66results about How to "Improve system efficiency" patented technology

The invention belongs to the field of oil field well site energy supply, and discloses a gravity and electrochemistry hybrid energy storage oil well micro-grid system and an energy supply method. The system comprises a clean energy power generation device, an energy storage device, a production load, a power distribution device and an energy management device. Wherein the energy storage device comprises gravity energy storage equipment and electrochemical energy storage equipment, and the gravity energy storage equipment is formed by transforming an idle well in a well site. According to the system, the super-generating capacity of wind and light power generation is converted into potential energy to be stored in the gravity energy storage equipment, the gravity energy storage equipment can serve as a long-time energy storage device, when wind and light output is insufficient and the electrochemical energy storage equipment is insufficient in energy supply, the potential energy of the gravity energy storage equipment can be converted into electric energy to supply power to a load, and the energy utilization rate is increased; and the energy supply stability of the system is enhanced. In addition, the gravity energy storage device is formed by transforming an idle well in a well site, and is economical and environmentally friendly.

Embodiments of the present disclosure disclose a method and device for scheduling vehicle charging. The specific implementation of the method comprises: in response to detecting that the number of idle vehicles is greater than a predetermined number, obtaining the current power and average task interval time of each idle vehicle; calculating the non-charging cost of each idle vehicle based on the current power of each idle vehicle; calculating the charging cost of each idle vehicle based on the current power and average task interval time of each idle vehicle; calculating the total cost of each idle vehicle based on the non-charging cost and charging cost of each idle vehicle; and sending a charging instruction to the predetermined number of idle vehicles with the highest total cost. This implementation considers the number of tasks and power to determine the priority of idle vehicles, thereby reducing the charging time of vehicles and improving system efficiency without interfering with business.

The utility model discloses a kind of heat management system and air conditioner, it is related to air conditioner technical field, wherein, heat management system includes integrated valve island, heat exchanger assembly and temperature sensing module;Integrated valve island includes valve island ontology and first throttling device, multiple flow passages are equipped in the valve island ontology, and the first throttling device is integrated on the flow passage;Heat exchanger assembly includes plate heat exchanger, and the plate heat exchanger is equipped with the first refrigerant inlet and outlet and first refrigerant inlet communicating the flow passage;Temperature sensing module is at least partially placed in the flow passage, to carry out temperature detection to the refrigerant flowing through the temperature sensing module;The technical scheme provided by the utility model can realize accurate temperature measurement.

The application discloses a kind of robot dexterous operation systems, methods, equipment and media for transparent object, belong to robot dexterous operation and three-dimensional perception field, system includes: point cloud data construction module, can be constructed and noisy to obtain noisy hand-object interaction point cloud by physical simulation;Point cloud feature extraction module can extract high-dimensional latent features from noisy hand-object interaction point cloud;Query prediction module can infer object shape and pose by query point generation and decoder decoding;Perception coding module can extract features from global point cloud, hand-object interaction point cloud and tactile information to obtain multi-source perception features;Multi-modal feature fusion module can realize feature integration through self-attention mechanism and cross-attention mechanism calculation, and output fusion features;Action generation strategy module can generate differentiated action instructions for robot arm and dexterous hand based on fusion features.The system can achieve higher adaptability and stronger generalization capability in transparent object operation task.

This invention discloses a design method for parallel current sharing of BOOST multiphase interleaved silicon carbide single transistors. It identifies key parasitic parameters by building a dual-pulse simulation platform, completes device layout in conjunction with the overall system structure, uses PCB symmetry and copper layer stacking to control parasitic parameter consistency, and forms a design closed loop through dual-pulse and steady-state thermal testing. This effectively solves the problem of poor current sharing in parallel silicon carbide single transistors. Furthermore, this method ensures balanced current distribution during switching transients and conduction steady states, eliminates current sharing failures caused by parasitic parameter mismatch, fully utilizes the performance of silicon carbide single transistors without requiring amplification device margins, flexibly adapts to the overall system layout, improves space utilization, optimizes system efficiency, reduces design costs and redundancy, and achieves a reliable, efficient, and highly adaptable design for parallel current sharing of BOOST multiphase interleaved silicon carbide single transistors.

