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38 results about "Linear control systems" patented technology
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A linear control system is a system that is linear, and is used to control another system. A good example is the proportional integral derivative (PID) controllers. Linear control systems can be described by a transfer function.
Hall-effect based linear motor controller
Owner:ALLEGRO MICROSYSTEMS INC
Hall-effect based linear motor controller
A linear motion control device for use in a linear control system is presented. The linear motion control device includes a coil driver to drive a coil that, when driven, effects a linear movement by a motion device having a magnet. The linear motion control device also includes a magnetic field sensor to detect a magnetic field associated with the linear movement and an interface to connect an output of the magnetic field sensor and an input of the coil driver to an external controller. The interface includes a feedback loop to relate the magnetic field sensor output signal to the coil driver input.
Owner:ALLEGRO MICROSYSTEMS INC
Control and protection of loudspeakers
ActiveCN105103568ATransducer circuit dampingTransducer protection circuitsControl systemControl signal
A nonlinear control system and a loudspeaker protection system. In particular, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom. An active loudspeaker with an integrated amplifier is disclosed. A loudspeaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a loudspeaker dependent upon a bank of representative models is disclosed.
Owner:CIRRUS LOGIC INT SEMICON
Design method for nonlinear system controller of aero-engine
The invention discloses a design method for a nonlinear system controller of an aero-engine. The method is directed at control problems of the affine nonlinear system of the aero-engine within a large deviation range. The method comprises the following steps: linearizing the nonlinear system of the aero-engine based on the theory of exact linearization, adopting the variable structure control in designing a non-linear sliding mode controller, changing a control structure with a purpose by using a linearized state variable to enable the linearized state variable to move based on the designed sliding mode track so as to offset parameter perturbation and exterior interference, finally directed at the key problem of designing non-linear controller parameters, adopting the artificial bee colony algorithm in adjusting the controller parameters, and calculating the optimal parameter to optimize the control effect. According to the invention, the method is directed at the problem of designing complex controller parameters, and obviates the need for tedious manual debugging and repeated verification. By using the bee colony algorithm in designing a reasonable target performance function, the method enables an automatic calculation of the optimal controller parameters and enables the non-linear controlling system of the aero-engine to have a satisfied dynamic performance and robust stability.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Hematology Linearity Control Composition, System and Method of Use
ActiveUS20080113438A1Affect measurementReduce concentrationDead animal preservationIndividual particle analysisMedicine.hematologyWhite blood cell
A linearity control system includes a series of linearity control compositions, each thereof includes white blood cell analogs and stabilized red blood cells in a suspension medium. The concentration of the white blood cell analogs in the series of control compositions increases from 0.2×103 to 800×103 analogs per microliter, and the concentration of the white blood cell analogs in at least one control composition is greater than 120×103 analogs per microliter. The stabilized red blood cells facilitate mono-dispersion of the white blood cell analogs in the suspension medium by gently mixing. The control compositions further include platelet analogs, or additionally include reticulocyte and / or nucleated red blood cell analogs. The linearity control system allows the verification of the reportable measurement range and linearity of the measurements of hematology analyzers for white blood cells, red blood cells and platelets in extended concentration ranges.
Owner:BECKMAN COULTER INC
Hematology linearity control composition, system and method of use
ActiveUS7754487B2Affect measurementReduce concentrationDead animal preservationIndividual particle analysisMedicine.hematologyWhite blood cell
A linearity control system includes a series of linearity control compositions, each thereof includes white blood cell analogs and stabilized red blood cells in a suspension medium. The concentration of the white blood cell analogs in the series of control compositions increases from 0.2×103 to 800×103 analogs per microliter, and the concentration of the white blood cell analogs in at least one control composition is greater than 120×103 analogs per microliter. The stabilized red blood cells facilitate mono-dispersion of the white blood cell analogs in the suspension medium by gently mixing. The control compositions further include platelet analogs, or additionally include reticulocyte and / or nucleated red blood cell analogs. The linearity control system allows the verification of the reportable measurement range and linearity of the measurements of hematology analyzers for white blood cells, red blood cells and platelets in extended concentration ranges.
