167 results about "Electrical network" patented technology

The invention relates to a plug connector component (7) for a multi-part plug connector (8), having - a connection interface (10) for connecting to at least one other compatible plug connector component (9) of the multi-part plug connector (8); - a primary contact region (15) for forming at least part of a primary plug interface (16) for connecting to a corresponding mating plug connector (3, 3') of the multi-part plug connector (8); - a connection region (13) for connecting at least one electrical conductor (6); and - at least one electrical contact element (11), which can be connected to the electrical conductor (6) in the connection region (13) and which extends from the connection region (13) at least into the connection interface (10), the electrical contact element (11) being connectable to a compatible electrical contact element (12) of the compatible plug connector component (9) in the connection interface (10).

The invention discloses a high-efficiency converter for adjusting the voltage of a power grid, and belongs to the technical field of power electronics. The converter comprises a first voltage regulation circuit, a second voltage regulation circuit, a filter circuit, a detection circuit and a control circuit. By detecting the amplitude difference between the power grid voltage and the load voltage, the control circuit automatically switches the Buck working mode or the Boost working mode, and stable alternating current output in a wide input voltage range is achieved. The invention has the advantages of compact structure, high efficiency, fast response, small harmonic wave and the like, and is suitable for industrial and civil occasions with large-range fluctuation and frequent power grid voltage.

The invention discloses a dual-optical-path keyboard with a silica gel elastic piece capable of shielding light. The dual-optical-path keyboard comprises the silica gel elastic piece and an FPC, and a plurality of chips are arranged on the FPC. And the chip is one of a full color control chip, a full load color control chip, a confluence color control chip, a load color control chip and a fantasy color control chip. The light-sensitive element is located under the silica gel elastic piece, the silica gel elastic piece is made of a light-transmitting color material and a light-shading color material, the GRB in the chip is an emission light source, one path of the GRB directly provides illumination for a key cap character, the other path of the GRB directly penetrates through the silica gel elastic piece to provide the emission light source for the light-sensitive element under the silica gel elastic piece, and one light source has two purposes. The invention provides the optical switch keyboard with serial-parallel hot standby, the communication circuit is simple, the reliability is high, a single single-sided FPC (Flexible Printed Circuit) can realize full-key no-impact and GRB indication, a keyboard MCU (Microprogrammed Control Unit) can communicate with the keyboard through a maximum 5PIN electrical network, and the optical switch keyboard can be widely applied to notebook computer production.

The invention provides a measurement completion method, device and equipment serving panoramic transparency of a power distribution network, and the method comprises the steps: constructing a power distribution network graph model integrating a power grid topological structure, electrical parameters and measurement configuration information, carrying out bad data identification and cleaning on the original measurement data uploaded by the acquisition terminal to obtain a real-time measurement data set; for lines, buses, distribution transformers and circuit breakers in a power distribution network, missing electrical measurement values are obtained through classification certainty deduction calculation by using electrical network topology constraints, conservation laws and forward-back substitution load flow calculation so as to realize measurement completion; and performing quality evaluation on the complemented measurement data, and performing closed-loop feedback optimization based on an evaluation result. According to the scheme, high-precision complementation of the missing electrical quantity can be realized by depending on the measurement data acquired in real time, and the data storage and computing resource overhead is reduced.

The invention discloses a power distribution network line loss intelligent sensing and tracing decision-making method and system, and belongs to the technical field of power distribution network operation and management.The power distribution network line loss intelligent sensing and tracing decision-making method comprises the steps that multi-source heterogeneous data are connected, timestamp interpolation is carried out, and data are obtained; associating the position and GIS coordinates of the electrical equipment in the electrical network through the unique identifier of the electrical equipment, and outputting a standardized data mart; a dynamic line loss separation engine calculates total loss according to the standardized data mart and a photovoltaic back-feeding compensation item, dynamically corrects technical line loss through a photovoltaic output coefficient, subdivides a line loss component by using a K-means algorithm, and outputs a line loss component matrix; and calculating a feature vector and inputting the feature vector into the traceability decision tree to trace the line loss abnormal root cause. Time sequence and space dislocation of multi-source heterogeneous data is eliminated through timestamp intelligent interpolation and equipment ID two-dimensional mapping fusion data, accurate decoupling of management line loss and technical line loss is achieved through a corrected dynamic line loss separation engine, and the misjudgment rate of a new energy scene is reduced through a traceability decision tree.

