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49 results about "Energy component" patented technology

Energy Components. Energy Components (EC) is a product suite developed by Tieto for the oil and gas industry. It monitors business processes for the production, transport and sales of oil and gas, and facilitates collaboration between licence holders in oil fields around the world.

Soil in-situ nitrogen, phosphorus and potassium measuring system based on digital colorimetric method

The invention discloses a soil in-situ nitrogen, phosphorus and potassium measuring system based on a digital colorimetric method, which comprises a base and an upper computer, and a monitoring box is arranged on the base through a support column; a colorimetric assembly and a data acquisition assembly acting on the colorimetric assembly are arranged in the monitoring box; an energy assembly is arranged on the monitoring box, the data acquisition assembly is electrically connected with the upper computer and the energy assembly, and a water supplementing assembly and an extraction assembly are arranged on the side wall of the monitoring box; the extraction assembly is communicated with the colorimetric assembly; a developing colorimetric method is introduced through the water supplementing assembly, the extracting assembly and the colorimetric assembly, the data collecting assembly is supported through the energy assembly, developing data are collected and transmitted to the upper computer to extract color information, and rapid and accurate determination of nitrogen, phosphorus and potassium in soil can be rapidly achieved without an electrode sensor.
Owner:HEBEI UNIV OF ENG

Energy System Scheduling Using Consumption and Production Prediction

Lowest cost usage scheduling of an energy system during a time interval of interest is achieved by utilizing two components of learning and optimization. First, several learning methods are used to forecast energy production and if needed energy consumption of a given group of energy components as a function of historical production data, weather, and solar irradiance data collected from weather and geo reports. A classification approach is used to select the learning model. A classification approach is used to select the learning model and approach. Then, an optimization problem is formulated and solved to create the optimal schedule of energy usage during time intervals of interests for the given group of energy components subject to scheduling and equipment constraints. Accordingly, integrated iterative methods, programs, and systems are described aiming at minimizing the cost of energy consumption for the given group of energy components within time intervals of interest.
Owner:YOUSEFIZADEH HOMAYOUN +1

Automatic energy conversion device in double-electricity combination form

The utility model discloses an automatic energy conversion device in a double-electricity combination form, which is applied to conversion among energy components required by self-starting of an emergency generator on a ship. Starting energy sources suitable for the device are two sets of independent storage battery packs, namely a so-called double-power combination. A conversion assembly of the conversion device mainly comprises two sets of contactors which are interlocked: when a coil of a first contactor is electrified, a coil of a second contactor is de-electrified; and vice versa. The first storage battery pack is connected with the emergency generator through a normally open main contact of the first contactor, and the second storage battery pack is connected with the emergency generator through a normally open main contact of the second contactor. Through the device, the main starting energy source can be manually set, and when the main storage battery pack cannot normally start the emergency generator, the standby storage battery pack is automatically switched and started, so that the completion of self-starting of the emergency generator is ensured. And the main storage battery pack is regularly and alternately arranged, so that the service life of the double-power starting energy can be relatively prolonged.
Owner:SHANGHAI MERCHANT SHIP DESIGN & RES INST

Non-contact energy and data dual-channel transmission method for rotary transformer

The invention relates to the technical field of data transmission, and discloses a rotary transformer non-contact energy and data dual-channel transmission method, which comprises the following steps: identifying an energy component and a data component of a high-frequency pulse signal, separating an energy transmission frequency band from a data transmission frequency band, and embedding a coding sequence; based on a thermal compensation mechanism, the expansion amount of the compensation structure and the main structure change synchronously; establishing a dual-channel control mechanism based on the energy transmission frequency band and the data transmission frequency band to avoid interference frequency and perform waveform reconstruction; configuring a frequency band distribution mechanism to enable the energy transmission performance and the data anti-interference capability to form a complementary relationship in a frequency domain; based on the synergistic effect of a thermal compensation mechanism and the frequency band distribution mechanism, the influence of deformation on frequency band isolation is counteracted, and signal interference is eliminated through frequency point avoidance and processing based on the coding sequence, so that the energy transmission efficiency and the data fidelity are optimized. According to the invention, the data transmission reliability can be improved under extreme working conditions.
Owner:CNPC BOHAI DRILLING ENG +1

