32 results about "Unit charge" patented technology

A receiver for wirelessly receiving transmitting power includes a control unit, a charging unit charged by the transmitting power, a sensor configured to measure a physical quantity, and a transmitter configured to transmit the physical quantity. The control unit includes a voltage acquisition module to detect a charging voltage of the charging unit, a threshold comparison module to compare the voltage with a threshold, and a power receiving state determination module to determine a power receiving state based on the comparison. The control unit includes a transmission control module to determine whether transmission is permitted based on the state. A transmission timing control module causes the transmitter to transmit at a predetermined interval. If transmission is not permitted, the timing is delayed by a predetermined time. If the timing is consecutively delayed a predetermined number of times, the transmission is performed after a next predetermined transmission interval.

The invention discloses a photovoltaic hydrogen production grid-connected system and method based on multi-state cooperative scheduling, and relates to the field of new energy comprehensive utilization. The system solves the problems of unstable operation of an electrolytic bath, low comprehensive utilization rate of energy, poor economic benefit and the like caused by intermittency and volatility of photovoltaic power generation in the prior art. The system comprises a photovoltaic power generation unit, an energy storage unit, at least one electrolytic bath unit, a hydrogen storage unit and a controller. The controller monitors the photovoltaic power generation power, the charging state of the energy storage unit and the hydrogen storage state of the hydrogen storage unit in real time, and executes the following operations according to a preset multi-state cooperative scheduling strategy: starting the electrolytic cell units in a grading manner according to a photovoltaic power threshold value; the energy storage unit is used for smoothing photovoltaic power fluctuation and stably supplying power to the electrolytic cell; in addition, on the basis of two independent triggering conditions that the energy storage unit reaches the upper limit or the hydrogen storage unit reaches the upper limit, surplus electric energy of the system is dynamically sold in a grid-connected mode. The device is also suitable for the fields of integrated photovoltaic power generation, electrochemical energy storage and water electrolysis hydrogen production.

The invention provides a new energy power station digital-intelligent integrated grid-connected cooperation method and system, and relates to the technical field of energy storage charging and discharging control. The method comprises the following steps: acquiring the environment temperature, irradiance and output power of a power station; the photoelectric conversion improvement degree is determined based on the current environment temperature and the optimal working temperature, the high-frequency detail component of the irradiance time sequence is extracted, the amplitude discreteness of the high-frequency detail component is determined, and the high-frequency cooperative inhibition degree is determined in combination with the photoelectric conversion improvement degree; an energy spectrum of the output power time sequence is extracted, a high-frequency energy change sequence is constructed, an energy attenuation deviation degree is determined based on a fitting function fitting point change slope Shannon entropy, high-frequency energy and frequency domain energy of a corresponding fitting point, and a cooperation bad interference degree is determined by combining a high-frequency cooperation inhibition degree; based on the current environment temperature, the irradiance signal and the cooperative bad interference degree, obtaining predicted output power through a power prediction model; and controlling the energy storage unit to charge and discharge based on the prediction error. According to the invention, charge-discharge cooperative control of the energy storage unit can be realized.

The driving range estimation method based on unit charge range and battery aging correction mainly includes four steps: online battery SOC estimation, periodic battery SOH update, unit SOC range estimation, and driving range estimation. This invention uses periodic battery SOH estimation to correct the battery SOC estimation, and combines unit SOC range estimation to achieve accurate driving range estimation. It has the advantages of simple model structure, low computational load, high estimation accuracy, and easy implementation in vehicle BMS. Under normal driving conditions, the maximum driving range estimation error of this invention is within 3km, which meets the operating requirements of electric vehicles.

