2384 results about "Electric coupling" patented technology

A package includes a first die with a compute element and first region, a second die with a compute element and second region, and a bridging element connecting the first and second dies. The bridging element includes interconnect regions for electrical coupling, a first photonic path from the first interconnect region to the second, and a second photonic path in the reverse direction. A photonic transceiver is integrated into the bridging element, with one portion sending and receiving optical signals via the photonic paths, and the other portion located in an AMS block in the first die or second die near the memory and compute elements. The transceiver portions are connected by a short electrical interconnect (less than 2 mm).

A system includes a housing and a first circuit board positioned inside the housing. The housing has a top panel, a bottom panel, a left side panel, a right side panel, a front panel, and a rear panel. The front panel is at an angle relative to the bottom panel in which the angle is in a range from 30 to 150°. The first circuit board has a length, a width, and a thickness, in which the length is at least twice the thickness, the width is at least twice the thickness, and the first circuit board has a first surface defined by the length and the width. The first surface of the first circuit board is at a first angle relative to the bottom panel in which the first angle is in a range from 30 to 150°. The first surface of the first circuit board is substantially parallel to the front panel or at a second angle relative to the front panel in which the second angle is less than 60°. The system includes a first data processing module and a first optical interconnect module both electrically coupled to the first circuit board. The optical interconnect module is configured to receive first optical signals from a first optical link, convert the first optical signals to first electrical signals, and transmit the first electrical signals to the first data processing module.

An energy management system can comprise a housing configured to receive energy storage assemblies within an interior region of the housing via one or more openings on a surface of the housing. One or more guide tracks positioned within the interior region can mechanically and electrically couple to the energy storage assemblies. One or more switches can electrically couple the energy storage assemblies in series to increase a voltage provided from energy storage assemblies to an electrical load and can electrically couple the energy storage assemblies in parallel to facilitate charging the energy storage assemblies from an energy source.

The invention discloses an energy storage system state evolution trend prediction method based on multi-source data fusion. The method comprises the steps of terminal voltage, current and temperature time sequence data acquisition, time sequence segmentation normalization, multi-physics field coupling feature construction, trend prediction model construction and training and energy storage system state evolution trend prediction. According to the method, the distinguishing capacity of the model for charging and discharging physical characteristics is improved, meanwhile, the voltage change rate, the multi-dimensional feature vector of the differential internal resistance and the thermal-electric coupling effect and the explicit encoding electric-thermal-resistance coupling relation are constructed, the transient response and the temperature hysteresis effect can be effectively captured, and then the model can be used for analyzing the charging and discharging physical characteristics. A degradation-aware cross-cycle feature extraction and gating mechanism is adopted, short-term fluctuation and long-term trend are adaptively balanced in multi-scale prediction, the prediction conflict problem is relieved, finally, physical constraints based on the electrochemical law and the internal resistance temperature characteristic are embedded in a loss function, it is ensured that the prediction result is accurate in numerical value and conforms to the physical law, and the prediction accuracy is improved. And generation of physically impossible solutions is avoided.

A charging system comprises a local energy storage disposed at a charging site; an electric coupling configured to provide an electrical interconnect between the charging site and an electric vehicle (EV); and one or more controllers configured to: (i) detect a condition related to availability of electrical energy at the charging station, (ii) in response to the detecting of the condition: (a) estimate a number of EVs to which a charge remaining at the local energy storage is to be distributed within a certain time interval, (b) initiate a charging session for transferring electric energy from the local energy storage to the EV, via the electric coupling, and (c) limit an amount of electrical energy in the charging session in view of at least the estimated number of EVs.

The invention relates to the technical field of power equipment state monitoring, in particular to a transformer iron core alternating current and direct current mixed current on-line monitoring method and system based on a magnetoelectric coupling sensor, and the method comprises the steps: monitoring the change of magnetic flux generated by the vibration of an iron core in a transformer in real time through a magnetoelectric coupling sensor array; the magnetic flux change is converted into an original electric signal, the original electric signal is processed, an alternating current signal component and a direct current signal component in the mixed current are extracted, and historical operation data and real-time environment parameters of the alternating current signal component and the direct current signal component are input into a deep recurrent neural network to be trained; and the deep recurrent neural network outputs the enhanced stray current and the direct current signal after the environmental influence is eliminated after iterative training. According to the invention, high-precision prediction of the temperature of the iron core is realized by using a method of combining a deep recurrent neural network and adaptive decomposition; and the neural network is trained by using the dynamic data, so that the dynamic processing capability of the network is enhanced and the operation reliability of the transformer can be effectively improved.

