JP2019209296A5 - Control devices, control systems, control methods and control programs - Google Patents
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- 238000000034 method Methods 0.000 title claims description 12
- 238000001228 spectrum Methods 0.000 claims description 46
- 230000005611 electricity Effects 0.000 claims description 39
- 239000003245 coal Substances 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 13
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- 239000002028 Biomass Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
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Description
本発明は、粉砕対象物を粉砕する粉砕機の制御装置、制御システム、制御方法および制御プログラムに関する。 The present invention relates to a control device, a control system, a control method and a control program of a crusher for crushing an object to be crushed.
ところで、特許文献１に記載の技術においては、オペレータが投入する石炭の炭種を入力することで、制御装置が石炭の炭種を特定する。しかしながら、石炭の炭種を予め特定していたとしても、実際に焚いてみないとどのような炭であるかを精度よく把握することが困難である。つまり、同じ炭種に係る石炭であっても、それぞれの性質（硬度など）にはある程度のばらつきがあるため、同一の炭種の石炭について同じ制御を行ったとしても、その微粉度にばらつきが生じる可能性がある。
本発明の目的は、石炭の性状に応じて自動的に適切に粉砕機を制御する制御装置、制御システム、制御方法および制御プログラムを提供することにある。
By the way, in the technique described in Patent Document 1, the control device specifies the coal type of coal by inputting the coal type of coal to be input by the operator. However, even if the coal type of coal is specified in advance, it is difficult to accurately grasp what kind of coal it is without actually burning it. In other words, even coals of the same coal type have some variation in their properties (hardness, etc.), so even if the same control is performed for coal of the same coal type, the degree of fineness will vary. It can occur.
An object of the present invention is to provide a control device, a control system, a control method and a control program for automatically and appropriately controlling a crusher according to the properties of coal.
本発明の第１の態様によれば、制御装置は、粉砕対象物を粉砕する粉砕機の制御装置であって、前記粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数以上の周波数で取得する計測値取得部と、前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の時系列を記憶する性状記憶部と、前記性状記憶部が記憶する時系列と、取得された前記計測値の時系列とに基づいて、前記粉砕対象物の性状を特定する性状特定部と、特定された前記性状に基づいて前記粉砕機に制御信号を出力する制御部と、を備える。 According to the first aspect of the present invention, the control device is a control device of a crusher that crushes an object to be crushed, and at least the measured value of a physical quantity related to electricity input to the motor of the crusher is measured. A measurement value acquisition unit that acquires a frequency equal to or higher than the power supply current frequency of the motor, a property storage unit that stores a time series of physical quantities related to electricity input to the motor according to the properties of the crushed object, and the property storage. A property specifying unit that specifies the properties of the object to be crushed based on the time series stored by the unit and the acquired time series of the measured values, and a control signal to the crusher based on the specified properties. It is provided with a control unit for outputting.
本発明の第２の態様によれば、制御装置は、粉砕対象物を粉砕する粉砕機の制御装置であって、前記粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数以上の周波数で取得する計測値取得部と、前記計測値の時系列の周波数解析により周波数スペクトルを特定する周波数解析部と、前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部と、前記性状記憶部が記憶する周波数スペクトルと、周波数解析により得られた周波数スペクトルとに基づいて、前記粉砕対象物の性状を特定する性状特定部と、特定された前記性状に基づいて前記粉砕機に制御信号を出力する制御部とを備える。According to the second aspect of the present invention, the control device is a control device of a crusher that crushes an object to be crushed, and at least the measured value of a physical quantity related to electricity input to the electric motor of the crusher is measured. A measurement value acquisition unit that acquires a frequency higher than the frequency of the power supply current of the electric motor, a frequency analysis unit that specifies the frequency spectrum by time-series frequency analysis of the measured values, and an input to the electric motor according to the properties of the object to be crushed. The properties of the object to be crushed are specified based on the property storage unit that stores the frequency spectrum of the physical quantity related to the electricity to be generated, the frequency spectrum stored by the property storage unit, and the frequency spectrum obtained by the frequency analysis. It includes a property specifying unit and a control unit that outputs a control signal to the crusher based on the specified property.
本発明の第３の態様によれば、第１または第２の態様に係る制御装置が、前記計測値の時系列の経時的な変化に基づいて、前記粉砕対象物の性状の変化の有無を判定する性状変化判定部をさらに備えるものであってよい。 According to the third aspect of the present invention, the control device according to the first or second aspect determines whether or not the properties of the crushed object are changed based on the time-series changes of the measured values. It may further include a property change determination unit for determination.
