Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
31 results about "Nonlinear decoupling" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Multifunctional process control experiment platform
InactiveCN102314186ASimultaneous control of multiple variablesFuzzy control systemNonlinear decoupling
A multifunctional process control experiment platform, which relates to a process control system, is disclosed. A control loop of the multifunctional process control experiment platform can be used alone or in combination. Single and combined control of four indexes: a liquid level, flow, a temperature and a pressure can be realized. The control loop can be used in a single variable experiment, a multivariable experiment, fuzzy control, fault diagnosis, fault-tolerant control, and multivariable non-linear decoupling control.
Owner:NORTHEASTERN UNIV +1
Quadruped robot movement track control method based on PSO-PD (Particle Swarm Optimization-PD) neural network
ActiveCN106886155AShort learning timeHigh control precisionAdaptive controlHidden layerNonlinear decoupling
The invention relates to a quadruped robot movement track control method based on a PSO-PD (Particle Swarm Optimization-PD) neural network. The quadruped robot movement track control method comprises the following steps: (1) calculating a target falling point of a robot on a movement track; (2) inputting the target falling point and a feedback body gravity center position into an input layer of the PSO-PD neural network, performing linear conversion, inputting into a first hidden layer, performing ratio calculation and differential operation, performing linear conversion, inputting into a second hidden layer, and acquiring instruction displacement in an x direction and a y direction, inputting into a third hidden layer, calculating an instruction displacement distance, instructing a body direction, inputting into a fifth layer, performing foot tract control and steering control on a quadruped robot, inputting into a sixth layer, adjusting the posture of the quadruped robot in case of disturbance, inputting into a seventh layer, calculating the body direction and the body gravity center position of the quadruped robot, feeding back the body direction to the fifth layer, and feeding back the body gravity center position to the input layer. The quadruped robot movement track control method has relatively good non-linear decoupling control capability, is precise in control and good in stability, and has relatively good anti-interference properties.
Owner:QILU UNIV OF TECH
Overall input decoupling device for multi-rotor unmanned aerial vehicle and control system with device
ActiveCN102360217AAchieve independent controlReduce complexityAttitude controlPosition/course control in three dimensionsObject basedMathematical model
The invention relates to an overall input decoupling device for a multi-rotor unmanned aerial vehicle. The device comprises a coefficient matrix Mco storage module, a structure matrix Mrel storage module and a leading rotor speed operation module, wherein a coefficient matrix Mco and a structure matrix Mrel are multiplied and inversed to obtain a module of an inverse matrix (Mco.Mrel)<-1>. By non-linear decoupling mapping, the input decoupling of the multi-rotor unmanned aerial vehicle is realized under the condition of unknown models, so that the multi-rotor unmanned aerial vehicle, namely amulti-input multi-output system is decoupled into a plurality of single-input single-output subsystems, and each degree of freedom is only influenced by one subsystem loop. Therefore, the degree of freedom (positions and postures) is independently controlled, the control complexity of the system is reduced, the system is easy to control, and the device does not depend on a mathematical model of an object, has a wide application range and is suitable for multi-rotor unmanned aerial vehicles with arbitrary structures.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Bearing-free asynchronous motor suspension system fault-tolerant controller and construction method thereof
InactiveCN103414417ARealize non-linear decoupling controlSolve the defect of finding the inverse modelElectronic commutation motor controlAC motor controlSupport vector machineIntegrator
The invention discloses a bearing-free asynchronous motor suspension system fault-tolerant controller and a construction method of the bearing-free asynchronous motor suspension system fault-tolerant controller. A support vector machine and an integrator corresponding to the support vector machine are used for constructing a normal inverse model and a fault inverse model of a composite controlled object respectively and form an inverse model base. The inverse models in the inverse model base are used as inverse models of the composite controlled object, corresponding vector coefficients and threshold values of the support vector machine are adjusted and determined to enable the inverse model base to have the inverse system function. The inverse model base and the composite controlled object are connected in series to obtain a fake linear system. The fake linear system is decoupled into two two-order single-input single-output displacement linear sub systems, and two additional controllers are introduced into the two two-order displacement linear sub systems respectively to construct a linear closed-loop controller. The linear closed-loop controller and the inverse model base collectively form a support vector machine inverse fault-tolerant controller. In the situation of normal operation and operation with faults, nonlinear decoupling control of a bearing-free asynchronous motor suspension system is achieved, and good fault tolerance and robustness are achieved.