The invention discloses a CPLD-driven IGBT short-circuit current dynamic monitoring method and system, and relates to the technical field of power electronics, and the method comprises the specific steps of S100 real-time data acquisition, S200 dynamic threshold calculation, S300 short-circuit state judgment, S400 rapid protection execution, and S500 fault data recording and uploading. Accurate and prospective judgment of the short circuit state of the IGBT is achieved, two stress parameters including the direct-current bus voltage and the junction temperature serve as independent variables, when the bus voltage rises, the voltage stress borne by the IGBT in the turn-off period is increased, meanwhile, the current peak at the short circuit moment is more remarkable, early warning is conducted in advance by dynamically lowering the threshold value, and therefore the short circuit state of the IGBT is accurately judged. According to the mechanism, the monitoring system does not simply respond to the occurred overcurrent, but can pre-judge the safety boundary of the device under the current working condition, so that intervention is implemented before the current really reaches a dangerous peak value, and a protection blind area under a severe working condition is effectively avoided.

A system includes a housing and a first circuit board positioned inside the housing. The housing has a top panel, a bottom panel, a left side panel, a right side panel, a front panel, and a rear panel. The front panel is at an angle relative to the bottom panel in which the angle is in a range from 30 to 150°. The first circuit board has a length, a width, and a thickness, in which the length is at least twice the thickness, the width is at least twice the thickness, and the first circuit board has a first surface defined by the length and the width. The first surface of the first circuit board is at a first angle relative to the bottom panel in which the first angle is in a range from 30 to 150°. The first surface of the first circuit board is substantially parallel to the front panel or at a second angle relative to the front panel in which the second angle is less than 60°. The system includes a first data processing module and a first optical interconnect module both electrically coupled to the first circuit board. The optical interconnect module is configured to receive first optical signals from a first optical link, convert the first optical signals to first electrical signals, and transmit the first electrical signals to the first data processing module.

The invention relates to the technical field of sensors, in particular to a transformer dynamic magnetic bias current detection method and device based on magnetoelectric coupling sensing, and the detection device composed of a magnetoelectric coupling sensing element, an exciting coil and a rear-end processing circuit is used for measuring direct current magnetic bias current. The working principle of the magnetoelectric coupling sensing element is based on stress coupling between the magnetostrictive material and the piezoelectric material, then an output signal is generated on the piezoelectric material, and the sensitivity is remarkably improved by using the resonance amplification effect of the magnetoelectric coupling sensing element. Non-contact current detection can be realized by detecting the magnetic field generated by the magnetic bias current of the neutral point grounding wire of the transformer, and direct physical contact with power equipment is not needed, so that the safety of the system is improved, and the problem of high installation difficulty of a contact sensor is avoided; high-sensitivity, high-precision, anti-interference and real-time transformer direct-current magnetic bias current monitoring is achieved, and the transformer direct-current magnetic bias current monitoring device has the advantages of being easy to install and deploy and small in size.

The invention discloses a detection method of a high-speed connector and a related device, and the method comprises the steps: carrying out the plugging motion control of the high-speed connector, injecting a pulse sequence carrying a displacement mark into a differential signal pair in the process, and obtaining the initial reflection data containing a plugging displacement-time index; space-time boundary information of a gap coupling section, an initial touch deformation section and a full-insertion steady-state section is analyzed and determined in a segmented mode through reflection characteristics. And generating a mutual excitation pulse pair in the initial touch deformation section, and executing differential sampling processing by using a thermal-electric coupling effect to obtain a thermally induced group delay sequence and a geometrically induced impedance differential sequence. A dynamic zero-reflection anchor point is generated based on double-sequence fusion, and real-time reference plane migration processing is realized to obtain a calibration impedance curve. And repeating the processes of insertion and extraction, generating an elastic difference curve through displacement-time coaxial difference processing of a bidirectional calibration impedance curve, and positioning an irreversible abnormal section of the impedance. According to the method, the plugging transient impedance change can be continuously monitored, and the early failure risk of the high-speed connector can be evaluated in time.

