492 results about "Electrical load" patented technology

The invention discloses an automobile generator self-adaptive excitation control method based on load prediction, and relates to the technical field of automobile electrical control, and the method comprises the following steps: injecting a micro-amplitude identification pulse into a whole vehicle electrical system, capturing the dynamic response of an electrical load, building a load transition curvature map, marking a high-risk time window, and generating a buffer time slot; and in the buffer time slot, constructing a prediction model fusing time domain extrapolation calculation and frequency domain envelope regression, and outputting collaborative confidence with credibility. A load transition curvature map is constructed to identify a high-risk window, a time domain and a frequency domain are fused to predict output confidence, excitation current is guided to form an anti-shake track, and a dynamic adjustment path is generated by combining start-stop broadening of high-power equipment and voltage second-order derivative identification. And finally, a slew rate self-adaptive strategy is introduced at a chip end to reduce peak impact, power supply and chip cooperative protection is realized, and system robustness and intelligent driving electrical safety are improved.

The invention discloses an energy control method and device for a flying vehicle, electronic equipment and a readable storage medium. A solar cell layer, a heat insulation layer and a thermoelectric power generation layer are sequentially integrated on the surface of the flying vehicle from top to bottom, and the method comprises the steps of obtaining first electric energy converted by the solar cell layer in response to the fact that the flying vehicle is located in a light environment, and obtaining second electric energy converted by the heat insulation layer in response to the fact that the temperature difference between the flying vehicle and the external environment is larger than a first preset temperature difference threshold value; acquiring second electric energy converted by the thermoelectric power generation layer; performing voltage conversion on the first electric energy to obtain first target electric energy, and performing voltage conversion on the second electric energy to obtain second target electric energy; charging a battery of the flying vehicle based on the first target electric energy and the second target electric energy; the electrical energy stored in the battery is distributed to the electrical load based on an energy consumption demand of the electrical load of the flying vehicle. The technical problem that the energy source of the flying vehicle is single is solved.

The invention discloses an electrical load analysis method and system based on multi-source data fusion. The method comprises the steps of obtaining load data and a meteorological data sequence of a target area; carrying out high-fidelity interpolation on the load missing data by adopting a strategy of combining form matching and meteorological verification; adaptively splitting the complete load sequence into a plurality of internally stable load data subsequences based on a preset change rate threshold; calculating a time weighted average value of the meteorological data corresponding to each sub-sequence as target meteorological data; performing two-stage clustering according to the data quantity and the target meteorological data to form a homogeneous load sub-sequence set; a representative sub-sequence with the meteorological closest to the central value is extracted from each set and input into the load analysis model to obtain a reference result; and efficiently deriving the reference result to all other subsequences in the set according to the meteorological difference by using a preset load correction coefficient. According to the method, on the premise of ensuring the analysis precision, the processing efficiency and the result consistency of the mass load data are remarkably improved.

Aspects of the present disclosure are directed to systems, devices, methods, and computer-readable storage medium for adaptive / dynamic thermal management of an electrical power system having variable electric loads, and components thereof. Thermal management may be driven at least partially by predicted / modeled thermal performance of the component to be managed, which may be calculated or modified using direct or indirect measurements. Embodiments may include adaptive thermal management of at least one of an energy storage system and an electric energy supply. Applications of this disclosure may include adaptive thermal management method for electric vehicles and non-mobility applications, particularly having variable electrical loads, which may impact performance or life of the application.

A light emitting diode (LED) driving system comprises at least one linear current driver configured to regulate current to a plurality of LEDs in a multi-spectral application independently of an electrical load affected by voltage fluctuations across the LEDs; and a programmable input configured to receive a current setpoint signal from a digital-to-analog converter (DAC), which defines a target current through the LEDs. The LED driving system further comprises a programmable voltage regulator configured to output a supply voltage to the least one linear current driver that includes a saturation voltage sufficient for the at least one linear current driver to regulate the current delivered to the plurality of LEDs.

Techniques for supplying power to an electrical load include electrically coupling a power supply system to an electrical load. The power supply system includes a chemical energy sub-system including a fuel cell and a fuel storage assembly that stores a fuel, where the fuel cell is configured to generate a first electrical energy output at a first power output; an electrochemical energy sub-system including an energy storage device configured to generate a second electrical energy output at a second power output; and a power control unit electrically coupled to the chemical energy sub-system and the electrochemical energy sub-system and electrically coupled to the electrical load. The method includes operating the power control unit to provide the first electrical energy output or the second electrical energy output to the electrical load.

