Adaptive control system for dynamic objects with periodic coefficients and lag |
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IPC classes for russian patent Adaptive control system for dynamic objects with periodic coefficients and lag (RU 2450301):
      
 Self-adjusting electric drive / 2450300
Self-adjusting electric drive includes adders, corrector, amplifier, electric motor with gear, position resolver, square-wave generator, dividers, steady signal source, integrator, sine function generator, multipliers, amplitude setter, square-root extractor.
 Control device for marine electric propulsion system based on fuzzy controller / 2450299
Device consists of comparison element; system mismatch change rate evaluator; fuzzy speed controller on the basis of microcontroller; control system for independent three-phase voltage inverter on the basis of microcontroller; independent three-phase voltage inverter and communication lines between them.
 Nonfuzzy logic control for process control / 2445669
Nonfuzzy logic control includes fuzzificator with seven inputs, logic output unit with specified membership functions of nonfuzzy terms of variables, to the output of which there supplied are input and output variables, as well as discrete input and output variables of control object, defuzzificator, actuator, control object and feedback sensor. Comparison device is implemented as the part of conventional part of production rules of fuzzy logic output unit. In order to improve the accuracy and quick action, input and output variables of the control are represented with a set of nonfuzzy terms, and additional increase in quick action of the control has been achieved by automatic location by means of ANY-TIME algorithm to the beginning of production system of rules with maximum actuation frequency. Enlargement of control functions of the control has been achieved due to application in antecedents of production rules of discrete input and output variables of control object. Invention provides automatic control of quick-acting processes described verbally and requiring the qualitative control, the time constant of which is less than response time of known logic controls.
 Neuron network control for calcination process control in shaft-type furnaces / 2445668
Control includes control object, primary data processing unit, data input/output unit, PID-control algorithm implementation unit, system operation history unit, control method selection unit, simulation unit the basis of which is neuron network model of the process; at that, it includes the following: control unit based on neuron network; smart classifier unit. At that, control unit and smart classifier unit together with system operation history unit and simulation unit are combined into multiparameter control unit.
 Combined adaptive control system for dynamic objects with periodic coefficients / 2441266
In a system that comprises a block of coefficients setting, the first summing block, the first multiplier, an integrator, the second multiplier, a control object, a block of coefficients setting, a parallel compensator filter is added, besides, the inlet of the parallel compensator filter is connected to the outlet of the first summing block, the outlet of the parallel compensator filter is connected to the first and second inlets of the first multiplier and to the second inlet of the second multiplier, the outlet of the first multiplier is connected to the integrator's inlet and to the first inlet of the second summing block, the second inlet of the second summing block is connected to the outlet of the delay block by a value that is equal to the period of control object parameters variation, the outlet of the second summing block is connected to the first inlet of the third summing block and with the inlet of the delay block, the second inlet of the third summing block is connected to the integrator's outlet, the outlet of the third summing block is connected to the first inlet of the second multiplier, the outlet of the second multiplier is connected to the inlet of the control object.
 Self-adjusting control system for astatic objects with control delay / 2437137
System includes control object, two coefficient setting units, five adders, two multipliers, two integrators, delay unit, linear part of adaptive control, adjusting unit and scanner.
 Self-adjusting control system for objects with control delay / 2437136
System includes control object, two coefficient setting units, five adders, two multipliers, two integrators, delay unit, adjusting unit and scanner.
 Intelligent system for controlling complex organised objects / 2435187
Intelligent system for controlling complex organised objects has a control object, two actuating units, two control units, a first unit for measuring the current output coordinate value, a second unit for measuring the current value of internal parameters of the state of the object, two robust filters, a first unit for setting the output coordinate, an object model without delay, a second unit for setting parameters of the state of the object, four comparator units, two adders, a delay unit, a unit for evaluating the state of the object, two extrapolation units, a unit of threshold elements, a unit for generating parametric control input, a parametric input signal inverter, a coincidence circuit, a unit for setting the reference control error and a switch circuit.
