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WO/1986/005008 |
Method for controlling the alumina feed to reduction cells for the production of aluminium. There is employed an adaptive control with parameter estimation (3) and controller calculation (2) based upon the separation theorem. As a proces...
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WO/1985/004534 |
A speed control system for a servo motor has means (1) which presumes speed (Vl) at the tip of the machine load as well as torque stress or resilient displacement (d) in the load transmitting system, based upon a speed signal (v) and a t...
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JP2012014624 |
To provide an operation support device and an operation support method capable of reducing the operation burden on an operator.An input interface 71 specifies the purpose of a prediction simulation, and a determination means 72 determine...
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JP2011253529 |
To provide a novel method that combines advantages of both the local method and the global method, as well as provides additional benefits with respect to the distributed model identification.The distributed model identification can be a...
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JP2011248885 |
To provide a batch modeling and analysis system that enables the reliable determination of the current operational state of the on-line batch process with respect to the batch modeling.The batch modeling and analysis system uses a simple...
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JP2011248461 |
To realize highly accurate demand prediction that considers environmental conditions and responds to variations in environmental conditions.A demand prediction device for a plant control system includes a current value comparison unit A2...
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JP2011233002 |
To provide a disturbance observer, a feedback compensator, a positioning device, exposure device and a method for designing the disturbance observer which can stabilize a resonance phase using a phase lead compensator and a phase lag com...
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JP2011232977 |
To reduce a probability leading to a difficulty in PID parameter adjustment by a user.A PID parameter adjustment support device equipped with: a knowledge-type adjustment part 20 which carries out a knowledge-type adjustment method to se...
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JP2011210215 |
To provide a control device for a plant or a control device of a thermal power plant equipped with functions for terminating model correction by measurement data in a short period or avoiding increase in statistical model construction ti...
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JP2011204251 |
To help to keep track of versions of process plant items that may represent, or be capable of representing, entities in a process plant.The process plant items may comprise, for example, module objects which may be capable of specificall...
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JP2011197714 |
To provide a process control system capable of automatically generating control logic confirming with control know-how and checking how the control logic works.A process controller 21 for controlling processes of a plant 10 is provided w...
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JP2011141798 |
To provide a plant simulator apparatus or the like capable of performing highly accurate simulation by using a statistical model.The simulator includes a strict model simulation device for executing simulation of a plant based on plant d...
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JP2011128675 |
To automatically distinguish a simplifiable part of system representation by a quantitative reference, in a modeling tool for a design.An expression is extracted from a block of SysML, or a block diagram of Simulink (R) is converted into...
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JP2011118841 |
To provide a technique for efficiently testing stability by avoiding a combinatorial explosion regardless of the number and quality of nonlinear blocks when switched linearization is utilized for a simulation system including a plurality...
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JP2011107866 |
To achieve PLC side sequence control which is indispensable for interlocking with an interface for operating the pseudo memory of a PLC, and also a programmable display unit for debugging of the programmable display unit.A simulator 21 s...
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JP2011034179 |
To accurately and efficiently rebuild a plant model which is easier to understood than conventional types, and is easily maintained by using conventional software source codes.A plant model creating system 10 is provided with a software ...
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JP2011028416 |
To provide a plant optimum operation planning device which creates an optimum operation plan following a change of an operation condition of a plant and in which a temperature property of the plant is reflected.The plant optimum operatio...
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JP2011028527 |
To provide a constant-value stepping method and a fixed-rate stepping method to be carried out by a closed loop and a contact value stepping method generating device and a fixed rate stepping method generation device, having effects to q...
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JP2011008756 |
To appropriately evaluate the dynamic behavior prediction of a plant, which is obtained by simulation.The simulation evaluation system for evaluation a simulation result on the basis of data from a process simulation part which corrects ...
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JP2010282547 |
To provide an input variable selection support apparatus for carrying out support for input variable selection by presenting an index for narrowing down the input variables from input candidate variables by a simple method.The input vari...
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JP2010271890 |
To provide a parameter adjustment device allowing creation of a dynamic simulator simulating a property of an actual plant with high accuracy.This parameter adjustment device includes: the dynamic simulator 11 calculating a control amoun...
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JP2010225022 |
To provide a simulation system that achieves efficient reuse of a model parameter set in the past.The simulation system for adjusting a parameter so that an output of an simulation object matches a simulation result while the simulation ...
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JP2010218328 |
To provide a simulation device for improving accuracy of simulation, and for outputting a proper signal value to a controller, even when the execution cycle of a task to be executed by the controller is shorter than a model arithmetic cy...
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JP2010218008 |
To easily adjust a feedforward amount.In a support device, a level and a section of a correction operation amount that is the feedforward amount displayed in a first waveform display area 20 are adjusted by use of slider bars 22-27, so t...
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JP2010113725 |
To solve the problem that a control system utilizing a low speed scan cycle is unable to compensate for high frequency process variations which have a duration less than the round-trip communications time between the controller developin...