The invention provides a positive pole piece, a secondary battery and an electronic device. The positive pole piece comprises a positive current collector, a positive pole lug and a positive active material layer arranged on at least one side of the positive current collector, the positive active material layer comprises a first material layer and a second material layer, and the second material layer comprises a first region and a second region; along the thickness direction of the positive pole piece, the first material layer is arranged between the positive current collector and the first region, and the second region comprises a first thinned region; in the width direction of the positive pole piece, one side of the positive pole current collector is connected with a positive pole lug, the second region is adjacent to the first region, the second region is arranged on at least one surface of the positive pole current collector, and the second region is positioned between the first region and the positive pole lug; the unit charge gram capacity of the first material layer is N1, the unit charge gram capacity of the second material layer is N2, and N1 and N2 meet the following conditions: N2 is greater than N1, N2 is greater than or equal to 180 mAh / g and less than or equal to 200 mAh / g, and N1 is greater than or equal to 130 mAh / g and less than or equal to 150 mAh / g. Through the arrangement, the energy density of the secondary battery can be improved.

The invention relates to the technical field of lithium battery protection, and discloses a high-safety lithium battery overcharge protection device which comprises a lithium battery charging mechanism, the middle position of the lithium battery charging mechanism is connected with an overcharge protection mechanism, the lithium battery charging mechanism comprises a positioning protection frame, and the middle position of the positioning protection frame is connected with a charging connection base. A limiting groove is formed in one side of the positioning protection frame; according to the invention, current input can be rapidly and thoroughly cut off when overcharge or current abnormity is detected; the driving motor drives the eccentric control frame to rotate through transmission of the positioning shaft and the positioning gear, so that the lifting protection frame, the power connection limiting frame and the protection frame are stably and quickly jacked up and move upwards; the charging plug of the lithium battery unit is quickly separated from the charging connection base, so that the complete power-off treatment of the lithium battery unit is realized; according to the design, the influence of continuously input micro current on the lithium battery unit is effectively avoided, the service life of the lithium battery is remarkably prolonged, and the charging safety of the lithium battery is remarkably improved.

Charging cable (100) for carrying out a charging process of an electrical storage unit (110), with: at least one measuring unit (120) for measuring charging current during operation of the charging cable (100), wherein the measuring unit (120) is assigned a control unit (130) for controlling a light source (140), wherein the charging cable (100) includes the light source (140), and the light source (140) has light elements (142), wherein the light elements (142) are arranged along the entire length of the charging cable (100), wherein the light elements (142) are arranged circumferentially at least at the ends of the charging cable (100), and where the density of the light elements (142) per unit area is increased at the ends of the charging cable (100).

The system according to this embodiment aims to optimize drone battery management and charging schedules, as well as optimize flight paths considering weather conditions and social media information. [Solution] The system according to the embodiment comprises a management unit, a scheduling unit, a charging unit, an optimization unit, and an analysis unit. The management unit manages the battery status of the drone. The scheduling unit creates a charging schedule based on the battery status managed by the management unit. The charging unit charges the drone based on the charging schedule created by the scheduling unit. The optimization unit analyzes weather data and optimizes the flight path. The analysis unit analyzes information from social media and avoids inappropriate routes.

A charging control method and charging control apparatus for a vehicle charging device. The vehicle charging device is mounted on a traveling rail hoisted at the top of a parking lot, and charging base stations which are connected to charging guns are arranged along the traveling rail and correspond to parking spaces in the parking lot. The vehicle charging device comprises a charging main unit mounting platform and a charging main unit, which is detachably mounted to the charging main unit mounting platform. The charging control method comprises: a charging main unit mounting platform receiving a charging instruction for transporting a charging main unit to a target charging base station to execute a charging task; the charging main unit mounting platform moving to the charging main unit, and mounting the charging main unit thereon; the charging main unit mounting platform with the charging main unit mounted moving to the target charging base station; and the charging main unit mounting platform unmounting the charging main unit, and electrically docking the charging main unit with the target charging base station, wherein a movable plug-in module of the charging host is electrically connected to a static plug-in module of the charging base station, such that the charging main unit charges a vehicle by means of a charging gun connected to the charging base station.

A gate driver has a plurality of stages for outputting a gate signal for imaging at display driving and outputting a gate signal for sensing at sensing driving after the display driving. Each stage of the plurality of stages includes a pixel row selection unit and an output unit, the pixel row selection unit charging a first node with a first preceding stage carry signal according to a pixel row selection signal of a gate-on voltage during the display driving and charging a second node with a first high potential power voltage according to a sensing start signal of the gate-on voltage and a charged voltage of the first node during the sensing driving, the output unit outputting a scan clock of the gate-on voltage as the gate signal for sensing while the second node remains in a charged state at the sensing driving, wherein the first high potential power voltage is higher at the sensing driving than at the display driving.