 Control procedure for technical installation cooling / 2432591
Invention refers to procedure for control of technical installation cooling. The technical installation has at least one electrical component, for example, a transformer and a cooling system with at least one cooling element for cooling the electrical component. At least one sensor measures temperature and/or viscosity of cooling medium in the cooling system. There is achieved an optimal control of the cooling system due to control of the electrical component by means of selected profiles of control considering specific data of the electrical component.
 System of adaptive two-position control / 2430398
Procedure is realised by transmitting control effect of following kind to actuating device: if controlled variable crosses line of assignment top down, then duration of effect of adaptive output control signal transmitted to actuating device is determined with interval of time 1·Tu1, where 1 is coefficient of adaptation, while Tu1 is duration of lower half wave of auto-oscillation mode at two-position control; if controlled variable crosses line of assignment bottom-up, then actuating device is turned on after interval m·Tn3 for pulse of feed forward 1·(1-m)·Tu1, where m is coefficient of ratio of nominal load to actual, Tn3 is current value to upper half wave of auto-oscillation mode at two-position control.
 Self-adjusted control system for neutral-type delayed-control equipment / 2246123
Proposed system that can be used for pieces of equipment whose parameters are unknown variables or those slowly varying with time has piece of equipment under control, three factor specifying units, five adders, eight multipliers, five integrators, three delay units, and differentiating unit.
 Intellectual control system / 2251721
Device has control subject, two execution blocks, output coordinate sensor, sensor for value of coordinate adjusting action, delay block, control block, low frequency filter, adder, three comparison blocks, no-delay object model, two extrapolation blocks, output coordinate set-point device, object state parameters sensors block, object state set-point devices parameters block, robust filter, object state estimation block, threshold elements block, controlling parametric actions generator.
 Nonlinear robust system for controlling non-stationary objects / 2251722
System has control subject, coefficients setting block, two adding blocks, two multipliers and coefficient setting block.
 Method to limit parameters of device in operation / 2255894
Invention relates to methods of control and overload and failure protection of boom load-lifting cranes. According to proposed method, first and second threshold levels are set for at least one parameter characterizing load, geometry or operating conditions of device. Provision is made for checking said parameter in operation and comparing its value with first threshold level, forming of device control signal if parameter exceeds first threshold level, comparing parameter with second threshold level and forming signal to prohibit operation of device or its component part if second threshold level is exceeded. Moreover, rate of parameter changing is revealed, and first threshold level is set depending on rate of change of said parameter or reduced inertia moment or reduced mass of moving device or its component part.
 Adaptive system for controlling object with variable transporting delay / 2258950
System has set-point device, first adder, adjusting means, first object model, first delay element, second object model, adjustment block, processed product movement indicator, first quantizer, compensation adjusting means, second adder, multiplier, extrapolator, comparison element, second quantizer, second delay element, first, second, third and fourth keys.
 Device for modeling self-restoring system / 2259578
Device has controlling trigger, random pulses generators block, AND element, timer, random pulses generators group, second AND element, two OR elements, two counters and delay line.
 Tracking inverter with one-side two-pole width-pulse modulation / 2264644
Device additionally has second block for forming controlling signal and second block for forming sweeping signal. This provides in tracking inverter with one-side two-pole broad-pulse modulation the realization of control law with two control signal respectively for forming of output signal of positive and negative polarity with preservation of modulation type and proper order of commutation in pulse elements block during change of support signal sign.
 Adaptive control system for dynamic objects with periodical coefficients / 2265873
System can be used for controlling objects with parameters to be time-dependent values with constant period of change. System has object to be controlled, coefficient setting unit, two adders and two multipliers, delay unit.
 Intellectual controller with neuron network and self-modification rules / 2266558
Device has controlling neuron network, efficiency coefficient block, teaching neuron network, block for self-teaching rules of controlling neuron network, block for storing system operation history.