Owner:JIANGSU UNIV
Flight control law design new method considering both transient response and robust stability
The invention discloses a flight control law design new method considering both transient response and robust stability. The method comprises the following steps: (1) an aircraft strong non-linear model is built; (2) a force and moment surrogate model is built; (3) an equivalent linear model is built; and (4) in combination with a control inner loop and a control outer loop, a new flight control law is designed. The method of the invention has the beneficial effects that a composite nonlinear feedback control theory and a variable factor technique are used for compromise design and analysis on static and dynamic performance indexes of a closed-loop control system, the flight control system is ensured to have good tracking performance, strong robust stability and satisfactory nonlinear decoupling control ability, the flight control law application range is enhanced, the complicated control quality requirements of the modern aircraft are met, and the mutual restriction problem between dynamic response and robust stability in the flight control system design is solved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Nonlinear decoupling method used for wheel force transducers
ActiveCN109141742AEasy to integrateLow channel couplingForce/torque/work measurement apparatus calibration/testingTransducerEngineering
The invention discloses a nonlinear decoupling method used for wheel force transducers. The method includes the following steps: 1, extending transducer input-output linear relation into a nonlinear form according to nonlinear characteristics of a wheel force transducer system and static calibration results; 2, deducing the matrix form of the input-output relation of each channel according to an established quadratic equation set; and 3, obtaining a decoupling matrix according to established matrix relation, and calculating real multi-dimensional wheel force / torque by using the matrix so thatmulti-dimensional signal decoupling can be realized. Through the method, the degree of coupling between measuring channels can be greatly reduced, and obtained force / torque signals can be maximumly approached to real ground-wheel force / torque signals.
Owner:NANJING UNIV OF TECH
Forming method for neural network inverse controller of active power filter
ActiveCN102655326ARealize decoupling controlImprove dynamic and static performanceActive power filteringAc network to reduce harmonics/ripplesIntegratorControl engineering
The invention discloses a forming method for a neural network inverse controller of an active power filter, and the method comprises the following steps of: taking an inverter and an alternating current-side inductor of a main circuit of the active power filter as a whole to be formed into a controlled object, wherein the controlled object takes two switch function control quantity of the main circuit as input, and takes two compensating current components as output; according to an inverse system which corresponds to the controlled object, forming into neural network inversion by a static neural network and an integrator; equalizing the neural network inversion into a pseudolinear system consisting of two independent first-order integration type compensating current subsystems before the neural network inversion is connected with the controlled object in series; respectively designing two current controllers to the two independent first-order integration type compensating current subsystems in the pseudolinear system to form into a linear closed-loop controller; and connecting the linear closed-loop controller with the neural network inversion in series to be formed into a neural network inversion system method controller, so that an active power filter model can be nonlinearly controlled in a decoupling way at high performance, and the power quality of a power system can be improved.
Owner:江苏集萃中以科技产业发展有限公司
Method for controlling multivariable input EHA system based on model prediction control
InactiveCN107092189AImprove work efficiencyIncrease working frequencyAdaptive controlInput controlNonlinear decoupling
The present invention provides a method for controlling a multivariable input EHA system based on model prediction control. The method comprises a step of defining state variables of the multivariable input EHA system, and establishing a state variable equation model of the multivariable input EHA system, a step of carrying out model prediction control on the state variable equation model, establishing a target function of the model prediction control, solving the optimal solution of the target function through rolling optimization, and obtaining virtual input of the multivariable input EHA system, and a step of carrying out control distribution on the real input amount of the multivariable input EHA system by using the virtual input of the multivariable input EHA system. The method provided by the invention can be used for the input control of the multivariable input EHA system, a nonlinear decoupling control problem in the multivariable input EHA system is effectively solved, thus a research foundation is provided for multivariable input EHA system control, and a development direction correspondingly is provided for the further improvement of working efficiency and frequency of the multivariable input EHA system.