A vehicle having a primary mover, a charging system, multiple electric loads, and a controller. The charging system includes a charge storing device and an alternator. The alternator is configured to convert mechanical energy generated by the prime mover into electrical energy to charge the charge storing device. The multiple electrical loads are electrically coupled to the charging system via a power distribution module. The controller is communicably coupled to the charging system and is configured to receive an indication that an electrical output of the charging system is unable to provide sufficient electrical energy to each electrical load in the electrical loads. The controller is also configured to provide a control signal to the power distribution module in response to the indication. The control signal is configured to cause the power distribution module to decouple at least one of the electrical loads from the charging system.

A wearable electronic device can include a sidewall housing defining an internal volume and a band slot configured to receive a securement band. The sidewall housing can include a radio-frequency (RF)-transparent window defining the band slot, a rear cover coupled to the sidewall housing with the rear cover including metal, an antenna resonator disposed in the internal volume adjacent the RF-transparent window, and a conductor electrically coupling the rear cover to the antenna resonator.

The invention discloses a linear polarization in-band scattering reconfigurable radiation time-sharing regulation array antenna, which belongs to the technical field of antenna engineering, and comprises an antenna unit and a one-to-sixteen power divider, the antenna unit is connected with the one-to-sixteen power divider, and the antenna unit is connected with the one-to-sixteen power divider. The antenna unit comprises a first radiation patch, a first dielectric substrate, a second radiation patch, a second dielectric substrate, a feed coupling branch knot, a feed metal column, a third dielectric substrate, a perforated metal floor and a fourth dielectric substrate, and a first PIN tube, a second PIN tube, a feed transmission line, a direct current bias device, a reflective phase shifter and a low-pass filter are arranged at the bottom of the fourth dielectric substrate; the direct-current bias device is connected with the reflection type phase shifter and the feed transmission line through the low-pass filter, and the feed metal column sequentially penetrates through the third dielectric substrate, the perforated metal floor and the fourth dielectric substrate and is connected with the feed transmission line. According to the invention, the normal radiation efficiency of the antenna can be ensured, and the reconfigurability of antenna scattering can be effectively improved.

Provided is a downhole device, a well system, and a method. The downhole device, in one aspect, includes an electromagnetic assembly, as well as a magnetic target positioned proximate the electromagnetic assembly, wherein one of the magnetic target or the electromagnetic assembly is coupled with a movable feature of the downhole device, the movable feature configured to move to physically couple or physically decouple the electromagnetic assembly and the magnetic target. The downhole device, according to this aspect, further includes a sensor electrically coupled to the electromagnetic assembly, the sensor configured to sense for a change in a DC power parameter powering the electromagnetic assembly as the electromagnetic assembly and magnetic target physically couple to or physically decouple from one another, the sensed change representative of a change of impedance within a coil of the electromagnetic assembly and employable to estimate the status or health of the downhole device.

An automated hand having an arrangement for mounting a digit connector such that the connector can rotate when a force is applied to a digit. The arrangement can include a rigid mount and a resiliently deformable sleeve, with the connector within the sleeve. The automated hand can be compatible with a touchscreen. The automated hand can have a worm drive for rotating a digit, the worm drive including a bearing configured to resist axial loads in both directions. The automated hand can have a thumb with an auxiliary support. A catch can be provided to restrict pivoting of a digit under load. A wrist can be clamped to the hand, can be releasably electrically coupled to the hand, can be locked against rotation, and can include resiliently deformable pieces. A cover can also be provided for an automated hand. The cover can include a knitted body and a structural brace.