An automated warehouse has a plurality of loading units designed to carry respective articles accommodated in respective storage stations and transferred by a movement device to at least one picking / depositing station, which can be accessed, at least under given operating conditions, in order to retrieve / deposit the articles. At least two loading units are provided with respective refrigerators which communicate with a remote control device to send operating data and / or receive command signals. The loading units transporting the refrigerators are distinct from the latter, are powered to be supplied by an electrical network of the warehouse when they are arranged in corresponding storage stations, and are electrically connected to the respective refrigerators.

Within conventional asset management systems, it is difficult to identify and manage physical assets that require special attention (e.g., transformers in an electrical network) from potentially thousands of physical assets within a target system. Accordingly, the disclosed embodiments provide a recommendation engine that automatically recommends physical assets for special attention based on one or more criteria. In addition, physical assets that are approved for special attention are added to a virtual special attention space that enables a particular subset of physical assets that require special attention to be retrieved in a computationally inexpensive manner and managed within a specialized graphical user interface.

The application discloses a novel vehicle-mounted high-low voltage fusion power supply network, comprising: a modular 48V high-voltage energy storage unit, which is composed of N lithium ion battery packs with a nominal voltage of 48V in series, forms a high-voltage DC bus, and each battery pack is integrated with an independent battery management subsystem; a full-isolation three-port DC / DC converter, whose high-voltage input end is connected to the high-voltage DC bus, has two low-voltage output ends that are electrically isolated from each other and completely isolated from the high-voltage side, wherein the first low-voltage output end is a 12V output end, directly connected to a vehicle 12V electrical network, and the second low-voltage output end is a 48V output end, serving as a medium-voltage distribution bus; through modular high-voltage energy storage, full-isolation multi-port power conversion, intelligent power distribution control and hardware-level redundancy design, the architecture completely cancels the 12V lead-acid storage battery, and realizes efficient, safe and bidirectional flow of energy among multiple voltage domains.

The invention discloses a high-density large-current LED (light-emitting diode) module based on an improved copper substrate circuit, which is characterized in that a traditional single'lane 'is widened into a plurality of'lanes' by additionally arranging a third bonding pad which is not electrically connected with an anode and a cathode at the bottom of a lamp bead and an auxiliary current path which is arranged on a copper substrate and corresponds to the third bonding pad; a low-resistance path is provided for current, and the current capacity, the packaging density, the heat dissipation performance and the welding yield are remarkably improved. Meanwhile, the adjacent welding bosses belonging to the same electrical network are connected through one or more solder paste flowing channels. The solder paste flowing channel is an exposed copper foil channel formed after etching. In the reflow soldering process, molten soldering tin can flow in the boss and the channel system which are communicated with each other to automatically compensate the tin quantity difference on each bonding pad, so that the uniformity of the welding height is realized, and the defects of tombstone standing, deviation, pseudo soldering and the like are effectively prevented.

The application discloses a kind of based on the detection result prediction method of electric network reserve pool, belong to neural network technical field, the method includes: the voltage signal sequence corresponding to historical detection result is passed into the electric network reserve pool based on the input node of multiple type electric characteristic neuron, to map voltage signal sequence into high-dimensional output state matrix;Compared with the dimension increasing method of pure mathematical operation of traditional reserve pool algorithm, this method is completely based on the I-V intrinsic electric characteristic of semiconductor device, for the spontaneous nonlinear behavior of electric network formed by the connection of multiple electric characteristic neurons, it is highly explainable, and it is convenient to physically realize.Further, the output state matrix of electric network reserve pool is dimensioned again, the future detection result is predicted by the fitting of historical detection result, thereby solve the technical problems that extrapolation prediction based on historical data in existing detection technology is difficult to realize.

This product is an electronic circuit board with various sensor circuits for flow rate, temperature, etc., as well as calculation circuits, communication circuits, display circuits, etc., arranged on the substrate surface. The light emission state of light-emitting elements such as LEDs (light-emitting diodes), which are arranged in multiples or singles around the edge of a hole approximately in the center of the substrate, is controlled according to the measured values ​​of the sensor circuits, instructions from communication, the state of the substrate, and the built-in program (see Reference Figures 1-5 for examples of usage). These light-emitting elements are positioned so that they partially protrude from the edge of the hole approximately in the center of the substrate towards the hole side. In addition to mounting circuit components, this electronic circuit board may have patterns such as characters applied to the substrate surface.