Owner:BEIJING JIAOTONG UNIV
Vinyl chloride rectification temperature control method based on fuzzy neural network
PendingCN110647186ARealize decoupling controlHigh control precisionTemperature control using electric meansAdaptive controlEngineeringActuator
The invention discloses a vinyl chloride rectification temperature control method based on a fuzzy neural network, and relates to the field of vinyl chloride rectification production control. The vinyl chloride rectification temperature control method comprises the steps that firstly, sensor signals are discretely collected through a signal collecting module, and are subjected to filtering processing; secondly, fuzzy neural network control is conducted according to signal collecting module output, fuzzification, fuzzy reasoning, fuzzy decision-making and defuzzification output are conducted insequence to obtain required control parameter values, and nonlinear decoupling control is directly conducted on an actuator; and finally, through a BP learning algorithm, the link weight, the gaussian function center value and the width value in a controller are learned and corrected, thus the temperature error of a rectifying tower is converged after output of the controller, and the stability of the system is improved on the basis of improving controlling precision.
Owner:北京和隆优化科技股份有限公司
Electromechanical controller and its control method for arc cam indexing mechanism
InactiveCN1684356AImprove performanceHigh positioning accuracyDC motor speed/torque controlMechanical energy handlingCouplingNonlinear decoupling
An electromechanical control device used in a cambered surface cam dividing mechanism includes a motor, a cambered surface dividing cam box, a coupler and a base, it also includes a non-linear perturbed compensation controller fixed on the base together with the motor and the box, the motor is connected with the box by the coupler, the non-linear perturbed compensation controller is connected with the box by a cable. This invention applies the active compensation control to the motor by perturbation observation of a sliding mode transformation structure and a non-linear uncoupling compensation control technology to reduce influence of the load variance to the operation performance of the motor.
Owner:SHANDONG UNIV
A temperature compensation and inter-dimensional decoupling method for a pore pressure static sounding probe
ActiveCN109766575ALoad real output realizationSolve temperature problemsMitigation of undesired influencesApparatus for force/torque/work measurementCouplingEngineering
The invention discloses a temperature compensation and inter-dimensional decoupling method for a pore pressure static sounding probe. The method comprises the steps of firstly establishing a temperature compensation model according to the measurement modes of a multifunctional pore pressure static sounding probe and a three-channel sensor, taking the output of the multifunctional pore pressure static sounding probe as sample data, obtaining the model parameters through regression, and carrying out the temperature compensation; secondly, according to the working principle of the multifunctionalpore pressure static sounding probe, analyzing the relationship between the load of the multifunctional pore pressure static sounding probe and the output of the multifunctional pore pressure staticsounding probe sensor, establishing a nonlinear regression model, taking the output of the multifunctional pore pressure static sounding probe as an initial sample, returning model parameters by adopting a least square method, and carrying out nonlinear decoupling. According to the present invention, the problems of temperature influence and dimensional coupling of the multifunctional pore pressure static sounding probe are solved, and the real load output of the multifunctional pore pressure static sounding probe is achieved.