Natural resource intelligent monitoring device

The invention relates to the field of natural resource monitoring, and discloses a natural resource intelligent monitoring device which comprises a cabin body, a movable cover is installed at the bottom of the cabin body, a middle cover is slidably connected to the periphery of the end, away from the cabin body, of the movable cover, and a base is fixed to the side, away from the cabin body, of the middle cover. A soil sensor is installed in the base, a plurality of supporting assemblies are arranged on the periphery of the base, protection assemblies are arranged on the left side and the right side of the cabin body, two wind direction sensors are installed on the front side of the cabin body, a top cover is movably connected to the rear side of the cabin body, and an energy assembly is slidably connected to the interior of the cabin body. And a driving assembly is arranged in the cabin body. And the endurance time of the equipment is prolonged through the energy assembly. The angle of the solar panel is adjusted through the electric movable block, the optimal orientation is kept, solar energy collection is maximized, and it is ensured that equipment continuously works for a long time.
Owner:JILIN WATER RESOURCE & HYDROPOWER CONSULTATIVE CO OF P R CHINA +2

Marine CAN communication system and ship

The utility model relates to a CAN communication system for a ship and the ship. The marine CAN communication system comprises at least one set of marine machines, a plurality of bus adapters and a plurality of terminal resistors. The plurality of terminal resistors comprise two first terminal resistors; the plurality of bus adapters are sequentially arranged along the extension direction of the bus, and the plurality of bus adapters are connected to a primary branch line of the bus; each marine machine comprises a power assembly, an interaction assembly and an energy assembly. For each set of marine machine, the interaction assembly and the energy assembly are connected to respective corresponding bus adapters through secondary branch lines of a bus, and the power assembly is connected to the corresponding bus adapter through a primary branch line or a secondary branch line; when each set of marine machine is connected to the bus, the power assembly, the energy assembly and the interaction assembly are sequentially arranged in the extension direction of the bus. The two first terminal resistors are arranged at the first end and the second end of the bus respectively. According to the invention, the complexity of wiring on a ship can be reduced, and the communication quality of CAN bus communication is improved.
Owner:DONGGUAN EPROPULSION INTELLIGENCE TECH LTD

A multi-redundant anti-loosening load-equalizing nut system based on double axial clamping and vibration energy conversion and an assembling method thereof

The application provides a multiple-redundancy anti-loosening uniform load nut system based on biaxial counter-pressing and vibration energy conversion and an assembling method, which comprises an anti-loosening locking module and a standard nut; the anti-loosening locking module is used for cooperating with a bolt; the standard nut is used for cooperating with the bolt; when the anti-loosening locking module and the standard nut cooperate to lock a workpiece, biaxial counter-pressing is formed between the standard nut and the anti-loosening locking module. The application establishes a static mechanical balance of biaxial counter-pressing, and utilizes the rotation direction characteristics of the positive and reverse threads to lock the nut and intelligently convert the energy component leading to loosening in random transverse vibration into a driving force of dynamic enhanced locking force, so that a positive feedback anti-loosening mechanism of the tighter the better is realized.
Owner:SHANGHAI HAODASHENG TECHNOLOGY CO LTD

Intelligent separation method for high-dimensional multi-component characteristics of signal-noise superimposed wave field in well seismic

ActiveCN117310804Bimprove accuracystrong discriminationReflected wavesWave field
The present application relates to a kind of well seismic signal-noise superposition wave field high-dimensional multi-component feature intelligent separation method, belong to geophysical oil and gas resource exploration field.Establish time-domain multi-component decomposition result serves different dimension differentiation characteristic property expression;Six-dimensional characteristic attribute space based on multi-component signal-noise component is established, and the mathematical characteristics of complex signal wave and multiple types of noise in DAS record, such as direct wave and reflected wave, are revealed;Dual-stage highly integrated framework with tree model as base learner is set up to complete the feature point category determination separation task in high-dimensional attribute space, so as to accurately and efficiently realize low-damage preservation of signal wave field and maximum suppression of noise wave field.The method is flexible, accurately preserves the amplitude characteristics and frequency energy components of DAS two-dimensional exploration record signal field in well, the mathematical basis is reliable and reliable, and the feature is strongly interpretable, which provides an important basis for thin and fine layer detection, oil and gas reservoir exploitation and other practical applications.
Owner:JILIN UNIVERSITY