This application discloses a teach-free weld seam positioning method, apparatus, equipment, storage medium, and program product for industrial robots, relating to the field of automation technology. The teach-free weld seam positioning method for industrial robots includes: scanning a preset welding trajectory using a line laser to obtain the line laser scanning trajectory of the preset welding trajectory in the line laser tool coordinate system; transforming the line laser scanning trajectory to determine the tool center point pose of the welding torch end-effector trajectory in the welding torch end-effector coordinate system; and determining the welding point pose of the welding torch based on the tool center point pose. Since the line laser scanning trajectory obtained by scanning the preset welding trajectory using a line laser emitter is recorded, the actual welding torch end-effector trajectory is simulated; by converting the line laser scanning trajectory into the welding torch end-effector tool center point in the welding torch end-effector coordinate system, resource consumption caused by frequent coordinate transformations during welding is avoided, improving system efficiency and stability.

This invention relates to a bipolar self-equalizing DC-DC converter based on magnetic integration and a soft-switching optimization method. It includes two full-bridge circuits, a four-winding transformer, and a voltage-balanced coupling inductor. The first full-bridge circuit outputs two voltages, which are respectively input to the first and second primary windings of the four-winding transformer. One end of the first and second secondary windings of the four-winding transformer is connected to the midpoints of the first and second arms of the second full-bridge circuit, respectively. The other ends of the first and second secondary windings of the four-winding transformer are connected to one end of the primary and secondary windings of the voltage-balanced coupling inductor, respectively. The other ends of the primary and secondary windings of the voltage-balanced coupling inductor are also connected to one end of a first load and one end of a second load. This invention enables all power semiconductor devices to achieve zero-voltage switching characteristics.

The invention discloses an audio and video code rate adjusting method and device, a program product and electronic equipment, and relates to the field of financial science and technology or other related fields, and the code rate adjusting method comprises the steps: collecting performance data and network data of target equipment, obtaining audio and video original stream data, and transmitting the audio and video original stream data to a server; the method comprises the steps of constructing multi-modal data based on performance data, network data and audio and video original stream data, determining a reference code rate based on the multi-modal data, determining target encoder parameters of a target encoder based on the reference code rate and the multi-modal data, and determining the target encoder parameters of the target encoder based on the target encoder parameters. And performing code rate adjustment on the audio and video original stream data by using the target encoder to obtain target audio and video stream data. According to the invention, the technical problem that the code rate of audio and video cannot be accurately adjusted in the prior art is solved.

This application provides a power distribution method and apparatus for a fuel cell hybrid power system. At the start time of the i-th maintenance duration, the i-th initial target power of the fuel cell is obtained. The i-th initial target power is determined based on the vehicle's total power demand before the start time and the first charge state of the high-voltage battery before the start time. If the absolute value of the difference between the i-th initial target power and the historical target power within the (i-1)-th maintenance duration is greater than or equal to the power step size, then the i-th actual target power of the fuel cell is determined based on the historical target power within the (i-1)-th maintenance duration and the power step size. If the absolute value of the difference between the i-th initial target power and the historical target power within the (i-1)-th maintenance duration is less than the power step size, the historical target power within the (i-1)-th maintenance duration is determined as the i-th actual target power of the fuel cell. Controlling the stepwise change of the actual target power can match the power consumption response rate of the fuel cell.

The utility model discloses a controller of a heavy truck electric automobile. The controller comprises a control shell, the control shell is provided with a first containing cavity with an opening in the top, and a wire holder is installed at one end in the first containing cavity. A thin-film capacitor is mounted on one side in the first accommodating cavity, and an input positive terminal and an input negative terminal are mounted on the thin-film capacitor; six upper-layer output terminal assemblies are mounted at intervals in the length direction of the upper part of one side of the thin-film capacitor, and three lower-layer output terminal assemblies are mounted at intervals in the length direction of the lower part of one side of the thin-film capacitor. According to the utility model, the three-dimensional laminated layout of the thin-film capacitors and the IGBT modules is adopted, the U-phase and W-phase modules are arranged on the upper layer, the V-phase modules are arranged on the lower layer, and the water-cooling plate is adopted in the middle, so that the double-sided IGBT can be cooled, the bus connection length can be shortened, the system loss can be reduced, and the system efficiency can be improved.

