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22results about How to "Stable response" patented technology
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Active inertia supporting method, device and equipment for energy-storage-free photovoltaic grid-connected system
PendingCN121791334AExpand the boundaries of stable operationStable responseSingle network parallel feeding arrangementsArtificial life
The invention provides an active inertia supporting method, device and equipment for an energy-storage-free photovoltaic grid-connected system, and relates to the technical field of new energy grid-connected power generation and intelligent control. The method comprises the following steps: constructing a direct current-alternating current double-side dynamic model of the energy-storage-free photovoltaic grid-connected system; constructing a total objective function according to the direct current-alternating current double-side dynamic model; the total objective function comprises a plurality of objective functions and penalty functions; taking the power reservation coefficient and the virtual rotational inertia as individuals, and taking a plurality of target functions as a multi-target task cooperation whale optimization algorithm to obtain a Pareto front; respectively inputting individuals in the Pareto frontier into the total objective function to determine an optimal individual; and dynamically introducing the optimal individual into a control module of the grid-forming type virtual synchronous generator through a smooth transition function, so that the energy-storage-free photovoltaic grid-connected system operates in an optimal state. According to the invention, voltage and frequency fluctuation can be effectively suppressed, system stability and photovoltaic utilization rate are both considered, and operation cost is reduced.
Owner:STATE GRID HEBEI ELECTRIC POWER RES INST +1
Machine learning based hierarchical system energy consumption prediction method and system
ActiveCN121052443Bconsensus predictionconsistent accountingForecastingBiological modelsLearning basedProduction line
The application discloses a hierarchical system energy consumption prediction method and system based on machine learning, and particularly relates to the field of processing energy consumption prediction, and is used for solving the problem of powder processing production line grading energy consumption prediction deviation, and is through constructing a multi-source time sequence account book to draw the context from drying to grading into a traceable line, to make the origin and destination of energy consumption fluctuation clear, and to combine prediction to no longer stop at static experience, but to follow the propagation path and screen surface work to depict the real load, to obtain the energy consumption impact degree through the penetration time difference density and the accumulated release work amount, and the operation side to generate the cost impact label and the time slot priority according to the energy consumption impact degree, the order energy consumption layering close to the field rhythm, the prediction and accounting more consistent, the online checking to revise the alignment deviation with small steps, the short-time fluctuation convergence, the long-period cost curve tends to be smooth, and at the same time, the clear evidence chain is retained, and the review is based on evidence, and under the alternation of batches and beats, the stable response is still maintained, and the settlement deviation caused by misjudgment is reduced.
Owner:SHANGHAI CHENYANG NEW MATERIAL CO LTD
A key switch circuit based on bistable circuit and printer
The utility model discloses a kind of key switch machine circuit and printer based on bistable circuit, wherein, key switch machine circuit based on bistable circuit, including power supply conversion unit, self-locking circuit and button, bistable circuit;The enable end of power supply conversion unit is connected by self-locking circuit and button, bistable circuit;Power supply conversion unit is used to convert input power supply into working power supply, and its enable control end is used to control power output;Self-locking circuit is used to pull low the enable end of power supply conversion unit after button is pressed and maintain low level, realize the self-locking of power output;Bistable circuit is used to change output state when button is pressed again, cut off self-locking circuit, so that the enable end of power supply conversion unit restores high level, to close power output.The utility model discloses the key switch machine circuit based on bistable circuit of the utility model, using single self-resetting button can complete the opening and closing of power supply, and, circuit response is stable, operation logic is clear.