Owner:BECKMAN COULTER INC
Under-actuated spacecraft three-axis attitude stabilization control method
ActiveCN103336528AHigh economic valueExtend your lifeAdaptive controlPosition/course control in three dimensionsLinear controlKinematics equations
The invention relates to an under-actuated spacecraft three-axis attitude stabilization control method, which designs a controller realizing three-axis attitude stabilization through a two-axis attitude control flywheel in allusion to under-actuated spacecrafts only capable of outputting two-axis control moment. The method comprises the steps of establishing an attitude kinematical equation on the basis of Rodriguez parameters and an attitude kinetic equation in an inertial system; simplifying and organizing the overall system into a Brockett double-integrating system, acquiring a linear control system with controllable system state by adopting sigma conversion and according to whether a starting condition is zero or not, designing a control law to complete the state stabilization of the system, and achieving the purpose of spacecraft three-axis attitude stabilization control. The method provided by the invention can realize three-axis attitude stabilization control when an under-actuated spacecraft only has a two-axis attitude control moment output capacity. Compared with an existing under-actuated control method, the design method provided by the invention is simple, intuitive and easy to implement on stars, and can be applied to three-axis attitude stabilization control of various under-actuated spacecrafts adopting the flywheel.
Owner:BEIJING INST OF CONTROL ENG
Microgrid energy optimization scheduling method based on adaptive control
ActiveCN112003330AImprove robustnessAchieving Adaptive ControlSingle network parallel feeding arrangementsAc network load balancingLinear controlMicrogrid
The invention relates to a microgrid energy optimization scheduling method based on adaptive control. The microgrid energy optimization scheduling method comprises the steps of S1, obtaining a randomlinear control system; S2, constructing an adaptive microgrid optimization scheduling model according to the random linear control system obtained in the step S1; S3, performing MPC optimal schedulingon the adaptive microgrid optimal scheduling model constructed in the step S2. The beneficial effects of the method are that: according to the microgrid energy optimization scheduling method based onadaptive control, under a combined optimization scheduling framework of a random energy and an energy storage system, an optimization strategy based on adaptive random model predictive control is provided; the method is compared with a robust model predictive control method based on scene construction, different self-adaptive updating strategies and comparison models of different adjusting parameters are designed, the scheduling performance of the system and the self-adaptability of the model can be effectively improved, and the conservative property of the system is reduced.
Owner:ZHEJIANG ZHENENG TECHN RES INST +1
Tangent linearization method of flight control system nonlinear tracking controller design
ActiveCN103454921AMeeting high demands in terms of designGood practical engineering application valueAdaptive controlLinear controlControl system design
The invention relates to a tangent linearization method of an aircraft nonlinear control tracking control system. Regarding nonlinear tracking controllers of a flight control system, the tangent linearization method of the aircraft nonlinear tracking control system is characterized by including the steps that state extension is conducted on the aircraft nonlinear control system, a state differential equation of a tangent linearization system is calculated; time varying linear system feedback stabilization gains are designed; the differential equation is solved to obtain four steps of a nonlinear flight control system tracking control law. Compared with the prior art, the method for designing the aircraft control system tracking controller based on tangent linearization is provided, complete equivalent linearization modeling can be conducted on the complex flight control system, and the tracking controller design can be conducted on the control system, an effective analysis tool is provided for implementing the control system in real time, the powerful theoretical basis and the technical support are further provided for meeting high requirements in the flight control system design aspects, and the method has good engineering application value.
