1185 results about "Electric power transmission" patented technology

The invention discloses a bus duct full life cycle health management system based on digital twinning, and relates to the technical field of health management. The multi-source sensor collects operation parameters and static information, the digital twin modeling and mapping module constructs a physical model and associates real-time data, and a thermal-electric coupling equation is used for simulating temperature; the state monitoring and fault diagnosis module compares data to judge states and diagnoses faults by means of methods such as a fault tree, the health assessment and decision making module constructs an index system to assess health and makes a maintenance decision, the data management and interaction module stores data and realizes visual interaction and system integration, and the intelligent optimization module performs intelligent optimization based on operation and maintenance data. And optimizing model parameters and a decision strategy. According to the invention, intelligent health management of the bus duct is realized, multi-source data acquisition is accurate and comprehensive, fault diagnosis is more accurate and prediction is more timely through combination of digital twinning and an algorithm, and intelligent assessment assists scientific maintenance decision; and the operation and maintenance efficiency and the power transmission stability are improved through system integration and edge calculation.

This invention advances power grid operational planning by introducing a mid-term scheduling framework for integrated hydro-wind-solar systems that accounts for heterogeneous daily load profiles across multiple receiving-end power grids. The proposed approach utilizes an adaptive variable-step search algorithm to segment loads into peak, flat, and valley intervals. By synthesizing five key metrics, including mean daily load, daily load factor, peak-valley differential ratio, load rates during peak / valley periods, and timing of peak / valley occurrences, the method accurately captures region-specific load patterns and peak-shaving demands. This enables a refined reconstruction of load profiles of receiving-end power grids. A nested multi-temporal scheduling model that couples medium- and short-term horizons to simultaneously maximize total energy production and minimize transmission imbalances among power grids. The model is addressed by using the mixed-integer linear programming (MILP) to obtain medium- and short-term generation schedules and power transmission schedules.

The invention discloses an optical cable fitting fatigue damage detection method and system, and relates to the technical field of power transmission line state monitoring, and the method comprises the following steps: S1, constructing a wind field and structure coupling observation baseline, obtaining a full-time-domain vibration response signal of an optical cable fitting in a non-uniform wind field environment, generating a phase consistency distribution map, and obtaining a phase consistency distribution map; establishing a corresponding relation between the multi-path reflection source group and the time correlation sequence as a traceable reference for phase analysis; and S2, based on the phase consistency distribution map, performing causal beam demixing processing, performing arrival time difference densification calculation and curvature spectrum separation analysis on each sound wave propagation path, and extracting crack propagation pointing data. According to the method, through wind field-structure coupling observation, path unmixing, phase regression and error checking, multi-path propagation recognition and correction are achieved, crack propagation topology is reconstructed, polarization rotation and a phase suppression mechanism are combined, and direction recognition stability and detection adaptivity are improved.

The present disclosure describes various embodiments directed at a weighing device with a power supply method for components within the weigh platter. It solves the issue of traditional electrical supply methods interfering with weight measurements by embedding an energy storage assembly within the weigh platter. This assembly supplies power to embedded subsystems when needed and recharges when possible, ensuring efficient power supply without disturbing the weighing process. The power transfer can be selectively controlled based on the weight detected or the reader's operational state. The device can be used in various configurations, extending beyond scales with data capture assemblies.

The invention discloses an AI vision-based intelligent inspection system for strong-current transmission line defects, which comprises the following steps of: acquiring a visible light image and an infrared image through an unmanned aerial vehicle, and constructing an image data stream; after preprocessing, introducing a pulse coupling neural network to extract a salient region of the image, and enhancing features of a target region; fusing the saliency mask with the image, inputting a single-time multi-frame detection model to carry out defect identification and positioning, and generating candidate defect bounding boxes and category and confidence information of the candidate defect bounding boxes; and the detection result is optimized through boundary screening and structure rule constraint, and the geographic coordinates of the defect and the number of the tower to which the defect belongs are calculated in combination with image frame positioning information. The method is suitable for intelligent inspection and defect positioning of the power transmission line.