Owner:XIAMEN CASHINO ELECTRONICS TECH CO LTD
Deepwater structure health monitoring method and system
ActiveCN121954133ASolve problems prone to pathological instabilityStable full-field reconstructionMeasurement devicesStructure health monitoringData acquisition
The invention discloses a deepwater structure health monitoring method and system. The method comprises the following steps: establishing a discrete model and constructing a unit strain matrix; collecting single-side surface strain data and establishing a mapping relation between single-side surface theoretical strain and node displacement; constructing a unilateral inverse finite element data fitting item comprising a surface strain fitting item and a lateral shear strain penalty item; constructing a geometric guidance hybrid regularization term consisting of a membrane regularization term and a bending regularization term; assembling a global equation to solve full-field displacement; and recovering full-field strain and stress and outputting a monitoring result. The system comprises a data acquisition module, a preprocessing and inverse reconstruction module, a stabilization solving module and a visual output module. According to the full-field response sensing scheme based on unilateral inverse finite element and geometric guidance mixed regularization, stable and high-precision inversion of full-field displacement, strain and stress of the structure can be realized under the condition of only depending on unilateral sparse sensing data, and the dependence of a traditional method on bilateral sensing arrangement is effectively broken through.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL
A MIL-100(Fe)-derived ErFeO3 / α-Fe2O3 gas-sensitive material, its preparation method and application
This invention relates to a MIL-100(Fe)-derived ErFeO3 / α-Fe2O3 gas-sensitive material, its preparation method, and its application, belonging to the field of gas sensor and environmental monitoring technology. A method for preparing a MIL-100(Fe)-derived ErFeO3 / α-Fe2O3 gas-sensitive material involves: slowly adding FeCl3 solution dropwise to H3BTC solution at room temperature; after uniform mixing, maintaining the mixture at 150℃~210℃ for 20 hours in a reaction vessel to obtain an orange-red substance; washing and drying to obtain MIL-100(Fe); dispersing the obtained MIL-100(Fe) in methanol; dissolving Er(NO3)3·6H2O in the above solution and reacting for a period of time; washing, centrifuging, and drying; transferring the obtained product to a muffle furnace and calcining under an oxygen atmosphere to obtain the ErFeO3 / α-Fe2O3 gas-sensitive material. The method for preparing porous metal oxide-based gas-sensitive materials using MOF materials as precursors and rare earth element modification proposed in this invention has advantages such as versatility, controllability, and recyclability compared to traditional methods for preparing metal oxide-based gas-sensitive materials.
Owner:SHENZHEN AIDUOKE SENSOR TECH CO LTD +1
Battery pack display soc control method and device, medium and battery management system
This application discloses a battery pack display SOC control method, device, storage medium, and battery management system. The method includes: acquiring the current SOC to be displayed, the previous displayed SOC, and the current charge / discharge end calibration voltage; determining the current mapping rate based on the upper limit of SOC corresponding to the current charge end calibration voltage and the lower limit of SOC corresponding to the current discharge end calibration voltage; and mapping the current SOC to be displayed to the final displayed SOC using a preset charge / discharge mapping method based on the battery's charge / discharge state, the previous displayed SOC, and the current mapping rate. This application determines the mapping rate based on the upper and lower limits of SOC during charge / discharge, and combines this with an incremental accumulation algorithm to map the SOC to be displayed, enabling the SOC to be intelligently, smoothly, and user-orientedly mapped to the displayed value.
Owner:BESCORE NEW ENERGY TECH (QINGDAO) CO LTD
A scalable distributed multileaf chamber open-path photosynthesis measurement system and method
PendingCN122084829Aachieve precisionAchieve high-throughput unificationMaterial analysisGas analysisOpen path
This invention discloses a scalable distributed multi-chamber open-path photosynthetic measurement system and method, relating to the field of plant physiological and ecological measurement technology. The system includes a main unit and at least two distributed chambers. The main unit centrally manages gas supply, concentration mixing, flow control, and high-precision concentration differential analysis. Each chamber is an independent unit, equipped with an adjustable LED light source, thermoelectric temperature control module, multiple types of sensors, independent power supply, and wireless communication module. An open path is formed through the gas supply pipeline and the return pipeline. The core of the method lies in the main unit polling and sampling the return gas from each chamber according to a preset program through a multi-channel automatic switching valve group. Combined with a "flushing stabilization" strategy, a single gas analysis unit is used to achieve high-precision, high-throughput parallel measurement of multiple chambers. This invention solves the problems of low throughput and high cost of traditional open-path instruments, achieving a balance between high precision and high throughput, and supports in-situ deployment in the field and remote monitoring.