HVAC system with predictive control of waterside and airside HVAC equipment

A predictive controller for HVAC equipment obtains a control objective or a constraint that defines an amount of energy consumed by both waterside equipment and airside equipment during each time step of a time period as a summation of multiple equipment-specific energy components including, for each time step, a waterside energy component indicating an amount of energy consumed by the waterside equipment during the time step and an airside energy component indicating an amount of energy consumed by the airside equipment during the time step. The predictive controller performs a predictive control process using the control objective or the constraint to determine values of the equipment-specific energy components during each time step of the time period as outputs of the predictive control process. The predictive controller operates the waterside equipment and the airside equipment using the values of the equipment-specific energy components.
Owner:TYCO FIRE & SECURITY GMBH

Energy components and vehicles

ActiveCN224447898UMechanical engineeringEnergy component
This application relates to the field of vehicle exterior technology and provides an energy port assembly and a vehicle. The energy port assembly is disposed on the side panel of the vehicle and located within a recessed space on the side panel. The energy port assembly includes an energy port seat disposed on the side panel and an openable and closable energy port cover disposed on the energy port seat. Furthermore, the energy port cover has a recessed groove extending towards the interior of the vehicle and an air intake hole located on the side wall of the groove. When the energy port cover is closed, the air intake hole can communicate with the air intake port on the side wall of the recessed space. By providing a groove on the energy port cover and an air intake hole on the side wall of the groove, the energy port assembly of this application integrates the air intake function into the energy port cover. The air intake function is achieved through the communication between the air intake hole and the air intake port on the side wall of the recessed space. This combines the originally separate energy port assembly and air intake into one, thereby reducing the number of parts and assembly steps and improving vehicle manufacturing efficiency.
Owner:GREAT WALL MOTOR CO LTD

Aggregated energy management system—infrastructure

Aggregated energy management (e.g., using a computerized tool) is enabled. For example, a system can comprise a memory that stores computer executable components, and a processor that executes the computer executable components stored in the memory, wherein the computer executable components comprise an energy component that determines an energy resource available to a bidirectional charging station electrically coupled to a vehicle, and based on current energy market demand, a unit price applicable to the energy resource, and a charging component that, based upon a defined charging criterion being determined to be satisfied, initiates a transfer of the energy resource between the vehicle and the bidirectional charging station according to the unit price.
Owner:VOLVO CAR CORP

Thermal management status marking method and related equipment

The present application proposes a state marking method for a thermal management mode and related equipment, wherein the method includes: executing an energy component shutdown process and counting the execution time t1 of the energy component shutdown; executing a water pump shutdown process and counting the execution time t2 of the water pump shutdown; executing a valve switching process and counting the execution time t3 of the valve switching; executing a water pump opening process and counting the execution time t4 of the water pump opening; executing an energy component opening process and counting the execution time t5 of the energy component opening; in response to any execution time t1, t2, t3, t4, or t5 exceeding a preset time threshold, determining that the device corresponding to the execution time exceeding the preset time threshold is a faulty device; determining at least one target thermal management mode corresponding to the faulty device from multiple thermal management modes, and marking the at least one target thermal management mode as unavailable. In this way, unavailable thermal management modes will not be executed, and the operation is simple and applicable to the entire thermal management platform.
Owner:BEIJING CO WHEELS TECH CO LTD

Flexible balanced resource allocation method and device considering uncertainty of new energy

The invention provides a flexible balanced resource allocation method and device considering uncertainty of new energy, and the method comprises the steps: obtaining natural day time scale data and typical extreme scene label data of a whole year, and decomposing an energy storage main state into a daytime energy component and a scene-driven intra-day energy component according to the data; establishing a first coupling relationship between the daytime energy component and a seasonal energy storage model, and a second coupling relationship between the scene-driven intraday energy component and a short-time energy storage model; based on the second coupling relationship, using a short-time energy storage model to generate charging and discharging power and constraining the charging and discharging power not to exceed the rated capacity; and based on the first coupling relationship, updating the daytime energy component through the seasonal energy storage model and constraining the daytime energy component not to exceed the investment capacity. According to the method, the energy storage charging and discharging power and capacity are effectively restrained, and flexible balance resource optimization configuration under the uncertainty of new energy is achieved.
Owner:STATE GRID JIANGSU ECONOMIC RES INST +2

A non-contact energy and data dual-channel transmission method of a rotary transformer

