635 results about "Capacitance voltage" patented technology

The invention discloses an intelligent self-adaptive suppression method for oscillation of a data-driven SVG (static var generator) grid-connected system. Obtaining the capacitor voltage of the direct current side of the SVG and the actual voltage and the actual current of the grid connection point of the SVG, and respectively calculating the active power output by the SVG and the voltage amplitude output by the SVG according to the actual voltage and the actual current; a current reference value is generated through a voltage outer loop; the active power output by the SVG, the voltage amplitude output by the SVG and the voltage of the direct current side of the SVG are input into a DeePC controller to be processed, and an additional current reference value is obtained; and then the current error is obtained by adding the current reference value output by the voltage outer loop and subtracting the actual current, and then the current error is input to the voltage inner loop for processing to obtain a modulation wave voltage amplitude signal. According to the method, the oscillation of the converter grid-connected system can be suppressed under the condition that the dynamic characteristics of the converter and the conditions of the power grid are changed, and the problems of insufficient fixed structure and parameter sensitivity of the traditional SVG are solved.

The invention discloses a construction method and a modulation method of a three-port multi-frequency MMC topology based on bridge arm multiplexing, and relates to the technical field of power electronics. The construction method comprises the steps that sub-modules of a traditional double-bridge-arm MMC are integrated and optimized into a three-bridge-arm structure through a current conversion branch, independent energy interaction of three ports is achieved through an auxiliary bridge arm, multi-frequency operation modes of power frequency, frequency division, direct current and the like are supported at the same time, and therefore the utilization rate of the bridge arm sub-modules is increased, and the energy utilization rate of the MMC is increased. And the overall size and the manufacturing cost of the converter are reduced. Based on three-port multi-frequency coordination control and power balance requirements, a modulation method of the topological structure is provided, a multi-frequency coordination modulation strategy is adopted, frequency offset is performed through an auxiliary bridge arm to reduce cross interference of port frequency, and output waveform quality is improved through multi-objective optimized capacitor voltage balance control. And meanwhile, direct-current side faults are effectively eliminated by means of the auxiliary bridge arm.

This invention discloses a method and system for suppressing capacitor voltage fluctuations in SiC MMC submodules, belonging to the field of electronic power technology. Based on the analysis results of the optimal broadband harmonic circulating current injection boundary and order for SiC MMC submodules, an optimized model for submodule capacitor voltage fluctuations is determined that simultaneously injects 2nd, 4th, and 8th harmonic circulating currents and 3rd harmonic voltages, which can fully utilize the higher control bandwidth characteristic of SiC MMC. By solving the optimized model for submodule capacitor voltage fluctuations, the amplitude and phase of the reference values ​​of the 2nd, 4th, and 8th harmonic circulating currents to be injected, as well as the amplitude and phase of the corresponding 3rd harmonic voltage, are determined. Then, by injecting 2nd, 4th, and 8th harmonic circulating currents and jointly injecting the 3rd harmonic voltage, broadband harmonic joint injection is achieved, reducing the capacitor voltage fluctuations of the submodule and realizing a method for suppressing capacitor voltage fluctuations in SiC MMC submodules with high suppression effect.

The invention is suitable for the technical field of resonant converters, and provides a starting control circuit and a resonant converter. The starting control circuit comprises a feedback module, a comparison selection module and a logical operation module, the comparison selection module is electrically connected with the feedback module and the logical operation module, the feedback module is used for being electrically connected with the output end of a resonant conversion circuit in the resonant converter, and the logical operation module is used for being electrically connected with a driving circuit in the resonant converter. According to the starting control circuit provided by the embodiment of the invention, the resonant capacitor voltage constraint threshold value which is gradually enlarged along with the starting process can be constructed, smooth establishment of resonant capacitor direct current bias is realized, the fluctuation amplitude of the resonant capacitor voltage is limited, the problem that the total bus voltage is applied to the resonant inductor in a traditional scheme is avoided, and the starting control circuit is suitable for a high-voltage power supply. Finally, the resonance current peak value in the starting stage is effectively suppressed, and the impact of current stress on core devices such as a switching tube and a resonance inductor is reduced.

