37results about How to "Improve power conversion efficiency" patented technology

The invention provides an RTDS simulation-based DC booster control method and system for new energy grid connection, and relates to the technical field of new energy grid connection control, and the method comprises the steps: building an RTDS-based DC booster control simulation model for new energy grid connection; operating the control simulation model; acquiring voltage and current data of a low-voltage side and voltage and current data of a high-voltage side of the direct-current booster; obtaining output data of new energy direct current grid connection; based on the voltage and current data of the low-voltage side and the high-voltage side of the direct-current booster, an abnormal analysis value of the direct-current booster is obtained through an abnormal analysis method of the direct-current booster; based on the voltage and current data of the high-voltage side and the output data of the new energy direct current grid connection, an output anomaly analysis value is obtained through an output anomaly analysis method; and controlling the direct current booster through a neural network PID control algorithm according to the abnormal analysis value and the output abnormal analysis value of the direct current booster. According to the invention, the regulation and control accuracy of the DC booster for new energy grid connection is improved.

The embodiment of the invention provides a non-fused ring electron acceptor containing an asymmetric side chain and a preparation method and application thereof, the non-fused ring electron acceptor containing the asymmetric side chain has the following structure: # imgabs0 #, R1, R2 and R3 comprise any one of branched chain type, straight chain type or cyclic alkyl containing 1-20 carbon atoms, and A is a strong electron withdrawing functional group. According to the non-fused ring electron acceptor containing the asymmetric side chain and the preparation method and application thereof provided by the embodiment of the invention, the aryl alkylamine asymmetric structure is introduced as the side chain, so that the molecular planarity of the non-fused ring electron acceptor can be maintained, and the molecular accumulation and solubility can be conveniently regulated and controlled. Therefore, the non-fused ring electron acceptor has the advantages of good solubility, strong crystallization, high mobility, good compatibility and easiness in processing into a film; when the electron acceptor material is used for preparing an organic solar cell, the photoelectric conversion efficiency of the device can reach 16%.

The invention belongs to the technical field of photovoltaic panels, and particularly relates to an energy-saving elevator photovoltaic panel mounting structure which comprises a base station, a side wall is fixedly connected to one side of the base station, two outer stand columns are fixedly connected to the corners of the base station, and two symmetrical vertical shafts are arranged between the two outer stand columns. A vertical shaft is arranged between each outer stand column and the side wall and close to the outer stand column, multiple sets of second shaft seats are fixedly connected to the two outer stand columns, a photovoltaic panel frame is rotationally connected between each set of second shaft seats, and multiple first shaft seats are fixedly connected to the two inner stand columns close to the outer stand columns. Each first shaft seat is rotationally connected with a frame seat rotationally connected with the vertical shaft, each frame seat is rotationally connected with a photovoltaic panel frame, and the outer side of each photovoltaic panel frame is fixedly connected with a photovoltaic panel. The horizontal angle and the vertical angle of the photovoltaic panel frame and the photovoltaic panel are adjustable, so that the photovoltaic panel can be located at the optimal sunlight incident angle, the electric energy conversion efficiency of the photovoltaic panel is improved, the generating capacity is improved, and then the energy-saving effect is improved.

The dual-output energy conversion device, modulation method and power supply equipment provided by the present invention can greatly improve the bus voltage boosting capability of the conversion device by adopting the first electrical energy storage module, so that it can be used within a wider input voltage range. The first conversion output circuit and the second conversion output circuit are provided, and the voltage stress of all switch tubes is reduced to half of the DC bus voltage, which can greatly reduce the system EMI of the conversion device in high-frequency applications and improve the power conversion efficiency of the device. Compared with the traditional multi-stage structure, which needs to realize the midpoint voltage clamping of the front stage and the rear stage and other controls at the same time, and the control structure is complicated, the dual-output energy conversion device provided by the present invention only needs to realize the control of one-stage power conversion, and the control structure is simple.