The invention discloses a piezoelectric underwater acoustic chip array structure and a chip, and belongs to the technical field of micro electro mechanical systems. The chip array structure sequentially comprises a sensitive structure layer, a lower electrode insulating layer and an SOI layer from top to bottom, the sensitive structure layer comprises an upper electrode wafer, a piezoelectric layer, an upper and lower electrode interconnection line, a lower electrode connection line and a lower electrode wafer; the SOI layer comprises a device silicon layer, a buried oxide layer and a back substrate, cavities are formed in the back substrate, and each cavity defines a chip unit; and the upper electrode wafers of the chip units are electrically conducted with the lower electrode wafers of the adjacent chip units through the upper and lower electrode interconnection lines and the lower electrode connecting lines to form a tandem array structure. Under the condition of keeping unit charge output unchanged, the total equivalent capacitance of the array is reduced, the output voltage is improved, and the sensitivity of the piezoelectric underwater acoustic chip is further improved.

The utility model provides test equipment, which comprises a current acquisition unit, a charging unit, a controller and a clamping unit used for fixing equipment to be tested, the charging unit comprises a charging base and a lifting unit connected with the charging base, the charging base is provided with at least one first charging pin, the charging unit and the clamping unit are oppositely arranged, and the lifting unit is connected with the lifting unit. The controller is used for controlling the lifting of the lifting unit so as to adjust a first state in which the charging unit charges the to-be-tested equipment clamped by the clamping unit, and the current acquisition unit is connected with any first charging pin and is used for acquiring current data of the first charging pin. In the technical scheme, the lifting unit of the charging unit is used for adjusting the relative position of the to-be-tested device and the charging unit to simulate the charging scene, and the current acquisition unit is used for acquiring the current data in the test process, so that the charging performance in the test process is subsequently analyzed; the effect of automatically and efficiently testing the charging performance of the to-be-tested equipment is achieved.

The invention provides an energy storage system control method and system for a photovoltaic module, and electronic equipment. The method comprises the steps of collecting a real-time output power signal and related operation environment data of the photovoltaic module; performing empirical mode decomposition on the output power signal to obtain a plurality of intrinsic mode function components and residual errors; hilbert transformation is carried out on each intrinsic mode function component to extract an instantaneous characteristic of each intrinsic mode function component, and the instantaneous characteristic comprises an instantaneous frequency and an instantaneous amplitude; according to the instantaneous characteristic of the intrinsic mode function component and the trend prediction of the residual error, synthesizing to obtain a photovoltaic power prediction value at a future moment; constructing a multi-objective function model according to the photovoltaic power predicted value; solving the multi-objective optimization model under the condition of meeting the power balance constraint and the energy storage unit charge state constraint to obtain a power distribution instruction; and controlling the energy storage system to charge and discharge according to the power distribution instruction.

This disclosure relates to the field of magnetic shielding technology, and discloses a wide-range pulse compensation circuit and device for magnetic shielding demagnetization. A primary energy storage unit supplies power to a first energy storage element via a first charging element, and a first control element adjusts the charging speed of the first energy storage element. A power compensation unit charges a second energy storage element via a dual-pathway, and a second control element switches to achieve power compensation. A resonant modulation unit, through a third control element and a resonant adjustment module, maintains the underdamped oscillation of the demagnetizing coil and adjusts the resonant parameters, while the demagnetizing coil generates a demagnetizing pulse magnetic field. The primary energy storage unit adjusts the charging speed of the first energy storage element via the first control element, allowing for flexible adaptation to different operating modes. This satisfies the need for rapid energy replenishment after long-term idle periods, and also addresses scenarios of short-term repeated use and single large energy output, improving the circuit's energy storage adaptability and energy utilization efficiency.