Owner:PLA SECOND ARTILLERY ENGINEERING UNIVERSITY
Method for tuning PID parameters of linearity system with differentiation
The invention relates to a method for tuning PID parameters of a linearity system with differentiation. The method includes identifying the controlled process of currently known type linearity system with differentiation to obtain model parameters, selecting PID controller types based on control requirement according to the type of the controlled process, searching corresponding a PID parameter tuning formula from linearity system with differentiation PID controller parameter tuning table based on multi-capacity inertia standard transfer function according to the type of the controlled process and the type of the PID controller, and applying the calculated PID parameters to control a controlled process. No discussion on tuning PID parameters of a linearity system with differentiation is available in the prior art. The PID parameter tuning method is based on complete theoretical analysis and derivation, less known parameters are needed, and the calculation is simple. The method is applicable to linear control system with requirements on rapid reaction and large overshooting. The method is highly stable and robust and overcomes the defect of wearing of a performer due to improper tuning of PID parameters.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER
Self-adaptive nonlinear control system and method for internal thermally coupled distillation column
InactiveCN101887261AEasy to handleAccurate trackingTotal factory controlProgramme total factory controlNonlinear control lawDistillation
The invention relates to a self-adaptive nonlinear control system for an internal thermally coupled distillation column. The system comprises a field intelligent instrument and a distributed control system (DCS) which are directly connected with the internal thermally coupled distillation column, wherein the DCS comprises a storage device, a control station and an upper computer; the field intelligent instrument is connected with the storage device, the control station and the upper computer; and the upper computer comprises a self-adaptive nonlinear controller which is used for calculating and outputting control variable values of the internal thermally coupled distillation column and comprises a component deduction module, a self-adaptive model parameter correction module and a self-adaptive nonlinear control law solving module. The invention also provides a self-adaptive nonlinear control method for the internal thermally coupled distillation column. The control system and the method of the invention can well overcome the strong nonlinear characteristics of the internal thermally coupled distillation column, and have high on-line operational speed, and good servo tracking control effect and interference suppression effect.
Owner:ZHEJIANG UNIV
Dynamo nonlinear control system based on synchronized phasor measurement technology and method thereof
The invention discloses a dynamo nonlinear control system based on synchronized phasor measurement technology and a method thereof. The control system of the invention comprises an information bus 2; an information output interface of a global positioning system 1 is connected with the information bus 2; a substation PMU 3 and a control centre station 4 are connected with the information bus 2 via a communication interface; a data output end of the substation PMU 3 is connected with a local controller 5. The invention has the control method that the global positioning system 1 transmits a time signal to the information bus 2 via the information output interface; the substation PMU 3 synchronously transmits the information to the information bus 2; the control centre station 4 synchronously treats and stores the time signal of the global positioning system 1 and the signal of the substation PMU 3 from the information bus 2 via the communication interface; then, the treatment result is transmitted to the substation PMU 3 first, and the substation PMU 3 transmits the information to the local controller 5, which better improves the dynamical quality of a power system as well as drastically improves the stability of the power system.
Owner:XI AN JIAOTONG UNIV
Attitude control method for propeller unmanned drone aircraft based on adaptive control
InactiveCN104965515AFast and Accurate TrackingStrong ability to resist external interferenceAttitude controlReference modelLinear control
The invention provides an attitude control method for a propeller unmanned drone aircraft based on adaptive control, and the method comprises the steps: 1, determining an unmanned plane linear mathematic model; 2, determining an unmanned plane linear mathematic reference model; 3, employing an adaptive control algorithm to calculate a control law upsilon of an unmanned plane linear control system. The method is used for designing an attitude controller of an unmanned plane, thereby enabling the actual control output of the system to quickly and accurately track the reference adaptive control of models. The method is high in resistance to external interference.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Adaptive fault detection and isolation method for uncertain nonlinear control system
ActiveCN111679658AAccurately judge failuresRobustElectric testing/monitoringNonlinear controlSelf adaptive
The invention discloses an adaptive fault detection and isolation method for an uncertain nonlinear control system, and relates to a fault detection and isolation method for a nonlinear control system. The invention adaptive fault detection and isolation method to solve the problems that the fault type judged by the existing fault diagnosis method is single and the uncertainty of system parametersis not considered. The adaptive fault detection and isolation method comprises the steps of: designing an uncertain parameter estimation scheme for a control system model, and updating an uncertain parameter estimation value in real time; and designing a fault detection state estimator based on the obtained estimated value of the uncertain parameter, estimating the system state to obtain a systemstate estimation residual error; and when detecting that the system has a fault at a certain moment, judging which type the fault belongs to, i.e., starting an isolation scheme. The adaptive fault detection and isolation method belongs to the field of nonlinear control system fault detection and isolation.