本発明の第４の態様によれば、第３の態様に係る制御装置が、前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の時系列および前記電動機に入力される電気に係る物理量の周波数スペクトルの少なくとも一方を記憶する性状記憶部と、前記性状記憶部が記憶する周波数スペクトルと周波数解析により得られた前記周波数スペクトルとの比較、または前記性状記憶部が記憶する時系列と取得された前記計測値の時系列との比較、の何れか一方に基づいて前記粉砕対象物の性状を特定する性状特定部と、周波数解析により得られた前記周波数スペクトル、および取得された前記計測値の時系列、のうち前記性状の特定に用いられないものの経時的な変化に基づいて、前記粉砕対象物の性状の変化の有無を判定する性状変化判定部とをさらに備えるものであってよい。 According to the fourth aspect of the present invention, the control device according to the third aspect has a time series of physical quantities related to electricity input to the electric motor and electricity input to the electric motor according to the properties of the object to be crushed. Comparison of the property storage unit that stores at least one of the frequency spectra of the physical quantity according to the above with the frequency spectrum stored by the property storage unit and the frequency spectrum obtained by frequency analysis, or the time series stored by the property storage unit. The property specifying unit that specifies the properties of the crushed object based on either one of the above and the comparison of the acquired measured values with the time series, the frequency spectrum obtained by frequency analysis, and the acquired said. It is further provided with a property change determination unit that determines whether or not there is a change in the properties of the crushed object based on the time series of the measured values, which is not used for specifying the properties over time. good.
本発明の第５の態様によれば、第１の態様に係る制御装置の前記性状特定部は、直近の前記計測値の時系列と、過去の前記計測値の時系列との偏差の累積に基づいて、前記性状を特定するものであってよい。 According to the fifth aspect of the present invention, the property specifying unit of the control device according to the first aspect accumulates deviations between the latest time series of the measured values and the time series of the past measured values. Based on this, the property may be specified.
本発明の第６の態様によれば、第３の態様に係る制御装置が、前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部を備え、前記性状変化判定部は、周波数解析により得られた周波数スペクトルと、前記性状記憶部が記憶する性状別の前記周波数スペクトルそれぞれとのパターンマッチングにより、前記粉砕対象物の性状の変化の有無を判定するものであってよい。 According to the sixth aspect of the present invention, the control device according to the third aspect includes a property storage unit that stores a frequency spectrum of a physical quantity related to electricity input to the electric motor according to the property of the object to be crushed. The property change determination unit determines whether or not there is a change in the property of the crushed object by pattern matching between the frequency spectrum obtained by the frequency analysis and the frequency spectrum for each property stored in the property storage unit. it may be intended to be.
本発明の第７の態様によれば、第１または第２の態様に係る制御装置において、前記粉砕対象物の性状別に、制御信号の補正に係るパラメータを記憶する補正パラメータ記憶部と、特定された前記性状と前記補正パラメータ記憶部が記憶する情報とに基づいて、制御信号の補正量を特定する補正量特定部と、をさらに備え、前記制御部は、前記特定された補正量に基づいて補正された制御信号を、前記粉砕機に出力するものであってよい。 According to the seventh aspect of the present invention, in the control device according to the first or second aspect, the correction parameter storage unit that stores the parameters related to the correction of the control signal is specified for each property of the crushed object. The control unit further includes a correction amount specifying unit that specifies the correction amount of the control signal based on the property and the information stored in the correction parameter storage unit, and the control unit is based on the specified correction amount. The corrected control signal may be output to the crusher.
本発明の第８の態様によれば、第１の態様に係る制御装置において、前記性状記憶部は、前記電動機に入力される電気に係る物理量の時系列に係る情報と、前記粉砕対象物の性状との組み合わせを教師データとして、前記時系列に係る情報を入力とし、前記粉砕対象物の性状を出力とするように学習された学習モデルを記憶し、前記性状特定部は、前記学習モデルによって前記粉砕対象物の性状を特定するものであってよい。 According to the eighth aspect of the present invention, in the control device according to the first aspect, the property storage unit has information on a time series of physical quantities related to electricity input to the electric motor and the object to be crushed. A learning model learned to input information related to the time series as training data in combination with properties and output the properties of the crushed object is stored, and the property identification unit uses the learning model. It may specify the property of the object to be crushed.