The invention relates to a manufacturing method of a permanent magnet power generator of a pure electric vehicle, which creatively fills up the following functions: (1) a technology which is equivalent to a secondary commercial power 220V / 50Hz alternating current power supply energy-to-electricity technology; the function (2) is equivalent to a secondary energy structure electronic power technology power engine'electricity-to-energy and electricity-to-electricity 'technology; the function (3) is equivalent to an energy-to-energy technology of a permanent magnet power automobile generator in a secondary energy structure electronic power technology, a DC power supply conversion technology of a DC / DC converter in energy recovery of an energy storage system, an inversion IGBT power module conversion control technology of a DC / AC converter, an electronic rectification technology of a silicon controlled rectifier charger, a DC filtering technology and a switching power supply technology. The invention relates to a technology blank of'energy-to-electricity and electricity-to-energy 'technologies converted by a silicon controlled rectifier control technology and a silicon controlled rectifier capacitive reactance load technology, new energy, new structures, new ideas, new methods and new technologies.

The invention is suitable for the technical field of perovskite solar cells, and provides an anti-solvent-resistant trans-perovskite solar cell and a preparation method thereof. The green anti-solvent dimethyl carbonate is used for replacing the traditional high-toxicity chlorobenzene anti-solvent, so that the problem of environmental pollution in the preparation process of the perovskite solar cell is solved. The prepared perovskite thin film is larger in grain size, higher in crystallization quality, fewer in defect and higher in flatness and density, most leakage current loss is reduced, energy loss caused by non-radiative recombination is restrained, and the current density of the perovskite solar cell is greatly improved. According to the perovskite solar cell, the carrier transmission problem is improved, carrier recombination between perovskite and the electron transmission layer is inhibited, and therefore the open-circuit voltage, the filling factor, the power conversion efficiency, the stability and the like of the perovskite solar cell are greatly improved.

This utility model discloses a transmission connection structure between an engine and a gearbox. This transmission connection structure connects the engine's output shaft to the gearbox's input shaft. The structure includes a housing, a slider, a rotating block, a clutch block, and a drive mechanism. The housing is mounted on the gearbox, the slider is slidably mounted inside the housing, the drive mechanism is mounted on the housing with one end extending into the housing and driving the slider to move within it, the rotating block is rotatably mounted inside the slider, and the clutch block is mounted in the inner cavity of the slider. The head of the input shaft is a perforated shaft that slides into a perforated groove in the rotating block, and the head of the output shaft is fitted to the clutch block. This transmission connection structure can replace the use of a vehicle clutch in agricultural machinery, providing a clutch effect. Furthermore, when disconnecting the power transmission between the engine and the gearbox, the input shaft experiences no additional load, improving power conversion efficiency. This structure is simple, easy to operate, suitable for agricultural machinery with simple transmissions, and also reduces costs.

This invention discloses an acid gas purification system based on dual high-speed permanent magnet explosion-proof centrifugal compressors, comprising an absorption purification system, an energy-saving flash evaporation system, and a heat pump distillation regeneration system. The flash tank of the energy-saving flash evaporation system is connected to a #1 demister; the outlet of the #1 demister is connected to the inlet pipe of the #1 high-speed permanent magnet explosion-proof centrifugal compressor, and the outlet pipe of the #1 high-speed permanent magnet explosion-proof centrifugal compressor is connected to the hot-side inlet pipe of the flash evaporator heat exchanger. The feed pipe at the top of the distillation column of the heat pump distillation regeneration system is connected to the cold-side outlet pipe of the bottom liquid heat exchanger; the distillation column is connected to a #2 demister; the outlet pipe of the #2 demister is connected to the inlet pipe of the #2 high-speed permanent magnet explosion-proof centrifugal compressor, and the outlet pipe of the #2 high-speed permanent magnet explosion-proof centrifugal compressor is connected to the shell inlet pipe of the reboiler. This invention fully utilizes the energy of the acid gas purification process, greatly improving the heat utilization rate of flash vapor, distillation column top gas phase, and bottom liquid, resulting in significant energy saving and consumption reduction.

