73 results about "Displacement current" patented technology

The invention discloses a non-contact voltage inversion optimization method and system based on a displacement current method, and relates to the technical field of power distribution network voltage measurement, and the method is characterized in that an equivalent circuit diagram of a double-coupling mechanism is drawn based on the displacement current method; determining an initial inversion model of the line voltage according to a transfer function between the measurement current and the line voltage in the equivalent circuit diagram, and determining the sensitivity of each measurement parameter in the initial inversion model by analyzing an error transfer and amplification mechanism; determining an error influence coefficient according to the error partial derivative of the sensitivity of each measurement parameter; determining a tangent line of the error influence coefficient at the minimum fluctuation value in the measured data, and describing the error influence coefficient in the initial inversion model by using the tangent line to obtain an optimized inversion model; and inputting the measured data into the optimized inversion model, and performing inversion to obtain the line voltage. According to the invention, high-precision non-contact voltage measurement is realized by reducing the parameter sensitivity.

The invention discloses a magnetic suspension compressor and a control method and device thereof, a storage medium and a computer program product. The method comprises the steps that more than one disturbance is introduced, and control parameters of a displacement current double-closed-loop control system are adjusted; obtaining rotor displacement and stator coil current of the magnetic bearing, obtaining control parameters, the rotor displacement and the stator coil current corresponding to all disturbances, and recording the control parameters, the rotor displacement and the stator coil current as a first data set; training and testing by using more than two preset training models based on the first data set to obtain an initial control parameter prediction model; compressor operation parameters and unit operation parameters are obtained, and input and output of the initial control parameter prediction model, the compressor operation parameters and the unit operation parameters are recorded as a second data set; training and testing are conducted again based on the second data set, and the updated control parameter prediction model is obtained. According to the scheme, the control parameter prediction model is obtained by using more than two preset training models, the bearing control performance is improved, and the operation stability is ensured.

The invention belongs to the technical field of electromagnetic exploration and numerical simulation. According to the ultra-wide-band electromagnetic method anisotropic medium three-dimensional forward modeling simulation method and system, on the basis of a vector finite element method, electric field equations of unified traditional current and displacement current are discretized, influences of any anisotropic conductivity, any anisotropic dielectric constant and magnetic conductivity are fully considered, and the three-dimensional forward modeling simulation of the anisotropic medium based on the electromagnetic method is achieved. And a basis is provided for theoretical research, field investigation and data inversion of an ultra-wideband electromagnetic method.

The transformer coil winding comprises an insulating resin barrel, a first coil winding, a second coil winding and a shielding element, and the invention further relates to a dry type transformer with the transformer coil winding. According to the dry-type transformer, the shielding element is arranged, so that when the first coil winding and the second coil winding are electrified, at least one part of displacement current in the insulating resin barrel is grounded through the grounding end of the shielding element, the safety distance of the dry-type transformer is reduced, and therefore the space occupied by the dry-type transformer in the using process is reduced; and therefore, the safety of the dry-type transformer in the use process is improved.

The invention discloses a method for determining electromagnetic stirring parameters of a continuous casting bloom, which comprises the following steps of: collecting field technical parameters and steel type parameters, and establishing a continuous casting bloom solidification heat transfer model to obtain a continuous casting bloom solidification end point position, a center solid fraction and a surface temperature; for the tail end electromagnetic stirring process, reasonable condition assumption is carried out on a general physical model, and the influence of displacement current and molten steel movement on an electromagnetic field is neglected in calculation as analog; calculating an electromagnetic stirrer of the bloom continuous casting machine, and modeling and simplifying; calculating electromagnetic field distribution characteristics in the casting blank of the bloom crystallizer by utilizing the established model; and comparing calculation based on the model with material object sampling analysis, and performing corresponding electromagnetic force adjustment according to a comparison result so as to finish final determination of electromagnetic stirring parameters. By adopting the parameter determination method, proper electromagnetic stirring current and other parameters can be optimized and determined so as to improve bloom segregation and internal quality.

A semiconductor or other substrate can include one or more electrodes, located directly or indirectly on the substrate, separated from each other and coupled to the substrate. At the two or more electrodes, non-zero frequency time-varying electrical energy can be received. The time-varying electrical energy can be coupled via the two or more electrodes to trigger a displacement current to activate free carriers confined within the semiconductor substrate to generate frequency-controlled heat in the semiconductor substrate.