本発明の第９の態様によれば、第４の態様に係る制御装置において、前記性状記憶部は、前記電動機に入力される電気に係る物理量の時系列に係る情報と、前記粉砕対象物の性状の変化の有無との組み合わせを教師データとして、前記時系列に係る情報を入力とし、前記粉砕対象物の性状の変化の有無を出力とするように学習された学習モデルを記憶し、
前記性状変化判定部は、前記学習モデルによって前記粉砕対象物の性状の変化の有無を判定するものであってよい。
According to a ninth aspect of the present invention, in the control device according to the fourth aspect, the property storage unit includes information relating to the time series of the physical quantity relating to the electrical input to the electric motor, the grinding object A learning model trained to input the information related to the time series and output the presence or absence of the change in the properties of the crushed object is stored by using the combination with the presence or absence of the change in the properties as the teacher data.
The property change determination unit may determine the presence or absence of a change in the properties of the crushed object by the learning model .
本発明の第１０の態様によれば、第１または第２の態様に係る制御装置において、前記計測値取得部は、前記粉砕機が備える複数の電動機のうち第１の電動機に入力される電気に係る物理量の計測値を取得し、前記制御部は、前記複数の電動機のうち、前記第１の電動機より前記粉砕対象物の流れ方向の下流側に設けられる第２の電動機に、前記制御信号を出力するものであってよい。 According to the tenth aspect of the present invention, in the control device according to the first or second aspect, the measured value acquisition unit is the electricity input to the first motor among the plurality of motors included in the crusher. Acquiring the measured value of the physical quantity according to the above, the control unit sends the control signal to the second motor provided on the downstream side of the first motor in the flow direction of the object to be crushed among the plurality of motors. May be output.
本発明の第１１の態様によれば、第１０の態様に係る制御装置において、前記第１の電動機は、前記粉砕機のテーブルを回転させる電動機であって、前記第２の電動機は、前記粉砕機のロータリセパレータを回転させる電動機であってよい。 According to the eleventh aspect of the present invention, in the control device according to the tenth aspect, the first electric motor is an electric motor that rotates the table of the crusher, and the second electric motor is the crusher. It may be an electric motor that rotates the rotary separator of the machine.
本発明の第１２の態様によれば、第１または第２の態様に係る制御装置において、前記粉砕機は、微粉砕機であって、前記電動機は、誘導電動機であって、前記粉砕対象物は石炭およびバイオマスの少なくとも一方であってよい。 According to a twelfth aspect of the present invention, in the control apparatus according to the first or second aspect, the crusher is a pulverizer, the electric motor is a induction motor, the grinding object Can be at least one of coal and biomass.
本発明の第１３の態様によれば、制御システムは、粉砕対象物を粉砕する粉砕機の制御装置であって、前記粉砕機の電動機への入力電流の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得する計測値取得部と、前記粉砕機に制御信号を出力する制御部と、を備える制御装置と、前記制御装置と遠隔に設けられ、前記計測値取得部が取得した前記計測値の時系列に基づいて、前記制御信号に係る計算を行う演算装置とを備え、前記演算装置は、前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の時系列を記憶する性状記憶部と、前記性状記憶部が記憶する時系列と、取得された前記計測値の時系列とに基づいて、前記粉砕対象物の性状を特定する性状特定部と、特定された前記性状に基づいて前記粉砕機に制御信号を出力する制御部と、を備える。 According to the thirteenth aspect of the present invention, the control system is a control device for a crusher that crushes an object to be crushed, and the measured value of the input current of the crusher to the electric motor is at least the power supply current of the electric motor. A control device including a measurement value acquisition unit that acquires a measurement value in a sampling cycle corresponding to the frequency of the above, a control unit that outputs a control signal to the crusher, and a control device that is remotely provided from the control device and is acquired by the measurement value acquisition unit. A computing device that performs calculations related to the control signal based on the time series of the measured values is provided, and the computing device is used when the physical quantity of electricity input to the electric motor is calculated according to the properties of the crushed object. Based on the property storage unit that stores the sequence, the time series that the property storage unit stores, and the time series of the acquired measured values, the property identification unit that specifies the properties of the crushed object is specified. A control unit that outputs a control signal to the crusher based on the above-mentioned properties is provided .