The application relates to the technical field of data transmission, and discloses a rotary transformer non-contact energy and data dual-channel transmission method, which comprises the following steps: identifying energy components and data components of a high-frequency pulse signal, separating an energy transmission frequency band and a data transmission frequency band and embedding a coding sequence; based on a thermal compensation mechanism, making the expansion amount of a compensation structure change synchronously with a main structure; based on the energy transmission frequency band and the data transmission frequency band, establishing a dual-channel control mechanism to avoid interference frequencies and reconstruct waveforms; configuring a frequency band allocation mechanism to make the energy transmission performance and the data anti-interference capability form a complementary relationship in the frequency domain; based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, offsetting the influence of deformation on frequency band isolation, and eliminating signal interference through frequency point avoidance and processing based on the coding sequence to optimize energy transmission efficiency and data fidelity. The application can improve data transmission reliability under extreme working conditions.
Owner:CNPC BOHAI DRILLING ENG +1

Optimized operation method of off-grid direct-current micro-grid

The invention discloses an optimized operation method of an off-grid direct-current micro-grid. The off-grid direct-current micro-grid comprises a photovoltaic power generation system, a battery energy storage system, a fuel cell and an electrolytic cell which are connected through a direct-current bus. The optimized operation method comprises the following steps: constructing a system mathematical model of an off-grid direct current micro-grid, and defining a power balance relationship between a direct current load and each energy component; the system mathematical model comprises mathematical models of a photovoltaic power generation system, a battery energy storage system, a fuel cell, an electrolytic cell and a direct current load; based on the system mathematical model, establishing a linear optimization model by taking minimization of hydrogen fuel consumption or maximization of electrolytic cell hydrogen energy production as a target; the constraint condition of the linear optimization model comprises a power balance relation; and solving the linear optimization model by adopting a linear programming algorithm so as to dynamically distribute power output of each energy component, and controlling the operation of the micro-grid based on a solving result. The method can solve the problems that in the prior art, an off-grid direct-current micro-grid is high in operation cost, and an optimization algorithm is complex in calculation and difficult to apply in real time.
Owner:XUZHOU TONGSHAN POWER SUPPLY BUREAU +1

Energy storage system optimization scheduling method and device for high-frequency calling scenario

The application discloses a high-frequency calling scene-oriented energy storage system optimization scheduling method and device, relates to the technical field of power system scheduling, and comprises the following steps: according to a power calling instruction sequence of an energy storage system, a high-frequency calling index is calculated; if the high-frequency calling index meets a predetermined high-frequency calling index, a sliding filter processing is performed on the power calling instruction sequence to obtain a high-frequency power component, a low-frequency energy component and a calling direction bias component; power type, energy type scheduling parameter configurations and SOC correction parameter configurations are respectively generated; and a high-frequency calling response strategy is obtained through global optimization. The application solves the technical problems that the existing energy storage scheduling mode cannot distinguish high-frequency fluctuations and continuous energy demand, cannot differentially allocate energy storage unit output, and simultaneously cannot balance state deviation caused by charging and discharging imbalance, and achieves the technical effect of realizing the optimization scheduling of response speed, equipment life and operation safety in the high-frequency power calling scene.
Owner:内蒙古中电储能技术有限公司

Systems and methods for a rack structure for a transport vessel adapted for use with an offshore self-elevating vessel

A deployed L-shaped rack structure interengaged with a self-elevating vessel is used for supporting a feeder transport vessel, such as an ocean or sea barge, to eliminate relative motion or movement between the vessels. Some of the proposed rack structures are movable between a stowed position and a deployed position. The method of use for the movable rack structures includes the self-elevating vessel arriving at a predetermined location, elevating the hull of the self-elevating to a suitable height above the sea surface at a desired still water line (SWL) to create an air gap, and then deploying the rack structure. A feeder transport vessel, with its cargo and / or components, can then be floated over the deployed rack structure. The self-elevating vessel then uses its jacking system including a plurality of legs supported on the seabed to raise the feeder transport vessel and its cargo and / or components to a desired height above the SWL. From this position relative motion between the self-elevating vessel and transport vessel is eliminated so that the self-elevating vessel lifting device, such as a crane, can be more safely used to install energy components, such as wind turbine components. A bottom supported tower / column section could also be assembled and installed in seabed using the self-elevating vessel and rack structure along with the lifting device. A fixed rack structure system and its method can also be advantageously used with a self-elevating vessel. The systems and methods could be used in reversing the method or steps for deinstallation of the energy components installed in the sea.
Owner:CCCC INT HLDG LTD

