187 results about "Coupling effect" patented technology

The invention discloses a multi-disaster disaster risk grade coupling evaluation method. The method comprises the following steps: establishing a multi-dimensional database covering multiple disaster types; key features related to the disaster risk are extracted from the multi-dimensional database; establishing a risk assessment model according to the key features, and determining a plurality of single-disaster risk levels; identifying association rules, causal relationships or space-time coupling modes among different disasters by using a big data mining algorithm; coupling weights among different disasters are determined, and a coupling model is constructed to convert a coupling relation into a quantitative risk superposition effect; based on the coupling model, a single-disaster risk and a coupling effect are integrated, a multi-disaster comprehensive risk level is generated, through multi-dimensional data integration, quantitative coupling modeling and a dynamic adjustment mechanism, advantages are formed in evaluation precision, social and economic adaptability and model adaptability, and the method is more suitable for scenes needing accurate risk grading and decision support.

The invention discloses a multi-axis multi-field coupling fatigue test device, and belongs to the technical field of material testing. The device comprises a rack, a multi-axis loading unit, an environment simulation unit, a dynamic sealing interface and a cooperative control system. The core of the device is that the test sample can simultaneously bear the coupling effect of multi-axis mechanical stress (pulling, pressing and twisting) and various environmental fields (such as high and low temperatures, corrosive media, illumination and electric fields) through a highly integrated design; and the dynamic sealing problem of the actuator rod in the environment box is solved through an innovative dynamic sealing interface (such as labyrinth-magnetofluid composite sealing). According to the invention, accurate linkage control of multiple channels is realized through the cooperative control system, the service environment of key parts under actual complex working conditions can be truly simulated, and a reliable test platform is provided for failure analysis and life prediction of products under multi-field coupling.

According to the cold region slope multi-field coupling effect simulation test device and method, the device is composed of a freeze-thaw environment test box, a slope model, an anchor rod axial loading system, a crack water injection assembly and a multivariate data monitoring system, and the multi-physical field coupling effect of freeze-thaw cycle, crack water permeation and long-term creep can be simulated. By dynamically adjusting the temperature gradient and graded loading parameters, data of a stress field, a temperature field and a displacement field can be collected in real time, the influence of different freeze-thaw conditions and creep drawing loads on a slope damage mechanism can be analyzed, a key test means is provided for revealing the strain rate effect, the aging deformation characteristics and the instability criterion of the slope in the cold region, and the test efficiency is improved. The method has an important guiding value for stability evaluation and disaster prevention and control of the cold region slope engineering.

The invention discloses a U-shaped aqueduct prestress multi-beam cooperative tensioning control method and system. The method comprises the steps that S1, a quantitative derivation model is constructed, based on an aqueduct structural mechanical equilibrium equation, a prestress coupling effect item is introduced for calculation, a prestress coupling matrix is output, and an initial tensioning sequence is derived; the device is simple in structure, and an initial tensioning sequence is deduced by establishing a mechanical equilibrium equation and introducing a coupling effect item; meanwhile, stress / displacement deviation data collected by a monitoring system in real time are fed back to an edge calculation terminal to calculate a control strategy in real time, adjustment is executed by a tensioning device, and therefore a field data closed-loop optimization mechanism is constructed, the tensioning force and sequence can be dynamically corrected, the limitation of a static model is broken through, and the construction efficiency is improved. And a displacement constraint term is introduced as a punishment or control condition in the optimization process, so that deformation overrun of key parts of the structure is effectively prevented, and the precision, safety and intelligent level of prestress construction are remarkably improved.

The invention discloses an ultra-high-temperature heavy-load self-aligning roller bearing optimization design method and system based on a particle swarm algorithm, belongs to the field of rolling bearing optimization design, and solves the problems that a traditional bearing design process is low in efficiency, and multi-target collaborative optimization is difficult to achieve. And the design method combining the empirical formula and the finite element model is poor in precision due to the strong coupling characteristic of the material nonlinearity, the thermal coupling effect and the bearing performance under the ultra-high-temperature heavy-load working condition. The method comprises the following steps: S1, determining a bearing parameter, a working condition parameter and a particle swarm algorithm parameter; s2, establishing an optimization model of the ultrahigh-temperature heavy-load self-aligning roller bearing: S21, establishing a target function; s22, determining a design variable; s23, establishing a constraint equation; and S3, optimizing corresponding parameters of the bearing by adopting a particle swarm algorithm to obtain an optimization result. The method is suitable for a self-aligning roller bearing optimization design scene.