The application provides a transient frequency conversion control method of a converter and an electronic device. The method comprises the following steps: determining the working state of the converter, wherein the working state comprises a light load working state and a heavy load working state; if it is determined that the working state switches between the light load working state and the heavy load working state, starting a transient frequency conversion control strategy to adjust the switching frequency of the converter, wherein the transient frequency conversion control strategy is used to adjust the duration of the freewheeling stage in the switching cycle of the converter; after the working state of the converter switches, and the clamping capacitor voltage sampling value of the converter v c satisfies a preset condition, exiting the transient frequency conversion control strategy to restore the switching frequency of the converter to normal. The dynamic response speed of the converter is effectively improved, and the overshoot and drop of the output voltage when the converter is subjected to a step load are reduced.

The invention belongs to the field of storage, and discloses a high-energy-efficiency mixed-precision charge domain in-storage computing architecture and a working method thereof. Comprising a single-slope analog-to-digital converter, a sparsity perception input alignment module, a multi-bit input accumulation module, a controller and an accumulation module, wherein the single-slope analog-to-digital converter consists of an index calculation array, a mantissa calculation array, a shared ramp voltage generator and a bidirectional counter. According to the invention, serial input binary coding based on capacitor voltage is suitable for floating point and integer multiply-accumulate operation with flexible bit width; according to the invention, a shared single-slope analog-to-digital converter (SS-ADC) is introduced to realize maximum index search and index difference calculation; according to the method, a sparsity perception calculation scheme is provided, low-importance input-weight pairs are filtered out through an adjustable threshold value, and invalid power consumption is reduced; according to the method, a multi-bit input accumulation method is further combined, and an ADC redundancy optimization quantization and normalization process is utilized, so that the overall energy efficiency is improved.

The present disclosure provides a switched-capacitor voltage converter, a chip, and an electronic device. In the switched-capacitor voltage converter, a first branch, a second branch, a third branch, and a fourth branch are electrically connected between an input terminal and a ground terminal of the switched-capacitor voltage converter, and are further electrically connected to an output terminal of the switched-capacitor voltage converter. Transistors in the first branch and the second branch are configured to be simultaneously turned on or turned off and of different sizes, and transistors in the third branch and the fourth branch are configured to be simultaneously turned on or turned off and of different sizes. When the output terminal of the switched-capacitor voltage converter is electrically connected to a small load, the transistors in the branches may be controlled to be turned off, such that loss of the switched-capacitor voltage converter is effectively reduced.

The invention discloses a power control method, system, equipment and medium for a modular multilevel converter, and belongs to the technical field of power electronics and power system application, and the method comprises the steps: collecting the bridge arm current, the sub-module capacitor voltage, the DC bus voltage and the AC side power of the modular multilevel converter; calculating a power error according to the AC side power and a power reference value, and calculating a sub-module capacitor voltage error according to the sub-module capacitor voltage and a voltage reference value; constructing a Lyapunov function comprising a plurality of control targets, wherein the Lyapunov function comprises a power error term, a sub-module capacitor voltage error term, a circulating current suppression term and a total energy balance term; and determining a control law on the basis that the Lyapunov function meets a stability condition, and controlling the modular multilevel converter according to the control law. According to the method, the coupling control problem of multi-terminal direct current system power distribution and sub-module energy balance is considered and improved.