Method, device and equipment for analyzing broadband oscillation characteristics of hybrid power system with grid-forming and grid-following types and storage medium

The application provides a method, device and equipment for analyzing broadband oscillation characteristics of a follow-grid-construction grid hybrid power system and a storage medium. The application relates to the technical field of power grid control. The method comprises the following steps: when the follow-grid-construction grid hybrid power system is at a steady-state equilibrium point, a disturbance is applied to a state equation of the system, a branch mode energy function at an outlet of a follow-grid type wind turbine is determined, and a branch mode energy function at an outlet of a construction grid type wind turbine is determined according to an active power-frequency control equation of a grid-side converter; the branch mode energy function at the outlet of the follow-grid type wind turbine and the branch mode energy function at the outlet of the construction grid type wind turbine are superposed to obtain a mode energy curve, parameter identification is performed, energy amplitudes and frequencies of different modes are obtained, and the participation degrees of the different modes in oscillation are further determined. The application identifies mode energy components in different frequency bands by constructing mode energy functions at outlets of follow-grid type wind turbines and construction grid type wind turbines, and can accurately determine a dominant oscillation mode.
Owner:JILIN ELECTRIC POWER RES INST LTD +2

An energy connection device

This application discloses an energy connection device, belonging to the technical field of connection devices. The energy connection device includes a tool side and a supply side, energy components disposed on the tool side and supply side for docking, and a power component disposed on the supply side away from the tool side for docking or separating the supply side and tool side. The floating structure includes an elastic component disposed between the power component and the supply side for buffering during docking, a spherical plain bearing disposed on the elastic component and connected to the supply side, and a central support component disposed on the power component. This energy connection device, by using a floating structure to compensate for offsets in any direction of the docking plane through compression of the elastic component, deflection of the spherical plain bearing, and rotational support of the central support component, adapts to minor deviations, ensures reliable docking of the energy components, improves docking success rate and efficiency, and is beneficial for enhancing the flexibility and stability of the production line.
Owner:SHANGHAI SHENGHAO AUTOMATION TECH CO LTD

Device as a flow divider for reducing energy components during the relative motion of bodies in liquid media and their displacement

The submitted patent, "Devices for Utilizing Energy Components in the Relative Motion of Bodies in Liquid Media During Displacement by Flow Dividers," demonstrates significant, energy-efficient potential. Observations of ships on the Main-Danube Canal led to energy analyses and the applicant's own experiments. The failures of these experiments, coupled with limited resources, resulted in a feasible experimental setup and an evaluation strategy that enabled the analysis of the results. These experiments demonstrated the possibility of energy recovery through the utilization or reduction of displacement energy. The experiments described in Section 1 of the patent description show that a flow divider positioned in front of the ship, both above and below the waterline, can recover or reduce a portion of the displacement energy.The use of flow dividers can certainly also positively influence wave losses, which have always been a focus of attention. The following observation is perhaps warranted here. Approximately 90,000 very large ships are sailing the world's oceans. The cruise ship "AIDA" consumes 140 tons of heavy fuel oil daily. This means that, with the application of a well-adapted design (19.8%), a daily profit of approximately €5,800 could be achieved.
Owner:SCHRODER WILHELM

A repeatable deployment mechanism for a rollable thin film solar cell array

The present application relates to the technical field of thin-film solar cell array, and discloses a repeatable unfolding and winding mechanism for a winding type thin-film solar cell array, comprising a winding drum, two supports, a flattening assembly, a tightening assembly and a pressing assembly, the winding drum is used for winding solar cell films; the two supports are respectively arranged at the two ends of the winding drum; the flattening assembly is arranged on the support and is used for smoothing the solar cell films; the tightening assembly is arranged on the support and is used for tensioning the solar cell films; the pressing assembly is arranged on the support and is used for pressing the solar cell films against the winding drum; the flattening assembly, the tightening assembly and the pressing assembly are sequentially arranged along the circumference of the winding drum. Through the actions of smoothing, tensioning and pressing, the solar cell films are neatly wound on the winding drum, which is beneficial to improve the winding efficiency of the thin-film solar cell array and facilitate the replacement and maintenance of the energy components of the spacecraft.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