This invention discloses an unmanned intelligent photovoltaic green electricity distribution device for mines, featuring source-grid-load-storage coordination. The device includes a base, with a nested shock-absorbing assembly at the top. Above the nested shock-absorbing assembly is an energy storage distribution box. An energy storage interface compartment is connected to the left side of the energy storage distribution box, and a distribution control box is located on the right side. A flexible connection assembly is positioned above the energy storage distribution box, and a source-grid adapter box is located above the flexible connection assembly. A dual-path photovoltaic rectifier compartment is located on the left side of the source-grid adapter box, and a mine microgrid connection compartment is located on the right side. Utilizing the dual-path photovoltaic rectifier compartment within the source-grid adapter box, synchronous conversion of two photovoltaic DC power sources is achieved, improving power conversion efficiency and filtering power noise. The mine microgrid connection compartment integrates voltage regulation and lightning protection functions, enabling efficient connection with the mine microgrid.

The application discloses a mine-used four-way explosion-proof and intrinsic safety type direct-current power supply with a communication function, which comprises five non-intrinsically safe AC_DC modules and DC intrinsic safety circuits connected with the non-intrinsically safe AC_DC modules, and is recorded as non-intrinsically safe AC_DC module 0-non-intrinsically safe AC_DC module 4. The non-intrinsically safe AC_DC module 0 is responsible for power supply of a power management module. Two power supplies of the non-intrinsically safe AC_DC module 1 and the non-intrinsically safe AC_DC module 2 are converged through the power management module to form a double-path power supply A. Two power supplies of the non-intrinsically safe AC_DC module 3 and the non-intrinsically safe AC_DC module 4 are converged through the power management module to form a double-path power supply B. The double-path power supply A is fused with a CAN bus and a vehicle-mounted Ethernet unit into an 8-core composite cable. The double-path power supply B is fused with another CAN bus and the vehicle-mounted Ethernet unit into an 8-core composite cable. The power supply internally adopts a four-way power supply parallel mode, can realize power supply with a larger power, has a higher power conversion efficiency, has a lower heat generation, and improves the safety of the power supply system.

This invention provides a wide-bandgap perovskite thin film, a perovskite tandem solar cell, and a method for preparing the same, relating to the field of photovoltaic technology. The method for preparing the perovskite thin film includes: adding a perovskite structural material and an organic additive to an organic solvent to obtain a perovskite precursor solution; spin-coating the perovskite precursor solution onto a substrate; and annealing the substrate to obtain the perovskite thin film. The organic additive includes a material containing a thiophene dioxide framework. The organic additive used in this invention can effectively regulate the crystallization rate of mixed halides, delay crystallization, enhance the uniform distribution of the mixed halide phase, reduce the defect density in the wide-bandgap perovskite thin film, and significantly improve the power conversion efficiency and stability of the solar cell, thereby obtaining a high-performance tandem solar cell.

The present invention discloses a wide-range operation staggered parallel LLC resonant converter and control method, which relates to the field of power electronic conversion technology, including: N LLC resonant conversion units, the LLC resonant conversion units include inverters, resonant networks, transformers and secondary side rectifier circuits connected in series in sequence; the input ends of the N inverters are connected in parallel to the DC input end; the output ends of the N secondary side rectifier circuits are connected in series; wherein the first output end of the first secondary side rectifier circuit serves as the first DC output end, and the second output end is connected to the first output end of the next secondary side rectifier circuit until it is connected to the first output end of the Nth secondary side rectifier circuit, and the second output end of the Nth secondary side rectifier circuit serves as the second DC output end. The power conversion with wide range operation, high power transmission and high step-up ratio is realized, while taking into account the conversion efficiency and inter-phase current sharing.