Owner:YANGZHOU UNIV
Virtual synchronous machine comprehensive control method based on optimal power compensation and inertia damping self-adaption
PendingCN121984112Asuppress overshootOscillation suppressionSingle network parallel feeding arrangementsMathematical modelDiscretization
The invention discloses a virtual synchronous machine comprehensive control method based on optimal power compensation and inertia damping self-adaption, and belongs to the technical field of virtual synchronous machine control in a micro-grid. The method comprises the following steps: firstly, establishing a mathematical model of a virtual synchronous machine (VSG), analyzing the influence of parameters such as virtual inertia and virtual damping on system stability, and realizing online adaptive adjustment of virtual parameters based on a radial basis function neural network (RBF); and then, constructing a discretization prediction model according to an active-frequency relation of the VSG, setting an optimization target based on angular frequency deviation and output active power, designing a corresponding cost function, and solving an optimal power compensation amount through quadratic programming so as to adjust an active reference value of the VSG in real time. Compared with the prior art, overshoot and oscillation of power and frequency can be effectively restrained, the frequency change rate and deviation are reduced, and the power frequency response speed is increased.
Owner:XINJIANG UNIVERSITY
Vehicle-mounted toll terminal with local AI computing power and voice interaction and implementation method
The application discloses a vehicle-mounted charging terminal with local AI computing power and voice interaction function and an implementation method, the vehicle-mounted charging terminal comprising a hardware module and an AI voice interaction module in communication connection; the hardware module comprises a main control and storage unit, a local AI computing power unit, a multi-modal microphone array, a voice output unit and a transaction function unit; the AI voice interaction module comprises a voice wake-up unit, a local AI voice engine, an AI computing power scheduling unit and a function linkage unit. The application constructs a local AI computing power architecture, breaks away from dependence on the cloud, realizes millisecond-level processing of voice instructions and provides excellent user experience.
Owner:TIANJIN RUITONG INTELLIGENT TECH CO LTD
Spring operating mechanism and method for circuit breaker
PendingCN122267019AImprove rigidityImprove movement stabilityContact driving mechanismsSwitch power arrangementsElectric machineControl engineering
The application discloses a spring operating mechanism and method for a circuit breaker, and belongs to the technical field of circuit breakers, which comprises a clamp plate type frame, an energy storage to position clutch, a closing holding and a manual closing soft interlocking device, the clamp plate type frame is fixedly connected by opposite first and second side plates through a supporting piece; an energy storage motor of an energy storage transmission device is connected with an energy storage shaft through a transmission assembly, a cam is arranged on the shaft, and an energy storage holding buckle is arranged; the energy storage to position clutch device is a one-way clutch assembly connecting the transmission assembly and the energy storage shaft; the closing holding device comprises a hinged opening release assembly, a reset elastic piece and a linked output shaft; the manual closing soft interlocking device comprises a sliding manual operating assembly, a closing trigger piece and an interlocking assembly, and is matched with the energy storage holding buckle; the problems of the existing spring operating mechanism for the circuit breaker, such as the reliability, structure, cost or precision related defects of the energy storage clutch device, the manual closing mechanical interlocking, the closing holding structure and the modular mechanism cooperation are solved.