Method and computing system for simulating power supply circuit

The present disclosure relates to a computer-implemented method (20) for simulating a power supply circuit (10), where the method comprises: (S20) determining a modified nodal analysis (MNA) model of the power supply circuit; (S21) converting the MNA model into a Laplacian model, wherein the Laplacian model describes the relationship between the circuit waveform and the power supply waveform through a Laplacian function matrix; (S22) determining the characteristic frequency of the power supply circuit based on the matrix of the Laplacian model; (S23) determining a transfer function from one circuit waveform to each of the other circuit waveforms based on the matrix of the Laplacian model; (S24) determining a weighting coefficient of a characteristic function of the characteristic frequency based on an initial state of a passive energy component of the power supply circuit and based on the transfer function; and (S25) predicting a circuit waveform of the power supply circuit based on the characteristic frequency, the transfer function and the weighting coefficient.
Owner:MITSUBISHI ELECTRIC CORP

Repeatable unfolding and folding mechanism for winding type thin film solar cell array

The invention relates to the technical field of thin film solar cell arrays, and discloses a repeatable unfolding and folding mechanism for a winding type thin film solar cell array, which comprises a winding drum, two brackets, a flattening assembly, a wrapping assembly and a pressing assembly, and is characterized in that the winding drum is used for winding a solar cell diaphragm; the two supports are arranged at the two ends of the winding drum respectively. The flattening assembly is arranged on the bracket and is used for flattening the solar cell diaphragm; the wrapping assembly is arranged on the support and used for tensioning the solar cell diaphragm. The pressing assembly is arranged on the support and used for abutting against the solar cell diaphragm to the winding drum. The flattening assembly, the wrapping assembly and the pressing assembly are sequentially arranged in the circumferential direction of the winding drum. Through the actions of smoothing, tensioning, extruding and the like, the solar cell diaphragm is flatly folded on the winding drum, the winding efficiency of a thin film solar cell array is improved, and energy components of a spacecraft are convenient to replace and maintain.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

Integrated system and method for liquid oxygen and liquid methane

This invention discloses a system for the integrated utilization of liquid oxygen and liquid methane, comprising a liquid oxygen component, a liquid methane component, a combustion energy component, a second heat exchanger, an oxygen storage tank component, a methane storage tank component, and a CO2 storage tank component. The inlet end of the combustion energy component is connected to the liquid oxygen component and the liquid methane component. CO2 generated after the liquid oxygen and liquid methane are mixed and combusted in the combustion energy component is input to the inlet end of the second heat exchanger via a pipeline. The liquid oxygen component and the liquid methane component are also connected to the inlet end of the second heat exchanger, and the outlet end of the second heat exchanger is connected to the oxygen storage tank component, the methane storage tank component, and the liquid CO2 storage tank component, respectively. This invention also discloses a method for using the integrated utilization system of liquid oxygen and liquid methane. The beneficial effects of this invention are: carbon capture and zero emissions are achieved; the system has multiple products, high comprehensive utilization rate, and good economic benefits.
Owner:VACREE TECH

Predictive maintenance of hydrogen-energy systems

The disclosure notably relates to a computer-implemented method for predictive maintenance of a system. The system comprises a hydrogen energy component, a cooling circuit, at least one actuator of the cooling circuit and at least one sensor collecting operating data during an operating of the system. The method comprises, during the operating of the system, the following three steps. The method comprises a first step of obtaining the operating data collected by to the at least one sensor. The method comprises a second step of estimating that a current state of the system is the fault state. The method comprises a third step of predicting a future state of the system. Such a method forms an improved solution for predicting maintenance of the system comprising the hydrogen energy component.
Owner:UNIVERSITE DE TECHNOLOGIE DE BELFORT MONTBELIARD +3

A dynamic power quality disturbance signal detection method, device and medium

ActiveCN121347949BImplement adaptive resolution adaptationOvercoming difficult-to-balance limitationsElectrical testingTime–frequency analysisVariable resolution
The application discloses a dynamic power quality disturbance signal detection method, device and medium, and the method steps comprise the following steps: S01, acquiring a dynamic power quality disturbance signal to be detected; S02, dividing a signal frequency band, and performing time-frequency analysis on the dynamic power quality disturbance signal by using an improved variable resolution S transform method; the improved variable resolution S transform method is an S transform based on a Gaussian window, and a Gaussian window scale factor is used to optimize the Gaussian window function; S03, performing a synchronous squeezing rearrangement operation on the improved variable resolution S transform result, so that energy components scattered in adjacent frequency intervals are aggregated to real frequency axis positions, and a time-frequency matrix after synchronous squeezing rearrangement is obtained; and S04, detecting signal components of the time-frequency matrix after synchronous squeezing rearrangement. The application can reduce energy diffusion and realize high-precision detection of non-stationary multi-scale complex dynamic power quality disturbance signals.
Owner:湖南工商大学