This invention provides a drive control circuit and its operating method, a drive control chip, and a step-down system. The drive control circuit includes: a feedback compensation module for generating a compensation voltage based on a received feedback voltage; a voltage regulation module connected to the feedback compensation module for generating a sawtooth wave voltage through capacitor charging and discharging, and setting a constant discharge current when the compensation voltage is greater than or equal to a preset voltage, and reducing the discharge current based on the compensation voltage when the compensation voltage is less than the preset voltage; and a switch drive module connected to the feedback compensation module and the voltage regulation module for generating a first drive signal based on a comparison between the sawtooth wave voltage and the compensation voltage when the compensation voltage is greater than or equal to the preset voltage, and generating the first drive signal based on a comparison between the sawtooth wave voltage and the preset voltage when the compensation voltage is less than the preset voltage. This invention solves the problem of excessively large output ripple in existing technologies.

The utility model belongs to the technical field of thermal power equipment, and relates to a high-efficiency combined preheater system of a thermal power plant boiler, which comprises a tubular air preheater arranged at the tail part of the boiler and used for heating primary air and a rotary air preheater used for heating secondary air, flue gas inlets of the tubular air preheater and the rotary air preheater are connected with a flue outlet of the denitration system, flue gas outlets of the tubular air preheater and the rotary air preheater are connected with the dust remover, and a water supply heat exchanger is further arranged between the flue gas inlet of the tubular air preheater and the flue outlet of the denitration system. The rotary preheater can further improve the operation efficiency of a coal power plant, solves the problems of high air leakage, loss and catalyst blockage of a traditional rotary preheater, has the advantages of energy conservation, economy and reliability, and meets the technical requirements of efficient and clean operation of a thermal power plant.

The application discloses a bidirectional charge-discharge energy recovery system, a control method and a power utilization system, and relates to the technical field of electric energy recovery. The application comprises an energy storage assembly, a detection circuit, a bidirectional switch circuit and a control circuit. The application replaces the traditional bidirectional DC / DC converter with the bidirectional switch circuit composed of simple switch devices, realizes the bidirectional independent controllability of charging and discharging, simplifies the system complexity and reduces the system cost. Specifically, the low-loss characteristics of the switch device in the conduction state are utilized to construct an efficient energy path, so as to eliminate the inherent energy loss caused by the DC / DC conversion link on the hardware, and improve the system efficiency. Meanwhile, the topology structure greatly reduces the number of inductors, capacitors and other power elements, reduces the system cost and volume, and replaces the complex PWM modulation and closed-loop algorithm through the logical on-off control of the switch device, so as to realize the independent management of the charge-discharge path and the simplification of the system control.

The application provides a wide-temperature-range cascade multifunctional industrial heat pump system and an operation control method, relates to the technical field of heat pump product design and operation control, and aims to improve the working condition adaptability and energy on-demand distribution flexibility of the industrial heat pump under cold and heat demand in different production stages.

The invention relates to a method for operating an air system (1), comprising:-at least one air supply path (2) for supplying air to at least one fuel cell stack (3); and-at least one exhaust gas path (4) for discharging the exhaust gas flowing out of the fuel cell stack (3), air fed to the at least one fuel cell stack (3) being wetted by means of the exhaust gas of the same fuel cell stack (2) or a further fuel cell stack (2), and wherein liquid water (5) contained in the exhaust gas is previously separated by means of a water separator (6). The invention further relates to an air system (1) and to a fuel cell system having an air system (1) according to the invention.