The invention belongs to the technical field of power electronic conversion, and particularly discloses an MMC-STATCOM system direct optimization model prediction control method and system, and the method comprises the steps: respectively calculating a differential mode voltage and a common mode voltage between an upper bridge arm and a lower bridge arm of each phase; third harmonic voltage is injected into the upper bridge arm and the lower bridge arm of each phase to obtain upper bridge arm voltage and lower bridge arm voltage of a newly-added third voltage component of each phase; and based on the obtained voltage of the upper and lower bridge arms of the newly added three-time voltage component, determining the input number of the sub-modules of the upper and lower bridge arms of each phase by adopting a nearest level approximation modulation strategy, and determining the input sub-module of each bridge arm according to the capacitor voltage sequence of each sub-module of the bridge arms and the current direction. According to the method, on the basis of keeping a discrete control structure, direct injection of third harmonic voltage under an MPC framework is achieved, and higher real-time performance and expandability are achieved.

The invention discloses a voltage and current synchronous measurement method for a high-voltage power supply of a fusion device, which is suitable for accurately sampling and monitoring voltage and current signals of each key node of the high-voltage power supply of the fusion device. According to the method, firstly, a resistance-capacitance voltage division technology is adopted, a front-end high-voltage attenuation network is constructed by utilizing high-precision resistors and capacitors, and stable voltage division and linear attenuation of high-voltage signals are achieved; then, electrical isolation is realized through a small-signal voltage and current transformer, and multi-channel synchronous acquisition of voltage and current signals is completed respectively. Then, the ADC module adopts two multi-channel AC sampling special electric energy metering chips to realize ten-channel synchronous acquisition of high voltage and current signals. And finally, the FPGA receives, processes and analyzes the acquired data in real time, and transmits a result to an upper computer monitoring platform. According to the method, the synchronism, the precision and the anti-interference performance of a fusion power supply high-voltage measurement system are remarkably improved, and reliable data support is provided for safe and stable operation of a fusion device.

The invention provides a network construction type converter control method suitable for multiple power grid intensities, and belongs to the field of new energy grid-connected stability. The method comprises the steps that the actual output power of an inverter is calculated according to inverter side capacitor voltage and grid-connected current; the actual output power of the inverter and the power reference value control an output internal potential amplitude reference value and an internal potential phase angle through the virtual synchronous generator; subtracting the voltage drop of the grid-connected current on the virtual impedance from the internal potential amplitude reference value to obtain a virtual internal potential; inputting the virtual internal potential as a reference voltage into a voltage and current double-loop controller, inputting a grid-connected current into a proportional differential controller, subtracting the output of the proportional differential controller from the output of the voltage and current double-loop controller, inputting an obtained result into an inverter through an SPWM modulator, and controlling the inverter; the invention also provides a control system of the network-forming converter. Grid-connected current proportional differential feedback is introduced, the inner loop control bandwidth is kept constant in the dynamic change process of the power grid strength, and power-voltage loop harmful coupling is eliminated.

The invention relates to the technical field of modular multi-level converter health management, and discloses a modular multi-level converter sub-module capacitance value online monitoring method and system, which are used for improving the accuracy of capacitance value monitoring. The capacitance value on-line monitoring method for the sub-module of the modular multilevel converter comprises the following steps: monitoring capacitance voltage information and bridge arm current signals of the sub-module; determining an initial input window of the sub-module based on the capacitor voltage information; determining an optimal input duration interval of the initial input window based on an error relationship between the duration of the preset input window and the capacitance value of the corresponding capacitor; eliminating abnormal durations which are lower than the lower limit of the optimal duration interval or higher than the upper limit of the optimal duration interval in the initial input window to obtain a target input window; and extracting the capacitor voltage at the target starting moment and the target cut-off moment of the target input window and the corresponding target bridge arm current, and calculating the capacitance value of the target capacitor.