The invention, which relates to the technical field of power transmission, discloses a high-power intelligent temperature control cable comprising a conductor, a first insulating layer, a temperature control system, an early warning system and a protective sleeve. The conductor is made of a high-conductivity material, and the conductor is coated with a first insulating layer; the temperature control system comprises a liquid cooling pipe and a plurality of temperature sensors, and cooling liquid is suitable for flowing in the liquid cooling pipe; the early warning system comprises a temperature sensing optical fiber which is distributed along the axial direction of the conductor, and the temperature sensing optical fiber is connected with a fault early warning module; the protection sleeve wraps the conductor, the temperature control system and the temperature sensing optical fiber and comprises an electromagnetic shielding layer, a mechanical protection layer and a safety protection layer. The temperature sensor and the fault early warning module are used for connecting the control unit. The operating temperature of the cable is adjusted in real time through the temperature control system, and thermal fatigue of the conductor is effectively inhibited; high-strength electromagnetic shielding, mechanical tensile strength and bending resistance are provided through the protective sleeve; and the temperature and strain states of the cable are monitored in real time through the early warning system, so that the operation safety is improved.

A semiconductor device includes: a substrate including active patterns; a device isolation layer disposed between the active patterns; a stacked pattern disposed on the substrate; a power transmission network layer disposed on a first surface of the substrate; a first through via penetrating the stacked pattern; and a second through via disposed between the power transmission network layer and the first through via, wherein the second through via penetrates the active patterns and the device isolation layer.

A method for reducing or eliminating shadows and spreading light around a work area or throughout multiple rooms and spaces, without the need to frequently readjust, the system comprised of at least one or more lighting devices, coupled with a set of attachment mechanisms to link or detach additional light sources, a set of electrical connections for power and data transmission, at least one mounting feature, at least one battery and a controller comprising program instructions executed by a processor to cause the lighting device to change modes, brightness and to send the command wirelessly or through connections to additional lighting devices, charge at least one battery and transfer power to additional connected lighting devices.

An unmanned aerial vehicle having a petrochemical-based engine powering at least one rotational blade for achieving flight provides for improved vegetation removal. The AEV includes a power transformer connected to the engine, the transformer generating electrical power from the operation of the engine and a plurality of electrically-powered blade units, each unit having a blade powered by a motor. In the AEV, a plurality of electrical connectors provide for transferring the electrical power generated by the transformer to each of the electrical motors of the blade units for causing circular rotation of the corresponding blade such that unmanned aerial vehicle is operative to trim the vegetation using the plurality of blade units powered by the engine.

The utility model provides a management function board applied to a mobile phone battery, which belongs to the technical field of mobile phone battery function boards and comprises a battery management module, a battery management module and a battery management module. An FPC flexible circuit layer and a PCB hard circuit layer; the through hole windows are formed in the upper end of the FPC flexible circuit layer, line conduction is achieved through alignment of the multiple layers of through hole windows, the overall mechanical stability of the provided mobile phone battery management function board is remarkably enhanced by adopting the integrated forming and pressing design of the FPC flexible circuit layer and the PCB rigid circuit layer, the FPC and the PCB are tightly combined through the pressing technology, and the reliability of the mobile phone battery management function board is improved. Compared with the prior art, the power management system has the advantages that the interlayer separation risk caused by long-term use or external impact is reduced, the durability and reliability of the whole power management system are improved, in addition, the high reliability of electrical connection is ensured through the accurate via hole windowing design and the SMT high-temperature processing technology, signal transmission is more stable, and power transmission is more efficient.

A power feeding system includes a power transmission control circuit configured to select one of a plurality of first antennas included in a plurality of antennas, and while transmitting a first power transmission signal having a fixed power transmission phase for a non-selected first antenna among the plurality of first antennas, to perform, while selecting the plurality of first antennas one by one, both a first power transmission process of transmitting a first power transmission signal having a predetermined phase from a selected first antenna, and a second power transmission process of transmitting a first power transmission signal having an inverted phase obtained by inverting the predetermined phase from the selected first antenna.