A battery management system and battery swapping control method for a battery swapping station are disclosed. The battery management system includes a control unit, a detection unit, a calculation unit, a charging unit, a temperature control unit, and a battery swapping unit. The control unit receives a battery swapping request from a requesting end and records the request reception time t1. The battery swapping request includes at least a scheduled battery swapping time t2 and a battery swapping temperature T. The detection unit detects the battery's charge and temperature information within the battery swapping station. The calculation unit collects the charge and temperature information detected by the detection unit and performs calculations to select a target battery whose charge and temperature meet the battery swapping request at the scheduled battery swapping time t2. The charging unit charges the target battery, and the temperature control unit regulates the temperature of the target battery. The control unit, detection unit, calculation unit, charging unit, and temperature control unit are interconnected, which can reduce the energy consumption of the battery swapping station and improve the driving experience of the vehicle.

The application provides a constant power control circuit, comprising a PWM unit, an output dynamic adjustable duty ratio PWM signal; a load branch, comprising a load resistor, outputting constant power according to the dynamic adjustable duty ratio PWM signal; a load mirror branch, comprising a mirror load resistor, a first current flowing through the load resistor and a second current flowing through the mirror load resistor being in a first preset proportion; a conversion circuit converting a voltage of the load resistor into a third current and converting a voltage of the mirror load resistor into a fourth current; an energy storage unit charging by using the third current and the fourth current respectively; a counting unit converting a charging time of the energy storage unit into a digital parameter; a logic control unit calculating real-time power of the load according to the digital parameter, and dynamically adjusting a duty ratio of the PWM signal output by the PWM unit according to the real-time power, so as to realize constant output of the load power.

A power supply system is provided with: a first battery; a second battery; a power converter connected to the power generation device or an external power source; and a series-parallel switching circuit that can switch between the series connection between the first battery and the second battery and the parallel connection between the first battery and the second battery by the on / off of the plurality of relays, and performs charge equalization control that alternately performs: a first battery charging process that charges the first battery, and a second battery charging process that charges the second battery; the charging unit charges only the first battery by switching on and off a plurality of relays. And a power storage ratio equalization process in which the power storage ratio of the first battery and the power storage ratio of the second battery are equalized. During execution of the power storage proportion equalization processing, power from the power generation device or the external power source is supplied to the auxiliary device or the auxiliary battery.

1. Name of the product in this design: Main unit charging pile (3680KW). 2. Purpose of this design: This design is used for charging electric vehicles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The application provides a kind of collaborative frequency control method of network construction type and follow network type energy storage, comprising: constructing simulation model including network construction type energy storage unit, follow network type energy storage unit, synchronous generator and alternating current load, when simulation model occurs frequency disturbance, the absolute value of frequency deviation is obtained, whether the absolute value of frequency deviation exceeds threshold value is judged, if exceeds set threshold value, then network construction type energy storage unit and follow network type energy storage unit are regulated respectively, if it does not exceed set threshold value, then enter next sampling period, wherein, if exceeds set threshold value, then according to the positive and negative of frequency deviation control energy storage unit charging and discharging.The application gives full play to the virtual inertia support and frequency autonomous support of network construction type energy storage unit, follow network type energy storage unit quickly responds upper control signal, plays better frequency support effect, can quickly and effectively control follow network type energy storage and network construction type energy storage collaborative participation system frequency regulation.

The invention relates to a charging control circuit and explosion-proof electronic equipment. Comprising a Type-C interface unit, a voltage protection unit and a charging unit, and the Type-C interface unit, the voltage protection unit and the charging unit are electrically connected in sequence; the voltage protection unit is configured to transmit a power supply voltage input by the Type-C interface unit to the charging unit when the Type-C interface unit is connected to an external power supply device, so that the charging unit charges a battery of the explosion-proof electronic device; and when the Type-C interface unit is not connected to the external power supply equipment, the charging unit is prevented from outputting voltage through the Type-C interface unit. Therefore, the mechanism enables the explosion-proof electronic equipment to only support the forward charging function and forbid the reverse power supply function. When an internal fault of the explosion-proof electronic equipment occurs and an inductor of the inductor boost circuit loses efficacy, the unstable voltage generated by the inductor boost voltage due to the inductor failure cannot be output through the Type-C interface unit, so that the overflow of the unstable voltage is controlled, and the potential safety hazard is finally eliminated.