A tandem photovoltaic device is provided by the present disclosure and relates to the technical field of solar photovoltaic. The tandem photovoltaic device includes a perovskite absorbing layer, a crystalline silicon absorbing layer and a single-layer electrical function layer connected in series to the two absorbing layers; a contact interface between the perovskite absorbing layer and the single-layer electrical function layer is a first series interface; and a contact interface between the crystalline silicon absorbing layer and the single-layer electrical function layer is a second series interface; wherein a conducting type at the second series interface is different from a conducting type at the first series interface, and the difference between the work functions is ≥ -0.3eV and ≤ 0.3 eV. Since the difference of the work functions between the perovskite absorbing layer and the crystalline silicon absorbing layer of the tandem photovoltaic device at the contact interface is ≥ -0.3 eV, and ≤ 0.3 eV, the work functions of the two absorbing layers are matched, the voltage loss caused by the work function mismatch is avoided, and the intermediate series structure does not need energy band buffering and is a single layer, the carrier parasitic absorption caused by the introduction of multilayer electrical function layers may be reduced, and the transmission loss caused by interface resistance and defects reduce is reduced.

The application provides a droop control method and device for an energy storage system in a direct-current microgrid, and the method comprises the following steps: obtaining an initial droop curve; determining a boundary condition of a droop control parameter in the droop curve; establishing a target function with the highest cycle efficiency of the energy storage system in full charging and full discharging as a target; establishing a droop curve optimization model according to the target function and the boundary condition; solving the droop curve optimization model to obtain an optimal solution of the droop control parameter, so as to update the initial droop curve; and controlling the energy storage system by using the updated droop curve. The application can improve the power conversion efficiency of the energy storage system, and improve the economy and service life of the energy storage system and even the entire direct-current microgrid.

The application relates to a flexible charging module control method and device supporting V2G, comprising the following steps: determining whether there is a hard switching risk according to the comparison result of the load power value and the preset threshold value; in the case that there is a hard switching risk, adjusting the resonant frequency of the CLLL topology to the first frequency interval based on a frequency-duty cycle hybrid modulation strategy, making the resonant current phase and the switch tube voltage phase form a preset phase difference, and adjusting the drive signal duty cycle of the primary side switch tube and the secondary side switch tube, so that the conduction time difference of the primary side switch tube and the secondary side switch tube increases with the decrease of the load power value; based on an adaptive frequency spectrum expansion algorithm, the resonant frequency is periodically dithered in the first frequency interval with a preset step, and the dithering period and the switching period of the switch tube are in a nonlinear mapping relationship; the bidirectional power conversion efficiency is improved, the light load hard switching and electromagnetic interference problems are solved, and the reliable operation of the charging module in the V2G scene is ensured.

The utility model relates to the technical field of power supply voltage regulation circuits, and provides a one-way fan direct-current voltage regulation and speed regulation circuit which comprises a direct-current voltage reduction circuit connected with a PWM / DAC weight regulation circuit used for controlling the speed of a direct-current fan. And the step-down chip U1 is arranged in the direct-current step-down circuit and is used for realizing a step-down function in the direct-current step-down circuit. According to the circuit, a direct-current voltage reduction and speed regulation control strategy is optimized, continuity and stability of output voltage are ensured, the common voltage jitter problem in a traditional scheme is avoided, the circuit design effectively suppresses reverse electromotive force, the reliability and safety of a system are improved, meanwhile, the scheme improves the power conversion efficiency, heat is reduced, and the service life of the system is prolonged. The speed regulation control mode is simplified, smooth fan speed regulation is achieved, and the user experience and the energy utilization efficiency are remarkably improved.

The utility model discloses a rectification voltage stabilizing circuit based on 555 timer and reference voltage chip relates to power supply circuit technical field, the circuit in the utility model, provide stable reference voltage through reference voltage chip, according to the duty cycle of the output pulse of comparison result adjustment, can realize the high precision voltage stabilizing output, satisfy the power supply demand of high precision electronic equipment, utilize common 555 timer and reference voltage chip, compared with the dedicated voltage stabilizing chip, the cost is reduced obviously, has higher cost performance, is suitable for large -scale production and application, through the output signal in control 555 timer module, can conveniently adjust output voltage, to adapt to the demand of different load and application scene to voltage, the PWM circuit of 555 timer composition can realize higher power conversion efficiency, reduce power loss, improve the overall performance of circuit.