A hybrid energy storage platform capacity configuration system in a microgrid

The application discloses a micro-grid hybrid energy storage platform capacity configuration system, and belongs to the field of power system planning and design.The system comprises a power demand profiling module, which is used for decomposing the obtained net load power time sequence into a high-frequency power component and a low-frequency energy component based on a preset energy storage type demarcation frequency; a cost modeling module, which is used for determining the annual aging cost of a super capacitor based on the high-frequency power component, and determining the annual aging cost of a battery based on the low-frequency energy component; the annual aging cost of the battery comprises a stress additional cost related to the power change rate of the low-frequency energy component; and a collaborative optimization configuration module, which is used for combining the annual aging cost of the super capacitor and the annual aging cost of the battery determined by the cost modeling module, and a preset initial investment cost, so that the optimization algorithm can evaluate and measure the specific influence of different operation strategies on the long-term health of the battery.
Owner:CHINA THREE GORGES UNIV

Milling process multi-state monitoring method and system based on dimensionless energy ratio index

The invention provides a milling process multi-state monitoring method and system based on a dimensionless energy ratio index. The method comprises the steps that a vibration signal of a main shaft during machining of a numerical control machine tool is collected; performing noise reduction preprocessing on the collected vibration signal to obtain a signal with stable instantaneous amplitude fluctuation; performing Fourier spectrum analysis on the signal with stable instantaneous amplitude fluctuation to obtain an amplitude spectrum of the signal, and splitting frequency domain energy of the amplitude spectrum to obtain each frequency domain energy component; on the basis of the obtained frequency domain energy components, dimensionless energy ratio indexes used for tool wear monitoring, tool damage monitoring and machining chatter monitoring are calculated respectively; and when the index exceeds a preset threshold value, it is judged that the corresponding cutter abrasion, cutter damage or machining chatter state occurs. Real-time monitoring of tool abrasion, damage and flutter can be achieved only through a single accelerometer, the sensor cost and the data processing complexity are remarkably reduced, the sensitivity to cutting parameters and tool bounce interference is low, and high universality and accuracy are achieved.
Owner:XI AN JIAOTONG UNIV

Radar self-checking signal cavity power division equipment with anti-interference structure

The invention discloses radar self-checking signal cavity power dividing equipment with an anti-interference structure, and relates to the technical field of wireless radio frequency devices, the radar self-checking signal cavity power dividing equipment comprises a cavity, output ends, input ends and a vibration module, the left side of the outer wall of the cavity is provided with the two input ends, the right side of the outer wall of the cavity is provided with the two output ends, and the vibration module is connected with the output ends. An output end is installed on the right of each of the front side and the rear side of the outer wall of the cavity, a vibration module is installed on the lower side of the outer wall of the cavity, and the vibration module comprises a piezoelectric actuator, a three-axis acceleration sensor, a spectrum analyzer, an elastic base and an energy assembly. By installing the vibration module, the function of automatically eliminating environmental vibration is achieved, the problems that vibration sensing precision is insufficient, passive vibration isolation response lags behind, the energy utilization rate is low and the environmental adaptability is poor are solved, vibration can be actively restrained, dependence on external energy is reduced, and the vibration sensing precision and the environmental adaptability of equipment are improved.
Owner:UNIFLIGHT(NANTONG)TECH CO LTD

Massage machine core and massage equipment

The utility model relates to the field of massage equipment, and provides a massage machine core and massage equipment, the massage machine core comprises a frame body and a machine core shell, and a sliding rail is arranged on the frame body; a sliding rail is arranged on the movement shell, a sliding groove structure which is in sliding fit with or locked with the sliding rail is arranged on one side face of the movement shell, a through opening which is separated from the sliding groove structure is formed in one end of the sliding rail, and a massage unit and an energy part which provides electric energy for the massage unit are arranged on the movement shell. The position of the movement shell can be adjusted on the sliding rail so as to adapt to the use of people with different body types. Furthermore, the movement shell can be separated from the sliding rail, so that the movement shell part can be independently used, and the flexibility or diversity of use is improved.
Owner:XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP CO LTD +1