The invention relates to the technical field of energy, in particular to a capacity configuration method of an off-grid hydrogen-electricity hybrid energy storage system. The capacity configuration method of the system comprises the following steps: 1, establishing a mathematical function of the off-grid hydrogen-electricity hybrid energy storage system; 2, establishing a target optimization function by taking the lowest total cost of the system as an economical efficiency target and taking the maximum self-power generation rate and the minimum power abandoning rate as operation targets of the hydrogen-electricity coupling direct-current micro-grid system; 3, establishing a capacity configuration constraint function by taking system power balance, thermodynamic balance, grid-connected interaction power balance, equipment capacity upper limit and equipment power upper and lower limits as constraint conditions; and 4, establishing a capacity configuration optimization model of the system based on the mathematical function, the target optimization function and the capacity configuration constraint function of the off-grid hydrogen-electricity hybrid energy storage system, and solving through an NSGA-II algorithm to obtain an optimal capacity configuration scheme. The economical efficiency, stability and efficiency of system operation are considered at the same time, and reasonable capacity configuration of the system is achieved.

The present disclosure provides a separable power strip, and the separable power strip includes a main body connected to a power via a power line and including: a first housing including a first contacting wall and a first peripheral side wall surrounding the first contacting wall, the first contacting wall and the first peripheral side wall defining a first receiving cavity; a first socket interface located in the first contacting wall; and a first electrical outlet assembly connected to the first socket interface and the power line, and received in the receiving cavity; and a separable member separably and electrically coupled to the main body and including: a second housing including a second contacting wall; a second socket interface having a different interface type with the first socket interface; and a conducting pin electrically coupled to the second socket interface and located in the second contacting wall

The invention discloses a simulation and prediction method for an instability phenomenon of a dielectric high-elastic thin shell. The method comprises the following steps: S1, constructing a mechanical-electric coupling constitutive model of a dielectric high-elastic material; s2, developing a numerical analysis method of the nonlinear response of the dielectric high-elastic thin shell; s3, simulating the overall instability phenomenon of the structure under large deformation; and S4, outputting the complex mechanical behavior under the predicted force-electricity coupling effect. Compared with the prior art, the method for simulating and predicting the instability phenomenon of the dielectric high-elastic thin shell has the advantages that the method can be used for capturing the complex shape and geometric change of the dielectric high-elastic thin shell and simulating the complex behavior of the thin shell under the force-electricity coupling effect.

The invention relates to the technical field of vibrator control, in particular to a driving voltage calibration method and device, electronic equipment, a medium and a program product, and is characterized in that residual vibration parameters and driving frequency of a vibrator are acquired, and the residual vibration parameters comprise a quality factor, an electromechanical coupling coefficient and resonance frequency; based on the residual vibration parameter and the driving frequency, the vibration parameter of the vibrator under the corresponding driving frequency can be calculated, and the vibration parameter can comprise one or more of acceleration, speed and displacement of vibration of the vibrator. The comparison result between the determined vibration parameters of the vibrator under different driving frequencies and the preset vibration parameters serving as the reference can be used for calibrating the driving voltage under the corresponding driving frequency, so that the vibrator is driven by the calibrated driving voltage, and the vibration consistency of the vibrator and the reference vibrator can be ensured.

The invention relates to the technical field of comprehensive energy systems, in particular to an optimal scheduling method, device and equipment for a comprehensive energy system and a medium, and the method comprises the steps: carrying out mechanism modeling on a hydrogen fuel cell, and carrying out the quantitative analysis of the variable working condition cogeneration characteristics of the hydrogen fuel cell in a feasible region through a piecewise linearization method; taking the minimum sum of the stepped carbon transaction cost, the energy purchase cost and the wind curtailment cost as a target, and establishing a target function of the integrated energy system optimization scheduling considering the thermoelectric variable working condition characteristics of the hydrogen fuel cell; establishing an optimization scheduling constraint condition considering the thermoelectric coupling hydrogen fuel cell; on the basis of a thermoelectric coupling curve obtained by the mechanism model, constructing a comprehensive energy system scheduling model considering the thermoelectric variable working condition characteristics of the hydrogen fuel cell by using a target function and constraint conditions; and solving the integrated energy system scheduling model to obtain the integrated energy system optimal scheduling method. Efficient integration and utilization of renewable energy sources, hydrogen energy and other clean energy sources are promoted.