Owner:XIAN HERO SWITCHGEAR CO LTD
Interconnected power grid mutual protection and mutual aid scheduling method based on credit difference pricing and PTDF constraint
PendingCN121984106AImprove power supply reliabilityImprove toughnessAc network load balancingInformation technology support systemDecision modelElectric power system
The invention relates to the technical field of power systems, and discloses an interconnected power grid mutual protection and mutual aid scheduling method based on credit difference pricing and PTDF constraint, and the method comprises the steps: constructing a region coordination optimization model and a main body response optimization model; the regional coordination optimization model is used as an upper layer decision-making model, and takes multi-target comprehensive optimization of settlement expenditure, safety out-of-limit, load lack supply and electricity abandoning punishment as a target; the main body response optimization model is a lower-layer execution unit, and after each power transmission side main body receives a power transmission instruction of the upper-layer decision model, output optimization is carried out on the premise of meeting unit operation constraints by taking internal power generation cost minimization as a target; and solving the regional coordination optimization model and the subject response optimization model to obtain a scheduling scheme. The method has the advantages that the power supply reliability, the safety toughness and the resource allocation efficiency of the interconnected power grid are remarkably improved on the premise that the system operation cost is increased in a limited mode, and collaborative optimization of economy, safety and credit value is achieved.
Owner:GUO JIA DIAN WANG YOU XIAN GONG SI XI NAN FEN BU
Modal controller generation method, medium, and apparatus for a nanopositioning platform
PendingCN122593100AEnsure it is implementablereliable design
The present application relates to the technical field of ultra-precision machining control, and particularly relates to a modal controller generation method for a nano-positioning platform, a medium and equipment. The present application performs zero-pole decomposition on a transfer function of a controlled object, separates stable zero points, unstable zero points, non-resonant poles and resonant poles, constructs a desired inner loop closed-loop transfer function, retains the stable zero points, the unstable zero points and the non-resonant poles, and replaces the resonant poles as a whole with high-damping desired poles, inversely solves to obtain a modal controller structure, introduces zero-pole cancellation constraints to eliminate controller instability caused by unstable zero points, introduces order constraints to ensure causal realizability, applies constraints with a damping ratio greater than 0.1 to the desired poles and the introduced new zero points respectively, and outputs an inner loop modal controller. The present application realizes simultaneous suppression of multiple resonant peaks, gets rid of dependence on a low-order model, ensures stability, realizability and smoothness of a control signal of the controller, and significantly improves control bandwidth and dynamic performance.
Owner:SHANGHAI JIAOTONG UNIV
An autonomous navigation method and system for a patrol robot in a GPS-free environment
PendingCN122281903AEliminate interpretation errorsEliminate control command disorderPattern recognitionReal-time data
This invention discloses an autonomous navigation method and system for inspection robots in GPS-free environments, relating to the field of robot autonomous navigation technology. The invention includes: receiving pre-collected scene visual data in a GPS-free environment; processing and analyzing the scene visual data using a V-SLAM algorithm to obtain real-time pose data of the inspection robot in the visual sensor coordinate system, providing a real-time data source for subsequent coordinate transformation; wherein the scene visual data is a sequence of binocular images collected by a visual tracking camera mounted on the inspection robot; and constructing a coordinate transformation matrix to convert the pose data in the visual sensor coordinate system obtained by the V-SLAM algorithm into pose information in the vehicle control coordinate system. This invention improves trajectory estimation accuracy through a V-SLAM method integrating visual-driven filtering, ultimately achieving high-precision, high-reliability autonomous navigation of the inspection robot in complex GPS-free environments, free from GPS dependence.
Owner:SOUTHEAST UNIV
Platinum nanoparticle antifouling oxidation reduction metal electrode based on MOF material modification and preparation method and application thereof
PendingCN122016969Asmall particle sizeLarge specific surface areaMaterial electrochemical variablesNanoparticleRedox
The invention provides a platinum nanoparticle antifouling oxidation reduction metal electrode based on MOF material modification and a preparation method and application thereof, and belongs to the technical field of marine pollution detection. The preparation method comprises the following steps: carrying out electrodeposition on a platinum-based electrode by using K2PtCl4 and CTAB to form a platinum nanoparticle substrate, then mixing BDC-F4 and ZrO (NO3) 22H2O by using a hydrothermal reaction to form a UiO-66-F4 MOF material, and finally putting the electrode into a solution to obtain Pt NPs at UiO-66-F4. The prepared electrode can inhibit adhesion of organic macromolecules in seawater, and has excellent stability.