The invention relates to the technical field of power equipment fault detection, in particular to a fault detection method for a cable branch box, and aims to solve the problems that a single monitoring means is generally adopted in a traditional method, corrosion of connecting pieces is accelerated by condensation in the box, and the coupling effects such as insulation performance reduction in a high-temperature environment cannot be effectively recognized. Through multi-modal data acquisition, dynamic threshold adjustment and fusion model analysis, coupling analysis of the cable state and the environmental parameters is realized, the problems of data splitting, early warning lag and positioning fuzziness of a traditional method are solved, and the method has the advantages of integrating multi-dimensional monitoring data, dynamically adjusting a fault judgment standard and improving fault positioning precision.

The invention provides a surrounding rock creep anchor rod timeliness test system under a high ground stress-high temperature coupling effect, and the system comprises a sample, an anchor rod drawing loading system, a confining pressure pressurization assembly, a heating assembly and a data monitoring assembly, and the confining pressure pressurization assembly and the heating assembly apply confining pressure and a temperature field to the sample; the high ground stress-high temperature coupling environment of the deep composite rock mass is simulated, a sample is placed in the high ground stress-high temperature coupling environment of the simulated deep composite rock mass, various parameter data of the sample are detected in real time through the data monitoring assembly, and then various parameter data monitored by the data monitoring assembly in real time are analyzed, so that the high ground stress-high temperature coupling environment of the deep composite rock mass is simulated. The influence of the creep effect of the deep composite rock mass on the anchoring performance of the anchor rod is deeply researched, so that the anchoring interface damage evolution rule under the multi-strain-rate coupling effect is disclosed.

The invention relates to the technical field of hydraulic pump simulation, and discloses a hydraulic pump airtightness multi-physics coupling simulation method. According to the method, a three-dimensional geometric model is established based on structural parameters of the hydraulic pump, multi-physical field coupling boundary conditions such as a fluid field, a temperature field and a stress field are set, and then dynamic grid division is performed to generate an adaptive grid topological structure. And inputting the boundary conditions into a coupling solver, carrying out iterative calculation to obtain initial simulation data, optimizing the grid model according to residual error distribution, executing multi-field coupling simulation calculation by utilizing the optimized model, and outputting a result. Wherein the coupling solver is trained and constructed through historical experimental data, grids can be locally encrypted or sparsely processed, simulation results are classified and stored, an access key is set to guarantee safety, and the solver can be optimized according to different working conditions. According to the method, the multi-physical field coupling effect can be comprehensively considered, the simulation precision and the calculation efficiency are improved, and effective support is provided for air tightness research and design optimization of the hydraulic pump.

The invention provides a dangerous rock degradation and collapse simulation test system and method under a multi-field coupling effect, and the system comprises a flexible stress loading device which provides a vertical stress for a dangerous rock mass sample to enable the sample to have the same stress level as a natural state; a dangerous rock mass sample is used for simulating various collapse modes by controlling the angle of a soft belt and a hollowed-out area; the corrosion device is used for providing a dry-wet cycle and osmotic pressure environment for the dangerous rock mass sample; the data acquisition device is used for recording surface displacement, acoustic characteristics and external factors of the rock mass along the soft zone; the damage degree calculation device is used for calculating the damage degree of the dangerous rock mass under multi-field coupling; the safety coefficient calculation device is used for obtaining the safety coefficient of the dangerous rock mass under multi-field coupling; and the safety evaluation device is used for constructing an evaluation model and evaluating the safety state of the dangerous rock mass. According to the method, collapse simulation caused by degradation of the soft belt under the multi-field coupling effect is achieved, and the problems of early-stage safety evaluation and graded early warning of dangerous rock instability based on multi-index fusion are solved.

The invention provides a temperature control method and device of ALD equipment and electronic equipment, relates to the technical field of general control or regulation systems, and aims at controlling the power of a heating device in the ALD equipment at the next moment so as to control the temperature in a reaction chamber of the ALD equipment. Dynamically estimating a control parameter generated by a control output signal through a recursive least square algorithm according to a temperature measured value at the current moment, the control output signal at the previous moment, a parameter error estimation covariance and a corresponding forgetting factor; furthermore, decoupling processing is carried out on the coupling effect between the heating devices based on a decoupling algorithm, so that mutual influence between the temperature zones is brought into the control process in the temperature control process of the ALD equipment, decoupling compensation is realized from the aspect of algorithm, the purpose of optimizing the temperature control effect is achieved, the time for waiting for temperature stability is shortened, and the temperature control efficiency is improved. And the temperature control efficiency is improved.