The invention relates to the technical field of cable manufacturing, and discloses a heat preservation frost crack prevention cable which comprises a conductor, an insulating layer and a double-layer co-extrusion functional sheath wrapping the outer side of the insulating layer, and the sheath is composed of a cold-resistant stable layer and a water stop gate layer which are arranged in sequence; nano silicon nitride dispersion liquid is added into the cold-resistant stable layer, polytetrafluoroethylene micro-powder is added into the water stop gate layer, and the nano silicon nitride dispersion liquid and the polytetrafluoroethylene micro-powder form a double protection system of physical blocking and structural supporting, so that interlayer bonding force is strengthened, interlayer gaps are reduced, and a moisture invasion path is blocked. The preparation method comprises the steps of raw material pretreatment, conductor cleaning and drying, insulating layer extrusion, plasma activation, double-layer co-extrusion and finished product drying. The cable solves the problem that a multi-layer sheath of an existing cable is prone to frost heaving cracking due to water infiltration, the frost heaving damage resistance is remarkably improved, the cable is suitable for the high-cold and high-humidity environment, and stable power transmission is guaranteed.

The invention relates to a positioning unit (12) and a method for establishing an electrically conductive connection between a stationary charging station (10) and a vehicle (24), in particular an electric bus or the like, a contact device (15) having an electric charging contact (19) of the positioning unit being movable in relation to a charging-contact surface (21) and being contactable therewith by means of the positioning unit, the positioning unit having a positioning device (13) and a drive device (14) for driving the positioning device, the charging contact being able to be positioned between a contact position (18) for transmitting power and a retracted position for interrupting power transmission by means of the positioning device, the positioning unit comprising a cover device (25) having an apron (26), the apron surrounding at least sections, preferably the entirety of, the contact device and being movable towards the contact position.

The invention discloses a provincial and regional power transmission network cooperative control method, system and device and a medium, and relates to the technical field of power transmission, comprising the steps of monitoring a network in real time, identifying fault nodes and analyzing propagation, evaluating an influence range and resource availability, optimizing standby resource scheduling, and generating a calling priority in combination with load balancing. Cross-level permission allocation is adjusted through load difference analysis, a standby path is analyzed to determine a convergence acceleration sequence, real-time flow and sequence are combined, flow is reallocated to balance loads, resource scheduling parameters are dynamically adjusted, a resource calling and path switching sequence is iteratively optimized, and historical data feedback is utilized to realize resource scheduling. And generating a final resource allocation and path switching scheme. According to the method, a provincial and regional power transmission network cooperative control closed loop is constructed, the fault recovery speed, the resource utilization efficiency and the system toughness are improved, and the problems of response lag, resource waste and insufficient adaptability of a traditional method are effectively solved.

A vehicle charging system for an electric vehicle includes a housing having a mating end for mating with a charging component and a charging terminal held by the housing connected to a power conductor to form a power transmission line. The vehicle charging system includes a charging controller for controlling vehicle charging along the power transmission line. The vehicle charging system includes a charging sensor assembly coupled to the charging controller monitoring charging status of the vehicle charging system and generating a charging output signal. The charging sensor assembly detects an arc signature from an arc event and generates an arc output signal. Based on the arc output signal, the charging controller generates a primary control output to perform a primary protective action including shutting down the charging operation and generates a secondary control output to perform a secondary protective action.

Disclosed is a customizable decorative tree, a customizable decorative tree is provided, which includes a trunk, a base, and a top section. The trunk is formed from a plurality of individual tree sections that are designed for selective sectional assembly and disassembly. Adjacent tree sections are connected using a shared mechanical connector and a corresponding electrical connector. This integrated system facilitates both robust structural connection and the simultaneous transmission of electrical power through the assembled trunk and base. The tree sections may have varying heights and diameters, allowing a user to customize the trunk to achieve a natural appearance or a unique style. By integrating the electrical power transmission within the structure of the trunk, the design eliminates the need for external wiring, thereby enhancing safety and aesthetics.