The invention discloses a network construction type SVG (static var generator) control method based on data-driven optimal self-synchronization. Obtaining the capacitor voltage of the direct current side of the SVG and the actual voltage and the actual current of the grid-connected point; constructing a DeePC controller input according to the actual voltage of the grid-connected point, the SVG direct current side capacitor voltage and a preset reference value, and obtaining a frequency deviation through the processing of the DeePC controller; adding the frequency deviation and a power grid rated frequency to obtain a controller frequency, and integrating to obtain a modulation wave phase signal; according to the SVG output voltage reference value, the actual voltage is sequentially processed by a voltage outer loop, current amplitude limiting and current inner loop to obtain a modulation wave voltage amplitude signal; and processing the modulated wave phase signal to obtain a modulated wave signal. According to the method, the control sequence is optimized online by directly utilizing the voltage data collected in real time, the mismatching risk of a traditional model is avoided, and a reactive power support solution with better dynamic response and autonomous toughness is provided for a new energy power grid.

Disclosed in the present invention are an FPGA-based simulation method for a high-voltage direct-connected energy storage system, and an apparatus. A power unit of the high-voltage direct-connected energy storage system is divided into an H-bridge and an energy storage unit part, the H-bridge and a grid-side topology are placed in an FPGA for simulation, an energy storage battery branch part is placed in a CPU for simulation, and the FPGA and the CPU exchange submodule voltage and current information by means of a PCIE bus. The FPGA establishes a Thevenin model of a single high-voltage direct-connected energy storage system submodule, performs algebraic superposition by using the series relationship of submodules, and calculates a submodule capacitor voltage, a submodule terminal voltage, and a bridge arm voltage; an equivalent model and the grid-side topology run with a simulation step size of 1µs in an FPGA of a simulator; the energy storage battery branch runs in a CPU of the simulator, and the CPU supports a user-defined energy storage battery model; and the respective advantages of a real-time multi-core processor and an FPGA are fully combined, so that the high-voltage direct-connected energy storage system with any number of submodules can be precisely simulated with a simulation step size of 1µs in real time on the FPGA.

In a microelectromechanical system (MEMS) sensor, movement of a component such as a proof mass due to a force of interest is sensed capacitively. A capacitance-to-voltage (C2V) converter receives a capacitance signal from the sensor and outputs a signal that includes an offset in addition to a signal of interest. The output signal is analyzed to identify the offset portion of the output signal and to modify values one or more variable capacitors coupled to the C2V input reduce the offset portion of the output signal.

The invention discloses a flexible DC power transmission system grid following-grid construction hybrid control method, and the method comprises the following steps: obtaining the voltage and current of a receiving end MMC grid connection point, and carrying out the dq decomposition, thereby obtaining a d-axis component and a q-axis component under a dq rotating coordinate system; acquiring actual values and related reference values of direct-current voltage output by the receiving-end MMC, alternating-current voltage and frequency of a grid-connected point of the receiving-end MMC and average capacitance voltage of a sub-module; sequentially calculating a phase reference value of the receiving end MMC, a d-axis current reference value and a q-axis current reference value of the grid connection point, a d-axis voltage reference value and a q-axis voltage reference value of the differential mode voltage, a direct current reference value and a direct current modulation ratio reference value; and calculating the reference value of the modulation voltage of the receiving end MMC under the abc static coordinate system. The control method has the advantages of adapting to wide-range short-circuit ratio change of the receiving-end power grid, guaranteeing reliable transmission of power under the condition of wind speed change, and still maintaining synchronous operation when the receiving-end alternating-current power grid seriously breaks down.

The invention relates to the technical field of electromagnetic transient simulation, in particular to an electromagnetic transient simulation decoupling method, system and device based on a single-impedance branch and a medium, and the method comprises the steps: dividing a system to be simulated into two subsystems which are connected through the single-impedance branch, and carrying out the equivalent reconstruction to form a reconstructed branch model; establishing a discrete state space equation based on the reconstructed branch model; according to the main step length, the number of sub-steps meeting the stability condition is determined based on a small-step synthesis algorithm, and the main step length is equally divided into differential step lengths; in each main step length interval, performing iterative calculation on the state-space equation by using a differential step length to obtain a branch current and a capacitor voltage at the next moment; and injecting the calculated branch current serving as a known current source into an original network equation, solving in parallel to obtain the port voltage of the subsystem, and completing decoupling calculation and promoting simulation. According to the method, effective decoupling of the universal single-impedance branch can be realized, and the applicability, the numerical stability and the calculation efficiency of parallel simulation are improved.