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JP2010108075 |
To perform simulation in a real time level without changing a sequence program in a programmable controller.A CPU includes a control unit for performing a simulation processing operation in accordance with a sequence program for simulati...
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JP2010079464 |
To provide a system and a method for controlling a plant, capable of stably controlling a plant by using a multivariable control system.The multivariable control system 2 receives virtual output from a tracking simulator 3. Giving the vi...
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JP2010049392 |
To enable a PID controller to precisely control a process.In a tuning device 100, operation data of an actual system including controllers 10 and processes 20 are used, and the modelings of virtual controllers 51 and virtual processes 52...
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JP2010051061 |
To provide a simulation system equipped with a servo analysis function, which easily measure transfer functions, such as frequency response, of a controller by connecting simulation software which uses a symbolic model for simulation and...
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JP2010033257 |
To provide a control device, capable of improving development efficiency.The control device 11 takes, as a control object, an automatic transmission 1 in which the process from input of a solenoid driving duty duty_sol as an operation qu...
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JP2010015596 |
To facilitate formation of a snapshot of simulation at a specific moment.The method comprises: forming a simulation system as a plurality of communicably connected simulation modules which forms a redundant signal for a parameter of simu...
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JP2010003284 |
To provide a plant operation system for a plant having a plurality of input items and a plurality of output items, which promptly determines an operation amount in consideration of each value of output items having a tradeoff relation.Th...
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JP2009199304 |
To provide a modeling device for creating a transfer function model of a temperature control system capable of performing correct modeling of the temperature control system without mistaking input time series data for output time series ...
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JP2009199305 |
To collect time series data suitable for creating a transfer function model in a data collection method for collecting data for creating the transfer function model of a control system for outputting an output signal as a response corres...
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JP2009169772 |
To provide a plant operation support device obtaining a control parameter proper for a process controller without imparting test operation to an actual process, and reflecting the obtained control parameter in the actual process.This pla...
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JP2009169771 |
To provide a plant operation support device allowing adjustment in consideration of balance of the whole plant even if a parameter is a parameter affecting a dynamic characteristic.This plant operation support device using an online simu...
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JP2009157550 |
To detect the abnormality of a plant based on an estimated value to be obtained by simulation following up the operation of the plant with high precision.The plant operation support system using a plant simulator for performing simulatio...
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JP2009134751 |
To improve, in particular, models of a physical system and the iterative process for obtaining a drive signal since, although a system and method for obtaining drive signals for a vibration system has enjoyed substantial success, there i...
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JP2009129042 |
To reduce an effect of rotating operation of each drive shaft on other drive shafts while suppressing vibration of a conveying actuator.When a right conveying actuator 32 extends and retracts, a controller 12 of a central control unit 10...
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JP2009122855 |
To provide a control parameter adjustment system properly terminating an adjustment test of a control parameter.The control parameter adjustment system includes a control parameter adjustment device 10 and a test monitoring device 20. Th...
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JP2009087082 |
To considerably reduce a user's time for setting, related to a steady plant simulator.A fixed value setting part 12 sets an arbitral variable out of variables (variables related to input/output state quantity or the like) of each plant c...
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JP2009080841 |
To provide a schematic generator for use in a process control network, in which control functions are implemented by field devices interconnected at various and distributed locations on a bus.The schematic generator polls each of the fie...
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JP2009054132 |
To provide an equipment control method for obtaining an intended output result for an optional input value based on a simple algorithm requiring less man-hour for development only by preparing an easily acquirable model control pattern i...
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JP2009048396 |
To enable a user to easily set control parameters for controlling an actual motor to a programmable controller.A simulator of motor motion comprises a computer having a motor library screen 15a for storing pixel parts 17a, 17b, 17c, etc....
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JP2009015477 |
To provide a simulation device which can perform simulation to follow operation of a control object with high accuracy.The simulation device which performs simulation to follow operation of the control object using a model expression sho...
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JP2008310648 |
To reduce occurrence of any selection mistake in selecting a PID parameter value by using a memo function.The adjustment support device of the PID parameter is provided with a simulation result storage part 21 for storing the simulation ...
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JP2008305228 |
To prevent a PID parameter value from being erroneously selected using a memorandum function.A PID parameter adjustment supporting device includes a simulation operation part 10 for simulating control responses, a simulation result stora...
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JP2008276545 |
To provide a process simulation device for defining an optional input/output relationship in a short time and having versatility to a connected controller.The process simulation device receiving a manipulated variable from a controller a...
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JP2008217259 |
To enhance the functions and processing speed of a control system without replacing a control device.A simulator 10 constructs an ideal feedback controller 40 into which a speed command is input, and an RMD decelerator model 70, as virtu...
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JP2008204002 |
To improve functionality and processing speed of a control system without exchanging a control device.In a simulator 10, a sequencer 20, an orbit generator 30, an ideal feedback control unit 40, a holder 50 and an actual system model 60 ...
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