This invention discloses a collaborative scheduling method between an edge-side embodied cerebellum and a cloud-based brain based on task characteristics. The method includes: acquiring task characteristic information of a task to be executed, wherein the task characteristic information includes at least the task's real-time requirements, computational complexity, and accuracy requirements; combining the action execution capability and execution latency threshold of the edge-side embodied cerebellum to generate a task scheduling decision, allocating the task to either the edge-side embodied cerebellum or the cloud-based brain for execution; the edge-side embodied cerebellum collecting task execution status information during task execution and sending the task execution status information to the cloud-based brain; and the cloud-based brain updating the scheduling strategy for subsequent tasks based on the task execution status information, thereby achieving closed-loop collaborative scheduling between the edge and the cloud. This invention can dynamically adjust the task execution position according to task characteristics, improve task execution efficiency, reduce overall system latency, and is suitable for collaborative scheduling applications in multiple tasks and scenarios.

This invention relates to a lock-free I / O scheduling method, apparatus, and storage medium for cloud PCs. Responding to a client session request initiated by a client, the method controls a metadata coordinator to allocate storage nodes to the client and, within those storage nodes, allocates I / O shards for the client, obtaining allocation information. The metadata coordinator then returns the allocation information to the client, and the client caches this allocation information to facilitate the use of the allocation information to fulfill I / O requests. Each I / O shard includes an I / O thread bound to a first CPU core, a data plane development toolset driver, a storage performance development toolset driver, a first lock-free circular buffer, and a second lock-free circular buffer. By binding the CPU core and using lock-free circular buffers, thread switching, lock contention, and most memory copying are eliminated, reducing I / O processing latency from milliseconds to hundreds of microseconds and significantly reducing latency jitter.

This invention discloses an adaptive zero-current turn-off synchronous rectification control circuit, comprising: an OFF dead-time module, a counting module, and an adjustable reference voltage module connected sequentially; the OFF dead-time module is used to continue detecting the drain-source voltage of the switching transistor component after it is turned off, and outputs a level signal by comparing the drain-source voltage with a reference voltage threshold and the OFF dead-time with a reference time threshold; the counting module is used to detect the output level signal when the trigger delay signal of the drain-source voltage is at its rising edge; if the output level signal is low, the output result is decremented; if the output level signal is high, the output result is incremented; the adjustable reference voltage module is used to adjust the bias current according to the output result of the counting module, thereby gradually adjusting the reference voltage threshold. This solution enables the switching transistor component to turn off when the current truly crosses zero, reducing system losses and improving system efficiency.

The invention discloses a broadband radar signal reconnaissance and parameter estimation system and method and a storage medium. The system comprises a frequency spectrum reconnaissance module used for performing Fourier transform on reconnaissance channel input data and detecting a first carrier frequency and a bandwidth of a signal in a frequency domain; the signal processing module is used for carrying out self-adaptive frequency conversion and filtering on the input data according to the parameters; the pulse detection module is used for performing pulse detection on the filtering signal and finely estimating a second or third set of carrier frequency and bandwidth parameters of the frequency modulation or phase modulation type signal; the direction-finding data FFT module is used for performing FFT conversion on the lateral channel data to extract phase information; and the packaging module is used for packaging the pulse detection result and the phase information into pulse description words and outputting the pulse description words. According to the invention, the integrated processing of the broadband radar signal from rapid reconnaissance, precise processing, modulation identification to direction finding information fusion is realized, and the real-time processing capability of the system, the throughput of the broadband signal and the parameter estimation precision are obviously improved.

The invention provides an optical storage direct flexible system multi-target capacity optimization method considering economy and carbon emission, and the method comprises the steps: completing the building of mathematical models of a photovoltaic power generation model and an energy storage battery model, and completing the building of a load model through a probability model according to park data; the method comprises the following steps: acquiring typical annual hourly solar irradiance and environment temperature of a target site optical storage direct-flexible system, hourly electrical load data of a building or a park and a charge state of an energy storage battery, and calculating power output of photovoltaic equipment through data of the photovoltaic equipment; and determining constraint conditions of the system, carrying out iterative operation on the optical storage and charging system based on a load tracking management strategy and by adopting an intensity Pareto algorithm so as to obtain a capacity configuration result with optimal comprehensive performance of the optical storage and charging system, and drawing various power curves of a typical day of the system. According to the method, a multi-target capacity configuration method of economy and carbon emission can be optimized cooperatively, and economic and low-carbon coordinated development of the optical storage direct-flexible system is realized.