An ultrasonic transducer array including a substrate, a membrane overlying the substrate, the membrane configured to allow movement at ultrasonic frequencies, and a plurality of anchors connected to the substrate and connected to the membrane. The membrane includes a piezoelectric layer, a plurality of first electrodes, and a plurality of second electrodes, wherein each ultrasonic transducer of a plurality of ultrasonic transducers includes at least a first electrode and at least a second electrode. The plurality of anchors includes a first anchor including a first electrical connection for electrically coupling at least one first electrode to control circuitry and a second anchor including a second electrical connection for electrically coupling at least one second electrode. The ultrasonic transducer array could be either a two-dimensional array or a one-dimensional array of ultrasonic transducers.

The invention discloses a dynamic correction method for digital twinborn model parameters of line equipment of MPC, which belongs to the technical field of power system automation, and comprises the following steps: acquiring original working condition data through distributed edge nodes, extracting load fluctuation, environmental disturbance and mechanical spectrum key features, forming chaotic feature vectors, and carrying out dynamic correction on the chaotic feature vectors; according to the method, the complex interaction is quantified through the multi-physics field coupling entropy source formula, the equipment state evolution process can be described more accurately, the sensitivity of the system to the initial disturbance is further evaluated through introduction of the Lyapunov index, the potential instability risk is warned in advance, and in the power transformer overheating fault prediction process, the method has the advantages of being high in reliability and high in reliability. According to the method, thermal-electric coupling abnormity can be detected several hours ahead of time, sudden shutdown is avoided, the safety and reliability of equipment operation are remarkably improved, real-time self-adaptive correction of parameters is achieved through double-channel parallel calculation, and the adaptability to complex working conditions is remarkably improved.

The invention proposes an electric drive system (1) comprising an electric storage device (10) having a first and a second battery (11, 12); a controllable multi-phase inverter (20) having a DC connection side (21) and an AC connection side (22); a multi-phase AC electric machine (30) comprising a winding arrangement (31) electrically coupled to the AC connection side (22) of the inverter (20); a connection arrangement (40) comprising electrical connection paths with controllable switches (SW1+, SW1-, SWs, SW2+, SW2-, SW3, SW4, SW5, SW6) for establishing and interrupting electrical connections, for providing a driving mode and a transfer mode of the electric drive system (1).In driving mode, one or both of the first and second batteries (11, 12) are electrically connected to the DC connection side (21) to supply electrical energy from the respective battery or both batteries (11, 12) via the inverter (20) to the electric motor (30) or vice versa. In transfer mode, the first battery (11) is electrically connected to the DC connection side (21), and the second battery (12) is electrically connected to the winding arrangement (31) of the electric motor (30) to transfer electrical energy from the first battery (11) via the inverter (20) and the winding arrangement (31) to the second battery (12) or vice versa. Advantageously, the invention enables battery self-heating as well as demand-based battery balancing. The invention further proposes a corresponding control device and a control method for such a drive system (1).

This disclosure is directed to a circuit that includes a substrate, a target device on the substrate, and an electrostatic discharge (ESD) device electrically coupled to the target device. The ESD device includes an ESD detection circuit electrically coupled to a first reference voltage supply and a second reference voltage supply, an inverter circuit electrically coupled to the ESD detection circuit and configured to trigger in response to an ESD event on the first or second reference voltage supply, a rectifier circuit electrically coupled to the inverter circuit and configured to rectify a current discharged from the inverter circuit, and a transistor electrically coupled to the rectifier circuit and configured to discharge a remaining current passing through the rectifier circuit.

A charger assembly 10 for charging an energy storage unit associated with an elevator is provided. The charger assembly includes a first charger unit 20 mechanically coupled to an elevator column 30. The first charger unit is adapted to tap voltage from a power source. The first charger unit interconnects a first block 40 and a second block 50. The first block includes at least two slots 60 adapted to interlock with at least two projections 70 provided on the second block. The charger assembly also includes a second charger unit 80 electrically coupled with the first charger unit and mounted on a guide bracket 90 associated with a cabin of the elevator. The second charger unit includes a plurality of pins 100 adapted to receive the voltage tapped by the first charger unit to charge the energy storage unit associated with the elevator.