本発明の第１４の態様によれば、制御システムは、粉砕対象物を粉砕する粉砕機の制御装置であって、前記粉砕機の電動機への入力電流の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得する計測値取得部と、前記粉砕機に制御信号を出力する制御部と、を備える制御装置と、前記制御装置と遠隔に設けられ、前記計測値取得部が取得した前記計測値の時系列に基づいて、前記制御信号に係る計算を行う演算装置とを備え、前記演算装置は、前記計測値の時系列の周波数解析により周波数スペクトルを特定する周波数解析部と、前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部と、
前記性状記憶部が記憶する周波数スペクトルと、周波数解析により得られた周波数スペクトルとに基づいて、前記粉砕対象物の性状を特定する性状特定部と、
特定された前記性状に基づいて前記粉砕機に制御信号を出力する制御部と
を備える制御システム。
According to the fourteenth aspect of the present invention, the control system is a control device for a crusher that crushes an object to be crushed, and a measured value of an input current of the crusher to an electric motor is set to at least a power supply current of the electric motor. A control device including a measurement value acquisition unit that acquires a measurement value in a sampling cycle corresponding to the frequency of A computing device that performs calculations related to the control signal based on the time series of the measured values is provided, and the computing device includes a frequency analysis unit that specifies a frequency spectrum by frequency analysis of the measured values in a time series. A property storage unit that stores a frequency spectrum of a physical quantity related to electricity input to the motor according to the property of the object to be crushed, and a property storage unit.
A property specifying unit that specifies the properties of the object to be crushed based on the frequency spectrum stored in the property storage unit and the frequency spectrum obtained by frequency analysis.
With a control unit that outputs a control signal to the crusher based on the specified properties
Control system with.
本発明の第１５の態様によれば、第１３または第１４の態様に係る制御システムは、前記制御装置は、複数の粉砕機を制御する複数の制御装置の１つであって、前記演算装置は、前記複数の制御装置が取得した前記計測値の時系列それぞれに基づいて、各制御装置における前記制御信号に係る計算を行うものであってよい。 According to the fifteenth aspect of the present invention, in the control system according to the thirteenth or fourteenth aspect, the control device is one of a plurality of control devices for controlling a plurality of crushers, and the arithmetic unit. May perform the calculation related to the control signal in each control device based on each of the time series of the measured values acquired by the plurality of control devices .
本発明の第１６の態様によれば、制御方法は、粉砕対象物を粉砕する粉砕機の制御方法であって、前記粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得するステップと、前記粉砕対象物の性状別に前記電動機に入力される電気に係る物理量の時系列を記憶する性状記憶部が記憶する時系列と、取得された前記計測値の時系列とに基づいて、前記粉砕対象物の性状を特定するステップと、特定された前記性状に基づいて前記粉砕機に制御信号を出力するステップと、を有する。 According to the 16th aspect of the present invention, the control method is a control method of a crusher that crushes an object to be crushed, and at least the measured value of the physical quantity related to electricity input to the motor of the crusher is measured. The step of acquiring in a sampling cycle corresponding to the frequency of the power supply current of the motor, and the time series stored in the property storage unit that stores the time series of the physical quantity related to the electricity input to the motor according to the properties of the object to be crushed. It has a step of specifying the property of the object to be crushed based on the time series of the measured values, and a step of outputting a control signal to the crusher based on the specified property .
本発明の第１７の態様によれば、制御方法は、粉砕対象物を粉砕する粉砕機の制御方法であって、前記粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得するステップと、前記計測値の時系列の周波数解析により周波数スペクトルを特定するステップと、前記粉砕対象物の性状別に前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部が記憶する周波数スペクトルと、周波数解析により得られた周波数スペクトルとに基づいて、前記粉砕対象物の性状を特定するステップと、特定された前記性状に基づいて前記粉砕機に制御信号を出力するステップと、を有する。 According to the seventeenth aspect of the present invention, the control method is a control method of a crusher that crushes an object to be crushed, and at least the measured value of a physical quantity related to electricity input to the electric motor of the crusher is measured. It relates to the step of acquiring in the sampling cycle corresponding to the frequency of the power supply current of the electric machine, the step of specifying the frequency spectrum by the time-series frequency analysis of the measured value, and the electricity input to the electric machine according to the property of the object to be crushed. Based on the frequency spectrum stored in the property storage unit that stores the frequency spectrum of the physical quantity and the frequency spectrum obtained by the frequency analysis, the step of identifying the property of the crushed object and the specified property are used. It has a step of outputting a control signal to the crusher.