Owner:HARBIN INST OF TECH
Ultra-pure adaptive nonlinear control system and method for internal thermally coupled distillation column
InactiveCN101881964AEasy to handleAccurate trackingTotal factory controlProgramme total factory controlDistillationModel parameters
The invention discloses an ultra-pure adaptive nonlinear control system for an internal thermally coupled distillation column. The system comprises a filed intelligent instrument and a DCS system which are directly connected with the internal thermally coupled distillation column, wherein the DCS system comprises a storage device, a control station, and an upper computer; the filed intelligent instrument is connected with the storage device, the control station, and the upper computer; the upper computer comprises an ultra-pure adaptive nonlinear controller which is used for calculating and outputting the control variable value of the internal thermally coupled distillation column; and the ultra-pure adaptive nonlinear controller comprises a component deduction module, a model parameter adaptive correction module, and an adaptive ultra-pure control law solving module. The invention also provides an ultra-pure adaptive nonlinear control method for the internal thermally coupled distillation column. The control system and the control method can well process the strong nonlinear characteristics of the ultra-pure internal thermally coupled distillation column, and have efficient online operating rate and extremely good servo tracking control effect and interference suppression effect.
Owner:ZHEJIANG UNIV
Long-stroke DC linear motor and control system thereof
ActiveCN102097916AImprove efficiencyHigh precisionAC motor controlMagnetic circuit rotating partsCompensation windingLinear control systems
The invention discloses a long-stroke DC linear motor and a control system thereof, which relate to the liner motors and aim to solve the problems of difficulties in the simultaneously achievement of high power and high accuracy because the conventional DC linear motor and the control system thereof only have a set of winding and a drive controller. An even number of flat constant magnetic permanent magnets are arranged on magnetic conductive yoke parts respectively. A control winding is uniformly wound on the outer surface of a middle magnetic conductive yoke. A plurality of sections of power windings are uniformly and closely wound on the outer surface of the control winding. An even number of compensation windings are wound on the magnetic conductive yoke parts respectively. A secondary part adopts a double-side secondary part. A main permanent magnet is a flat permanent magnet. Four elongated auxiliary permanent magnets are arranged on the four sides of the main permanent magnet respectively. A permanent magnet holder is fixedly arranged about the four elongated auxiliary permanent magnets. The long-stroke DC linear motor and the control system thereof have the advantages of achieving high thrust and high accuracy in acceleration and deceleration control, achieving high accuracy in speed and position control, improving current and thrust dynamic response and the like, and are applicable to various DC linear control systems.
Owner:HARBIN INST OF TECH
Ultra-pure self-adaptive nonlinear control system and method for internal thermally coupled distillation column
InactiveCN101887263AAccurate trackingAvoid interferenceTotal factory controlProgramme total factory controlNonlinear control lawDistillation
The invention relates to an ultra-pure self-adaptive nonlinear control system for an internal thermally coupled distillation column. The system comprises a field intelligent instrument and a distributed control system (DCS) which are directly connected with the internal thermally coupled distillation column, wherein the DCS comprises a storage device, a control station and an upper computer; the field intelligent instrument is connected with the storage device, the control station and the upper computer; and the upper computer comprises an ultra-pure self-adaptive nonlinear controller which is used for calculating and outputting control variable values of the internal thermally coupled distillation column and comprises a component deduction module, a self-adaptive parameter correction module and an ultra-pure self-adaptive nonlinear control law solving module. The invention also provides an ultra-pure self-adaptive nonlinear control method for the internal thermally coupled distillation column. The control system and the method of the invention can well overcome the strong nonlinear characteristics of the ultra-pure internal thermally coupled distillation column, and have high on-line operational speed, and good servo tracking control effect and interference suppression effect.