Owner:SOUTHEAST UNIV
Power system transient stability analysis method based on coupling evaluation index
ActiveCN111210145AReduce conservatismEffective guidance parameter designAc network load balancingResourcesTransient stateSystems analysis
The invention relates to a stability analysis technology in the field of power systems, and aims to provide a power system transient stability analysis method based on a coupling evaluation index. Themethod comprises the following steps: establishing a space model for the state of a power system, decoupling the space model by using a coupling evaluation index and a nonlinear decoupling method, and approximately converting an original high-order nonlinear system into a series of decoupled first-order secondary and second-order secondary systems; and judging the attraction domain of each statevariable by using a low-order secondary system analysis tool, and reflecting the transient stability of the power system through the relationship between the numerical value of the state variable andthe obtained attraction domain. According to the method, different coupling pairs and isolated state variables are screened according to the coupling evaluation index and the characteristic value of the linear part and are used for guiding system decoupling. According to the method, high-dimensional and nonlinear challenges of a power electronic power system can be overcome, and compared with a traditional Lyapunov method, the method has the technical advantages that the conservative property of a result can be remarkably reduced, and then parameter design can be guided more effectively.
Owner:ZHEJIANG UNIV
Forming method for neural network inverse controller of active power filter
ActiveCN102655326BRealize decoupling controlImprove dynamic and static performanceActive power filteringHarmonic reduction arrangementIntegratorControl engineering
Owner:江苏集萃中以科技产业发展有限公司
Automobile ASS and EPS integrated system neural network inversion controller and construction method thereof
ActiveCN104049535AImprove generalization abilityImprove convergence accuracyAdaptive controlSystems designClosed loop
The invention discloses an automobile ASS and EPS integrated system neural network inversion controller and a construction method thereof. An ASS and an EPS serve as a whole to constitute an entire automobile nonlinear system, neural network inversion is placed in front of the entire automobile nonlinear system, the neural network inversion and the entire automobile nonlinear system are connected in series to be compounded into a pseudo-linear system, on this basis, a linear closed loop regulator is designed for the pseudo-linear system, and the neural network inversion and the linear closed loop regulator are connected in series to constitute the automobile ASS and EPS integrated system neural network inversion controller. By the adoption of the controller, non-linear decoupling control over the automobile acceleration, the side tilting angle, the suspension dynamic deflection, the entire automobile yaw velocity and the centroid offset angle of an automobile can be achieved, and the control performance of an automobile ASS and EPS integrated system can be improved obviously.
Owner:JIANGSU UNIV
Control system and method for rectifier of charging pile of electric vehicle
PendingCN113241958AImprove anti-interference abilityEasy to trackCharging stationsAc-dc conversionCurrent sensorActive disturbance rejection control
The invention discloses a control system and method for a rectifier of a charging pile of an electric vehicle. The control system comprises a direct-current-side voltage sensor, an alternating-current-side voltage sensor, a current sensor, an active disturbance rejection control module with a reduced-order expansion state observer, a PI controller, a coordinate transformation module, a nonlinear decoupling module and an SVPWM module, wherein the alternating-current-side voltage sensor and the current sensor are connected with the input end of the coordinate conversion module, and the coordinate conversion module and the direct-current-side voltage sensor are jointly connected with the active disturbance rejection control module; the active disturbance rejection control module is connected with the PI controller; the PI controller is connected with the nonlinear decoupling module; the nonlinear decoupling module is connected with the SVPWM module; and the SVPWM module is connected with a rectifier bridge circuit in the rectifier. According to the invention, by using the active disturbance rejection control module with the reduced-order expansion state observer, the order of the observer is effectively reduced.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Two-axis secondary distribution nonlinear decoupling permanent magnet motor speed control method
ActiveCN113179071BElimination of detrimental effects on stabilityFlexible approachElectronic commutation motor controlAC motor controlMotor speedPermanent magnet synchronous motor
Owner:YANTAI UNIV
Control method of multivariable input eha system based on model predictive control
InactiveCN107092189BImprove work efficiencyIncrease working frequencyAdaptive controlState variableInput control
Owner:BEIJING JIAOTONG UNIV
Neural network inverse controller and construction method of automobile ass and eps integrated system
ActiveCN104049535BImprove generalization abilityImprove convergence accuracyAdaptive controlSystems designClosed loop
The invention discloses an automobile ASS and EPS integrated system neural network inversion controller and a construction method thereof. An ASS and an EPS serve as a whole to constitute an entire automobile nonlinear system, neural network inversion is placed in front of the entire automobile nonlinear system, the neural network inversion and the entire automobile nonlinear system are connected in series to be compounded into a pseudo-linear system, on this basis, a linear closed loop regulator is designed for the pseudo-linear system, and the neural network inversion and the linear closed loop regulator are connected in series to constitute the automobile ASS and EPS integrated system neural network inversion controller. By the adoption of the controller, non-linear decoupling control over the automobile acceleration, the side tilting angle, the suspension dynamic deflection, the entire automobile yaw velocity and the centroid offset angle of an automobile can be achieved, and the control performance of an automobile ASS and EPS integrated system can be improved obviously.