本発明の第１８の態様によれば、制御プログラムは、コンピュータに、粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得するステップと、粉砕対象物の性状別に前記電動機に入力される電気に係る物理量の時系列を記憶する性状記憶部が記憶する時系列と、取得された前記計測値の時系列とに基づいて、前記粉砕対象物の性状を特定するステップと、特定された前記性状に基づいて前記粉砕機に制御信号を出力するステップと、を実行させる。
本発明の第１９の態様によれば、制御プログラムは、コンピュータに、粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得するステップと、前記計測値の時系列の周波数解析により周波数スペクトルを特定するステップと、粉砕対象物の性状別に前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部が記憶する周波数スペクトルと、周波数解析により得られた周波数スペクトルとに基づいて、前記粉砕対象物の性状を特定するステップと、特定された前記性状に基づいて前記粉砕機に制御信号を出力するステップと、を実行させる。
According to the eighteenth aspect of the present invention, the control program acquires, to the computer, a measurement value of a physical quantity related to electricity input to the electric motor of the crusher at a sampling cycle corresponding to at least a frequency corresponding to the frequency of the power supply current of the electric motor. Based on the steps, the time series stored by the property storage unit that stores the time series of the physical quantity related to electricity input to the motor according to the properties of the object to be crushed, and the time series of the acquired measured values. A step of specifying the property of the object to be crushed and a step of outputting a control signal to the crusher based on the specified property are executed.
According to the nineteenth aspect of the present invention, the control program acquires to the computer a measurement value of a physical quantity related to electricity input to the electric motor of the crusher at a sampling cycle corresponding to at least a frequency corresponding to the frequency of the power supply current of the electric motor. A step, a step of specifying a frequency spectrum by time-series frequency analysis of the measured values, and a frequency stored by a property storage unit that stores a frequency spectrum of a physical quantity related to electricity input to the electric motor according to the property of the object to be crushed. A step of specifying the properties of the crushed object based on the spectrum and the frequency spectrum obtained by the frequency analysis, and a step of outputting a control signal to the crusher based on the identified properties are executed. Let me.
Claims (19)
前記粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数以上の周波数で取得する計測値取得部と、
前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の時系列を記憶する性状記憶部と、
前記性状記憶部が記憶する時系列と、取得された前記計測値の時系列とに基づいて、前記粉砕対象物の性状を特定する性状特定部と、
特定された前記性状に基づいて前記粉砕機に制御信号を出力する制御部と、
を備える制御装置。 A control device for a crusher that crushes an object to be crushed.
A measurement value acquisition unit that acquires a measured value of a physical quantity related to electricity input to the electric motor of the crusher at a frequency equal to or higher than the frequency of the power supply current of the electric motor.
A property storage unit that stores a time series of physical quantities related to electricity input to the motor according to the properties of the object to be crushed.
A property specifying unit that specifies the properties of the object to be crushed based on the time series stored by the property storage unit and the acquired time series of the measured values.
A control unit that outputs a control signal to the crusher based on the specified properties, and
A control device comprising.
前記粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数以上の周波数で取得する計測値取得部と、
前記計測値の時系列の周波数解析により周波数スペクトルを特定する周波数解析部と、
前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部と、
前記性状記憶部が記憶する周波数スペクトルと、周波数解析により得られた周波数スペクトルとに基づいて、前記粉砕対象物の性状を特定する性状特定部と、
特定された前記性状に基づいて前記粉砕機に制御信号を出力する制御部と
を備える制御装置。 A control device for a crusher that crushes an object to be crushed.
A measurement value acquisition unit that acquires a measured value of a physical quantity related to electricity input to the electric motor of the crusher at a frequency equal to or higher than the frequency of the power supply current of the electric motor.
A frequency analysis unit that identifies the frequency spectrum by time-series frequency analysis of the measured values ,
A property storage unit that stores a frequency spectrum of a physical quantity related to electricity input to the motor according to the properties of the object to be crushed.
A property specifying unit that specifies the properties of the object to be crushed based on the frequency spectrum stored in the property storage unit and the frequency spectrum obtained by frequency analysis .
With a control unit that outputs a control signal to the crusher based on the specified properties
A control device comprising.
をさらに備える請求項１または２に記載の制御装置。 The control device according to claim 1 or 2 , further comprising a property change determining unit that determines whether or not there is a change in the properties of the crushed object based on the time-series changes in the measured values.