Owner:ZHEJIANG UNIV
Aero-engine nonlinear control system modeling method
ActiveCN111274692ASimple Online ModelingFast Online ModelingDesign optimisation/simulationControl engineeringProcess engineering
The invention discloses an aero-engine nonlinear control system modeling method. The method comprises the following steps: setting an initial value of a nonlinear adaptive filter for identifying inputand output of a control system; recording current and historical moment inputs of the control system; performing inner product operation on an input vector obtained on the basis of the input and theweight of the FIR filter; obtaining FIR filtered output, obtaining a local interval index and a local normalized coordinate of the local interval index in the spline interpolator; generating spline interpolator output; output of the control system at the current moment is collected through a sensor. The output of the spline interpolator is compared with the output of the spline interpolator; obtaining filtering errors, respectively calculating the weight of the FIR filter and the gradient of the spline interpolation point at the current moment according to the filtering error; respectively calculating the gradient momentum of the weight of the FIR filter and the gradient momentum of the spline interpolation point according to the gradient, respectively updating the weight vector of the FIRfilter and the coordinates of the spline interpolation point, and continuing to carry out the adaptive process of the next moment from the second step.
Owner:XI AN JIAOTONG UNIV
Nonlinearly controlled high-precision wave generation system and method
The invention discloses a nonlinearly controlled high-precision wave generation system. The nonlinearly controlled high-precision wave generation system comprises a computer control driving system, a mechanical transmission system and a wave generation board which are connected with one another sequentially, wherein the computer control driving system is used for generating a nonlinear control signal and driving the wave generation board to do a nonlinear motion through the mechanical transmission system. By adoption of the nonlinearly controlled system, waves which are more complicated and variable than waves generated by a linearly controlled system can be generated, so the wave generation precision and the wave generation accuracy can be improved. An embedded system, a programmable controller or an industrial control computer is used as a computer control unit according to different application requirements on control precision, response speed and stability; and on the premise of guaranteeing high precision and high response speed, the flexibility and the stability of operation of the system are enhanced, and the maintenance cost is reduced. In a mechanical part, a ball screw nut pair is adopted for driving; by adoption of a more stable transmission structure, the control precision and the stability are enhanced, and the reliability of the whole system during working for long time is guaranteed. The invention also discloses a nonlinearly controlled high-precision wave generation method.
Owner:SUN YAT SEN UNIV
Non-line-of-sight control system for underwater robot
ActiveCN106826837AEasy to operateMeet operational needsProgramme-controlled manipulatorControllers with particular characteristicsHuman–machine interfaceTelecommunications link
The invention relates to a non-line-of-sight control system for an underwater robot. The non-line-of-sight control system comprises a control upper computer, a communication link and a nonlinear PID (Proportion Integration Differentiation) control system, wherein the control upper computer is positioned at the upper layer and is used for displaying differential motion of orientation of a site user and the underwater robot; the communication link is positioned at the middle layer and is used for controlling communication between the upper computer and the underwater robot; the nonlinear PID control system is positioned at the lower layer and is used for controlling the direction of the underwater robot. The non-line-of-sight control system has the advantages that the purpose that the user controls the direction of the underwater robot with extremely small error by the control upper computer is realized, and the orientation of the underwater robot is fed back to the user by a human-computer interface; and by the non-line-of-sight control system, the operation of the underwater robot is simple, the control accuracy is improved, the steady-state error is reduced, and the underwater robot can be correspondingly adjusted according to the specific condition of water environment, so that the operating requirements of the user can be met, and the non-line-of-sight operation is realized.
