CN115055273B - Intelligent control method and device for pulverizing system under full-working-condition wide load - Google Patents
Intelligent control method and device for pulverizing system under full-working-condition wide load Download PDFInfo
- Publication number
- CN115055273B CN115055273B CN202210567626.5A CN202210567626A CN115055273B CN 115055273 B CN115055273 B CN 115055273B CN 202210567626 A CN202210567626 A CN 202210567626A CN 115055273 B CN115055273 B CN 115055273B
- Authority
- CN
- China
- Prior art keywords
- coal
- stop
- coal mill
- mill
- mills
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010298 pulverizing process Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000003245 coal Substances 0.000 claims abstract description 255
- 238000011156 evaluation Methods 0.000 claims abstract description 30
- 238000012163 sequencing technique Methods 0.000 claims abstract description 7
- 238000004590 computer program Methods 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000872 buffer Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 240000004282 Grewia occidentalis Species 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The application provides an intelligent control method and device for a pulverizing system under full-working-condition wide load, wherein the method comprises the following steps: acquiring equipment information of each coal mill in the pulverizing system, and respectively assigning values to each coal mill according to the equipment information to acquire basic scores of each coal mill; respectively collecting equipment states of all coal mills in a coal pulverizing system, adjusting basic scores of corresponding coal mills according to the equipment states to obtain evaluation scores of all the coal mills, and sequencing priorities of all the coal mills according to the evaluation scores to obtain a start-stop sequence of the coal mills; and determining the start-stop demand type of the coal mill according to the running state of the pulverizing system, and controlling the corresponding coal mill to be started or stopped according to the start-stop demand type and the start-stop sequence of the coal mill.
Description
Technical Field
The application relates to the field of power supply control, in particular to an intelligent control method and device for a pulverizing system under full-working-condition wide load.
Background
With the increasing capacity of new energy sources such as wind power, photovoltaic and the like which are integrated into a power grid, the intermittence and randomness based on the new energy sources are strong, the power supply structure of the power grid is greatly changed, and the situation that the frequency disturbance amplitude and the frequency of the power grid are increased year by year can be found according to the statistical data of the power grid in a certain area. In order to reduce the frequency fluctuation, there are three regulation modes of primary frequency modulation, secondary frequency modulation and tertiary frequency modulation, but the essence of each mode is to change the load of the existing unit so as to keep the power grid at 50HZ. As the supply equipment of the fuel of the thermal power plant, when the load of the unit changes, the pulverizing system can be correspondingly changed, and the more the load changes frequently, the more the output change of the pulverizing system is severe, so that the operation of the pulverizing system by power plant operators is greatly increased.
In the prior art, a power plant technician adjusts the start-stop of a coal mill of a coal pulverizing system and the change condition of the coal supply amount in real time according to the change condition of the load of a unit, the running state of the coal mill, the change condition of main parameters of the unit and the like; the manual adjustment by operators is frequent in operation and high in labor intensity. In addition, if a technician is under the condition of severe load change, misoperation is easy, and once the misoperation brings great threat to the running condition of the unit, the normal and safe running of the unit is affected.
Disclosure of Invention
The utility model aims to provide a powder process system intelligent control method and device under wide load of full operating mode, in order to strengthen the thermal power generating unit and resist the ability of high-power disturbance, fully excavate quick frequency modulation and transfer merit potential of unit, reduce operating personnel's intensity of labour, increase operating personnel to the operation accuracy of powder process system.
In order to achieve the above purpose, the intelligent control method for the pulverizing system under full-working-condition wide load provided by the application specifically comprises the following steps: acquiring equipment information of each coal mill in the pulverizing system, and respectively assigning values to each coal mill according to the equipment information to acquire basic scores of each coal mill; respectively collecting equipment states of all coal mills in a coal pulverizing system, adjusting basic scores of corresponding coal mills according to the equipment states to obtain evaluation scores of all the coal mills, and sequencing priorities of all the coal mills according to the evaluation scores to obtain a start-stop sequence of the coal mills; and determining the start-stop demand type of the coal mill according to the running state of the pulverizing system, and controlling the corresponding coal mill to be started or stopped according to the start-stop demand type and the start-stop sequence of the coal mill.
In the intelligent control method of the coal pulverizing system under the full-working-condition wide load, optionally, the coal pulverizer start-stop demand type comprises the step of determining that the coal pulverizer start-stop demand type is a lifting load start-stop type, a fault start-stop type and a rotation start-stop type according to the running state of the coal pulverizing system.
