current, and improve the device's threshold voltage.

The invention discloses a lead-containing positive electrode material and a preparation method thereof, and a positive electrode and a sodium ion battery adopting the lead-containing positive electrode material and a preparation method thereof. The lead-containing positive electrode material disclosed by the invention has the composition as shown in a formula I: NaxPbaMbOy (formula I), wherein M is a transition metal element; wherein 0.1 < = x < = 1.0, 0.05 < = a < = 0.6, 0.05 < = b < = 0.9, and 2 < = y < = 4. When the positive electrode material is used for preparing the sodium ion battery, the capacity, the cycle life and the energy density of the battery can be improved, and the performance of the battery in high-power application can be improved.

The application discloses a deep evaluation model and analysis method based on a computing power application scene, relates to the field of information technology and digital infrastructure planning, and specifically relates to a deep evaluation model and analysis method based on a computing power application scene. The model is constructed from ten dimensions of policy adaptability, regional industry integration, infrastructure support, construction operation mode, implementation strategy landing, operation and maintenance service, energy consumption control, cost return calculation, market supply and demand matching, and risk prevention and control system, taking actual landing requirements as the core. The importance of each item is graded and quantitatively scored, a feasibility determination standard is set, a full-closed-loop analysis system is formed, full-dimension and hierarchical deep analysis of the feasibility of computing power project construction and operation is realized, and support is provided for project decision-making.

The invention discloses an IGBT device for reducing electric field concentration at the bottom of a groove and a preparation method. Relates to the technical field of semiconductors. The structure with the narrow upper part and the wide lower part of the gate region ensures the effectiveness of a vertical conductive channel, reduces the resistance on a current conduction path, and further reduces the conduction voltage of the device and improves the conductive efficiency by combining the advantages of the groove structure with high unit density. The reasonable layout of the P + region and the N + region and the optimization of the electric field distribution of the gate region synergistically improve the overall electric field distribution of the device, avoid the problem of breakdown voltage drop caused by overhigh local electric field, ensure that the device has high breakdown voltage while reducing the break-over voltage, realize the consideration of low break-over loss and high voltage resistance, and improve the reliability of the device. And the harsh requirements of large and medium power application scenarios on the performance of the device are met.

The utility model relates to the technical field of power application equipment, provide a cam mechanical interlock device of pole circuit breaker, include: the isolation insulating casing, the isolation static contact, the isolation dynamic contact, the isolation contact seat, the insulating pull rod, the control box, the isolation operation main shaft, the elbow board, the connecting plate, the cam, the gyro wheel, the lever, the transmission assembly, the locking block, when the gyro wheel with the wheel surface contact of cam, the locking block just unblocks circuit breaker operation switch, when the gyro wheel with the arc groove contact, the locking block just locks circuit breaker operation switch. Advantage: the opening and closing action between the isolation static contact and the isolation dynamic contact is in the isolation insulating casing, the structure is unique and exquisite, the isolation insulating casing plays the role of the isolation sundries of outside, avoids the opening and closing action of the isolating switch to be interfered with by sundries, improves stability and security, under the condition that the closing of isolating switch is not in place or the opening is not in place, avoids the circuit breaker operation switch to be triggered mistakenly.

The application relates to the field of MOS semiconductor technology, and discloses a novel common-drain double-MOSFET device and a preparation method thereof; the cross-section profile of the gate is in an inverted "concave" shape, and an ion implantation layer is arranged through the lower part of the gate; the ion implantation layer in a single MOS cell penetrates the semiconductor epitaxial layer and divides the drain, an N substrate layer and an N diffusion layer into two parts; vertical N+ layers are arranged on the left and right sides of the ion implantation layer in the N diffusion layer. The specific ion implantation layer structure penetrating the epitaxial layer effectively divides the drain, the N substrate layer and the N diffusion layer into two parts, forms a unique common-drain double-MOS cell layout, significantly expands the current conduction path, realizes the uniform expansion of the current in the horizontal and vertical directions, greatly reduces the on-resistance of the device, improves the overall current capacity and withstand voltage capacity, and is suitable for high-power application scenarios.

The invention provides a computing network resource cooperative control method and device, a program product and electronic equipment, and the method comprises the steps: obtaining the computing power application information of a user request, the computing network resource information of a base station, the movement state data of an edge node, and the function dependence information of the user request; determining a function scheduling strategy according to the computing power application information requested by the user, the computing network resource information of the base station, the moving state data of the edge node and the function dependence information requested by the user; and issuing the function scheduling strategy to the UPF node, the base station and the edge node, so that the UPF node, the base station and the edge node execute data transmission and calculation matched with the user request based on the function scheduling strategy. According to the method and the device, resource collaborative management and control and on-demand allocation are realized through function scheduling, the computing power demand of the user service and the computing network resources can be efficiently matched in the environment of dynamic change of the computing network resources, the utilization rate of the computing network resources is further improved, and the user service quality is ensured.

The application provides a high-speed dynamic comparator structure working at low voltage, comprising a double-tail dynamic comparator, a voltage pull-down structure and a logic control circuit; a pre-amplification stage in the double-tail dynamic comparator pre-amplifies a differential input signal and then differentially outputs to a latch stage; the voltage pull-down structure outputs a signal to the pre-amplification stage; the voltage pull-down structure pulls down the signal input to the pre-amplification stage to a negative voltage at the moment when the double-tail dynamic comparator starts working by inputting a logic clock signal; the application enables the dynamic comparator to effectively work at a low power range, realizes the function of high-speed latching and does not increase the inherent deviation; the circuit structure of the application has a faster latching function, which can expand the power application range and process range of a high-speed SAR ADC, improve the IP competitiveness and increase the application environment range.

The invention discloses a self-adaptive management and control system for constructing a novel electric power system standard system, and relates to the technical field of novel electric power, and the system comprises an electric power system monitoring module, an electric power system management and control module, an electric power system self-adaptive management and control module, an early warning terminal and a database. Further analyzing to obtain the corresponding operation state of the novel power system, analyzing the result, analyzing the corresponding management and control direction of the novel power system, and when the direction is incorrect, executing the corresponding secondary management and control adjustment of the novel power system in time, so as to realize the comprehensive understanding of the novel power system under the corresponding operation. Therefore, an effective reference is provided for construction of a novel power system standard system, more accurate system construction is realized, more accurate state judgment of the operation application of the novel power system can be executed, and the safety or instability problem of the novel power application can be found and maintained in time.

An image sensor comprises a plurality of pixels. Pixels are capable of detecting a change in an amount of light intensity and pixels are capable of detecting an amount of light intensity. In a first mode the sensor outputs data from the first one or more of the pixels. In a second mode the sensor outputs data from the second one or more of the pixels. At least one of the first mode and the second mode is selected by a processor based on at least one of a result of processing data output in the first mode and a result of processing data output in the second mode.