摘要:
A plant control system includes: a numerical calculation execution part which calculates the operation characteristic of the plant; a model for simulating the plant control characteristic according to information on the numerical calculation result; a learning part which learns the plant operation method by using the model; a learning information database which stores learning information data on the learning part; a pattern generation part which generates pattern data expressing a state input based on the learning information data in the learning part with a smaller input number than the model input dimension; a pattern database which stores the pattern data generated in the pattern generation part; and a learning result determination part which selects a learning result having a preferable control effect from the learning result obtained by using a plurality of patterns.
摘要:
A plant control apparatus has a measurement signal DB, an operation signal DB, a numerical value analysis executing unit, a numerical value analysis result DB, a model for estimating a value of a measurement signal for an operation signal, learning unit using the model, a learning information DB, a control logic DB for information used by an operation signal generating unit, a knowledge DB for plant running characteristics, and an analyzing unit processing information in the numerical value analysis result DB by information in the knowledge DB, learning information DB, operation signal DB, and measurement signal DB, wherein the analyzing unit includes at least one of a learning base analyzing unit checking adequacy of an operation method, a signal analyzing unit for evaluating an effect of the operation signal upon the plant and presence/absence of an abnormal signal, and a knowledge DB updating unit correcting information in the knowledge DB.
摘要:
A plant control apparatus has a measurement signal DB, an operation signal DB, a numerical value analysis executing unit, a numerical value analysis result DB, a model for estimating a value of a measurement signal for an operation signal, learning unit using the model, a learning information DB, a control logic DB for information used by an operation signal generating unit, a knowledge DB for plant running characteristics, and an analyzing unit processing information in the numerical value analysis result DB by information in the knowledge DB, learning information DB, operation signal DB, and measurement signal DB, wherein the analyzing unit includes at least one of a learning base analyzing unit checking adequacy of an operation method, a signal analyzing unit for evaluating an effect of the operation signal upon the plant and presence/absence of an abnormal signal, and a knowledge DB updating unit correcting information in the knowledge DB.
摘要:
A control device for a plant includes a manipulation signal generation section for generating the manipulation signal to the plant, a model adapted to simulate a characteristic of the plant, a learning section for generating an input signal of the model so that an output signal obtained by the model simulating the characteristic of the plant satisfies a predetermined target, a learning signal generation section for calculating a learning signal in accordance with a learning result in the learning section, a manipulation result evaluation section for calculating a first deviation as a deviation between a first measurement signal of the plant obtained as a result of application of a certain manipulation signal to the plant and a target value of the measurement signal, and a second deviation as a deviation between a second measurement signal of the plant obtained as a result of application of an updated manipulation signal to the plant and the target value, and a correction signal generation section for generating, when the second deviation calculated by the manipulation result evaluation section is greater than the first deviation, a correction signal of the manipulation signal to be generated by the manipulation signal generation section.
摘要:
A gas concentration estimation device of a coal-burning boiler adapted to estimate the concentration of the gas component included in an exhaust gas emitted from a coal-burning boiler using a neural network, including: a process database section adapted to store process data of a coal-burning boiler; a filtering processing section adapted to perform filtering processing for extracting data suitable for learning of a neural network from the process data stored in the process database section; a neural-network learning processing section adapted to perform learning processing of the neural network based on the data extracted by the filtering processing section and suitable for learning of the neural network; and a neural-network estimation processing section adapted to perform estimation processing of the CO concentration or the NOx concentration in the exhaust gas emitted from the coal-burning boiler based on the learning processing of the neural-network learning processing section.
摘要:
A controlling device that includes a model that predicts the value of a measured signal obtained when an operation signal is given to a thermal power generation plant, a function that learns a method of generating a model input such that a model output satisfies the plant value, a function that determines an operation signal to be given to the plant according to the learning result, a database that stores measured signal limit values set in advance, an external input interface that fetches measured signals from the plant, a measured signal database that stores the values of the fetched measured signals, and a function that determines an initial value of the plant model output value by using limit values of the measured signals and at least one of an average value, a maximum value, and a minimum value that are calculated from the measured signals stored in a measured signal database.
摘要:
It is an object to provide an operation control apparatus and an operation control method which allow operation of a control object without causing adverse affect on the operational condition of the control object, even when a deviation of a real system from a model (model error) arises. The operation control method employable in the control apparatus controls a control object by calculating operation amount to maximize or minimize an evaluation value obtained from a control deviation of the control object from a target value. The operation control method includes the steps of: establishing a model for simulating a property of the control object; calculating operation amount to maximize or minimize an evaluation value based on a control deviation of the model as a target; calculating an evaluation value based on a control deviation in controlling the control object by the operation amount; and determining an operation amount change width defined by a difference between current step operation amount and next step operation amount, based on the deviation of the control object from the model in the evaluation value of the control deviation.
摘要:
Operation control method employable in a control apparatus controls a control object by calculating an operation amount to maximize or minimize an evaluation value obtained from a control deviation of the control object from a target value. The operation control method includes the steps of: establishing a model for simulating a property of the control object; calculating the operation amount to maximize or minimize an evaluation value based on a control deviation of the model as a target; calculating an evaluation value based on a control deviation in controlling the control object by the operation amount; and determining an operation amount change width defined by a difference between current step operation amount and next step operation amount, based on the deviation of the control object from the model in the evaluation value of the control deviation.
摘要:
In a controlling device that uses a model for simulating characteristics of a control target to learn a method of generating a model input that satisfies a target model output value and generates an operation signal according to a learning result, a target model output value for satisfying an operation target value is determined from measured signals from the control target.The controlling device comprising: a model for predicting the value of a measured signal obtained when an operation signal is given to the control target, a function for learning a method of generating a model input so that a model output satisfies the target value, a function for determining an operation signal to be given to the control target according to the learning result, a database for storing measured signal limit values set in advance, an external input interface for fetching measured signals from the control target, a measured signal database for storing the values of the fetched measured signals, and a function for determining an initial value of the target model output value by using limit values of the measured signals and at least one of an average, a maximum value, or a minimum value that are calculated from the measured signals stored in the measured signal database.
摘要:
An image processing device is provided that includes an establishment unit configured to establish a first connection with a first information processing device, a detector configured to detect a connection request that requests the image processing device to terminate the first connection with the first information processing device and thereafter establish a second connection with a second information processing device, the second connection being an exclusive connection configured to forbid establishment of connections other than the second connection while being established, and a restriction unit configured to restrict the second connection with the second information processing device from being established when the detector detects the connection request in a state where the first connection is established between the image processing device and the first information processing device.