In the above intelligent control method for the pulverizing system under the wide load of full working condition, optionally, controlling the corresponding coal pulverizer to be started or shut down according to the start-stop demand type and the start-stop sequence of the coal pulverizer comprises: when the start-stop demand type is a lifting load start-stop type and the coal mill needs to be started, the starting condition of the priority first coal mill is adjusted according to the start-stop sequence of the coal mill; and when the starting conditions meet preset starting standards, starting the corresponding coal mill.
In the above intelligent control method for the pulverizing system under the wide load of full working condition, optionally, the starting condition of the first priority coal pulverizer according to the starting and stopping sequence of the coal pulverizer further comprises: when the evaluation scores of at least two coal mills in the start-stop sequence of the coal mills are the same and are all in the first priority, acquiring the stop time length of the corresponding coal mill for comparison; and according to the comparison result of the off-stream time, the starting condition of the priority first coal mill is adjusted.
In the above intelligent control method for the pulverizing system under the wide load of full working condition, optionally, controlling the corresponding coal pulverizer to be started or shut down according to the start-stop demand type and the start-stop sequence of the coal pulverizer comprises: detecting logic action of the coal mill when the start-stop demand type is a fault start-stop type and the fault cause is sudden trip; and when the logic of the coal mill does not have the preset normal action, starting the priority first coal mill according to the start-stop sequence of the coal mill.
In the intelligent control method of the pulverizing system under the full-working-condition wide load, optionally, when the start-stop demand type is a fault start-stop type and the load is stable, detecting the evaluation score of the coal mill according to the start-stop sequence of the coal mill; when the evaluation value is lower than a preset threshold value, gradually reducing the coal feeding amount of the corresponding coal mill to a preset minimum coal feeding amount according to a preset period; and starting the coal mill with the first priority according to the start-stop sequence of the coal mill, and replacing the coal mill with the evaluation score lower than a preset threshold value.
In the above intelligent control method for the pulverizing system under the wide load of full working condition, optionally, controlling the corresponding coal pulverizer to be started or shut down according to the start-stop demand type and the start-stop sequence of the coal pulverizer comprises: when the start-stop demand type is a rotation start-stop type, sequentially and circularly stopping the corresponding coal mills from the last position to the first position according to the start-stop sequence of the coal mills; and when the evaluation scores of the at least two coal mills are the same, acquiring the shutdown time of the corresponding coal mills, comparing, and turning the coal mills with longer shutdown time according to the shutdown time comparison result.
The application also provides an intelligent control device of the pulverizing system under full-working-condition wide load, which comprises an assignment module, an adjustment module and a control module; the assignment module is used for obtaining equipment information of each coal mill in the coal pulverizing system, and assigning values to each coal mill according to the equipment information to obtain basic scores of each coal mill; the adjusting module is used for respectively collecting the equipment states of all the coal mills in the coal pulverizing system, adjusting the basic scores of the corresponding coal mills according to the equipment states to obtain the evaluation scores of all the coal mills, and sequencing the priorities of all the coal mills according to the evaluation scores to obtain the start-stop sequences of the coal mills; the control module is used for determining the start-stop demand type of the coal mill according to the running state of the powder making system, and controlling the corresponding coal mill to be started or stopped according to the start-stop demand type and the start-stop sequence of the coal mill.
The application also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the above method when executing the computer program.
The present application also provides a computer readable storage medium storing a computer program for executing the above method.
The beneficial technical effects of this application lie in: the intelligent control under the full working condition and wide load environment is realized by comprehensively considering the running state of each coal mill and the temperature and load fluctuation condition of main steam, so that the operation steps of operators are reduced. The start and stop of the coal mill of the powder making system are intelligently controlled, so that the labor intensity of related technicians can be reduced, the error rate of manual operation of operators is reduced, and the safety of a test is improved; the stability of main parameters of the unit, such as main steam pressure, can be increased, and the unit is beneficial to adapt to frequent fluctuation under wide load.
Drawings
The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application. In the drawings:
FIG. 1 is a schematic flow chart of an intelligent control method of a pulverizing system under full-working-condition wide load according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a pulverizing system under full-working-range wide load according to an embodiment of the present disclosure;
FIG. 3 is a schematic flow chart of a lift load start-stop process according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart of a lift load start-stop process according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram illustrating logic determination of start and stop of a lifting load according to an embodiment of the present disclosure;
FIG. 6 is a schematic flow chart of a fail start-stop according to an embodiment of the present disclosure;
FIG. 7 is a schematic flow chart of a fail start-stop according to an embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of an intelligent control device of a pulverizing system under full-working-condition wide load according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following will describe embodiments of the present application in detail with reference to the drawings and examples, thereby how to apply technical means to the present application to solve technical problems, and realizing the technical effects can be fully understood and implemented accordingly. It should be noted that, as long as no conflict exists, each embodiment and each feature in each embodiment in the present application may be combined with each other, and the formed technical solutions are all within the protection scope of the present application.