 Method for controlling chemical technological process / 2270468
Method for controlling chemical technological process includes current control over signal, connected to technological equipment positioned downstream relatively to chemical reactor, to determine transfer processes occurring there, while current control of signal includes periodic current control of signal of scanning line position from device, which carries information relatively to nominal operation parameters of process and following periodic observation of signal for detection of one or more transfer processes in aforementioned technological equipment above or below scanning line, which arced to alternation of material quality, received during chemical production process, then connection between change of product quality and detected transfer processes is determined, process parameter adjustment, connected to technological equipment positioned upstream, in response to change of quality of product. Also presented is method for controlling production of polyolefin in process of polyolefin production, for which reactor is utilized for polymerization of polyolefin.
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FIELD: physics. SUBSTANCE: system, having a coefficient unit, a first adder unit, a first multiplier, a second adder unit, a delay unit, series-connected second multiplier and control object, also includes a second delay unit, a second coefficient unit, a lag unit, third, fourth and fifth adder units, third and fourth multipliers. EFFECT: ensuring asymptotic stability of the equilibrium position of the investigated system for periodic action objects, having a known status time lag. 1 dwg
The invention relates to the technical Cybernetics and can be used to control periodic regimes of non-stationary dynamic objects containing the time-delay state. The closest technical solution to the present invention is an adaptive control system for dynamic objects with periodic coefficients (RF Patent No. 2265873. Official Bulletin. "Inventions and utility models". - 2005, No. 34, prototype)containing a unit job of the coefficients, the first adder, the first multiplier, a second adder, the delay unit, connected in series to the second multiplier and the object of regulation, the outputs of which are connected to corresponding inputs of a unit job of the coefficients, the inputs of the first adder connected to the corresponding outputs of the unit job factors, the first input of the second adder connected to the output of the first multiplier, a second input to the output of the delay unit, the output of the second adder connected to the first input of the second multiplier and the input of the delay unit, the output of the first adder connected to the first and second inputs of the first multiplier and with the second input of the second multiplier, the output of the second multiplier connected to the input of the regulation object. However, the disadvantage of this system is its failure to objects of regulation, containing the famous BP is the time delay for the state. Technical problem which the claimed invention is directed, is to ensure the asymptotic stability of the equilibrium position of the system for periodic actions with a known temporal delay for the state. The solution of this problem is due to the fact that in a system containing a unit job of the coefficients, the first summation block, the first multiplier, a second summation block, the delay unit, connected in series to the second multiplier and the object of regulation, according to the invention additionally introduced a second delay block, the second block set coefficients, block lag, third, fourth and fifth blocks of summation, third and fourth multipliers, the outputs of the object of regulation is connected to the corresponding inputs of the first unit of job factors, and unit delay, the outputs of which are connected to corresponding inputs of the second block set coefficients, the outputs of the first block of the task of the factors connected to respective inputs of the first unit summation, the output of the first summation block connected to the first and the second input of the first multiplier and to the second input of the second multiplier, the output of the first multiplier connected to the first input of the second summation block, W is the second input of the second summation block is connected to the output of the first delay unit, the output of the second summation block connected to the first input of the second multiplier and to the input of the first delay unit, the output of the second multiplier connected to the first input of the third summation block, the output of the second unit job factors connected to the corresponding inputs of the fourth block summation, the output of which is connected to the first and second inputs of the third multiplier and to the second input of the fourth multiplier, the output of the third multiplier connected to the first input of the fifth summation block, the second input is connected with the output of the second delay unit, the output of the fifth summation block connected to the first input of the fourth multiplier, and with the input of the second delay unit, the output of the fourth multiplier connected to the second input of the third summation block, the output of the third summation block is connected to the input of the regulation object. The invention is illustrated in the drawing, which presents a block diagram of the system. The system contains the object of regulation 1, the first block of the task of the coefficients 2, the first summation block 3, the first multiplier 4, a second summation block 5, the first delay unit 6, the second multiplier 7, the third summation block 8, block lag 9, the second block set 10 coefficients, the fourth summation block 11, the third multiplier 12, the fifth summation block 13, the second delay unit 14, h is twenty multiplier 15, y1,...,ymthe outputs of the regulation object, u is a scalar control. The object of the regulation is described by the equation:
where x(t) is the n-dimensional state vector of the object of the regulation; A(t+T), D(t+T), b(t+T), respectively non-stationary matrix state matrix with delayed argument and the control vector, the elements of which are T-periodic functions of time; y(t) is an m-dimensional vector of output coordinates of the regulation; ∗ the symbol of transposition; L - matrix output; τ - known temporary delay; u(t) is a scalar control action that satisfies the relation:
where χper(t) - custom periodic coefficients contour adaptation α0that β0- m-dimensional vectors of coefficients of the first 2 and the second 10 blocks set coefficients, respectively, determined from the conditions:
Using the methodology criteria giperustoichivost Vampirov, it can be shown that ensuring the asymptotic stability of system of regulation of the temperature is carried out by defining the settings of the regulator (2) in the form:
where γ0that γ1=const>0. The system operates as follows. The signals from the outputs of the object of regulation 1 go to corresponding inputs of a first block of the task of the coefficients 2 and the inputs of the delay unit 9. Within the first block of job factors 2 is the multiplication of the signal with the i-th input by a constant factor. The output signals of the first block set 2 coefficients are received at the respective inputs of the first summation block 3, where the fold. The output of the first summation block 3 goes to first and second inputs of the first multiplier 4, and the second input of the second multiplier 7. The output signal of the first multiplier 4 is supplied to the first input of the second summation block 5. To the second input of the second summation block 5 is fed the output signal of the first delay unit 6. The output of the second summation block 5 is input to the first delay unit 6 and the first input of the second multiplier 7, the output of which is fed to the first input of the third summation block 8. The output signals of the unit delay value τ 9 go to corresponding inputs of a second unit of job factors 10, inside of which are multiplied by the corresponding constant coefficients. The output signals of the unit job factors 10 on which are stated to corresponding inputs of a fourth summation block 11, where to fold. The output signal of the fourth block summation goes on first and second inputs of the third multiplier 12 and to the second input of the fourth multiplier 15. The output signal of the third multiplier 12 is supplied to the first input of the fifth summation block 13, to the second input of which is the output signal of the second delay unit 14. The output signal of the fifth summation block 13 is supplied to the first input of the fourth multiplier 15, and the input of the second delay unit 14. The output signal of the fourth multiplier 15 is supplied to the second input of the third summation block 8. The output of the third summation block 8 to the input of the object of regulation 1. The technical result consists in ensuring the asymptotic stability of the equilibrium position of the system for periodic actions with a known temporal delay for the state. This device can be implemented industrially based on standard components. Adaptive control system for dynamic objects with periodic coefficients and delay containing block set coefficients, the first summation block, the first multiplier, a second summation block, the delay unit, connected in series to the second multiplier and the object of regulation, characterized in that additionally the introduction is by the second delay unit, the second block set coefficients, block lag, third, fourth and fifth blocks of summation, third and fourth multipliers, the outputs of the object of regulation is connected to the corresponding inputs of the first unit of job factors, and unit delay, the outputs of which are connected to corresponding inputs of the second unit job factors, the outputs of the first block of the task of the factors connected to respective inputs of the first unit summation, the output of the first summation block connected to the first and second inputs of the first multiplier and to the second input of the second multiplier, the output of the first multiplier connected to the first input of the second summation block, the second input the second summation block is connected to the output of the first delay unit, the output of the second summation block connected to the first input of the second multiplier and to the input of the first delay unit, the output of the second multiplier connected to the first input of the third summation block, the output of the second unit job factors connected to the corresponding inputs of the fourth block summation, the output of which is connected to the first and second inputs of the third multiplier and to the second input of the fourth multiplier, the output of the third multiplier connected to the first input of the fifth summation block, the second input is associated with you is a one second delay unit, the fifth output of the summation block connected to the first input of the fourth multiplier, and with the input of the second delay unit, the output of the fourth multiplier is connected to the second input of the third summation block, the output of the third summation block is connected to the input of the object of regulation.
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