The invention discloses a rapid discharge control system and control method for an AC loop of an inverter. The rapid discharge control system comprises an inverter side circuit module, a mains supply detection module, a control module and a discharge execution module, the inverter side circuit module is used for forming a detection and electric loop; the mains supply detection module is used for judging whether the AC power grid has mains supply; the control module is used for receiving detection signals of the mains supply detection module and outputting driving control signals; and the discharge execution module is used for receiving the drive control signal of the control module and controlling the conduction states of a switch tube Q3 and a switch tube Q4 in the full-bridge circuit to form a discharge loop of the AC side capacitor. The hardware cost is not increased, and the problem of cost increase and hardware transformation workload are avoided. Rapid discharge of AC side capacitor voltage is realized through software control, and the risk of electric shock of operators is fundamentally avoided. The control algorithm is simplified, the DSP operation load is reduced, misjudgment can be avoided, and the accuracy and reliability of discharge triggering are ensured. The method has a wide application scene.

The invention provides a network construction type converter fault ride-through control method based on model predictive control and a resonance controller, and the method comprises the following steps: A, obtaining a reference value of power under a fault according to a network construction type converter and a virtual synchronous generator (VSG) mathematical model with the purpose of providing required positive sequence reactive power; step B, extracting a fault transient component through a high-pass filter and generating a capacitor voltage positive sequence reference value by using a resonance controller; step C, selecting different capacitor voltage negative sequence reference values according to different control targets; step D, obtaining a filtering current reference value through the reference values of the positive sequence capacitor voltage and the negative sequence capacitor voltage, and constructing a cost function containing current amplitude limiting; and selecting an optimal voltage vector. Compared with the existing method, the method has the advantages that the transient suppression is faster, the steady-state current is not influenced, the resonant controller specifically suppresses a 50Hz transient component, and the reactive response speed is improved by 43% compared with that of a virtual impedance method.

The invention belongs to the technical field of power distribution network high-voltage electrical equipment monitoring, and particularly relates to a ring main unit full-shielding capacitance partial pressure sensing device, a preparation method and a monitoring system. The device comprises high-voltage capacitor sampling units which are connected in series, a high-voltage side shielding structure which wraps the high-voltage capacitor sampling units and is equipotential with a high-voltage end, a low-voltage signal processing module used for processing small-voltage signals, and a low-voltage side shielding structure which is grounded and wrapped. Through the double-layer full-shielding design, an external electric field can be effectively uniformized, partial discharge is suppressed, electromagnetic interference is isolated, and the measurement stability and precision of the ring main unit in a strong electromagnetic environment are remarkably improved. The device is generally of a plug type integrated structure matched with a ring main unit interface, internal capacitors are precisely welded, and the total capacity is controlled within a specific range. And the low-voltage module can condition and analyze voltage division signals, so that collaborative sensing and uploading of multiple parameters such as voltage, frequency, harmonic waves and the like are realized, and key technical equipment is provided for intelligent monitoring of the state of the power distribution network.

The invention discloses a virtual impedance control method based on a double-resonance controller, which is characterized in that a nonlinear load is connected to a power grid at a point of common coupling (PCC), a converter side and a power grid side are respectively provided with a converter side inductor () and a power grid side inductor (), and a branch is led out from the middle point of the converter side inductor () and the power grid side inductor () and is provided with a capacitor (C); the converter side current is fed back and compared with the fundamental wave current reference to form closed-loop control; the closed-loop control includes a proportional resonant controller that adjusts at a harmonic frequency of interest; and when the system does not need the virtual impedance, the branch where the resonance controller is located is cancelled. When the system needs virtual impedance, the capacitor voltage is fed forward through the resonance controller. The resonance controller is connected in series with the feedback branch of the capacitor voltage, so that the high-frequency influence of the branch on the system is eliminated, namely, the stability of the system is not influenced by the branch, and the system can be used for simulating any complex virtual impedance and ensuring the stability of the system at the same time.