The invention discloses a chip parameter verification method and device, equipment and a storage medium. The chip parameter verification method comprises the steps of sampling a to-be-tested parameter space of a chip to obtain a parameter point file; performing a regression test on the parameter point file to obtain verification test results, and associating each verification test result with the corresponding parameter point to obtain a data pair set; performing parameter point iteration prediction on the set through a model according to the data; and when it is determined that the predicted parameter points meet the optimization target, taking the predicted parameter points as to-be-applied target parameter points of the chip. The parameter point file is obtained by sampling from the to-be-tested parameter space, and the sampling result is used for the regression verification test, so that the number of tasks needing to be executed is reduced, the overall verification investment is reduced, fitting and prediction are carried out through the model according to the verification test result, the coupling effect and hidden defects among parameters are conveniently found, and the verification efficiency is improved. And the accuracy of the determined target parameter is improved.

An intelligent compensation method for coupling errors of a dynamic gravimeter comprises the following steps: selecting typical environment interference influencing the dynamic gravimeter in a complex measurement environment, and analyzing an influence mechanism of each typical environment interference on the measurement accuracy of the dynamic gravimeter; according to the influence mechanism under each typical environment interference, analyzing a coupling error influence mechanism between the typical environment interferences; based on the coupling error influence mechanism, constructing a coupling error comprehensive compensation model; adding the coupling effect loss into a data-driven loss function, and defining a model coefficient constrained by physical information; and performing model training by using the training data, and calculating the total loss of the verification set on the obtained model to obtain a final coupling error comprehensive compensation model. According to the invention, the coupling error of the dynamic gravimeter in a complex environment is compensated based on coupling error mechanism analysis and a physical constraint long-short-term memory model, and the measurement precision and environmental adaptability of the dynamic gravimeter under complex multi-factor interference conditions are improved.

The invention relates to the technical field of transformer testing, and discloses a transformer testing device and method, and the device comprises a device housing which is internally provided with an axial through hollow cavity; the testing cylinder is coaxially fixed in the hollow cavity of the device shell, and the outer surface of the testing cylinder is used for winding a winding coil to be tested; the main shaft is arranged in a penetrating mode in the axis direction of the testing cylinder, and the two ends of the main shaft extend out of the device shell; the at least three groups of secondary shafts are uniformly distributed around the main shaft in the circumferential direction; the linkage mechanism is arranged between the main shaft and the secondary shaft and used for converting the axis spinning motion of the main shaft into the radial expansion motion of the secondary shaft; according to the scheme, axial compression force and radial expansion force can be synchronously or independently applied through the main shaft and secondary shaft linkage mechanism, compared with a traditional device which can only apply force in one direction and accurately simulate the multidirectional electromagnetic force coupling effect borne by a winding coil when the transformer is short-circuited, the test result is closer to the actual working condition.

The application discloses a kind of thin-walled part double-sided milling processing system dynamics modeling method, the coupling effect between the tool radial vibration and the vibration in the thickness direction of thin-walled part is considered first in the method, the dynamic cutting thickness corresponding to each blade microelement of milling cutter located on the two sides of thin-walled part is calculated, then the dynamic cutting force acting on tool-thin-walled part system is calculated.The cutting force perpendicular to the thickness direction of the two sides of thin-walled part is applied to the milling cutter on the two sides respectively, the resultant force of the cutting force in the thickness direction of thin-walled part is applied to thin-walled part itself, the dynamics control equation of thin-walled part double-sided milling processing system is established, and the stability solution is carried out to the equation.Compared with the given document, the coupling effect between the tool radial vibration and the vibration in the thickness direction of thin-walled part is considered in the application to establish the cutting force and dynamics model of thin-walled part double-sided milling processing system, and the prediction accuracy of thin-walled part double-sided milling stability lobe diagram is improved.

The utility model discloses a 360-degree occlusion node equivalent spring horizontal stiffness testing device considering a coupling effect, which comprises two clamping assemblies with plate-shaped structures, and the two clamping assemblies are symmetrically arranged and are positioned on the same plane; the clamping assembly comprises a special-shaped clamping plate and a rectangular clamping plate which are oppositely arranged in parallel, the special-shaped clamping plate is connected with the rectangular clamping plate through a bolt, and a gap is reserved between the special-shaped clamping plate and the rectangular clamping plate. The opposite ends of the two special-shaped clamping plates are planes, a gap is reserved between the two special-shaped clamping plates, and clamping ends are formed at the other ends of the two special-shaped clamping plates respectively and used for being connected and fixed with loading equipment respectively. The opposite ends of the two rectangular clamping plates are flush with or higher than the special-shaped clamping plate. The integral device has higher rigidity and stability, ensures that the occlusion node does not generate vertical displacement and rotation during loading, and further more accurately tests the horizontal rigidity of the occlusion node.