Owner:JIANGSU UNIV
A Motion Trajectory Control Method of Quadruped Robot Based on PSO-PD Neural Network
ActiveCN106886155BEasy to controlGood non-linear decoupling control abilityAdaptive controlHidden layerSimulation
The invention relates to a quadruped robot movement track control method based on a PSO-PD (Particle Swarm Optimization-PD) neural network. The quadruped robot movement track control method comprises the following steps: (1) calculating a target falling point of a robot on a movement track; (2) inputting the target falling point and a feedback body gravity center position into an input layer of the PSO-PD neural network, performing linear conversion, inputting into a first hidden layer, performing ratio calculation and differential operation, performing linear conversion, inputting into a second hidden layer, and acquiring instruction displacement in an x direction and a y direction, inputting into a third hidden layer, calculating an instruction displacement distance, instructing a body direction, inputting into a fifth layer, performing foot tract control and steering control on a quadruped robot, inputting into a sixth layer, adjusting the posture of the quadruped robot in case of disturbance, inputting into a seventh layer, calculating the body direction and the body gravity center position of the quadruped robot, feeding back the body direction to the fifth layer, and feeding back the body gravity center position to the input layer. The quadruped robot movement track control method has relatively good non-linear decoupling control capability, is precise in control and good in stability, and has relatively good anti-interference properties.
Owner:QILU UNIV OF TECH
Robust adaptive decoupling control method for aerial remote sensing inertially stabilized platform
ActiveCN111025897AHigh stability and precisionThe principle of decoupling is clearAdaptive controlControl engineeringNonlinear coupling
The invention discloses a robust adaptive decoupling control method for an aerial remote sensing inertially stabilized platform. The method comprises the following steps: establishing a framework kinetic equation based on the inertially stabilized platform; nonlinear decoupling and robustness improvement are carried out on the stabilized platform through inverse system feedback linearization; residual coupling left by inverse system feedback linearization is subjected to suppression method research through model reference adaptive control, the decoupling control process is completed, and the overall control precision of the system is improved. According to the method, nonlinear coupling of the stabilized platform is decoupled through inverse system feedback linearization, the defects of acommon linear decoupling control method are overcome, and the stabilization precision of the platform is improved; and the robustness of the inertially stabilized platform system can be effectively improved, and the method is suitable for the aerial remote sensing inertially stabilized platform with the coupling moment between the base and the frame.
Owner:BEIHANG UNIV
Control system and algorithm of PWM rectifier
InactiveCN113328640AReduce dropImprove anti-interference abilityEfficient power electronics conversionAc-dc conversionAlgorithmInner loop
The invention relates to the technical field of battery charging,and concretely relates to a control system and algorithm of a PWM rectifier. The system comprises a main circuit module, a coordinate conversion module, a PWM rectifier control module and a coordinate inverse transformation module which are sequentially arranged to form a closed loop. The PWM rectifier control module comprises a voltage sliding mode control unit, a current inner loop PI controller and a nonlinear decoupling module which are arranged in sequence. The control method has the advantages that after sliding mode control is adopted, the system can enter a stable state more quickly, the overshoot of the output voltage is smaller, the response speed is higher, and the PWM rectifier can be effectively, quickly and accurately controlled.