An apparatus of a vehicle may comprise a first DC-DC converter configured to convert an input voltage into a first voltage, a first power distributor configured to supply the first voltage to at least one first electrical load, a second DC-DC converter configured to convert the input voltage into a second voltage, a second power distributor configured to supply the second voltage to at least one second electrical load, and a bidirectional converter configured to convert power between power associated with the first low-voltage and power associated with the second low-voltage based on a power conversion request signal generated by one power distributor and provide the converted power to the other power distributor. Each power distributor is configured to determine a spare current amount and transmit the power conversion request signal based on a failure in the other DC-DC converter.

The invention provides an energy storage optimization scheduling method and system under microgrid priority fusion constraint, and the method comprises the steps: S1, carrying out the reading and preprocessing of multi-source data, carrying out the unified time axis of historical photovoltaic output, user load, future weather, electricity price, demand unit price, and completing the missing value interpolation and abnormal value elimination, and forming a time series data set; s2, setting decision variables, namely charging power, discharging power, maximum charging power, maximum discharging power, energy storage equipment capacity, commercial power purchase unit price and demand unit price; s3, the overall income is maximized under the specified priority, and the expenditure is reduced; s4, establishing a priority constraint, an energy storage hardware constraint, an electrical load constraint and other constraint conditions, and avoiding target scheduling conflicts according to the corresponding constraint conditions; s5, carrying out two-stage MINLP rapid solution, and searching a feasible solution in a short time by using a rapid exploration method; and deep optimization is carried out through a fine mode.

A control device for controlling power delivered to an electrical load may comprise a faceplate assembly, a control module assembly, and an antenna structure defining an antenna. The faceplate assembly may include a faceplate that has a front surface and an opposed rear surface, and defines an edge at an outer periphery of the front surface. The faceplate assembly may have a user interface provided at the front surface of the faceplate. The control module assembly may comprise a control module that is responsive to the user interface of the faceplate assembly. The antenna defined by the antenna structure may be electrically coupled to a wireless communication circuit of the control module via a coaxial cable. The antenna structure may be positioned adjacent to the edge of the faceplate, for example, adjacent to a notch in a rim that extends from a rear surface of the faceplate.

The invention discloses a charging pile intelligent peak-valley period adjustment charging energy storage system and method, and relates to the field of charging piles. Comprising a charging pile region time-phased electrical load presetting module, a multi-power-supply-mode dynamic identification and division module, a to-be-charged vehicle demand analysis module, an execution charging queue intelligent scheduling module, an adjacent pile cooperative monitoring recommendation module and an interaction management platform. A charging pile group power supply mode rule base in peak, valley and tip three-level dynamic time periods is constructed, real-time analysis is performed on demands of to-be-charged vehicles in a charging pile group, an emergency charging demand identification and priority response mechanism is performed, the interiors of the tip and peak time periods are screened, the vehicle demands are responded preferentially, and through power supply load uniform distribution and a basic guarantee charging strategy, the charging pile group power supply mode rule base is established. The charging pile group can serve more low-electric-quantity vehicles in the same time period, meanwhile, the intelligent recommendation function guides the user to the adjacent charging pile with the low load, and the service fairness and the user satisfaction degree are improved.

The Electric Vehicle Supply Equipment (EVSE) described herein is designed for Vehicle-to-Load (V2L) power transfer, enabling the delivery of electrical power from an electric vehicle to an external electrical load. The EVSE includes an output connector for connecting to a vehicle connector via an output cord, an electronic controller, and a power supply. The power supply is capable of receiving a direct current (DC) control pilot signal transmitted through the vehicle connector via the output connector and supplying DC electrical power to the electronic controller based on the received control pilot signal. This innovative EVSE system facilitates efficient and controlled power transfer between electric vehicles and external loads, enhancing the versatility and functionality of electric vehicle charging infrastructure.

A vehicle includes a chassis, a tractive element coupled to the chassis, a cab coupled to the chassis and configured to support an operator, a body coupled to the chassis and offset longitudinally rearward from the cab, such that a volume is defined between the cab and the body, an electric motor configured to drive the tractive element to propel the vehicle, a secondary electrical load, a battery configured to supply electrical energy, and a power distribution unit configured to direct the electrical energy from the battery to the electric motor and the secondary electrical load. The power distribution unit is positioned in the volume defined between the cab and the body.