The present invention relates to an electric charging system (1) for an electric or hybrid vehicle (2), comprising a charging module (3) which is configured to be connected to a three-phase electrical network (5) and to the vehicle (2), the electric charging system (1) being configured to transmit an alternating electrical current, characterised in that the electric charging system (1) is configured to adapt an electrical power transmitted to the vehicle (2) in each of the phases of the alternating electrical current according to a threshold electrical power that can be supplied by the electrical network (5) and a maximum electrical power that can be supplied to the vehicle (2) in each of the phases. The invention also relates to a method for managing electrical power implemented by such an electric charging system (1).

This utility model relates to recorders of emergency events and processes in electrical networks, specifically to fault location devices on overhead power lines (OPLs). The technical result consists of improving the fault location accuracy by taking into account the actual lengths of the OPL overhead sections. To this end, a unit for determining the actual wave propagation velocity in the damaged section and a wave fault location unit are connected via their additional inputs to the output of a unit for determining the actual length of the OPL overhead sections, the input of which is connected to a wire temperature sensor at the device's installation location.

This invention relates to a temporary overvoltage protection assembly (11) for protecting an electrical network line (139) against temporary overvoltages, comprising a disconnecting device (10, 100) and a lightning arrester (140), wherein the lightning arrester (140) comprises a second terminal (142), the disconnecting device (10, 100) comprises a disconnecting cartridge (26) comprising a first terminal (30) electrically connected to the second terminal (142), and a temporary overvoltage threshold of the disconnecting cartridge (26) is selected with respect to the lightning arrester (140) such that the disconnecting device (10, 100) operates before the lightning arrester (140) reaches a thermal overload.

Housings for tracking devices comprise a body and an electrical network. The body defines a device-receiving region that is configured to selectively receive and retain the tracking device in the body, and a housing battery region that is configured to selectively receive and retain one or more housing batteries. The electrical network is operatively positioned within the body and is configured to electrically couple the one or more housing batteries with the tracking device.

The invention discloses a circuit board, a circuit board assembly and electronic equipment, and belongs to the technical field of electronic products. The electronic board comprises at least one device layout area, at least a first bonding pad group and a second bonding pad group are arranged in the device layout area, the first bonding pad group is used for arranging a first device unit, and the second bonding pad group is used for arranging a second device unit; the first bonding pad group comprises a first metal bonding pad and a second metal bonding pad which are arranged at an interval, the second bonding pad group comprises a third metal bonding pad and a fourth metal bonding pad which are arranged at an interval, the second metal bonding pad and the third metal bonding pad are arranged adjacently, and the second metal bonding pad and the third metal bonding pad are bonding pads of the same electrical network; the solder mask layer is provided with at least one solder mask window, the solder mask windows are in one-to-one correspondence with the metal pads, and at least part of the surfaces of the metal pads are exposed by the solder mask windows; and the solder resist window of the second metal bonding pad and the solder resist window of the third metal bonding pad are mutually connected to form a solder resist through window.

Electrical architecture for an aircraft with thermal / electrical hybrid propulsion, comprising, for each turbine engine: an aeroplane AC electrical network, at least one first electrical machine mechanically coupled to a high-pressure shaft of the turbine engine; at least one second electrical machine mechanically coupled to a low-pressure shaft of the turbine engine; a reversible AC / AC electrical energy conversion module; switch elements; and an electronic system for controlling the conversion module and the switch elements, configured to put the architecture: in at least one so-called “power distribution hybridisation” operating mode corresponding to a first configuration of the switch elements in which the at least one second machine is coupled to the aeroplane network and at least one first machine is coupled to the aeroplane network via the electrical energy conversion module.

The invention relates to an electrical architecture for a vehicle, comprising: at least one non-propulsive electrical network comprising at least one battery (50) and a first generator / motor (23L, 23R) connected to the battery; and at least one propulsion electrical network (10L, 10R) comprising at least one fuel cell (30L, 30R) and a second generator / motor (1L, 1R) electrically connected to the fuel cell. The first generator / motor is mechanically connected to a motion transmission line (40L, 40R) comprising a speed increasing member mechanically connected to the second generator / motor (1L, 1R). The architecture comprises at least one electronic control unit connected to said generator / motor (23L, 23R, 1L, 1R), designed to selectively control them in a start-up mode and a rated mode. The invention also relates to an aircraft comprising such an architecture.