According to the transmission mechanism based on the sliding groove, the gear and the racks, a main shaft is installed on a support in a shell and one side wall of the shell, the end of the main shaft in the shell is coaxially and rigidly connected with one side face of a sector gear, a rotating arm is arranged on the other side face of the sector gear, and the side face of the rack A and the side face of the rack B are connected with a guide sliding groove through a short column A and a short column B; a guide cylinder at the end of a rotating arm alternately enters and slides out of a guide sliding groove, a sector gear is alternately meshed with a rack A and a rack B, and the middles of the back faces of the rack A and the rack B are rigidly connected with one end of a driving cross beam A and one end of a driving cross beam B correspondingly. A guide rail A and a guide rail B are arranged at the other end of the driving beam A and the other end of the driving beam B and are arranged in a guide groove A and a guide groove B in the inner wall of the shell correspondingly, and connecting rods on the two sides of the driving beam A and the driving beam B and connecting rods at the two ends of a rack A and a rack B are connected with pistons in the cylinder bodies correspondingly. Reciprocating linear motion of each piston is converted into rotating motion of the main shaft through the mechanism.

A flyback converter with a demagnetization signal, a switching control circuit and a control method. The flyback converter includes a first transistor for switching a transformer to generate a primary side switching current and an output voltage, and a second transistor for generating a circulating current to achieve zero voltage switching of the first transistor. When the flyback converter determines that a preset number of switching cycles have been operated in a non-discontinuous conduction mode according to the primary side switching current, the flyback converter actively forces at least one switching cycle to operate in a discontinuous conduction mode. The flyback converter generates a demagnetization signal, wherein the demagnetization signal simulates a demagnetization period of the transformer to control the second transistor during the non-discontinuous conduction mode, and wherein the flyback converter corrects the demagnetization signal according to the demagnetization period during the actively forced discontinuous conduction mode.

The invention relates to a perovskite thin film, a preparation method thereof and a perovskite solar cell. The perovskite thin film contains perovskite and an additive, the additive contains Lewis base and zwitterions. The perovskite thin film is uniform, smooth in surface and high in crystallinity, can be prepared into a large-area perovskite thin film with high quality and good performance, and is further applied to a large-area photovoltaic cell, so that the large-area photovoltaic cell has the advantages of good stability, high conversion efficiency and the like.

The invention relates to the technical field of electronic information boards, in particular to a solar electronic information board which comprises a mounting frame, an electronic screen, stand columns, a top plate, a fixing base, a solar assembly, a wind power generation mechanism, a first inverter, a mounting box, a storage battery pack and a second inverter. The top plate is fixedly connected to the upper ends of the two stand columns, and two wind power generation mechanisms are symmetrically arranged at the upper end of the top plate; according to the solar electronic information board, the two wind power generation mechanisms are integrated on the solar electronic information board, in continuous cloudy days or hazy days, the storage battery pack arranged in the mounting box can provide power support for the electronic information board, and wind energy can be converted into electric energy to be stored in the storage battery pack through the two wind power generation mechanisms; through the design, power can be provided for the electronic information board in the absence of the sun, so that the reliability and the stability of the equipment are improved, and the normal operation of the electronic information board is ensured.

The present application provides a circuit control method, unit and device, the method is applied to a power supply device, the power supply device includes a switching boost circuit, the switching boost circuit includes at least one power semiconductor device, the circuit control method includes collecting the input signal and output signal of the switching boost circuit; according to the input signal, output signal and circuit information of the switching boost circuit, determining the control scheme with the highest power conversion efficiency from multiple control schemes to be selected as the target control scheme, the control scheme to be selected includes the control scheme for the at least one power semiconductor device corresponding to each of the multiple working modes of the switching boost circuit; controlling the conduction and shutdown of the at least one power semiconductor device according to the target control scheme. The present application can adjust the control scheme of the power semiconductor device in real time to improve the overall power conversion efficiency of the circuit.