In an aspect of the disclosure, an operation method, for balancing voltage of capacitors of a bridge circuit of a multi-level LLC resonant converter, includes: measuring voltages of the capacitors of the bridge circuit, an output voltage and an output current of an output load the multi-level LLC resonant converter, and an input voltage of the bridge circuit; selecting a voltage-level zone of a required output voltage of the bridge circuit according to the output voltage of the output load, and the input voltage of the bridge circuit; selecting a circuit mode, with a highest value of the required output voltage; and outputting PWM signals corresponding to the circuit mode, with a switching frequency, to switches of the plurality of capacitor-switch modules.

This invention discloses a method for directional experimental verification and performance testing guided by computational simulation in materials chemistry, belonging to the field of materials performance testing technology. The method includes: acquiring the structural parameters of semiconductor devices and initial parameters of interface defects; calculating the characteristic time constant of carrier trapping by interface traps; simulating and generating a theoretical capacitance-voltage hysteresis loop; then performing bidirectional voltage scan tests within a sensitive scan rate range; finally, updating the inversion parameters and resimulating, iteratively adjusting until the characteristic deviation between the theoretical loop and the measured data meets the convergence condition, thus outputting an interface state density distribution map. This invention, through computational simulation-guided directional experiments, achieves accurate capture and non-destructive in-situ characterization of the dynamic response characteristics of interface states, effectively establishing the dynamic structure-property relationship between microscopic interface defects and macroscopic device performance, and significantly improving the accuracy and reliability of interface defect parameter inversion.

The invention discloses a gallium nitride soft switching high-voltage Buck voltage converter, belongs to the technical field of switching power supplies, and solves the problems of large device switching loss, high thermal stress, large voltage peak and high-frequency oscillation caused by a switching capacitor link in a traditional high-voltage Buck switched capacitor voltage converter by introducing an auxiliary soft switching link. The efficiency and the reliability of the system are improved; furthermore, by introducing a double-phase interleaving parallel structure, the current output capability of the power supply is improved, and the application in a higher power scene can be realized; meanwhile, by adopting the gallium nitride transistor, compared with the traditional scheme, the switching frequency is improved, the size of a passive element is reduced, the integration level of a PCB is improved, the parasitic parameters of the system are reduced, the dead time and the duty ratio loss are reduced, and the system efficiency and the power density are further improved.

The invention provides an MMC type VSC-HVDC system full-bridge sub-module capacitor voltage improved balance control method and system. The method comprises the steps that 1, the allowed fluctuation range of capacitor voltage is set to be Ucrash (100 + / -epsilon)%; 2, if the bridge arm current charges the bridge arm full-bridge sub-modules, the full-bridge sub-modules with low capacitor voltage are triggered preferentially; 3, if the bridge arm full-bridge sub-modules are charged by the bridge arm current, the full-bridge sub-modules with low capacitor voltage are triggered preferentially; 4, if the bridge arm current discharges the bridge arm full-bridge sub-modules, the full-bridge sub-modules with the high capacitor voltage are triggered preferentially, and the full-bridge sub-modules with the voltage lower than the limited range are subjected to partial positive input; and step 5, if the bridge arm current discharges the bridge arm full-bridge sub-modules, preferentially triggering the full-bridge sub-modules with relatively high capacitor voltage, and performing partial positive input on the full-bridge sub-modules with the voltage lower than the limited range. According to the technical scheme, the switching frequency of the module can be greatly reduced on the premise that the capacitor voltage of the sub-module is strictly limited within the allowable fluctuation range.