Owner:ANHUI SANLIAN UNIV
A Method of Temperature Compensation and Dimension Decoupling for CPT Probe
ActiveCN109766575BLoad real output realizationSolve temperature problemsDesign optimisation/simulationMitigation of undesired influencesEngineeringNonlinear decoupling
The invention discloses a method for temperature compensation and inter-dimensional decoupling of a pore pressure static penetration probe. This method first establishes a temperature compensation model based on the measurement methods of the multi-functional piezostatic penetration probe and the three-channel sensor, and uses the output of the multi-functional piezostatic penetration probe as sample data to regress the model parameters for temperature compensation. . Secondly, according to the working principle of the multifunctional piezostatic penetration probe, the relationship between the load of the multifunctional piezostatic penetration probe and the sensor output of the multifunctional piezostatic penetration probe is analyzed, and a nonlinear regression is established The output of the multi-functional piezostatic penetration probe is used as the initial sample, and the model parameters are regressed by the least square method for nonlinear decoupling. The invention solves the problems of temperature influence and inter-dimensional coupling of the multi-functional piezostatic penetration probe, and realizes the real load output of the multi-functional piezostatic penetration probe.
Owner:SOUTHEAST UNIV
Two-axis secondary distribution nonlinear decoupling permanent magnet motor rotating speed control method
ActiveCN113179071AElimination of detrimental effects on stabilityFlexible approachElectronic commutation motor controlAC motor controlPermanent magnet synchronous motorPermanent magnet synchronous generator
The invention discloses a two-axis secondary distribution nonlinear decoupling permanent magnet motor rotating speed control method. An error signal is obtained by measuring the rotating speed of a permanent magnet synchronous motor and comparing the rotating speed with an expected value, then a damping network is constructed to obtain an expected signal of a first axis, a two-axis linkage mode is set, secondary distribution is carried out, the expected signal is decomposed into two axial directions, an ideal current distribution value of the double axes is obtained, then the damping network and an error accumulation algorithm are constructed, and tracking control is carried out on double-shaft current to achieve tracking of the rotating speed of the motor. According to an existing motor control method, the current of one axis is stabilized in a zero state, so that two-axis nonlinear coupling of the motor is decoupled, and then the current of the other shaft is adopted to control the rotating speed of the motor to track an expected value. According to the method, non-linearity of the motor system is directly decoupled through a two-shaft secondary distribution method, so that steady-state values of double-shaft currents are in a non-zero state, and control distribution and energy distribution are achieved.
Owner:YANTAI UNIV
An experimental simulation system of variable speed constant frequency dual feed wind generator
InactiveCN100561856CHigh simulationGuaranteed uptimeEducational modelsGenerator control by field variationConstant frequencyDrive motor
A variable-speed constant-frequency doubly-fed generator experimental simulation system and an experimental method thereof. Including fan simulation controller [1], AC drive motor [2], DSP unit [6], power acquisition unit [7], speed measurement unit [8] and drive unit [9]. It simulates the characteristics of the fan, and uses the fan simulation controller [1] to control the operation of the AC drive motor [2]. The power generation experiment brings great convenience; the fan simulation controller [1] sets the starting speed and torque, which solves the starting problem of the experimental system. This kind of simulation system can set the torque-speed curve of different fans to simulate the operation of various fans conveniently. At the same time, the control process in the fan analog controller [1] adopts the feed-forward decoupling nonlinear control based on the rotor field orientation, which can greatly improve the dynamic performance of the system.
Owner:北京科诺伟业科技股份有限公司 +1
Water sample COD concentration nonlinear decoupling control method based on differential geometric feedback control
A water sample COD concentration nonlinear decoupling control method based on differential geometric feedback control comprises the following steps: S1, establishing a chemical oxygen demand model qCOD = F (T, H, q1, q2, q3, q4, q5), and inputting a model constraint; S2, analyzing the characteristics of the chemical oxygen demand model qCOD = F (T, H, q1, q2, q3, q4, q5), and judging whether a system can use a differential geometry feedback control method according to whether the Jacobian matrix of the nonlinear system F is full rank; and if the Jacobian matrix is full rank, that is, the Jacobian matrix accords with a relative order, determining that a differential geometric feedback control method can be used; S3, if the nonlinear system F meets the condition of a relative order, calculating a feedback transformation matrix phi of differential geometry feedback control; S4, performing matrix transformation on the feedback transformation matrix phi; S5, processing measurement data in a new domain; and S6, inversely transforming a result obtained in the new domain into an actual measurement domain. According to the invention, a differential geometric feedback control analysis method is applied to input and output analysis of a measurement system aiming at nonlinear characteristics of a system description function F.