The invention relates to a method for calculating the power-on and power-off delay time performance of an electromagnetic valve, and the method comprises the following steps: obtaining the mass of a valve element of the electromagnetic valve, the spring stiffness and coil resistance data; establishing an electromagnetic valve equivalent circuit model, and listing a current equation; establishing an electromagnetic valve magnetic circuit mathematical model, and listing a magnetic field equation set; establishing an electromagnetic valve flow field mathematical model, and listing a flow field equation set; establishing a kinematic model of the electromagnetic valve, and listing a kinematic equation; using a finite element method to obtain a valve core electromagnetic force-displacement-current data table and a coil inductance-displacement-current data table; a finite element method is used for obtaining a valve element aerodynamic force-displacement data table; and obtaining the power-on and power-off delay time through data analysis processing and solving of the partial differential equation set. According to the method, prediction of the opening and closing delay response time of the electromagnetic valve is more accurate, visual adjustment in the simulation process is achieved, and the time for obtaining the response time of the electromagnetic valve and the test cost are greatly reduced while the preset precision requirement is met.

The invention discloses a turn-off delay time detection device and a turn-off delay time detection method for on-line junction temperature detection, and aims to solve the contradiction between high voltage tolerance and accurate detection of a low voltage part in a traditional detection method and realize reliable on-line detection of the junction temperature of a power switch device. Comprises: a displacement current extraction circuit detects a capacitor element current having a function relationship with voltages at two ends of a detected power switch device, and outputs an electric signal containing current information; the starting moment detection circuit receives a grid voltage signal and detects a starting moment according to the standard that the grid voltage drops to 90% of a high level, and the ending moment detection circuit receives a current information electric signal and detects an ending moment according to an experimental calibration threshold; the turn-off delay time extraction circuit generates a signal containing delay time based on the time information; the controller calculates the junction temperature according to the calibration relation between the delay time and the junction temperature. High-voltage impact is avoided through indirect current detection, all links are accurately matched, and the device is suitable for various circuit scenes and has low cost and high reliability.

This invention provides an air conditioner, relating to the field of electrical technology. The air conditioner reduces electromagnetic interference by modifying the transformer. The air conditioner includes: a substrate; the substrate includes an electromagnetic compatibility (EMC) module; the EMC module includes a transformer; the transformer includes: a magnetic core, a primary winding and a secondary winding sequentially wound around the magnetic core; the transformer further includes: a first shielding winding and / or a second shielding winding; the first shielding winding is located between the magnetic core and the primary winding, and the second shielding winding is located between the primary winding and the secondary winding; the windings of the first shielding winding and the primary winding are opposite; wherein the primary winding generates a first displacement current to the first shielding winding, the magnetic core generates a second displacement current to the first shielding winding (the two currents are in opposite directions), the primary winding generates a third displacement current to the second shielding winding, and the secondary winding generates a fourth displacement current to the second shielding winding (the two currents are in opposite directions). This invention is used to reduce electromagnetic interference.

The invention discloses a shielded cable electricity testing method based on ground loop impedance potential lifting, and relates to the technical field of measurement. The electroscope comprises an electricity testing step, an induction electrode on the cambered surface of the electroscope is used for obtaining induced electricity, a broadband direct sampling framework is formed on the physical level, and broadband direct sampling of millivolt-level power frequency displacement current characteristics is achieved. Based on a variational mode decomposition-Duffing oscillator fusion weak signal extraction algorithm, a variational mode decomposition algorithm is utilized to adaptively strip broadband noise and higher harmonics, a reconstructed signal is subjected to scale normalization and then introduced into a critical chaotic state Duffing oscillator algorithm, phase transition of a phase track from a chaotic attractor to a large-scale limit cycle is monitored, and a weak signal is extracted. A non-linear dynamic weak signal extraction algorithm is formed on the algorithm level, and weak power frequency features masked by strong noise are accurately recognized; a broadband direct acquisition framework and a weak signal extraction algorithm form a dual detection framework, and a quasi-induction electric signal is detected and judged in the live part verification process of the shielded cable.