Owner:ZHEJIANG UNIV
Intelligent control power light lithium battery pruning machine
ActiveCN224368476USimple structurereduce friction lossCutting implementsCuttersElectric machineGear wheel
This utility model provides an intelligent force-controlled lightweight lithium-ion battery pruning machine. The machine includes a cutting blade and comprises a motor housing, a gear reduction mechanism, and an eccentric wheel. The motor housing has a motor output end. The gear reduction mechanism is connected to the motor output end and includes a rotating shaft. The eccentric wheel is fixed on the rotating shaft and connected to one end of the cutting blade. The gear reduction mechanism also includes a connecting end, and an oil seal mechanism is provided between the connecting end and the motor output end. This utility model solves the problem of excessive internal moving parts in pruning machines, leading to repeated friction during high-frequency shearing operations, resulting in a higher failure rate and increased equipment maintenance costs.
Owner:ZHEJIANG ZHONGYONG TOOLS CO LTD
Drag chain internal spacer structure facilitating threading
PendingCN122083114ASolve centralized placement needsMeet centralized placement needsHauling chainsHoisting chainsClassical mechanicsChain link
Owner:郭易
A fracturing operation monitoring and early warning system and method thereof
ActiveCN121214644Bhigh sensitivityimprove accuracyDesign optimisation/simulationAlarmsEarly warning systemPhysical model
The present application relates to the technical field of fracturing engineering safety monitoring and intelligent early warning, and specifically relates to a fracturing construction monitoring and early warning system and method, which comprises: obtaining an initialized equivalent system resistance and a flow state correction index; constructing a reference physical model; calculating a theoretical pressure value; calculating a deviation index; in response to the deviation index being greater than a preset dynamic judgment threshold, triggering geological state inversion; in response to the deviation index being less than or equal to the dynamic judgment threshold, returning to execute the step of real-time collection of a current real-time pressure value and a current real-time displacement value of a high-pressure grouting pump; inversely solving to obtain an updated equivalent system resistance; calculating to obtain a risk index; generating a hierarchical early warning and decision instruction; and in response to an early warning event confirmation, updating the initialized equivalent system resistance in the reference physical model to the updated equivalent system resistance; the present application realizes the automation and intelligentization of early warning and decision making, ensures construction safety and improves engineering quality.
Owner:DONGYING HUAXING OIL & GAS ENGINEERING CO LTD
Corner torque wrench calibration method
PendingCN122016144Aeasy to controlImprove calibration accuracyMachine part testingSpannersControl systemControl engineering
The invention provides a corner torque wrench calibration method, which comprises the steps of simulating and executing accurate control operation aiming at dynamic resistance torque through an optimized response path, and synchronously matching torque output with angle change to obtain a simulation result after calibration precision is enhanced; obtaining deviation data in a simulation result, carrying out iterative correction on the control system by adopting a feedback algorithm, and determining a corrected torque output model to improve the overall efficiency; according to the corrected torque output model, generating a resistance torque adjustment scheme at multiple angles, and processing complex working conditions through an integrated real-time response mechanism to obtain a final dynamic simulation framework; and outputting a calibration precision index from the final dynamic simulation framework, and confirming that the index meets industrial requirements by adopting a verification algorithm, thereby completing comprehensive optimization of the wrench calibration process.
Owner:HENAN PROVINCE INST OF METROLOGY
A pure electric mine truck lock block and torque control method and device, electronic equipment and storage medium
PendingCN122589994AStable responseFast and reliable response
The application provides a pure electric mine lock blocking and torque control method and device, electronic equipment and a storage medium, and relates to the technical field of pure electric mine control. The method comprises the following steps: S100, real-time monitoring of current vehicle state parameters; S200, continuously judging whether all lock blocking conditions are met simultaneously in combination with a preset reference value corresponding to the current vehicle state parameters; until the judgment is yes, entering a lock blocking state, and performing S210 and S300; S210, limiting the drive motor speed to be kept below the forced upshift speed; S300, continuously judging whether all lock blocking conditions cannot be met simultaneously in combination with the corresponding reference value; until the judgment is yes, exiting the lock blocking state, and performing S310; S310, setting the target torque to be adjusted by the control end alone, so that the target torque is equal to the actual torque, and then adjusting the target torque to be equal to the torque corresponding to the current vehicle accelerator pedal opening degree. The application can improve the driving experience and the vehicle life, and has strong practicability.