Owner:南京杰思尔环保智能科技有限公司
Overall input decoupling device for multi-rotor unmanned aerial vehicle and control system with device
ActiveCN102360217BAttitude controlPosition/course control in three dimensionsObject basedMathematical model
The invention relates to an overall input decoupling device for a multi-rotor unmanned aerial vehicle. The device comprises a coefficient matrix Mco storage module, a structure matrix Mrel storage module and a leading rotor speed operation module, wherein a coefficient matrix Mco and a structure matrix Mrel are multiplied and inversed to obtain a module of an inverse matrix (Mco.Mrel)<-1>. By non-linear decoupling mapping, the input decoupling of the multi-rotor unmanned aerial vehicle is realized under the condition of unknown models, so that the multi-rotor unmanned aerial vehicle, namely amulti-input multi-output system is decoupled into a plurality of single-input single-output subsystems, and each degree of freedom is only influenced by one subsystem loop. Therefore, the degree of freedom (positions and postures) is independently controlled, the control complexity of the system is reduced, the system is easy to control, and the device does not depend on a mathematical model of an object, has a wide application range and is suitable for multi-rotor unmanned aerial vehicles with arbitrary structures.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Multifunctional process control experiment platform
InactiveCN102314186BSimultaneous control of multiple variablesFuzzy control systemNonlinear decoupling
Owner:NORTHEASTERN UNIV LIAONING +1
Design method of flight control law considering both transient response and robust stability
The invention discloses a flight control law design new method considering both transient response and robust stability. The method comprises the following steps: (1) an aircraft strong non-linear model is built; (2) a force and moment surrogate model is built; (3) an equivalent linear model is built; and (4) in combination with a control inner loop and a control outer loop, a new flight control law is designed. The method of the invention has the beneficial effects that a composite nonlinear feedback control theory and a variable factor technique are used for compromise design and analysis on static and dynamic performance indexes of a closed-loop control system, the flight control system is ensured to have good tracking performance, strong robust stability and satisfactory nonlinear decoupling control ability, the flight control law application range is enhanced, the complicated control quality requirements of the modern aircraft are met, and the mutual restriction problem between dynamic response and robust stability in the flight control system design is solved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
A robust adaptive decoupling control method for aerial remote sensing inertial stabilization platform
ActiveCN111025897BHigh stability and precisionThe principle of decoupling is clearAdaptive controlDynamic equationControl engineering
The invention discloses a robust self-adaptive decoupling control method for an aerial remote sensing inertial stable platform, which includes establishing a frame dynamic equation based on an inertial stable platform; performing nonlinear decoupling and robustness on the stable platform through inverse system feedback linearization Improvement; through model reference adaptive control, research on the suppression method of the residual coupling left by the feedback linearization of the inverse system, complete the decoupling control process, and improve the overall control accuracy of the system. The present invention decouples the nonlinear coupling of the stable platform through inverse system feedback linearization, overcomes the shortcomings of the ordinary linear decoupling control method, improves the stability precision of the platform, and can effectively improve the robustness of the inertial stable platform system, and is suitable for An aerial remote sensing inertial stabilization platform with coupling moments between the base and the frame.
Owner:BEIHANG UNIV
An Analysis Method of Power System Transient Stability Based on Coupling Evaluation Index
ActiveCN111210145BReduce conservatismEffective guidance parameter designAc network load balancingResourcesTransient stateSystems analysis
Owner:ZHEJIANG UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com