The invention discloses an electric field response type self-energy-taking system based on harmonic voltage of a high-voltage direct-current transmission line. An electric field induction energy taking device collects the harmonic voltage of the high-voltage direct-current transmission line based on the Maxwell displacement current principle; the rectifier is arranged between the electric field induction energy taking device and the high-voltage direct-current power transmission line and is used for converting induction alternating current into induction direct current; and the energy storage capacitor stores the induced direct current. According to the energy taking system, a periodic alternating electric field caused by harmonic voltage in a high-voltage direct-current transmission line is induced, the harmonic voltage of the high-voltage transmission line is converted into alternating current on the basis of the Maxwell displacement current principle, and available energy is obtained in a non-contact mode. Electric energy is converted and stored through the rectifier bridge and the energy storage capacitor, rectification conversion and energy storage are achieved, and then stable power supply support is provided for loads such as various low-power-consumption sensors or monitoring equipment on a power transmission line.

This invention provides a method and system for three-dimensional high-frequency controllable source electromagnetic numerical simulation with dual-source excitation. The method constructs a single-source electromagnetic field grid model and a three-dimensional spatial domain total field equation, converting it into a quadratic field control equation by separating the primary and secondary fields. Fourier transform is used to transform the equations to the wavenumber domain, and shape function interpolation is performed iteratively to obtain the wavenumber domain numerical solution. A single-source forward excitation solution is obtained through inverse Fourier transform. A single-source reverse excitation solution is obtained by reversing the current direction. Finally, the forward and reverse solutions are vector-superimposed to obtain the dual-source excitation simulation result. This invention solves the technical problems of existing technologies, such as simulation distortion caused by neglecting displacement current in the 100kHz-10MHz frequency band, numerical calculation interference from field source singularities, and low spatial resolution of complex underground anomalies under single-source excitation. By simulating gradient field response characteristics through dual-source reverse superposition, the sensitivity and exploration resolution of underground target boundaries are significantly improved.

The invention discloses synaptic circuits, a method, equipment and a medium for avoiding displacement current of a ferroelectric tunnel junction, and relates to the technical field of pulse neural networks, the synaptic circuits and the post-neuron circuit are of the same structure, the synaptic circuits are used for generating tunneling current when voltage difference exists at two ends of the ferroelectric tunnel junction, and the post-neuron circuit is used for generating the displacement current when voltage difference exists at two ends of the ferroelectric tunnel junction. An internal capacitor in the ferroelectric tunnel junction is controlled to discharge, the voltage in the synaptic circuit is raised, and a charging voltage is output when a pre-synaptic neuron pulse signal is received; the post neuron circuit is respectively connected with the plurality of synaptic circuits and is used for outputting post-synaptic neuron pulse signals according to the accessed charging voltage; and the synaptic circuit is also used for changing the voltage amplitude applied to the two ends of the ferroelectric tunnel junction according to the time interval between the received post-synaptic neuron pulse signal and the input signal, so that the reading error and the pulse neural network application bottleneck caused by the capacitance current characteristic and the resistance current characteristic of the ferroelectric tunnel junction are solved.

The invention discloses a non-contact voltage high-precision inversion optimization algorithm, and belongs to the technical field of distribution network voltage measurement, and the algorithm comprises the following steps: designing a non-contact voltage sensor probe of a double-coupling mechanism based on a displacement current method, obtaining the voltage of a to-be-measured line through measuring the value of displacement current, and obtaining the voltage of the to-be-measured line based on the voltage sensor probe. The method comprises the following steps: acquiring response voltage signals in different periods through an MOSFET gating measurement loop, establishing a voltage measurement model considering frequency deviation of a power system, and correcting phase angle deviation caused by frequency deviation and estimating voltage by adding a response equation and a Newton iteration algorithm; the method can optimize the performance of the sensor probe, and has the advantages of prominent deployment safety and convenience, high environment and system adaptability, remarkably improved measurement precision, efficient and reliable algorithm and the like.

This application discloses a transformer, a switching power supply, and an air conditioning device. By setting a first shielding layer between the magnetic core and the primary winding, and electrically connecting the first shielding layer to the primary ground, the magnetic core potential is clamped to the primary ground potential, thereby eliminating the displacement current of the magnetic core to ground. An auxiliary winding is set between the primary winding and the secondary winding. The corresponding terminals of the auxiliary winding are opposite to those of the primary winding. The auxiliary winding is connected to the primary ground. The auxiliary winding includes Nb turns of coil, the primary winding includes Np turns of coil, and the secondary winding includes Ns turns of coil, where 2Nb≤3Ns-Np. In this way, a reverse displacement current can be actively created inside the transformer to offset the original interference current, thereby significantly reducing the net current flowing to ground.