前記性状記憶部が記憶する周波数スペクトルと周波数解析により得られた前記周波数スペクトルとの比較、または前記性状記憶部が記憶する時系列と取得された前記計測値の時系列との比較、の何れか一方に基づいて前記粉砕対象物の性状を特定する性状特定部と、
周波数解析により得られた前記周波数スペクトル、および取得された前記計測値の時系列、のうち前記性状の特定に用いられないものの経時的な変化に基づいて、前記粉砕対象物の性状の変化の有無を判定する性状変化判定部と
をさらに備える請求項３に記載の制御装置。 A property storage unit that stores at least one of a time series of physical quantities related to electricity input to the motor and a frequency spectrum of physical quantities related to electricity input to the motor according to the properties of the object to be crushed.
Either a comparison between the frequency spectrum stored in the property storage unit and the frequency spectrum obtained by frequency analysis, or a comparison between the time series stored in the property storage unit and the time series of the acquired measured values. A property specifying part that specifies the properties of the object to be crushed based on one side,
Presence or absence of changes in the properties of the object to be crushed based on changes over time in the frequency spectrum obtained by frequency analysis and the time series of the acquired measured values that are not used to identify the properties. The control device according to claim 3 , further comprising a property change determination unit for determining.
請求項１に記載の制御装置。 The property specifying unit identifies the property based on the accumulation of deviations between the latest time series of the measured values and the time series of the past measured values.
The control device according to claim 1.
前記性状変化判定部は、周波数解析により得られた周波数スペクトルと、前記性状記憶部が記憶する性状別の前記周波数スペクトルそれぞれとのパターンマッチングにより、前記粉砕対象物の性状の変化の有無を判定する
請求項３に記載の制御装置。 A property storage unit for storing a frequency spectrum of a physical quantity related to electricity input to the motor is provided for each property of the object to be crushed.
The property change determination unit determines whether or not there is a change in the properties of the crushed object by pattern matching between the frequency spectrum obtained by the frequency analysis and the frequency spectrum for each property stored in the property storage unit. The control device according to claim 3.
特定された前記性状と前記補正パラメータ記憶部が記憶する情報とに基づいて、制御信号の補正量を特定する補正量特定部と、
をさらに備え、
前記制御部は、前記特定された補正量に基づいて補正された制御信号を、前記粉砕機に出力する
請求項１または請求項２に記載の制御装置。 A correction parameter storage unit that stores parameters related to correction of control signals according to the properties of the object to be crushed.
A correction amount specifying unit that specifies the correction amount of the control signal based on the specified properties and the information stored in the correction parameter storage unit, and
With more
The control device according to claim 1 or 2 , wherein the control unit outputs a control signal corrected based on the specified correction amount to the crusher.
前記性状特定部は、前記学習モデルによって前記粉砕対象物の性状を特定する
請求項１に記載の制御装置。 The property storage unit uses the combination of the time-series information of the physical quantity of electricity input to the electric motor and the properties of the object to be crushed as training data, and inputs the information related to the time-series as input to the crushing. Memorize the learning model trained to output the properties of the object,
The property specifying unit specifies the property of the crushed object by the learning model.
The control device according to claim 1.
前記性状変化判定部は、前記学習モデルによって前記粉砕対象物の性状の変化の有無を判定する
請求項４に記載の制御装置。 The property storage unit inputs information related to the time series using a combination of information related to the time series of physical quantities related to electricity input to the motor and the presence or absence of changes in the properties of the object to be crushed as training data. Then, a learning model trained to output the presence or absence of a change in the properties of the crushed object is stored.
The property change determination unit determines whether or not there is a change in the properties of the crushed object by the learning model.
The control device according to claim 4.
前記制御部は、前記複数の電動機のうち、前記第１の電動機より前記粉砕対象物の流れ方向の下流側に設けられる第２の電動機に、前記制御信号を出力する
請求項１または請求項２に記載の制御装置。 The measured value acquisition unit acquires a measured value of a physical quantity related to electricity input to the first motor among the plurality of motors included in the crusher.
Claim 1 or claim 2 in which the control unit outputs the control signal to a second motor provided on the downstream side of the first motor in the flow direction of the object to be crushed among the plurality of motors. The control device described in.
前記第２の電動機は、前記粉砕機のロータリセパレータを回転させる電動機である
請求項１０に記載の制御装置。 The first electric motor is an electric motor that rotates the table of the crusher.
The second electric motor is an electric motor that rotates the rotary separator of the crusher.
The control device according to claim 10.