This application discloses a display panel and a method for eliminating the coupling effect between adjacent gate lines in the display panel. The display panel includes: a timing controller for providing a drive signal; and a level shifter connected to the timing controller for receiving the drive signal and transmitting a low-level signal to the gate line of the (N+1)th row before the falling edge of the Nth timing sequence, and transmitting a high-level signal to the gate line of the (N+1)th row after the falling edge of the Nth timing sequence, wherein N ≥ 1. This structure eliminates the coupling effect of adjacent gate lines on the current sub-pixel, improving the display effect.

The invention discloses a supporting structure of surrounding rock under the multi-field coupling effect of a deep-buried tunnel and a construction method, and belongs to the technical field of tunnel construction. The supporting structure comprises the surrounding rock, and a flexible supporting assembly, a grouting ring and a sprayed concrete layer are arranged on the inner side of the surrounding rock; the sprayed concrete layer is arranged on the inner side of the grouting ring, the grouting ring is arranged on the inner side of the surrounding rock, and the flexible supporting assembly is sequentially connected to the sprayed concrete layer, the grouting ring and the surrounding rock in a penetrating mode; the flexible supporting assembly, the grouting ring and the sprayed concrete layer are arranged on the inner side of the surrounding rock to form a three-in-one cooperative control system, and the effect of slowly releasing stress to control deformation can be achieved. The contradiction between rigid support and flexible energy release is broken, self-adaptive regulation and control of surrounding rock deformation and energy release are effectively achieved, and the defects that in the prior art, failure is prone to occurring, and deformation is difficult to control are overcome.

The present invention belongs to the field of engineering risk coupling effect analysis, specifically relating to a multiple risk coupling model that considers coupling effects and cascade transmission. The design method includes the following steps: Step 1: Determine a number of multiple risks for a risk assessment unit; Step 2: Determine the representative risk of the risk assessment unit based on the priority ranking and risk level of the multiple risks; Step 3: Determine the coupling coefficient and transmission coefficient; Step 4: Determine the effective risk transmission path; Step 5: Determine the probability proportion of each effective risk transmission path; Step 6: Substitute the results into the multiple risk coupling model for calculation; Step 7: Determine the final risk level. This method can scientifically reveal the amplification effect and cascade transmission effect after considering multiple risk coupling from the perspective of multiple risk coupling, providing a theoretical reference for future multiple risk coupling and even generalized multi-factor coupling analysis.

The invention discloses a gear pair meshing stiffness calculation method considering a thermoelastic coupling effect, which relates to the field of gear transmission, and comprises the following steps: establishing a gear temperature field model and a contact model by utilizing a finite element method, obtaining a gear heat conduction matrix and a structural stiffness matrix, and calculating to obtain gear meshing stiffness and tooth surface load distribution based on an actual tooth surface equation. Calculating tooth surface heat flux density based on tooth surface load distribution, tooth surface friction coefficient and relative sliding speed of each meshing position to obtain a gear thermal load matrix, calculating to obtain an equivalent node load matrix according to a gear heat conduction matrix and the thermal load matrix, and calculating to obtain tooth surface thermal deformation by combining the equivalent node load matrix with a gear structure stiffness matrix. And repeating the steps to obtain the meshing rigidity of the gear pair under the thermoelastic coupling effect. According to the method, the gear contact state iterative solution model based on the potential energy method, the matrix polycondensation method and the slicing thought is established, the requirement for computing equipment is lowered, and the solution efficiency is improved.

The application discloses a kind of asymmetric configuration satellite attitude maneuvering process coupling compensation method, comprising: establishing the satellite attitude dynamics model including the non-diagonal item of moment of inertia matrix;Read current attitude sensor data, and calculate deviation quaternion and deviation angular velocity;According to the attitude dynamics model and current angular velocity data, calculate coupling compensation feedforward control torque;Based on the coupling compensation feedforward control torque, deviation quaternion and deviation angular velocity, the control torque after compensation is calculated;The control torque after compensation is limited and priority torque distribution, and the final control torque is obtained;Final control torque is sent to actuator drive satellite and carries out attitude maneuvering.Solve the problem that coupling effect caused by inertia product cannot be effectively compensated when asymmetric configuration satellite is in large-angle attitude maneuvering in prior art, and then affect control precision and stability.