The invention relates to the technical field of air sterilization and discloses a distributed multi-stage plasma air sterilization system and method applied to a large space, and the distributed multi-stage plasma air sterilization system comprises an air flow channel, multi-stage plasma generation modules distributed in the air flow channel, and a pulse driving circuit, each stage of plasma generation module comprises a dielectric barrier discharge electrode, the pulse driving circuit detects a charge composite waveform in an electrode gap in a pulse fallback stage so as to obtain a displacement current recovery time constant, and the secondary ozone concentration and the space charge characterization quantity in a flow channel are determined according to the deviation between the constant and a recovery reference. According to the invention, the self-limiting feedback of the product is realized by utilizing a discharge physical process, the contradiction between the disinfection yield demand and the ozone safety threshold value in a large-space environment is effectively reconciled, and the energy self-limiting performance is improved. And the operation safety of the distributed system in a complex environment is ensured.

The invention belongs to the field of power electronics, and discloses an active clamping circuit and method for inhibiting crosstalk of a silicon carbide MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor), symmetrical dual active clamping driving sub-circuits are adopted, and each sub-circuit responds to a driving signal through a control tube and dynamically manages the on-off state of a clamping tube. When the first silicon carbide MOSFET is conducted to cause crosstalk, the control tube on the turn-off side is cut off to enable the clamping tube to be conducted, the gate-source voltage of the second silicon carbide MOSFET is clamped to negative voltage, and forward misconduction and negative breakdown are avoided; during the turn-off period of the double tubes, displacement current is discharged by a low-impedance path of the clamping tube; when the second silicon carbide MOSFET is conducted, the control tube is turned on to turn off the clamping tube, and the voltage clamping is relieved. The circuit overcomes the defects that gate pole resistance affects the switching speed, passive clamping lacks dynamic response and external signal delay exists, and the switching speed, the system reliability and the control cost are considered while crosstalk peaks are restrained; not only is the high-frequency switching advantage of the silicon carbide MOSFET maintained, but also the safety of the grid electrode is protected through accurate voltage clamping.

The invention relates to the technical field of solution detection, in particular to a solution concentration detection device and method.The solution concentration detection device comprises a self-power-generation module, an energy storage module, a detection module and a signal processing module which are installed on a solution circulation pipeline, and a solution to be detected flows through the solution circulation pipeline to drive the self-power-generation module to generate power; the energy storage module adjusts, distributes and controls electric energy, the energy storage module sends an electric signal to the emitter, the electric signal emitted by the emitter passes through a solution to be detected and then is received by the receiver, and the signal processing module processes and calculates the electric signal received by the receiver to obtain the concentration of the solution to be detected. Mechanical energy generated by chemical substances in the solution is converted into electric energy through the displacement current effect, the solution concentration is detected, compared with a traditional solution concentration detection method, the device has the advantages of being simple in structure, free of an external power source, low in cost, easy to operate, capable of achieving real-time monitoring and the like, and self-powered solution concentration detection can be achieved; and the application scene is expanded.

To provide a non-contact voltage phase detection device capable of accurately detecting the voltage waveform of a power line while reducing a phase error.SOLUTION: A non-contact voltage phase detection device includes capacitive coupling sensors 210, 220 of the R-phase and T-phase that are respectively capacitively coupled with power lines 10, 20 of the R-phase and T-phase of a three-phase AC power supply; detection circuits 310, 320 of the R-phase and T-phase which respectively convert the displacement currents flowing through the capacitive coupling sensors 210, 220 of the R-phase and T-phase into first and second detection voltages; and a differential circuit 130 which calculates the difference between the first and second detection voltages to output the R-T voltage waveform. The device includes a correction circuit which amplifies the detection voltages of the R-phase and T-phase by the amplification ratio being the reciprocal of the capacitance ratio so as to bring the capacitance ratio between the coupling capacitance of the R-phase in a capacitively-coupled part between the power line 10 of the R-phase and the capacitive coupling sensor 210 of the R-phase and the coupling capacitance of the T-phase in a capacitively-coupled part between the power line 20 of the T-phase and the capacitive coupling sensor 220 of the T-phase close to 1:1.SELECTED DRAWING: Figure 5

The application discloses a kind of cable branch box electromechanical collaborative test method, its steps are: using random mechanical excitation force in external environment as passive test source, three-dimensional acceleration mechanical vibration wave and metal shielding ground line wideband weak current of box shell are synchronously collected, and double-mode time sequence is generated;Based on coherent integration algorithm, filter out power frequency induction component, extract induced displacement current and calculate electromechanical conversion coupling coefficient matrix;Using Fourier transform fitting dielectric relaxation response rate, output frequency-dependent dielectric relaxation characteristic vector;Response rate is mapped to different physical depth of insulating layer by combining radial propagation sound path difference model, and radial space charge concentration gradient parameter is output;Based on Poisson equation, reconstruct micro electric field stress distortion curve by reverse integration;Extract maximum stress peak value and compare with dendritic breakdown threshold value, and automatically output adaptive adjustment instruction.The application does not need to apply electrical excitation additionally, and can passively perceive internal space charge distribution and electric field stress distortion of insulating medium.