The invention relates to the technical field of inductors, in particular to a magnetic conductivity gradient controllable laminated power inductor internal structure preparation process and a product thereof, the magnetic conductivity gradient controllable laminated power inductor internal structure preparation process comprises the following preparation steps: S1, a lamination process is adopted to prepare a plurality of FeSiCr prepregs by using FeSiCr slurry, the prepregs used for the first layer and the top layer are not punched, and the rest prepregs are punched; s2, NiZnCuFeO3 slurry is printed on the FeSiCr prepreg, a NiZnCuFeO3 circuit layer is formed, and the circuit layer needs to pass through the holes; s3, an inner electrode wire is printed on the surface of the NiZnCuFeO3 circuit layer, the edge of an inner electrode ring cannot exceed the edge of the NiZnCuFeO3 circuit layer, the inner electrode ring of the first-layer board prepreg does not need to penetrate through the hole, and the inner electrode wires of the other prepregs need to penetrate through the hole; and S4, after the inner electrode wire is printed on the first layer of prepreg, placing the second layer of prepreg, repeating the steps S2-S3, placing the third prepreg, repeating the steps S2-S3, and so on, and finally placing the top layer of prepreg to form a multi-layer structure and obtain the internal structure of the inductor.

The invention discloses a driving circuit and working method of an ultra-low frequency high-voltage generator, which belongs to the technical field of power cable testing, and includes a high-voltage generator and a driver; the high-voltage generator includes a booster, a positive half-cycle magnetic bar coil and a negative half-cycle magnetic bar coil; the booster includes a first coil, a second coil and a rectifier filter discharge circuit, and the positive half-cycle magnetic bar coil and the negative half-cycle magnetic bar coil are both connected to the booster by mutual inductance coupling; the driver includes a positive half-cycle driver and a negative half-cycle driver, and the output ends of the positive half-cycle driver and the negative half-cycle driver are electrically connected to the positive half-cycle magnetic bar coil and the negative half-cycle magnetic bar coil respectively; and the input ends of the positive half-cycle driver and the negative half-cycle driver are connected with a rectifier filter circuit. The invention realizes arbitrary waveform high-voltage output and overall miniaturization and lightweight, and meets the requirement that the ultra-low frequency high-voltage generator needs to output multiple waveforms under different test requirements.

The invention provides an energy storage converter digital control system based on a SiC power device. The energy storage converter digital control system comprises an energy storage converter, an MCU control system and a control circuit. The control circuit comprises an ultrahigh frequency switch driving module, a sampling feedback module, a comprehensive protection module and a system communication module; the energy storage converter is based on a SiC power device; the energy storage converter comprises a DC / AC main circuit, a DC / DC main circuit and a battery pack module. The sampling feedback module collects current and voltage values of the battery pack module and current and voltage values of a direct current bus between the DC / DC main circuit and the DC / AC main circuit. And the MCU control system adopts a PID algorithm to adjust and output a control signal according to the collected current and voltage values, and the working states of the SiC power devices of the energy storage converter are respectively controlled through the ultrahigh frequency switch driving module. The control system integrates ultrahigh frequency switch driving capability, excellent equipment protection performance and full digital control, and has good control precision and response speed.

The present disclosure provides an isolated power chip based on wafer-level packaging, including: a micro-transformer based on RDL, whose primary coil is connected to a DC power supply and outputs a DC voltage input by the DC power supply; a transmitting chip connected to the primary coil of the micro-transformer based on RDL, used to receive the DC voltage and convert it into an AC signal for transmission to the secondary coil of the micro-transformer based on RDL; a receiving chip connected to the secondary coil of the micro-transformer based on RDL, used to convert the AC signal into a DC signal, generate a control signal capable of stabilizing the output voltage according to load changes, and encode the control signal for digital isolation. The present disclosure also provides a method for preparing an isolated power chip based on wafer-level packaging.