A method of controlling power consumption of an electrical mining and / or construction machine (2) connected to an electrical network (10) is provided, wherein the machine (2) comprises one or more electrical power consuming devices (110, 120). The method comprises the following steps: detecting an event in the network (10) based on measurements, and determining a possible change in the power consumption in the machine (2) based on work cycle thereof. Subsequently, based on the detected event in the electrical network (10) and the possible change in power consumption, a required change in the power consumption in the machine (2) is determined and requested. Based on the requested change in the power consumption in the machine (2), the power consumption in the machine (2) is adjusted. An electrical mining and / or construction machine (2) controlled according to the method is also provided.

The present application relates to the technical field of ripple suppression, and discloses a ripple suppression method and system for a high-voltage electrical network of a vehicle, the method comprising: obtaining a bus voltage ripple waveform under a target operating condition, determining a peak frequency through frequency spectrum analysis; establishing an equivalent impedance model of a high-voltage loop to identify a resonance frequency range; when the peak frequency falls within the resonance frequency range, solving an equivalent inductance increment required by the high-voltage loop under the constraint of a switching frequency characteristic point set and a minimum allowable frequency interval; implementing inductance tuning through equivalent length adjustment of a wire harness or a series inductor device on a high-voltage connection wire harness at a front drive and a rear drive port; re-measuring a ripple index after tuning and comparing it with a threshold value, and if the ripple index does not meet the threshold value, updating the inductance increment and repeating the tuning process. Through frequency domain feature extraction, impedance modeling and frequency avoidance constraint, the present application improves the adaptability and consistency of ripple suppression under different conditions and parameter conditions.

An apparatus and method are provided for adjusting an electrical configuration of a plurality of components of an electrical network associated with a vehicle in order to tune electrical characteristics of the electrical network to continuously match a dynamically changing desired mode of operation of the electrical network associated with the vehicle.

The invention relates to a method for extracting the power consumption of an individual device within a set of devices (E1, E2, E3,..., En), the method comprising transforming a stream of measurements of an overall power consumption into a time series, and dividing (S1) the time series into a set of sequences, and then, for each sequence, the steps of: - generating (S4) a positional encoding matrix (MEP); - extracting (S5) features from the sequence to form a feature matrix (MF); - projecting (S6) statistical metrics into a statistics vector (MS); - concatenating (S7) these various elements (MEP, MF, MS) to form an input matrix (ME) provided to a transformation neural network designed to infer (S8) a time sequence corresponding to the individual device.

The application provides a simulation method and device for the moisture aging electrical performance of a zinc oxide varistor, comprising: establishing a grain boundary micro-topology structure of the zinc oxide varistor, the grain boundary micro-topology structure comprising a plurality of conductive grains and grain boundaries between adjacent grains; establishing corresponding equivalent branches for the grain boundaries, mapping the grain boundary micro-topology structure into an electrical network model composed of a plurality of conductive nodes and equivalent branches; determining physical parameters representing moisture degradation according to a moisture aging test of the zinc oxide varistor, and updating the electrical network model by adjusting the physical parameters while keeping the grain boundary micro-topology structure unchanged to obtain the voltage-current characteristic curve and micro-current distribution under the corresponding moisture state. The application realizes quantitative correlation between the moisture degradation state and the micro-grain boundary electrical characteristics, thereby realizing high-precision simulation of the voltage-current characteristic curve and micro-current distribution under the corresponding moisture state, and significantly improving the physical authenticity of the simulation results.

The invention relates to a hybrid electrical system (8) for supplying electrical equipment of an aircraft with power from a turbine engine (1) comprising an HP shaft (7) and an LP shaft (3), the system (8) comprising a control unit (20), two electric machines (9, 10), each with two windings, and two electrical distribution control units (12) connected at output to a high-voltage DC electrical network (16) and to electrical loads (14), wherein one of the machines (9) is connected to the HP shaft (7) and the other machine (10) is connected to the LP shaft (3). Additionally, for each control unit (12), a first bidirectional DC-AC converter (13) is connected between a winding of the first machine (9) and the control unit (12), and a second bidirectional DC-AC converter (15) is connected between a winding of the second machine (10) and the control unit (12). For each control unit (12), it comprises a directly connected high-voltage DC battery (17), the control unit (20) controlling the two converters (13, 15) so as to keep a voltage quality of the network (16) within a voltage specification and control power sharing between all sources in order to carry out hybridization functions.

To update an industrial automation device, the industrial automation device may include electronic part-powered unit for connecting wirelessly to a low-power wide area network, the electronic part-powered unit including first identification information in the low-power wide area network and being arranged at least to receive data addressed to the first identification information and store the data received. The industrial automation device may also include a control unit for updating, in response to connecting the industrial automation device to the electrical network, one or more features in the industrial automation device by the data received.