A wireless power transmission system includes an input stabilization system, a controller, an amplifier, and an antenna. The input power stabilization system includes a proportional integral (PI) controller and is configured to receive an input power from an external power source and generate a stabilized direct current (DC) power based on a desired input power. The controller is configured to generate a driving signal for alternating current (AC) wireless signals, the AC wireless signals including wireless power signals. The amplifier is configured to (i) receive the stabilized DC power and antenna driving signals, (ii) invert the stabilized DC power based on the driving signals to generate alternating current (AC) wireless signals. The antenna is configured to transmit the AC wireless signals when driven by the amplifier.

A base station for a UAV includes a base and a roof assembly movably coupled to the base and movable between a closed position, in which the roof assembly is configured to enclose a landing platform, and an open position, in which the landing platform is unobstructed by the roof assembly. The base station further includes a stand that includes a first leg, a second leg, a frame extending between the first leg and the second leg, and a spreader plate supported by at least one of the first leg and the second leg, wherein the spreader plate is configured to support the base. The stand is configured to support one or more of power transmission and data transmission to the base station via the stand.

A multifunctional integrated interface for on-orbit assembly of modular space facilities belongs to the technical field of aerospace. A support structure is connected between an upper cover plate and a fixed base and constitutes a circular cavity structure, a driving ring is drivingly connected with a pin ring and can drive the pin ring to move up and down, the pin ring is used for realizing alignment positioning of the interface, the driving ring and the fixed ring are matched through a coupling pin and can drive a coupling ring to move up and down, the coupling ring is used for realizing locking function of the interface, a rotary base is drivingly connected with the driving ring at a lower end, a plurality of electric heating components are connected with the rotary base at an upper end and pass through the fixed ring, the driving ring drives the plurality of electric heating components to move up and down through the rotary base, and the plurality of electric heating components are used for realizing data transmission and power transmission function in cooperation with a counter interface. The interface has mechanical locking, data transmission, power transmission and heat exchange functions, and can meet on-orbit working requirements of the modular space structure.

The invention discloses a fluid switching module and an electrical connection product. The fluid transfer module includes a housing. The housing includes: a housing body defining an inner cavity for accommodating a cooling fluid; the first matching joint is formed on the outer side of the shell main body and is communicated with the inner cavity; and the second matching joint is formed on the outer side of the shell main body and is communicated with the inner cavity. The first matching joint is used for being matched and connected with a pipe joint on an insulation cap of a power transmission piece, and the second matching joint is used for being matched and connected with a connecting pipe of a cooling loop, so that a cooling channel in the power transmission piece can be connected to the cooling loop through the fluid switching module. In the invention, the fluid switching module can conveniently and quickly connect the cooling passage of the power transmission piece to the cooling loop, and the use is very convenient.

The invention relates to a power data hybrid encryption transmission method, system and device, and a readable storage medium. The method comprises the following steps: S1, encrypting a power data plaintext by using a session key to obtain a ciphertext; s2, cutting the ciphertext into a plurality of sections of sub-ciphertexts, combining the sub-ciphertexts with unique random numbers to obtain a plurality of combinations of the sub-ciphertexts and the random numbers, and combining the random numbers to obtain a random number group; randomly sorting the plurality of sub-ciphertexts and random number combinations to obtain a random ciphertext array; s3, encrypting the session key and the random array, and performing digital signature on the random ciphertext array; s4, transmitting the encrypted random array, the session key, the random ciphertext array and the digital signature to a receiver in a parallel communication mode; s5, the receiver verifies and decrypts for many times to obtain the electric power data, the problem that data safety and data transmission efficiency cannot be considered in the existing electric power transmission process is solved, the data transmission safety is improved, and it is ensured that the transmission speed cannot be greatly reduced.