The invention belongs to the technical field of power consumption modeling methods, and particularly relates to a hybrid power system comprehensive power consumption modeling method, which comprises the following steps of: 1, constructing a combined modeling framework: defining a fuel cell power consumption model, defining a hydrogen internal combustion engine power consumption function and defining a super capacitor power consumption function; a system total power consumption function is generated; and 3, hardware verification deployment is carried out. Through cooperation of the three cooperative models, the internal resistance loss of the super capacitor is quantified, the problem that a traditional independent model ignores the coupling effect is solved, and the energy efficiency prediction error under all working conditions is compressed to be smaller than 3%.

The application relates to a mechanical bearing and medium transport performance test method of an aircraft structure, and belongs to the technical field of aircraft structure performance testing. The method solves the problem that the prior art lacks a method for simultaneously testing mechanical bearing and medium transport performance, cannot simultaneously perform coupling tests between fluid and mechanics, and the test result is inaccurate. The method couples the mechanical bearing and medium transport functions of the aircraft structure for test, can simultaneously test the mechanical bearing and medium transport performance of the aircraft structure, can consider the coupling effect between fluid and mechanics, simulates a real use scene, and the test result is more accurate; the test steps are simple, the test cost is low; and the mechanical bearing and medium transport performance of the aircraft structure obtained through the test is excellent.

The invention relates to the technical field of mechanical transmission and mechatronics, in particular to an integrated linear servo joint thermal magnetic multi-physics coupling design method based on Ansys Workbench, which comprises the following steps: establishing a three-dimensional model of a reverse planetary roller screw; constructing an electromagnetic model of the motor, and performing electromagnetic simulation; internal heat and convective heat transfer coefficients corresponding to the motor are obtained; the heat flow, the heat flux and the convective heat transfer coefficient corresponding to the reverse planetary roller screw are obtained; and constructing a thermal magnetic coupling model, and performing simulation solution. According to the method, the heat, force and magnetic multi-physical field coupling effect is comprehensively considered in the integrated linear servo joint, and the problem that the overall performance of the whole joint is reduced due to the fact that the temperature is too high due to improper design is effectively solved.

The invention discloses a method for predicting an impact displacement time history curve of a concrete filled steel tubular column under the influence of defect coupling, comprising the following steps: S1, acquiring a data set: acquiring test data and verified finite element numerical simulation data, the data set sample comprising structural characteristic parameters of a component and a corresponding displacement time history curve under transverse impact, s2, data preprocessing: extracting geometric, material, defect and impact working condition parameters of the component to form an input feature vector, standardizing input features, performing time alignment and resampling on a displacement time history, and constructing a time sequence input tensor of a unified dimension; s3, a CNN-LSTM-Attention model is established, and the CNN-LSTM- S4, training and optimizing the model by using sample data, and taking a mean square error as a loss function; s5, target component parameters are input, and an impact displacement time history prediction result is output. According to the method, the impact displacement time history of the concrete filled steel tubular column containing multiple defects can be accurately and efficiently predicted, and the impact resistance evaluation efficiency of the structure is improved.

The invention relates to the technical field of wind power blade fatigue tests, and discloses a blade dynamic loading method based on double-shaft coupling resonance, which comprises the steps of forced loading in the shimmy direction, pulse type follow-up loading in the flapping direction and phase synchronization, and is characterized in that the loading frequency in the shimmy direction is set to be always close to the current resonant frequency in the flapping direction; the amplitude of the exciting force in the shimmy direction is dynamically adjusted according to the vibration response in the flapping direction, in the thrust loading stage, when the displacement in the flapping direction reaches a peak value, a thrust pulse is applied to the flapping direction, the magnitude of the thrust pulse is decreased progressively along with attenuation of the vibration amplitude, energy needed by active excitation is reduced through the modal coupling effect, and the active excitation effect is improved. Pulse thrust is only applied in a displacement peak value interval in the flapping direction, free attenuation is achieved in other time, invalid energy consumption is avoided, the amplitude is adjusted in a self-adaptive mode, so that shimmy excitation force is dynamically optimized along with flapping vibration response, overload or insufficient excitation is avoided, and rigidity degradation in the blade testing process is adapted.