A remote control device may control electrical loads and / or load control devices of a load control system without accessing electrical wiring. The remote control device may be configured to be mounted over an installed mechanical switch having a paddle actuator and may include a base and a control unit that is configured to be removably attached to the base. The base may include a frame, a clamp arm, a screw, and / or a sleeve. The clamp arm may be configured to secure the base to a protruding portion of the paddle actuator. The clamp arm may be attached to the frame at a pivot joint. The clamp arm may be configured to pivot about the pivot joint. The pivot joint may be located proximate to an endpoint or a midpoint of the frame.

A system (100) for identifying electrical load types for a variety of different electrical loads (102, 103, 104), wherein the system comprises: a hierarchical load attribute database (108) comprising a plurality of layers (110), wherein a (112) of the layers contains a plurality of different load categories, wherein a first layer (112, L1) of the plurality of layers contains the different load categories; wherein a second layer (L2) of the plurality of layers contains a plurality of different load subcategories for each of the different load categories; and wherein a third layer (L3) of the plurality of layers contains the different electrical load types for the different load subcategories; and a processor (114) which is constructed (116) to: Acquiring a voltage waveform and a current waveform for a corresponding one of the different electrical loads; Mapping a voltage-current trajectory onto a grid containing a plurality of cells, each of which has a binary value of zero or One is assigned based on whether the voltage-current trajectory passes through each of the cells; Extracting a variety of different properties from the depicted grid of cells as a graphical signature of the corresponding one of the different electrical loads; Deriving a category of the corresponding one of the different electrical loads from the hierarchical load attribute database; and Identifying one of a variety of different electrical load types for the corresponding one of the different electrical loads, where the voltage waveform and the current waveform each represent a total number of K data points of the form (v k , i k ) contained, where: k = 1,...,K; where v k and i k correspondingly, a voltage and a current value of a sampled data point k; where maximum and minimum values ​​of the voltage waveform and the current waveform are calculated from: v max = max v k , V min = min v k , i max = max i k , i min = min i k , v 0 = 1 2 ( v max + v min ) , and i 0 = 1 2 ( i max + i min ) ; where v0 and i0 are both averages of the corresponding maximum and minimum values ​​that form the central points of the grid of cells, where Δ defines a size of the grid; where dv = v max − v 0 Δ di = i max − i 0 Δ ; the processor is further configured to generate two sequences from the voltage waveform and the current waveform as: { v 0 − dv ⋅ Δ , v 0 − dv ⋅ ( Δ − 1 ) , … , v 0 , … , v 0 + dv ⋅ ( Δ − 1 ) , v 0 + dv ⋅ Δ} and { i 0 − di ⋅ Δ , i 0 − di ⋅ ( Δ − 1 ) , … , i 0 , … , i 0 + di ⋅ ( Δ − 1 ) , i 0 + di ⋅ Δ} where each of the two sequences has N = 2Δ+1 elements; where the grid of cells includes a first axis having N cells and a second axis having N cells; and where each of the cells has a position value (v0 + dv · x,i0 + di · y) and a binary model value B x,y is assigned, which is initialized to 0.

A wireless power system, preferably including a set of one or more substrates and a wireless power receiver, wherein the wireless power receiver preferably includes one or more radio frequency (RF) impedance sheets. A method of operation for a wireless power system, preferably including receiving power wirelessly and / or delivering power to one or more electrical loads, and optionally include deploying the system and / or stowing the system S240.

Electrical protection device, distribution assembly, and associated electrical switchgear. This electrical protection device (300), configured to electrically connect an electrical load (M) to an electrical power source (S), includes incoming terminals (302), outgoing terminals (304), and switching means (310) actuated by a bistable actuator (324). A microcontroller (320) is provided to generate a fault signal (S320), which triggers the actuator, and an output signal (S321), which is different from the fault signal. The protection device includes a supervisory circuit (500), which is interposed between the microcontroller (320) and the actuator (324) and which includes an oscillator (510) configured to generate a periodic signal (S510).The monitoring circuit is configured to generate a trigger signal (S324) when, alternatively, the output signal (S321) of the microcontroller (320) is absent, or the periodic signal (S510) of the oscillator (510) is absent, or when a fault signal (S320) is emitted. See Figure 6 for abbreviations.