Owner:CHENGDU YIKONG ZHILIAN AUTOMOTIVE ELECTRONICS CO LTD
A hertz signal digitizing processing system for underground pipeline detection
This invention discloses a Hertz signal digitization processing system for underground pipeline detection, relating to the field of electromagnetic detection technology. The system verifies the transmission frequency to generate an injection time series, collects and calculates time differences, amplitude mapping, and bandwidth diffusion sorting to obtain response coefficients, classifies and marks frequencies to remove end-point and front-end superimposed duplicates, and reconstructs adjacent frequencies by splitting and reassembling. It screens for frequency differences between adjacent sampling points to screen for anomalies and filter continuous segments, and uses three-point grouping and matching to calculate amplitude changes and generate trajectory coordinates from the center point. This Hertz signal digitization processing system for underground pipeline detection, by verifying the relationship between the output frequency and a preset frequency band, and by splitting the frequency into numbered frequency injection time series with output durations using a fixed step size, ensures that the transmitting frequency is no longer limited to a single setting or coarse scanning. It also incorporates arrival time, energy changes, and bandwidth expansion information, enhancing the ability to distinguish between medium attenuation, path deflection, and local anomalies.
Owner:HEBEI KEWEI NEW MATERIALS TECHNOLOGY DEVELOPMENT CO LTD
Swimming pool water speed self-adaptive control method and system based on human body detection
ActiveCN121541448Bquick responseEliminate the influence of water speed controlControllers with particular characteristicsHuman bodyAlgorithm
The application relates to the technical field of pool control, in particular to a pool water speed self-adaptive control method and system based on human body detection. The method comprises the following steps: outputting an observation position and a detection confidence of a human body target according to a target detection model; predicting a predicted position according to a motion model, and calculating a difference between the observation position and the predicted position to obtain an observation deviation; weighting and statistically processing the observation deviation sequence by using the detection confidence to obtain a trend factor; determining an observation noise covariance according to the detection confidence, determining a process noise covariance according to the trend factor, calculating a Kalman gain, fusing the observation deviation into the predicted position by using the Kalman gain, and obtaining an optimal state; and adaptively adjusting the output power of a pool propeller according to the optimal state. Through the technical scheme, the pool propeller can output water flow dynamically matched with the swimming speed of a swimmer, and water speed self-adaptive control is realized.
Owner:FOSHAN SHUIJINGDAO LEISURE EQUIP
Regional load uncertainty perception modeling and prediction method for novel power system
PendingCN121965479AClear association logicReliable physical supportBiological modelsAc network circuit arrangementsRelational modelNew energy
The invention discloses a novel power system-oriented regional load uncertainty perception modeling and prediction method, and particularly relates to the technical field of load prediction. According to the method, a three-level structured influence factor system and an influence relation model are constructed based on distributed new energy output characteristics, charging and discharging states of an energy storage device and charging behaviors of an electric vehicle, and a load uncertainty influence factor characteristic library is formed; then, a multi-scale feature representation library is generated by extracting distribution features, fluctuation features and time sequence response features; a Bayesian long-short-term memory network is combined with an attention mechanism to serve as a basic framework, and a regional load uncertainty perception model is constructed through scene disturbance training, noise enhancement training and multi-target optimization training; and finally, reasoning and outputting a load distribution range, a confidence interval and a fluctuation trend through the model. According to the method, multi-dimensional and precise representation and prediction of regional load uncertainty are realized, and reliable data support is provided for scheduling decisions of a novel power system.
Owner:STATE GRID CORP NORTHEAST DIVISION