The application discloses a kind of cylinder spinning machine detection control method and system, belong to spinning machine technical field, solve when high-precision thin-walled part batch production is carried out after spinning machine long time work, the dynamic gap change caused by the static compensation algorithm of numerical control system because unable to match guide rail wear, and the illusion of no-load detection qualified covers the commutation point trajectory step and force-position coupling effect caused by insufficient compensation under heavy load, finally lead to the problem of part because micron level profile distortion and scrap.By real-time acquisition of feed shaft operation data and observation external load force, residual gap error is captured when detecting commutation event, wear-load model parameters are identified online using the error, and compensation value is dynamically calculated based on the identification results and current load to correct the position command at commutation.Finally, the compensation effect is evaluated and new data is fed back to the model to realize adaptive closed-loop control.

The utility model discloses a detection device for detecting internal crack defects of a roller by using an ultrasonic angle probe, which comprises a flaw detector rack and a fixed seat, a strip-shaped plate is arranged on the left side of the fixed seat, a connecting plate is movably arranged on the strip-shaped plate through a locking mechanism, and the bottom of the connecting plate is connected with a mounting shell through an adjusting mechanism; the adjusting mechanism comprises a first stepping motor, a first rotating lead screw, a first sliding nut, a fixed arm, a swing arm, a second stepping motor, a second rotating lead screw, a second sliding nut, a coupling agent spray head and a probe clamping sleeve. The device has the beneficial effects that the flaw detector is placed on the flaw detector rack, the probe clamping sleeve is used for clamping the ultrasonic angle probe, and according to the flaw detector connected with the ultrasonic angle probe in a matched manner, the internal crack defect of a roller body is continuously detected while the roller is ground by the grinding machine; according to the invention, missing detection and safety risks in manual detection can be reduced, and sufficient coupling agent is supplied in the detection process, so that the coupling effect is ensured, and the detection reliability is improved.

This utility model discloses a small-diameter pipe phased array circumferential scanning fixture in the field of pipeline flaw detection technology. It includes a base with symmetrically arranged support frames on both sides. A sleeve is rotatably inserted into each support frame, and a clamping mechanism is provided on the sleeve. A phased array probe mechanism is located between the two sets of support frames. The moving drive mechanism includes a mounting ring, several sets of hollow seats on the outer wall of the mounting ring, and a threaded sleeve that rotatably passes through the hollow seats and the mounting ring. A threaded rod is threaded into one end of the threaded sleeve facing the center of the mounting ring. One end of the threaded rod is connected to a mounting plate, and the mounting plate is connected to an ultrasonic probe. This utility model allows the threaded sleeve on the rotatable mounting ring to drive the threaded rod, thereby moving the ultrasonic probe radially to adjust the distance between the probe and the pipe wall. This effectively solves the problem of unstable coupling effect of traditional fixed-spacing probes when detecting different pipe diameters, improving detection accuracy and expanding the range of pipe diameters that can be detected.

The invention discloses a multi-dimensional parameter estimation method based on a non-concurrent uniform linear array mutual coupling scene, and relates to the technical field of signal processing, and the method can achieve the joint estimation of DOA and polarization parameters in the presence of a mutual coupling effect, and comprises the steps: firstly, effectively eliminating a mutual coupling matrix through sub-array selection, and carrying out the sub-array selection; dependence on prior knowledge of array mutual coupling characteristics is not needed; an improved high-resolution algorithm is adopted to complete DOA estimation, polarization parameters are accurately estimated through parameter matching, and simulation results show that the method can significantly improve estimation precision in a complex mutual coupling environment, and shows good application prospects and robust performance.

A dynamic compensation method for a mechanism model of a water turbine governor based on deep residual learning comprises the steps that firstly, multi-dimensional real-time data in the operation process of the water turbine governor is collected, and a mechanism model covering the electrical-mechanical-hydraulic multi-physics field coupling effect is constructed; comparing the guide vane opening degree predicted by the mechanism model with the actually measured guide vane opening degree to obtain a residual error as a training sample; a dual-channel deep residual learning model including a TCN module, a 1D-CNN module, a channel attention module and a bidirectional LSTM module is constructed, and a composite loss function fusing data fitting loss and physical constraint loss is adopted for training; and superposing the output of the residual error model to the output of the mechanism model to realize high-precision dynamic compensation. And a performance monitoring mechanism is set, and when the mean absolute error MAE of the opening degree of the guide vane exceeds 0.2% and is continuously overtime, the model is automatically triggered to be retrained. According to the method, the precision, robustness and adaptive capacity of the speed regulator simulation model are effectively improved, and the method is suitable for a hydraulic turbine speed regulator digital twin system.