A simultaneous ignition method for a hollow modular charge using a cluster laser according to the present invention can maximize an intensity of a laser beam per unit area radiated to a gunpowder coating part (39) by adjusting a path of the laser beam from first, second, third, fourth, fifth, and sixth laser oscillators (11, 12, 13, 14, 15, 16) igniting the gunpowder coating parts (39) through one-to-one matching with unit charges Nos. 1, 2, 3, 4, 5, and 6 (31, 32, 33, 34, 35, 36) having a charge inner diameter (38) as they goes away due to the linear arrangement of the unit charges Nos. 1, 2, 3, 4, 5, and 6 (31, 32, 33, 34, 35, 36), thereby simultaneously igniting a plurality of lasers in a cluster-shaped combination.

Charging device comprising a vehicle with a charging module (2) in the vehicle underbody and a stationary charging station (4) with a charging unit (6) for inductively charging a battery of the vehicle, characterized in that - that the charging station is located close to or in the ground, - that the charging unit is mounted in a floating manner in the charging station, - that the loading unit has a predefined horizontal movement area, - that the charging module has at least one localization magnet (7), - that the charging unit has at least one positioning magnet (8), - that the charging unit is designed as a primary coil, - that the charging module is designed as a secondary coil.

The application provides an electric vehicle wireless charging system, and relates to the technical field of wireless charging.The electric vehicle wireless charging system comprises a filter unit, an output end of the filter unit being connected with a SWISS rectifier unit, the SWISS rectifier unit converting alternating current output by an alternating current input power source filtered by the filter unit into direct current; a current control inverter unit connected with the SWISS rectifier unit, the current control inverter unit converting the direct current into a high-frequency pulse signal; a ground end isolation resonance unit connected with the current control inverter unit, the ground end isolation resonance unit converting the high-frequency pulse signal into a resonance signal and outputting the resonance signal; a vehicle-mounted end resonance unit connected with a vehicle-mounted end rectifier unit, an output end of the vehicle-mounted end rectifier unit being connected with a vehicle battery, the vehicle-mounted end resonance unit receiving the resonance signal and converting the resonance signal into a corresponding pulse signal, and the vehicle-mounted end rectifier unit charging the vehicle battery after rectifying the pulse signal.The electric vehicle wireless charging system has the beneficial effects of solving the problems of low wireless charging efficiency, large power grid pollution, narrow battery charging range, large alignment error between the ground and the vehicle-mounted coil, and the like, and is compatible with three-phase fast charging and single-phase home charging.

The application discloses a kind of railway engineering car power battery energy feedback charging control system and method, control method includes the following steps: S101) when being in electric brake operating condition and running normally, the energy P consumed on auxiliary load is calculated 负载 ; S102) according to P 负载 , wheel circumference brake energy P 轮周 And the discharge current of charge-discharge unit judge whether the residual energy of intermediate DC circuit is positive, if yes, then execute step S103), if not, then jump to step S101) and execute;S103) calculate the electric brake energy allowed charging current value I1;S104) according to I1, and in combination with the allowed charging current value I 允 of power battery, calculate the charging current target value I 目标 = min (I1, I 允 );S105) according to I 目标 Control charge-discharge unit charges power battery.The application can solve the technical problems that the energy utilization rate of existing power battery charging control mode is not high, the system structure is complex, and the cost is higher.

The present application provides a battery heating method, a circuit, a battery apparatus, an electrical device, and an energy storage device, and belongs to the technical field of batteries. The battery heating method comprises: acquiring the temperature of a battery; and, in response to the temperature of the battery being less than a preset temperature, controlling, by means of a switch circuit, the battery to be in a heating stage so as to heat the battery, the heating stage comprising a first heating stage, and the first heating stage comprising: by means of the switch circuit, repeatedly executing N1 times the step of first battery units charging a first energy storage circuit and the first energy storage circuit charging second battery units, N1 being a positive integer greater than or equal to 1. By controlling the switch circuit, using the charging and discharging of battery packs can heat each of the battery packs connected in parallel.