The invention relates to an on-board electrical system of a rail vehicle, wherein the on-board electrical system comprises at least one vehicle-wide DC busbar, at least one on-board electrical system battery which is designed to supply the DC busbar, a plurality of distributed electrical loads, a plurality of load circuits which connect the loads to the DC busbar, and a plurality of controlled electronic switching and protection devices which are designed to switch and protect the load circuits, and wherein the on-board electrical system is characterised in that an adaptation device is arranged upstream and / or downstream of at least one of the electronic switching and protection devices, wherein the adaptation device comprises at least one passive electrical component which limits a rate of rise of current.

The invention relates to a circuit unit for controlling load currents of an electrical load, comprising a circuit logic, at least n switch elements with n≥2, resistance elements with m≥1, wherein the resistance elements can be bridged by means of the switch elements, wherein the circuit logic is designed such that it increases the load current in steps to a final value by means of an activation sequence of the switch elements, and a method for controlling load currents of an electrical load.

A heat and electricity storage device utilizing thermoelectric power generation belongs to the technical field of electricity storage equipment and comprises a PLC (programmable logic controller), raft equipment, a temperature detection module, a heat storage module, a heat preservation module, an inner shell, an outer shell, a power generation module, fin-shaped radiating fins and an electric heater. The multiple heat preservation modules are installed in the inner shell, the upper end heat preservation module is provided with a heat conduction groove, raft equipment is installed at the two side ends of the heat conduction groove, and the multiple heat storage modules are installed on the inner sides of the heat preservation modules respectively. The electric heaters are mounted in the plurality of heat storage modules; the inner shell is installed in the outer shell, the power generation modules are installed on the inner side of the outer shell, and the fin-shaped cooling fins are installed on the outer side of the outer shell. The device is relatively simple and compact in structure, low in cost and convenient to use, the electric heater can be switched on in a specific time period to heat the heat storage module, the power generation module can be controlled to supply power to the electrical load in the peak period of power utilization, the speed and effect of acting on the temperature of the heating surface of the thermal power generation module are improved through the fin-shaped cooling fins, and the power generation capacity is relatively improved.

The invention relates to the technical field of building energy saving and intelligent control, and discloses a tropical zero-carbon building operation capacity and energy consumption coupling mechanism and an intelligent regulation and control method, and the method comprises the following steps: S1, building related data collection and preprocessing; s2, constructing a photovoltaic power generation quantity model, constructing an air conditioner refrigeration load and electric power quantification model, and constructing other electric load prediction models; s3, constructing a photovoltaic-air conditioning refrigeration-other electrical load coupling mechanism model; s4, constructing a multi-objective optimization model; and S5, rolling time domain intelligent regulation and control. According to the tropical zero-carbon building operation capacity and energy consumption coupling mechanism and the intelligent regulation and control method, on the premise that only the refrigeration working condition is considered, the photovoltaic power generation power, the air conditioner refrigeration electric power and other electric loads are uniformly incorporated into an electric energy balance equation; the quantitative relation between the power boundary and the power grid electricity purchasing power is clearly described through the power boundary and the power fluctuation penalty term, and a coupling mechanism model which can be directly used for engineering design and simulation is formed.

Connection assembly (100) for establishing an electrical connection between at least one electrical load and an electrical voltage source, comprising at least three terminal bodies (10, 11, 12) and at least three active electrical components or at least three passive electrical components (20, 21, 22), wherein the at least three terminal bodies (10, 11, 12) are provided for connection to at least three outer conductors of the voltage source, characterized by that the at least three connection bodies (10, 11, 12) are inseparably connected without tools to the at least three active electrical components or the at least three passive electrical components (20, 21, 22).

This invention relates to the fields of industrial internet and intelligent sensing technology, and discloses a property equipment full lifecycle management system based on multi-source data fusion. The system synchronously collects mechanical operating condition and power distribution network electrical quality characteristic data, and utilizes an edge computing hub to construct a cascaded judgment logic for a first feature value and a frequency domain interference scalar. When interference exceeds a threshold, the system generates a first control command and an associated first timing marker, forcing the target electrical load to maintain a preset output within a defined time interval. This decouples spectral aliasing in the physical time domain, achieving high-fidelity extraction of the mechanical stator current feature vector and outputting a control signal accordingly. This invention overcomes the problem of signal extraction distortion caused by cross-domain interference in shared power grids, significantly improving the diagnostic accuracy and system resilience of equipment management in complex environments.