The utility model discloses a three-level topological filtering compensation device, which relates to the technical field of filtering compensation and comprises a controller and a three-level topological filtering compensation circuit. The three-level topology filtering compensation circuit comprises a direct current side equalization circuit, a three-level topology first circuit, a three-level topology second circuit and an alternating current side filtering circuit. The direct current side equalization circuit comprises capacitors C1 and C2 which are connected in series, and the capacitors C1 and C2 are respectively connected with a first bidirectional switch tube and a second bidirectional switch tube in parallel; a series circuit formed by the capacitor C1 and the capacitor C2 is respectively connected in parallel with the three-level topology first circuit and the three-level topology second circuit; the controller is connected with the first bidirectional switch tube and the second bidirectional switch tube. According to the invention, the DC side equalization circuit is designed, and the two capacitors are respectively connected in parallel with the bidirectional switch tubes, so that the system efficiency is improved, and load fluctuation can be adapted.

The application provides a battery module and a control method thereof, an energy storage system and an addressing method thereof. The battery module comprises a cell unit, a power conversion circuit and a master control unit. The power conversion circuit comprises a plurality of bidirectional buck-boost topologies connected in parallel between a connection end of the cell unit and a first external port, and a control unit connected with each bidirectional buck-boost topology; wherein the control unit is used for outputting a plurality of pulse width modulation signals to control the plurality of bidirectional buck-boost topologies to work synchronously; and the master control unit adjusts the duty cycle of the pulse width modulation signals output by the control unit to adjust a first nominal voltage output by the cell unit to a target discharge voltage, or to adjust a charging voltage input by the power conversion module to the first nominal voltage to charge the cell unit, thereby improving the charge-discharge consistency of the battery module and further improving the parallel circulating current problem of the multi-battery module.

An intent negotiation method and apparatus are provided. The method includes: A first network element sends a first sub-intent of a first intent to a second network element, and sends a second sub-intent of the first intent and indication information to the second network element, where the indication information is used to indicate that the first sub-intent and the second sub-intent have a same action and a same object. The foregoing method may be used to resolve a problem that an existing intent negotiation solution causes a large waste of resources on an L-IDN side.

The application discloses a GaN HEMT device integrated with a reverse conduction function and a preparation method thereof, and belongs to the technical field of semiconductor devices. The device comprises a substrate and a buffer layer, a first channel layer, a first barrier layer, an isolation layer, a second channel layer, a second barrier layer and a p-GaN layer which are sequentially stacked; wherein a first recess is formed in the second barrier layer and penetrates to the first channel layer, the bottom of the recess is provided with an anode which forms a Schottky contact with the first channel layer, and a source electrode covers the anode and the first recess; a second recess is formed and penetrates to the first barrier layer, and a cathode which forms an ohmic contact with the first barrier layer is arranged in the recess. The application integrates an independent reverse conduction diode channel in the GaN HEMT device by constructing a double heterojunction structure and a specific recess electrode design, realizes single-chip integration of forward switching and reverse current flow, effectively reduces a reverse conduction voltage drop, eliminates parasitic parameters of an externally-mounted diode, and significantly improves the power density and reliability of a system.

The invention discloses a vehicle controller upgrading optimization method and system, a vehicle and equipment. The upgrading optimization method for the vehicle controller comprises the following steps: after an upgrading request of a target controller is received, controlling a vehicle to enter a diagnosis upgrading state; receiving a function addressing instruction sent by the TBOX or the local diagnostic instrument, and determining a first domain controller according to the function addressing instruction; in the upgrading process, the central domain controller is forbidden to send a communication control service, and diagnosis fault recording functions of the first domain controller and a subordinate controller of the first domain controller are closed; and judging whether the upgrading process affects the function execution of the target controller or not, and if yes, forbidding the second domain controller to carry out diagnosis fault recording on the function. By adopting the method and the device, in the upgrading process, the fault recording diagnosis function of the controllers in the same region is closed, and the functions of the controllers in other regions are allowed to work normally when the functions of the controllers work abnormally, so that fault misinformation can be avoided, meanwhile, function interruption is prevented, and the system efficiency is improved.