前記電動機は、誘導電動機であって、
前記粉砕対象物は石炭およびバイオマスの少なくとも一方である
請求項１または請求項２に記載の制御装置。 The crusher is a fine crusher and
The electric motor is an induction motor and
The control device according to claim 1 or 2 , wherein the object to be crushed is at least one of coal and biomass.
前記粉砕機の電動機への入力電流の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得する計測値取得部と、
前記粉砕機に制御信号を出力する制御部と、
を備える制御装置と、
前記制御装置と遠隔に設けられ、前記計測値取得部が取得した前記計測値の時系列に基づいて、前記制御信号に係る計算を行う演算装置と
を備え、
前記演算装置は、
前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の時系列を記憶する性状記憶部と、
前記性状記憶部が記憶する時系列と、取得された前記計測値の時系列とに基づいて、前記粉砕対象物の性状を特定する性状特定部と、
特定された前記性状に基づいて前記粉砕機に制御信号を出力する制御部と、
を備える制御システム。 A control device for a crusher that crushes an object to be crushed.
A measurement value acquisition unit that acquires the measured value of the input current of the crusher to the motor at least in a sampling cycle corresponding to the frequency of the power supply current of the motor.
A control unit that outputs a control signal to the crusher,
With a control device
An arithmetic unit that is provided remotely from the control device and performs calculations related to the control signal based on the time series of the measured values acquired by the measured value acquisition unit.
Equipped with a,
The arithmetic unit
A property storage unit that stores a time series of physical quantities related to electricity input to the motor according to the properties of the object to be crushed.
A property specifying unit that specifies the properties of the object to be crushed based on the time series stored by the property storage unit and the acquired time series of the measured values.
A control unit that outputs a control signal to the crusher based on the specified properties, and
Control system Ru equipped with.
前記粉砕機の電動機への入力電流の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得する計測値取得部と、 A measurement value acquisition unit that acquires the measured value of the input current of the crusher to the motor at least in a sampling cycle corresponding to the frequency of the power supply current of the motor.
前記粉砕機に制御信号を出力する制御部と、 A control unit that outputs a control signal to the crusher,
を備える制御装置と、 With a control device
前記制御装置と遠隔に設けられ、前記計測値取得部が取得した前記計測値の時系列に基づいて、前記制御信号に係る計算を行う演算装置と An arithmetic unit that is provided remotely from the control device and performs calculations related to the control signal based on the time series of the measured values acquired by the measured value acquisition unit.
を備え、 With
前記演算装置は、 The arithmetic unit
前記計測値の時系列の周波数解析により周波数スペクトルを特定する周波数解析部と、 A frequency analysis unit that identifies the frequency spectrum by time-series frequency analysis of the measured values,
前記粉砕対象物の性状別に、前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部と、 A property storage unit that stores a frequency spectrum of a physical quantity related to electricity input to the motor according to the properties of the object to be crushed.
前記性状記憶部が記憶する周波数スペクトルと、周波数解析により得られた周波数スペクトルとに基づいて、前記粉砕対象物の性状を特定する性状特定部と、 A property specifying unit that specifies the properties of the object to be crushed based on the frequency spectrum stored in the property storage unit and the frequency spectrum obtained by frequency analysis.
特定された前記性状に基づいて前記粉砕機に制御信号を出力する制御部と With a control unit that outputs a control signal to the crusher based on the specified properties
を備える制御システム。 Control system with.
前記演算装置は、前記複数の制御装置が取得した前記計測値の時系列それぞれに基づいて、各制御装置における前記制御信号に係る計算を行う
請求項１３または請求項１４に記載の制御システム。 The control device is one of a plurality of control devices for controlling a plurality of crushers.
The arithmetic unit performs a calculation related to the control signal in each control device based on each time series of the measured values acquired by the plurality of control devices.
The control system according to claim 13 or 14.
前記粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得するステップと、
前記粉砕対象物の性状別に前記電動機に入力される電気に係る物理量の時系列を記憶する性状記憶部が記憶する時系列と、取得された前記計測値の時系列とに基づいて、前記粉砕対象物の性状を特定するステップと、
特定された前記性状に基づいて前記粉砕機に制御信号を出力するステップと、
を有する制御方法。 It is a control method of a crusher that crushes an object to be crushed.
A step of acquiring a measured value of a physical quantity related to electricity input to the motor of the crusher at least in a sampling cycle corresponding to the frequency of the power supply current of the motor.
Based on the time series stored by the property storage unit that stores the time series of the physical quantity related to electricity input to the motor for each property of the object to be crushed and the time series of the acquired measured values, the object to be crushed. Steps to identify the properties of things and
A step of outputting a control signal to the crusher based on the specified properties, and
Control method having.