The invention relates to the technical field of automobiles, in particular to a fault processing method and device for a high-voltage system and a vehicle, and the method comprises the steps: obtaining the duration of a fault signal of a high-voltage interlocking loop; the current fault type of the high-voltage interlocking loop is recognized according to the duration, the current fault type is an instantaneous fault or a steady-time fault, and when the current fault type is the instantaneous fault, the current voltage change value and the current current change value of the high-voltage interlocking loop are obtained; and when the transient fault is judged to be an effective fault or the current fault type is a stable fault according to the current voltage change value or the current current change value, determining a fault function threshold from a plurality of function domains, and isolating the fault function threshold. Therefore, the reporting frequency of the interlocking fault is reduced, the fault position can be quickly isolated from the high-voltage electrical network, the normal use of other high-voltage system functions is not influenced, and the safety of the vehicle is improved.

A method for extracting the power consumption of an individual piece of equipment within a set of equipment (E1, E2, E3, …, En), comprising transforming a stream of measurements of overall power consumption into a time series, and dividing this series (S1) into a set of sequences. Then, for each sequence, the following steps are performed: generation (S4) of a positional encoding matrix (PEM); extraction (S5) of features from the sequence to form a feature matrix (FM); projection (S6) of statistical metrics into a statistics vector (SM); and concatenation (S7) of these different elements (PEM, FM, SM) to form an input matrix (IM) provided to a transformation neural network designed to infer (S8) a time sequence corresponding to the individual piece of equipment. Figure for the abstract: Fig. 1

A chip, a manufacturing and mounting method thereof, and a printed circuit board preform, the chip comprising: a body having opposite first and second sides; a package frame located on the first side of the body and electrically connected with the body, an exposed pattern on the side of the package frame away from the body matching a target pattern, the target pattern comprising pad positions of pads on a target printed circuit board and a layout of an electrical network; wherein the chip comprises a leadless chip, and the target pattern is designed for a leaded chip. Through the scheme, the leadless chip can be compatible with the PCB board designed for the leaded chip, and the versatility of the chip is improved.

Method for implementing a power supply system for a downstream circuit of an electrical network using a voltage source type converter having at least one half-arm comprising at least one semiconductor switch Txy and having at least one protection circuit comprising one or more power protection components, which includes: - as a function of a maximum thermal stress I2·tmax that the converter can withstand, an estimated short-circuit current of the network flowing in said half-arm as a function of time Icc(t) and an estimated short-circuit duration tcc for said downstream circuit, - a dimensioning of said at least one power protection component of the protection circuit to withstand a portion K·Iccmax of the peak short-circuit current Iccmax such that I2·t converter remains less than I2·tmax throughout the entire duration tcc of the short circuit, - the calculation of a resistance ratio between a first resistance R1x,series resistance of said half-arm and a second resistance R2x, series resistance of said protection circuit, said protection circuit being connected in parallel with said half-arm, such that for the short-circuit current value Iccmax, the short-circuit current through said half-arm is limited to the maximum acceptable value (1-K)·Iccmax for said at least one semiconductor switch, the additional portion of short-circuit current K·Iccmax through said protection circuit, - the introduction in said half-arm of a balancing resistance such that the sum of the balancing resistance of a connecting resistance of said half-arm and a conduction resistance of said at least one semiconductor switch of said half-arm divided by the sum of the connecting resistance of said protection circuit and the conduction resistance of said at least one protection component is equal to the ratio R1x / R2x. Figure 2A,

The application relates to the field of transformers, in particular to a distribution transformer for power grids, which comprises a transformer body and a base fixedly installed at the lower end of the transformer body, the end of the base is embedded with a turnover shaft, the outer surface of the turnover shaft is rotationally installed with a frame seat, the upper end of the frame seat is embedded with a fixing frame, the outer surface of the fixing frame is slidingly installed with a fixing sleeve, the front end of the fixing sleeve extends with a connecting frame, the end of the connecting frame and the end of the fixing frame are fixedly installed with arc-shaped clamping seats, the two arc-shaped clamping seats are symmetrically arranged, the front end and the rear end of the arc-shaped clamping seat extend with angle clamping seats, and the rear end of the fixing sleeve is elastically installed with a fixing column. The application improves the installation efficiency, facilitates use, can flexibly adapt to the installation of square poles or round poles, meets the use requirement, and ensures that the transformer does not fall after installation.