This application relates to a high-precision non-invasive voltage measurement method, apparatus, computer device, and storage medium based on dual-frequency injection. The method includes: injecting a first detection signal and a second detection signal into a measurement circuit; acquiring a displacement current signal in the measurement circuit; performing signal separation on the displacement current signal based on the signal frequency to obtain a first detection current, a second detection current, and a rated current; and determining the voltage to be measured based on the rated current, the detection voltage, the first detection current, and the second detection current. By injecting the first and second detection signals into the measurement circuit, and obtaining the first detection current, the second detection current, and the rated current based on the obtained displacement current signal, the voltage to be measured is finally determined using the rated current, the detection voltage, the first detection current, and the second detection current. By injecting two reference signals of different frequencies, the influence of resistance and inductance in the measurement circuit can be effectively offset, thereby improving the accuracy of voltage detection.

According to the 4H-SiC MOSFET chip and the main junction region structure and the manufacturing method thereof, the main junction region structure of the 4H-SiC MOSFET chip is characterized in that an N-drift layer is formed on a substrate, a P well is embedded in the N-drift layer, a field oxide layer is arranged on the surface of the P well, the field oxide layer is divided into a plurality of field oxide blocks within the range of the P well, electric field distribution of a transition region is optimized, and the field effect of the N-drift layer is improved; electric field peak intensity is weakened, electric field concentration is avoided, dynamic avalanche breakdown probability is reduced, chip breakdown voltage performance is guaranteed, capacitance distribution of a transition area is adjusted, coupling effect of parasitic gate-drain capacitance is reduced, displacement current is reduced, gate misconduction is avoided, and local temperature rise and stress of the transition area are relieved. The stress transition layer is arranged between the field oxide layer and the P well, thermal expansion and cold contraction differences are reduced, the interface matching performance is improved, the stress transition layer is matched with the field oxide layer, thermal stress concentration can be reduced, the interface crack and stripping risk is remarkably reduced, and the structural stability of the main junction region is improved.

This invention discloses an adaptive compensation voltage divider device based on self-powered bushing end screen. It includes an energy acquisition module that obtains displacement current from the bushing end screen side as power for the voltage monitoring device, and uses a clamping network to protect the circuit from overvoltage damage, converting the AC signal into DC energy. A modulation output module adjusts the equivalent impedance according to the characteristics of the downstream load to optimize power conditions, stores electrical energy, and outputs a measurement signal corresponding to the bushing operating voltage in a timely manner. An adaptive compensation module calculates the operating voltage based on the voltage sampling signal, dynamically updates the compensation coefficient to ensure the accuracy and stability of the voltage divider ratio, and monitors system status feedback information to update the compensation parameters. Implementing this device ensures the accuracy and stability of voltage monitoring, eliminates interference from external leads, and significantly improves the system's anti-interference capability and long-term operational reliability.

The utility model provides a power generation cylinder device, and belongs to the technical field of power generation devices. The device comprises an outer cylinder, an inner cylinder, a friction layer, an energy collector and a driving device, a cylinder body is driven by the driving device to relatively move, so that the friction layer and the cylinder are rubbed or collided to generate a changing electric field, the changing electric field generates Maxwell displacement current, electric field energy is collected through the energy collector, and the energy collector is used for collecting the electric field energy. Therefore, various mechanical energy (including human body movement energy, wind energy, water energy and mechanical energy generated by a machine) in the environment can be converted into electric energy. The device can also be used for voltage stabilization and rectification through the management circuit so as to meet different electricity demands. By utilizing the creative power generation principle, the device has the advantages of being easy to manufacture, low in cost, high in power generation efficiency and the like, various mechanical energy in life can be effectively collected and converted into electric energy, and large-scale application and popularization are facilitated.

By forming a gate lead-out part (232) so as to cover a position (P3) that is at the furthest distance within an inner end portion (241a) of a field insulation film (24) from a contact region (20), electrical field concentration when generating a displacement current is reduced, and dV / dt capability is increased.