前記粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得するステップと、 A step of acquiring a measured value of a physical quantity related to electricity input to the motor of the crusher at least in a sampling cycle corresponding to the frequency of the power supply current of the motor.
前記計測値の時系列の周波数解析により周波数スペクトルを特定するステップと、 Steps to identify the frequency spectrum by time-series frequency analysis of the measured values,
前記粉砕対象物の性状別に前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部が記憶する周波数スペクトルと、周波数解析により得られた周波数スペクトルとに基づいて、前記粉砕対象物の性状を特定するステップと、 Based on the frequency spectrum stored in the property storage unit that stores the frequency spectrum of the physical quantity related to electricity input to the motor according to the properties of the object to be crushed and the frequency spectrum obtained by frequency analysis, the object to be crushed. Steps to identify the properties of
特定された前記性状に基づいて前記粉砕機に制御信号を出力するステップと、 A step of outputting a control signal to the crusher based on the specified properties, and
を有する制御方法。 Control method having.
粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得するステップと、
粉砕対象物の性状別に前記電動機に入力される電気に係る物理量の時系列を記憶する性状記憶部が記憶する時系列と、取得された前記計測値の時系列とに基づいて、前記粉砕対象物の性状を特定するステップと、
特定された前記性状に基づいて前記粉砕機に制御信号を出力するステップと、
を実行させるための制御プログラム。 On the computer
A step of acquiring a measured value of a physical quantity related to electricity input to an electric motor of a crusher at a sampling cycle corresponding to at least a frequency corresponding to the frequency of the power supply current of the electric motor.
Based on the time series stored by the property storage unit that stores the time series of physical quantities related to electricity input to the motor for each property of the object to be crushed and the time series of the acquired measured values, the object to be crushed. Steps to identify the properties of
A step of outputting a control signal to the crusher based on the specified properties, and
A control program for executing.
粉砕機の電動機に入力される電気に係る物理量の計測値を、少なくとも前記電動機の電源電流の周波数相当のサンプリング周期で取得するステップと、
前記計測値の時系列の周波数解析により周波数スペクトルを特定するステップと、
粉砕対象物の性状別に前記電動機に入力される電気に係る物理量の周波数スペクトルを記憶する性状記憶部が記憶する周波数スペクトルと、周波数解析により得られた周波数スペクトルとに基づいて、前記粉砕対象物の性状を特定するステップと、
特定された前記性状に基づいて前記粉砕機に制御信号を出力するステップと、
を実行させるための制御プログラム。 On the computer
A step of acquiring a measured value of a physical quantity related to electricity input to an electric motor of a crusher at a sampling cycle corresponding to at least a frequency corresponding to the frequency of the power supply current of the electric motor.
Steps to identify the frequency spectrum by time-series frequency analysis of the measured values,
Based on the frequency spectrum stored in the property storage unit that stores the frequency spectrum of the physical quantity related to electricity input to the motor according to the properties of the object to be crushed and the frequency spectrum obtained by frequency analysis, the object to be crushed. Steps to identify properties and
A step of outputting a control signal to the crusher based on the specified properties, and
A control program for executing.
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| JP4782218B2 (en) * | 2009-06-10 | 2011-09-28 | 新日本製鐵株式会社 | Equipment abnormality diagnosis method |
| JP6190841B2 (en) * | 2015-04-02 | 2017-08-30 | 三菱電機株式会社 | Diagnostic equipment for electric motors |
| JP6518001B2 (en) * | 2016-03-08 | 2019-05-22 | 株式会社日立製作所 | Diagnostic apparatus and method for rotating machine |
| JP6722042B2 (en) * | 2016-05-23 | 2020-07-15 | クボタ環境サ−ビス株式会社 | Crusher remote monitoring system, crusher monitoring device, crusher management server, and terminal device |
| CN107442262B (en) * | 2017-08-04 | 2019-04-26 | 东北大学 | A kind of the powder granularity DCU distribution control unit and method of mill system |
-
2018
- 2018-06-07 JP JP2018109827A patent/JP7457452B2/en active Active
-
2019
- 2019-06-06 TW TW108119780A patent/TWI764003B/en active
- 2019-06-07 WO PCT/JP2019/022671 patent/WO2019235604A1/en active Application Filing
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2020
- 2020-12-04 PH PH12020552104A patent/PH12020552104A1/en unknown
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