Owner:OUBO INTELLIGENT TECH SHANGHAI CO LTD
A linear control system for a vehicle light assembly that combines taillight functions
ActiveCN109050393ASatisfy the output effectMeet high light outputSemiconductor lamp usageOptical signallingLinear controlEngineering
The invention discloses a linear control system for a vehicle light assembly that combines taillight functions, including a left turn light circuit, Right Turn Lamp Circuit, Position Lamp Circuit andBrake Lamp Circuit: the right turn signal lamp circuit outputs a constant current to drive the LED to emit light through the first driving chip U1, The left turn lamp circuit outputs a constant current to drive the LED to emit light through the second driving chip U2, the brake lamp circuit outputs a constant current to drive the LED to emit light through the third driving chip U3, and the position lamp circuit outputs a constant current to drive the LED to emit light through the fourth driving chip U4. The left / right turn signal lamp, position lamp and brake lamp of the vehicle lamp are controlled to emit light by the driving chip, so as to meet the high light output of the night running lamp of the daytime running lamp; Simultaneously has the fault detection function, when the position lamp single malfunction, the entire position lamp normal work, satisfies the position lamp output effect, but when the turn signal lamp / position lamp single LED malfunction, the entire turn signal lamp / position lamp does not output.
Owner:宁波市富来电子科技有限公司
Linear control system of broadband solid-state power amplifier and control method thereof
PendingCN112994620AOvercoming defects such as large fluctuations in power gainHigh control precisionPower amplifiersAmplifier modifications to raise efficiencyUltra-widebandLinear control
The invention discloses a linear control system of a broadband solid-state power amplifier and a control method thereof, the system comprises a control unit, a preceding-stage power amplifier unit and a last-stage power amplifier unit, and is characterized in that the preceding-stage power amplifier unit and the last-stage power amplifier unit are sequentially connected in series, and the control unit is respectively connected with the preceding-stage power amplifier unit and the last-stage power amplifier unit. According to the invention, combined control of radio frequency input power attenuation control and chip drain electrode voltage regulation is adopted, linear multi-gear control of transmitting power in an ultra-wideband range is realized, and the ultra-wideband linear multi-gear control circuit has the advantages of linearly adjustable ultra-wideband power, automatic and rapid power regulation, high control precision, simple control implementation, low operation cost and the like.
Owner:中国船舶重工集团公司第七二三研究所
A Design Method of Aeroengine Nonlinear System Controller
The invention discloses a design method for a nonlinear system controller of an aero-engine. The method is directed at control problems of the affine nonlinear system of the aero-engine within a large deviation range. The method comprises the following steps: linearizing the nonlinear system of the aero-engine based on the theory of exact linearization, adopting the variable structure control in designing a non-linear sliding mode controller, changing a control structure with a purpose by using a linearized state variable to enable the linearized state variable to move based on the designed sliding mode track so as to offset parameter perturbation and exterior interference, finally directed at the key problem of designing non-linear controller parameters, adopting the artificial bee colony algorithm in adjusting the controller parameters, and calculating the optimal parameter to optimize the control effect. According to the invention, the method is directed at the problem of designing complex controller parameters, and obviates the need for tedious manual debugging and repeated verification. By using the bee colony algorithm in designing a reasonable target performance function, the method enables an automatic calculation of the optimal controller parameters and enables the non-linear controlling system of the aero-engine to have a satisfied dynamic performance and robust stability.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Tangent Linearization Method for Nonlinear Tracking Controller Design of Flight Control System
ActiveCN103454921BMeeting high demands in terms of designGood practical engineering application valueAdaptive controlControl system designNonlinear pid control
The invention relates to a tangent linearization method of an aircraft nonlinear control tracking control system. Regarding nonlinear tracking controllers of a flight control system, the tangent linearization method of the aircraft nonlinear tracking control system is characterized by including the steps that state extension is conducted on the aircraft nonlinear control system, a state differential equation of a tangent linearization system is calculated; time varying linear system feedback stabilization gains are designed; the differential equation is solved to obtain four steps of a nonlinear flight control system tracking control law. Compared with the prior art, the method for designing the aircraft control system tracking controller based on tangent linearization is provided, complete equivalent linearization modeling can be conducted on the complex flight control system, and the tracking controller design can be conducted on the control system, an effective analysis tool is provided for implementing the control system in real time, the powerful theoretical basis and the technical support are further provided for meeting high requirements in the flight control system design aspects, and the method has good engineering application value.