In an electro-optical device, a first substrate is provided with a temperature detection element and an electro-static protection circuit that protects the temperature detection element from a surge current. A first resistor element is electrically coupled to the temperature detection element in series. The electro-static protection circuit includes a transistor electrically coupled to the first resistor element and the temperature detection element in parallel. A first capacitance element is provided on a wiring substrate electrically coupled to the first substrate, and is provided between a first coupling wiring line electrically coupled to one side of the temperature detection element and a second coupling wiring line electrically coupled to the other side thereof.

The invention proposes an electric drive system (1) comprising an electric storage (10) having first and second batteries (11, 12); a multi-phase inverter (20) having a DC terminal side (21) and an AC terminal side (22); a multi-phase AC electric machine (30) comprising a winding arrangement (31) electrically coupled to the AC terminal side (22) of the inverter (20); a connecting arrangement (40) comprising electrical connection paths with controllable switches (SW1+, SW1-, SWs, SW2+, SW2-, SW3, SW4, SW5, SW6) for establishing and interrupting electrical connections, for providing a drive mode and a transfer mode of the electric drive system (1). In the drive mode, one or both of the first and second batteries (11, 12) are electrically coupled to the DC terminal side (21), for supplying electrical energy from the respective battery or both batteries (11, 12) via the inverter (20) to the electric machine (30), or vice versa. In the transfer mode, the first battery (11) is electrically coupled to the DC terminal side (21) and the second battery (12) is electrically coupled to the winding arrangement (31) of the electric machine (30), for transferring electrical energy from the first battery (11) via the inverter (20) and the winding arrangement (31) to the second battery (12), or vice versa. Advantageously, the invention enables a battery self-heating as well as a battery balancing, according to need. The invention further proposes a corresponding control device and control method for such a drive system (1).

The invention relates to the technical field of electromechanical coupling damage diagnosis, and discloses a wind and light storage system electromechanical coupling damage diagnosis method and system.The wind and light storage system electromechanical coupling damage diagnosis method includes the steps that according to geometric data, material attributes and load data of a welding point area, a finite element mechanical model is constructed, and stress distribution data is calculated; according to the environment data and the electrochemical data, a corrosion kinetic model is constructed, and corrosion product parameters are obtained; according to the corrosion product parameters, an elastic modulus degradation model is established, and an inherent frequency degradation value and vibration mode displacement are obtained; performing vibration response analysis on the junction box according to the inherent frequency degradation value and the vibration mode displacement to obtain a stress concentration coefficient; and inputting the electrical parameter variation and the stress concentration coefficient into a damage failure evaluation model to obtain a damage failure evaluation result of the electrical connection point. Through the multi-dimensional coupling model and the dynamic parameter closed-loop feedback mechanism, the electromechanical coupling damage assessment accuracy is effectively improved, and the operation safety and the operation and maintenance efficiency of the wind and light storage system are improved.

A flow sensor for sensing fluid flow. The flow sensor includes an exterior, interior, a circuit board, and first and second ports. The first and second ports permit fluid to flow into and out of the interior. A Hall Effect Sensor in the interior detects the number of revolutions of an impeller. An electric coupler interfaces with the flow sensor and a transmitter for communication of the revolutions of the impeller to a controller. The controller determines the rate of fluid flow in a conduit. The controller issues a command signal to a component of a hydraulic system to alter the rate of fluid flow in the conduit.

A power receiver (301a, 301b, 301c, 301d, 301e, 301f) is disclosed herein. In a specific embodiment the power receiver has a first electrode (300) arranged to be electrically coupled to a body (105) of a living being, the first electrode (300) operable to receive an electrical signal via the body; and a rectifier (307) for rectifying the electrical signal into a rectified electrical signal. The rectifier (307) includes a plurality of rectifier switches and operable in a bulk biasing mode in which first selected rectifier switches of the plurality of rectifier switches are forward bulk biased. A power transmitter (201), an energy transfer apparatus (100) and a method of transmitting electrical power are also disclosed.