The utility model relates to a simple two-way current sharing circuit, which comprises a first power supply module, a second power supply module and a shared feedback module, and is characterized in that the power supply output end of the first power supply module and the power supply output end of the second power supply module are combined into a power supply node; the power supply node is connected with a power supply signal input end of the sharing feedback module, a first feedback signal output end of the sharing feedback module is connected with a feedback signal input end of the first power supply module, and a second feedback signal output end of the sharing feedback module is connected with a feedback signal input end of the second power supply module. The sharing feedback module is used for generating a first feedback signal and a second feedback signal, and the precision deviation of the first feedback signal and the second feedback signal is kept in the same numerical range, so that the voltage difference between the power supply modules is effectively reduced, the purpose of current sharing is achieved, and the stability and reliability of the power supply system are improved.

The application provides a kind of driving circuit, system and control method of power semiconductor, it is related to electronic circuit technical field, including: positive power supply end provides positive driving voltage to the gate of power semiconductor device;First and second positive power supply module respectively output driving positive voltage, and the driving positive voltage that second positive power supply module outputs is higher;Switching module controls the on-off of second positive power supply module and positive power supply end;Negative power supply end provides off negative voltage;Control module controls switching module to keep open in the power semiconductor device opening transient process, controls switching module to close after power semiconductor device enters conduction steady state, controls switching module to restore open before the off transient process of power semiconductor device starts.This application realizes the accurate control of conduction loss by the cooperative control of double positive power supply module and switching module, reduces the conduction loss, improves system efficiency, enhances device operation reliability.

The invention relates to a handheld aesthesiometer, comprising a gas lung connected with intermediation from first valve means to a source of gas and comprising an expandable cavity intended to house a volume of gas in a loading phase of the aesthesiometer; an outlet nozzle connected to the gas lung with intermediation from second valve means and suitable for directing a puff of the volume of the gas housed in the gas lung in a firing phase of the aesthesiometer; and a mechanism to ensure in the aforementioned firing phase of the aesthesiometer the release of the puff of the volume of gas contained in the gas lung in the direction of the outlet nozzle by means of a controlled contraction of the expandable cavity of the gas lung in order to ensure a substantially constant outlet pressure.

The present application relates to the technical field of light storage hybrid power generation control, and particularly to a multi-port light storage hybrid power generation modulation method and system based on current ripple suppression. The method comprises obtaining grid-side voltage and current data; determining a space vector sector according to a reference voltage vector of the grid-side voltage and current data; constructing a clamping sequence based on a reference sector of the space vector sector; establishing a current ripple model according to the clamping sequence and selecting a minimum ripple clamping sequence; deriving a double modulation wave of the minimum ripple clamping sequence based on a volt-second balance; and performing carrier comparison and driving output based on the double modulation wave. The present application systematically gives all clamping switch sequences and determines the influence type of the clamping switch sequences on system power, so that dynamic power regulation among photovoltaic units, energy storage units and loads of a multi-port light storage hybrid power generation system can be realized on the basis of reducing switch loss and improving system efficiency.

The embodiment of the application discloses a control method, device, vehicle and computer readable storage medium, the method comprises: in the case where the motor speed of the vehicle is greater than the speed threshold value, determining the current operation condition based on the current operation parameter of the vehicle, the current operation parameter comprises: at least one of motor torque, motor speed, load current, motor power; determining the target voltage utilization rate corresponding to the current operation condition, different operation conditions correspond to different voltage utilization rates, and the difference between the upper limit value of the voltage utilization rate and the minimum voltage utilization rate in the different voltage utilization rates is less than or equal to the first difference threshold value; control the inverter of the vehicle based on the target voltage utilization rate. In this way, the system efficiency of the vehicle can be improved.