The application provides a transient voltage suppressor based on path decoupling and electric field coupling triggering and a manufacturing method thereof. The transient voltage suppressor comprises at least one device unit. The device unit comprises a first electrode and a second electrode, a triggering unit, a main turn-on unit and a coupling unit. The triggering unit comprises a second-conductivity high-doped region and a first-conductivity high-doped region. A local PN junction region is formed between the second-conductivity high-doped region and a first-conductivity low-doped drift region, and the first-conductivity high-doped region is arranged on a coupling dielectric layer. When the local PN junction region is subjected to avalanche breakdown, displacement current is formed through the coupling dielectric layer and coupled to the main turn-on unit, thereby triggering the main turn-on unit to form a longitudinal low-resistance main turn-on path. The main turn-on unit is in a high-resistance state under a static bias condition, so that the static equivalent junction capacitance of the device is mainly determined by the local PN junction region, thereby balancing low junction capacitance, low dynamic resistance and high surge current bearing capacity.

The application belongs to the technical field of electromagnetic prospecting and numerical simulation, and provides a three-dimensional forward simulation method and system for anisotropic medium of electromagnetic method with ultra-wide frequency band, which is based on the vector finite element method, discretizes the electric field equation of unified traditional current and displacement current, fully considers the influence of arbitrary anisotropic conductivity, arbitrary anisotropic dielectric constant and magnetic conductivity, and provides a basis for the theoretical research, field survey and data inversion of the electromagnetic method with ultra-wide frequency band.

The invention discloses a heat dissipation shielding device packaging structure and a process thereof. The process comprises the following steps: mounting a film block on a substrate, stacking a metal block on the film block, integrally packaging and grinding to expose the metal block, etching a packaging material to form a groove, and exposing the surface of the substrate at the bottom of the groove; an adhesive layer is coated on the etched covering surface, and an adhesive layer is also coated in the groove; electroplating a circuit: electroplating a circuit layer on the surface of the adhesive layer along the adhesive layer coating path, and continuing to encapsulate the adhesive layer and the circuit layer; turning over the whole packaging body up and down, exposing the adhesive layer at the position of the film block and the groove, removing the film block, horizontally grinding the surface until the circuit layer at the groove is exposed, and exposing the metal block at the same time; according to the invention, the circuit layer is used as an internal shielding structure, the displacement current is absorbed and guided to the ground, the near-field intensity is reduced, the internal parasitic coupling is inhibited, the distribution of a local electric field is controlled, and a first barrier is formed.

The utility model discloses a high-frequency transformer common-mode noise testing circuit and electronic equipment, and belongs to the technical field of common-mode noise testing. The voltage following circuit is used for isolating and following the excitation signal so as to output the isolated and followed excitation signal; a displacement current is generated between the primary winding with the minimum number of turns in the transformer and the secondary winding under the excitation of the isolated and followed excitation signal; wherein the displacement current is the current between the primary static point and the secondary static point after the primary static point is short-circuited, and the primary static point and the secondary static point are both points with constant voltage; the detection circuit is used for sampling displacement current to output detection voltage; therefore, the possibility that the inductance of the transformer interferes with the excitation signal accessed by the primary winding with the fewest turns is reduced, and the accuracy of the test result is improved.

The invention discloses an electric field energy taking device and method, and the device comprises an energy taking pole plate which comprises an inner pole plate and an outer pole plate, the inner pole plate is arranged adjacent to a power transmission line, the outer pole plate is arranged at the periphery of the inner pole plate in a grid-shaped structure, and a rectification circuit which is connected with the inner pole plate and the outer pole plate and is used for converting a space displacement current Id into a conduction current Ic, the energy storage capacitor is connected to the output end of the rectifying circuit; wherein the outer polar plate is physically cut to form at least two independent grid-shaped units, and equivalent distributed capacitance Ch is increased by utilizing an edge effect, so that the energy taking efficiency per unit area is improved under the condition that the total area of the polar plate is reduced. The grid-shaped electric field energy taking pole plate and the energy taking method thereof have the beneficial effects that the equivalent distributed capacitance is increased by actively utilizing the fringe effect through three specific grid-shaped structure designs of a beam-shaped structure, a ring-shaped structure and a beam ring composite structure, so that the original energy taking efficiency is still kept when the area of the pole plate is reduced by 10%, and the energy taking efficiency per unit area is improved by more than 10%.