The application provides a charging system and a vehicle; in the charging system, an electric drive module sends collected running state information of its own battery unit to a charging management unit; the charging management unit determines the output power of each charging unit based on the sent running state information and historical charging information corresponding to each battery unit, so that the charging unit charges the battery unit corresponding to the charging unit based on the corresponding output power. In this way, each electric drive module is configured with an independent charging unit, which is uniformly managed by the charging management unit, which is beneficial to realize accurate control of charging of each electric drive module; and compared with centralized charging, it is beneficial to avoid the problem that the whole system cannot be charged due to failure of the central charging unit, thereby causing the vehicle to lose function.

The application provides a kind of container type electrochemical energy storage system grid-connected control method and system, belong to energy storage and grid control technical field, first obtain the electrochemical characteristic data of container type electrochemical energy storage system (including energy storage unit charge migration rate, electrode reaction activity, electrolyte distribution etc.) And grid dynamic admission data (cover real-time power surplus and deficiency, voltage fluctuation tolerance, frequency regulation response etc.);Then construct deep learning collaborative mapping model to establish the dynamic correlation of electrochemical characteristics and grid admission capacity, generate grid-connected collaborative control strategy;Again grid-connected collaborative control strategy is disassembled into electrochemical parameter adjustment instruction and transmission parameter adjustment instruction;According to the grid-connected feedback control instruction generated after adjusting electrochemical parameter adjustment instruction and transmission parameter adjustment instruction and sent to grid-connected control unit, maintain stable grid-connected state.The application improves the stability, reliability and efficiency of energy storage system grid-connected.

The invention discloses an intelligent ordered charging system and method, and relates to the field of charging infrastructure and energy management, and the system comprises a central energy management controller which is used for obtaining the real-time operation data and future demand data of a charging station, taking the total limit value of power distribution capacity as a constraint condition, and taking the optimization of the overall operation efficiency of the charging station as a target. Generating an optimized power distribution instruction for each charging interface and each energy storage unit; the energy storage unit stores and releases electric energy; the energy storage unit charging and discharging management module receives and executes the optimized power distribution instruction, and controls the energy storage unit to perform charging or discharging operation; the vehicle charging and discharging management module receives and executes the optimized power distribution instruction, and controls a specified charging interface to perform charging or V2G discharging operation on the electric vehicle; the real-time changing charging load requirement can be met, the charging cost can be controlled, the charging supply and demand contradiction of the charging station can be effectively relieved, and the non-sensitive intervention of orderly charging of the terminal user can be realized.

To provide an electronic apparatus capable of extending a usable time in the electronic apparatus provided with a left unit and a right unit mounted with solar batteries.SOLUTION: The partner unit charging amount obtaining section 100L of the left ear phone unit 7L functioning as the main unit obtains the first charging amount of the rechargeable battery 100R transmitted from the right ear phone unit 14R functioning as the sub unit. The charging amount comparing section 8L compares the first charging amount with the second charging amount of the rechargeable battery 9L acquired by the own unit charging amount acquiring section 14L. As a result of the comparison between the first charged amount and the second charged amount by the charged amount comparing unit 11L, when the difference between the first charged amount and the second charged amount is equal to or larger than the first differential amount, the notifying unit 8L notifies the user of the fact.SELECTED DRAWING: Figure 3

The application relates to a gate driving circuit and a display device, the gate driving circuit comprises a plurality of cascaded gate driving units, the gate driving units charge horizontal scanning lines corresponding to display areas of a liquid crystal display panel, each gate driving unit comprises a pull-up control circuit, a pull-up circuit, a pull-down circuit, a pull-down maintaining circuit and a voltage stabilizing circuit, the voltage stabilizing circuit is electrically connected with the pull-up control circuit, the pull-up circuit, the pull-down circuit and the pull-down maintaining circuit, is used for receiving a second direct-current low-voltage signal and the pull-up control signal, and maintains stability of the pull-up control signal high potential according to the pull-up control signal and the second direct-current low-voltage signal. That is, the application can improve the stability of the scanning driving signal output waveform, and further improve the driving capacity of the gate driving circuit, so as to improve the charging rate of the liquid crystal display panel.