A controllable electrical outlet may comprise a resonant loop antenna. The resonant loop antenna may comprise a feed loop electrically coupled to a radio-frequency (RF) communication circuit and a main loop magnetically coupled to the feed loop. The controllable electrical outlet may comprise one or more electrical receptacles configured to receive a plug of a plug-in electrical load and may be configured to control power delivered to the plug-in electrical load in response to an RF signal received via the RF communication circuit. The RF performance of the controllable electrical outlet may be substantially immune to devices plugged into the receptacles (e.g., plugs, power supplies, etc.) due to the operation of the resonant loop antenna. For example, degradation of the RF performance of the controllable electrical outlet may be less when the controllable electrical outlet includes the resonant loop antenna rather than other types of antennas.

The invention relates to the technical field of load prediction, and particularly provides a power distribution network payload ultra-short-term prediction method and device, and the method comprises the steps: enabling historical payload data and meteorological data to serve as the input of a pre-constructed multilayer perceptron-based payload generation and use decoupling model, obtaining historical power utilization load data and photovoltaic output data output by a pre-constructed net load generation and utilization decoupling model based on the multilayer perceptron; taking the historical electrical load data and the photovoltaic output data as inputs of a pre-constructed electrical load data prediction model and a pre-constructed photovoltaic output data prediction model respectively; obtaining electrical load prediction data output by a pre-constructed electrical load data prediction model and photovoltaic output prediction data output by a photovoltaic output data prediction model; and reconstructing the electrical load prediction data and the photovoltaic output prediction data to obtain power distribution network net load prediction data. According to the scheme, high-precision ultra-short-term prediction of the net load of the power distribution network is realized.

This system enables energy management that automatically creates an economically efficient operating schedule for energy storage devices, taking into account electricity procurement costs. [Solution] Customer 5 is equipped with an electrical load 25, a solar power generation device 50, and energy storage devices 20, 30, and is capable of buying and selling electricity to and from the power grid 3. Server 10 creates an operation schedule for the energy storage devices 30, 40 for the next day based on the power procurement unit price for each of several time slots that divide the next day's 24 hours, the predicted power generation amount by the solar cells 50 and the predicted power consumption amount of customer 5 for each of the multiple time slots, and the comparison and determination result of the power procurement unit price and determination threshold in the time slot group that includes the default operating candidate period for the energy storage devices 30, 40 among the multiple time slots. HEMS 20 generates operation commands for the energy storage devices 30, 40 according to the operation schedule created by Server 10.

A device comprising a controllable switch and an NFC circuit is described. According to one embodiment, the controllable switch is configured to connect and disconnect an electrical load from a power supply. The NFC circuit is configured to generate a supply voltage based on a voltage induced in an NFC antenna and, in response to receiving a switch-on command, to use this supply voltage to generate a control signal for the controllable switch, causing it to connect the electrical load to the power supply. The electrical load is configured to control the switch so that it disconnects the electrical load from the power supply.

A method comprises discharging electrical energy from an intermediate circuit comprised in the apparatus, measuring a direct current voltage, and inputting measured values to a parameter estimator for the intermediate circuit. The parameter estimator comprises at least a first parameter and a second parameter whose values are determined based on an equivalent capacitance value of the intermediate circuit, an equivalent resistance value of the intermediate circuit and an electrical load power value of the intermediate circuit, the parameter estimator outputting values for time constant and values for power-to-capacitance ratio of the intermediate circuit. The method further comprises storing values at least temporarily for condition monitoring.

Disclosed is an apparatus for monitoring electrical load in a building. The building has a primary electricity supply that is split into a plurality of individual electrical circuits. The apparatus includes a first sensing circuit configured to sense electrical load in a first electrical circuit of the plurality of individual electrical circuits and an analogue to digital to converter (ADC) configured to measure the electrical load at the first sensing circuit at a sampling rate greater than or equal to 18 kHz.

This utility model relates to the field of thermal protectors, specifically a high-current dual-control delayed miniature thermal protector, comprising an insulating base, an insulating cover, a first pin, a second pin, and a bimetallic strip. The bimetallic strip has a moving contact. The insulating cover is fixed to the insulating base and encloses it. The first and second pins are embedded within the insulating base. The insulating base is characterized by having a conductive plate, a heating wire, and a PTC thermistor mounted on it. The conductive plate has a stationary contact that mates with the moving contact. One end of the heating wire is electrically connected to the conductive plate, and the other end is electrically connected to the second pin. One end of the PTC thermistor is electrically connected to the first pin, and the other end is electrically connected to the conductive plate. When in use, this thermal protector can more promptly disconnect the circuit when the electrical load current in the circuit abnormally increases, effectively protecting the electrical appliances and preventing damage.