This application relates to a portable, self-shielded electron accelerator irradiation device for wastewater treatment, comprising: a portable housing as the main body; an electron accelerator disposed within the portable housing for providing an irradiated electron beam; a wastewater processor disposed within the portable housing and located below the irradiation window of the electron accelerator for receiving the irradiated electron beam and treating wastewater; a sub-beam tank connected to the wastewater processor and located below the electron accelerator for receiving the treated wastewater; a control system disposed within the portable housing and connected to the electron accelerator for controlling the operation of the electron accelerator; and a shielding body that at least covers the irradiation window and the wastewater processor, for at least shielding the irradiation energy of the irradiation window and the wastewater processor. This device is portable and offers significant convenience and efficiency for wastewater treatment.

The invention provides an ultrahigh-frequency bidirectional energy transfer DC / DC converter. The ultrahigh-frequency bidirectional energy transfer DC / DC converter comprises a full-bridge primary main circuit, a high-frequency transformer and a full-bridge secondary main circuit, the full-bridge primary main circuit comprises a bus end and a SiC full-bridge primary module; the bus end is connected with the SiC full-bridge primary module, and the SiC full-bridge primary module is connected with the primary of the high-frequency transformer; the full-bridge secondary main circuit comprises a SiC full-bridge secondary module and a battery module; the secondary of the high-frequency transformer is connected with the SiC full-bridge secondary module, and the SiC full-bridge secondary module is connected with the battery module; and the SiC full-bridge primary module and the SiC full-bridge secondary module respectively adopt a full-bridge topological structure formed by SiC MOSFETs. According to the invention, a primary and secondary full-bridge topological structure mode is adopted, and a SiC power device is adopted as a main power device for energy transfer, so that ultrahigh frequency is realized in a bidirectional energy transfer process, and comprehensive performance such as dynamic characteristics, energy efficiency and power density can be further improved.

The invention relates to the technical field of ocean power generation, and discloses a wave power generation device which comprises a sealed shell, a supporting guide rod, a mounting rod and a pre-installed anchor, the supporting guide rod and the mounting rod are arranged in the vertical direction, and the bottom of the mounting rod is connected with the pre-installed anchor through a connecting piece; the bottom end of the supporting guide rod is detachably installed on the top of the installation rod, the top end of the supporting guide rod is inserted into the shell, the shell can be arranged in a sliding mode in the length extending direction of the supporting guide rod, the shell is of an eggshell type structure in appearance, and a power generation device is installed in the shell. According to the wave energy power generation device, kinetic energy of sea waves and wave energy of other water surfaces are fully utilized, vertical or horizontal movement of the sea waves is converted into rotation movement in a mechanism, the generator set in the buoy is driven to convert the kinetic energy into electric energy, and conversion of the kinetic energy and the electric energy is achieved as long as the waves are generated. The power conversion efficiency of the whole device is high, the applicability is high, and the application range is wider.

The invention discloses an anti-radiation super-junction power MOS device and a preparation method thereof, the device comprises a substrate layer, a buffer layer and an epitaxial layer which are sequentially stacked from bottom to top, a plurality of super-junction columns arranged at intervals are arranged in the epitaxial layer, and a body region is arranged above each super-junction column; a hole doping region and a source doping region which are in contact with each other are arranged in the body region; a gate oxide layer is arranged on the upper surface of the epitaxial layer, and the lower surface of the gate oxide layer is in contact with part of the upper surfaces of the epitaxial layer, the body region and the source doping region; the upper surface of the gate oxide layer is covered with a polycrystalline silicon layer, and the gate oxide layer and the polycrystalline silicon layer form a gate electrode; and an interval doping injection region is also arranged on the epitaxial layer which is not covered by the gate oxide layer between the adjacent body regions. According to the invention, through the interval doping injection region, the hole gathering number below the gate oxide region after particle incidence can be reduced, and the SEGR capability is improved; the current passing through a parasitic transistor base region resistor is reduced, and the threshold value of SEB is improved.