The present application belongs to the technical field of modular multilevel converter, and particularly relates to a kind of MMC half-bridge sub-module inter-thermal balance control method.The present application takes voltage balance principle and junction temperature balance principle as core, by predicting the junction temperature trend of half-bridge sub-module switching device in next control cycle, the junction temperature of half-bridge sub-module switching device and capacitor voltage are combined to set weight factor C for half-bridge sub-module switching control, which can realize the junction temperature balance of switching device between different half-bridge sub-modules in the same bridge arm.By taking half-bridge sub-module as the research object, and considering the temperature of the four switching tubes in its topology, the thermal balance control of MMC under different operating modes can be realized.By embedding the junction temperature control variable into the voltage balance algorithm and ensuring the stable operation of the MMC system, the junction temperature balance effect of the switching devices between the half-bridge sub-modules can be effectively improved, which can effectively reduce the pressure of uneven thermal stress distribution between the half-bridge sub-modules and improve the operation reliability of the MMC system.

The SiC MOSFET capacitance characteristic prediction method based on a neural network comprises the following steps: step 1: for the capacitance characteristics of a SiC MOSFET device, a C-V capacitance-voltage relationship dataset is constructed, the corresponding relationship data between voltage and capacitance is obtained by simulating and sampling the junction capacitance of the SiC MOSFET under different bias voltage conditions; step 2: the corresponding relationship data is used as the dataset of the neural network of the experiment, and the dataset of the neural network is randomly divided into a training set, a validation set and a test set; step 3: a neural network prediction model for predicting the capacitance characteristics of the SiC MOSFET is constructed; step 4: the neural network prediction model constructed above is trained using the training set and the validation set; and step 5: the V GS , V GD voltage two characteristic variable parameters of the test set are input into the trained neural network prediction model to realize the prediction of the capacitance characteristics of the SiC MOSFET. The present application has the characteristics of high prediction accuracy, low dependence on experimental data and high efficiency.

The utility model relates to the technical field of industrial semiconductors, and discloses a device for detecting the working state of a lamp holder of ultraviolet light curing equipment, which integrates temperature, wind pressure and ultraviolet light intensity detection functions by optimizing the structure of a hardware circuit. The circuit comprises a switch type capacitor voltage converter, a linear voltage regulator, a phototriode, an NTC thermistor, a partial pressure sensor and a CAN communication module. Through the bidirectional TVS diode, RC filtering and two-stage voltage stabilization design, the anti-electromagnetic interference capability is improved, and the signal transmission reliability is improved; temperature, wind pressure and illumination detection circuits are integrated on a single board, the structure is simplified, and the space is saved; the standby energy consumption of the sensor is reduced through hardware power management; by comprehensively optimizing the circuit structure and the signal transmission path, the detection reliability of the working state of the lamp holder of the ultraviolet curing equipment is improved.

The invention relates to a solar charging circuit, a method, a power supply device and equipment, and the solar charging circuit carries out the boosting of a solar electric signal outputted by a solar panel through a boosting charging module under the control of a solar charging enabling end, and outputs a boosting charging signal to an electrochemical capacitor module. The electrochemical capacitor module charges an electrochemical container in the electrochemical capacitor module according to the boost charging signal so as to realize low-temperature charging, and the linear charging module charges the electrochemical container in the electrochemical capacitor module according to the battery temperature corresponding to the lithium battery under the control of the capacitor charging enable signal end. A battery charging signal is output to a lithium battery module based on a capacitor voltage signal provided by an electrochemical hybrid capacitor, so that the lithium battery module charges a lithium battery according to the battery charging signal, the lithium battery is charged by using the electric quantity stored by the electrochemical hybrid capacitor, and the energy of solar energy can be further utilized to a greater extent; and the endurance time of the battery is prolonged.