Owner:PLA SECOND ARTILLERY ENGINEERING UNIVERSITY
Ultra-pure self-adaptive nonlinear control system and method for internal thermally coupled distillation column
InactiveCN101887263BAccurate trackingAvoid interferenceTotal factory controlProgramme total factory controlNonlinear control lawDistillation
Owner:ZHEJIANG UNIV
Modeling Method for Aeroengine Nonlinear Control System
ActiveCN111274692BSimple Online ModelingFast Online ModelingDesign optimisation/simulationAviationClassical mechanics
The invention discloses a modeling method for a nonlinear control system of an aero-engine. The steps include: setting the initial value of a nonlinear adaptive filter for identifying the input and output of the control system, recording the current and historical input of the control system, and calculating the The input vector obtained from the above input and the FIR filter weight inner product operation, the FIR filter output is obtained, and its local interval index and local normalized coordinates in the spline interpolator are obtained, and the output of the spline interpolator is generated, which is collected by the sensor The output of the control system at the current moment is compared with the output of the spline interpolator to obtain the filter error, and the FIR filter weight and the gradient of the spline interpolation point are calculated respectively according to the filter error, and the FIR filter is calculated respectively according to the gradient The gradient momentum of the weight and the gradient momentum of the spline interpolation point update the FIR filter weight vector and the coordinates of the spline interpolation point respectively, and continue the adaptive process at the next moment from the second step.
Owner:XI AN JIAOTONG UNIV
Process to control a networked system of time varying devices
ActiveUS10926776B1Programme controlAutonomous decision making processLinear controlControl engineering
Described is a control command system for generating control commands for a vehicle. The system receives a networked control system corresponding to a network of subsystems of sensors and actuators of the vehicle and data collected from sensors on the vehicle. Multiple subsystems are formed from the networked control system. A dynamic mode decomposition with control (DMDc) process is applied to each subsystem, yielding a linear approximation for each subsystem. The linear approximations are combined into a single linear approximation for the networked control system, and a linear control system approximating the networked control system is output. Control commands are generated for the vehicle based on the linear control system, which cause the vehicle to perform a vehicle operation.
Owner:HRL LAB
A microgrid energy optimal scheduling method based on adaptive control
ActiveCN112003330BAchieving Adaptive ControlImprove adaptabilitySingle network parallel feeding arrangementsAc network load balancingLinear controlOptimal scheduling
The present invention relates to a micro-grid energy optimal scheduling method based on adaptive control, comprising: S1, acquiring a random linear control system; S2, constructing an adaptive micro-grid optimal scheduling model according to the random linear control system acquired in step S1; S3, pairing The adaptive microgrid optimal scheduling model constructed in step S2 performs MPC optimal scheduling. The beneficial effect of the present invention is: the microgrid energy optimal scheduling method based on adaptive control provided by the present invention proposes an optimization strategy based on adaptive stochastic model predictive control under the joint optimal scheduling framework of stochastic energy and energy storage systems , and compared with the robust model predictive control method based on scene construction, and designed a comparison model of different adaptive update strategies and different adjustment parameters, the method proposed in the present invention can effectively improve the scheduling performance of the system and the adaptability of the model , reducing the conservatism of the system.
Owner:ZHEJIANG ZHENENG TECHN RES INST +1
A PID Parameter Tuning Method for Differential Linear Systems
The invention relates to a method for tuning PID parameters of a linearity system with differentiation. The method includes identifying the controlled process of currently known type linearity system with differentiation to obtain model parameters, selecting PID controller types based on control requirement according to the type of the controlled process, searching corresponding a PID parameter tuning formula from linearity system with differentiation PID controller parameter tuning table based on multi-capacity inertia standard transfer function according to the type of the controlled process and the type of the PID controller, and applying the calculated PID parameters to control a controlled process. No discussion on tuning PID parameters of a linearity system with differentiation is available in the prior art. The PID parameter tuning method is based on complete theoretical analysis and derivation, less known parameters are needed, and the calculation is simple. The method is applicable to linear control system with requirements on rapid reaction and large overshooting. The method is highly stable and robust and overcomes the defect of wearing of a performer due to improper tuning of PID parameters.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER
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