A method for automatic power negotiation for electric vehicle-to-vehicle charge transfer, includes connecting a donor electric vehicle to a receiver electric vehicle via a charging cable of a charging cable system and receiving from a control box of the charging cable system, an initial power setting for the donor electric vehicle. The method also includes determining if the initial power setting has a non-zero value and if the initial power setting has a non-zero value, determining if the initial power setting is acceptable by the donor electric vehicle. The method further includes if the initial power setting is acceptable by the donor electric vehicle, repeatedly increasing the initial power setting to a higher power setting until a maximum power setting is determined and transferring an electric charge from the donor electric vehicle to the receiver electric vehicle along the charging cable based on the maximum power setting.

The invention discloses a cross-linked polyethylene insulated fire-resistant flame-retardant power cable, relates to the technical field of power cables, and solves the problems that a power cable in the prior art is poor in sheath wear resistance, poor in flame retardant property and easy to degrade in insulating property. Comprising a cable core base layer, the cable core base layer comprises a conductor layer, the conductor layer comprises a plurality of conductors distributed in an extending mode, and each conductor is formed by twisting oxygen-free copper filaments; the insulating layer wraps the conductor layer, and the insulating layer is made of a cross-linked polyethylene material; the cable also comprises a shielding structure layer, the shielding structure layer comprises a conductor shielding layer and an insulation shielding layer, and the conductor shielding layer wraps each conductor and is used as an inner shielding layer. According to the design of the power cable, the XLPE power cable can work under the designed field intensity for a long time, and also has high reliability, low partial discharge and excellent fire-resistant and flame-retardant expansion capability, so that the stability of power transmission is ensured.

A system for transferring power from a power source to a receiver.

The invention discloses a power transmission member and an electrical connection assembly. The power transmission piece comprises a first metal bar which is provided with a first connecting end used for being electrically connected with a first conductive part; the second metal bar is provided with a second connecting end used for being electrically connected with a second conductive part; and the first metal bar and the second metal bar are wrapped in the insulator and are electrically isolated by the insulator. The first connecting end and the second connecting end are wrapped in the insulator and do not extend out of the insulator. In the invention, the power transmission piece is simultaneously provided with a plurality of metal bars which can be electrically connected with a plurality of conductive parts respectively, so that the electric connection operation can be simplified, and the size and the cost can be reduced.

A method for transmitting electrical power to a remote location. A power cell is charged and then transported to a distal location where it is installed into a battery system. The battery system has multiple sets of power cells and utilizes a first set before switching to a second set. When the first set is depleted, it is removed and transported to a charging station for recharging.

A wireless power transfer device includes: a power transmitting resonant circuit including a power transmitting coil and a power transmitting capacitor; a switching circuit switching a state of the power transmitting resonant circuit between a resonant state and a non-resonant state; and a determination circuit determining whether a facing state in which the power transmitting coil faces the power receiving coil or a non-facing state in which the power transmitting coil does not face the power receiving coil is occurring. After determining that either one of the non-facing state and the facing state transitions to the other one, the switching circuit performs switching process to switch from either one of the non-resonant state and the resonant state to the other one within a voltage zero-crossing range including a voltage zero-crossing point and a current zero-crossing range including a current zero-crossing point of the power transmitting coil or power transmitting capacitor.

A system includes a control unit configured to select, from among a plurality of vehicles, a vehicle to be put on standby in a state where a power supply state is turned on to be able to provide a power resource to a power network, and perform control to bring the selected vehicle into a state where the power resource is able to be provided to the power network, and to cause another vehicle to sleep. The control unit is configured to sequentially select a vehicle, which is to be put on standby in a state where the power resource is able to be provided in order to provide a primary adjustment force to the power network, from among a plurality of vehicles belonging to the same group of groups divided by estimating an amount of power resource which is able to be provided to the power network.

A vehicle charging system for an electric vehicle includes charging terminals held in a housing being connected to corresponding power conductors to form power transmission lines. The vehicle charging system includes a charging controller for controlling vehicle charging along the power transmission lines. The vehicle charging system includes an arc detection antenna coupled to the charging controller. The arc detection antenna is positioned proximate to the power transmission lines for detecting arc signatures along the power transmission lines from an arc event. The arc detection antenna transmits an arc output signal to the charging controller based on detection of the arc signature.