Additionally, the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that herein.
Referring to fig. 1, the intelligent control method for the pulverizing system under full-working-condition wide load provided by the present application specifically includes:
s101, obtaining equipment information of each coal mill in a coal pulverizing system, and respectively assigning values to each coal mill according to the equipment information to obtain basic scores of each coal mill;
s102, respectively acquiring equipment states of all coal mills in a coal pulverizing system, adjusting basic scores of corresponding coal mills according to the equipment states to obtain evaluation scores of all the coal mills, and sequencing priorities of all the coal mills according to the evaluation scores to obtain a start-stop sequence of the coal mills;
s103, determining the start-stop demand type of the coal mill according to the running state of the coal pulverizing system, and controlling the corresponding coal mill to be started or stopped according to the start-stop demand type and the start-stop sequence of the coal mill.
The coal mill start-stop demand type comprises a lifting load start-stop type, a fault start-stop type and a rotation start-stop type which are determined according to the running state of the coal mill system.
Specifically, referring to fig. 2, taking a combustion layout diagram of a power plant as a four-corner tangential circle as an example, the pulverizing system of the power plant includes six coal mills, which are sequenced from bottom to top to be a, B, C, D, E, F; the two layers of pulverizing systems with plasma combustion supporting are arranged between the B and the C coal mills, so that the operation of the two coal mills is guaranteed preferentially, and particularly, when the unit is in low load, the operation of the two coal mills is guaranteed at least under the condition of grid connection and load in order to ensure the stable operation of the unit pulverizing systems as much as possible. The start and stop of the coal mill are divided into three types, namely fault start and stop, rotation start and stop and lifting load start and stop. The fault start-stop is that the coal mill needs to be started in time when the operation is stopped due to sudden tripping during the operation; the alternate start and stop can be alternately started or stopped among the standby coal mills for the safety of equipment under the condition that the load is kept stable for a long time; the lifting load start-stop refers to the start-stop operation of a unit according to the load of each power plant along with the change of the load requirement of the central regulation. According to the three modes, the start and stop of the coal mill are intelligently controlled respectively, so that the labor intensity of operators is reduced, and the running stability of the unit is ensured. In actual work, the basic scores of the A, B, C, D, E and F coal mills can be assigned to 10, 20, 10 and 10 in sequence in the DCS system (the scores can be changed according to specific unit conditions). On the basis of the score, the equipment state of the unit coal mill is considered to increase or decrease the score of six coal mills to obtain an evaluation score, and when the start-stop condition is met, the coal mill with high score is started preferentially; when it is desired to stop the coal mill, the coal mill with the lower score is preferably stopped, wherein the equipment status contains parameter information as shown in the following table 1.
TABLE 1
Referring to fig. 3, in an embodiment of the present application, controlling the corresponding coal mill to be turned on or turned off according to the start-stop requirement type and the coal mill start-stop sequence includes:
s301, when the start-stop demand type is a lifting load start-stop type and a coal mill needs to be started, starting conditions of a priority first coal mill are adjusted according to the start-stop sequence of the coal mill;
and S302, when the starting condition meets a preset starting standard, starting the corresponding coal mill.
Further, referring to fig. 4, the starting conditions for the first coal mill according to the start-stop sequence of the coal mill further include:
s401, when at least two coal mills exist in the start-stop sequence of the coal mills, the evaluation scores of the at least two coal mills are the same and are all in the first priority, acquiring the stop time length of the corresponding coal mill and comparing the stop time length;
s402, according to the comparison result of the off-stream time length, the starting condition of the priority first coal mill is called.
Specifically, in actual operation, the respective score conditions of each coal mill can be calculated in real time according to the above table 1, when the scores of the two coal mills are the same and the priorities are the same, the shutdown time of the coal mills is compared, and the long coal mill with the shutdown time or the coal mill with the long shutdown time is preferentially started. In addition, when the mill is already in operation or in a stopped state, the mill does not participate in score comparison, i.e., is not considered as a backup mill, and the specific logic diagram is shown with reference to FIG. 5.
Referring to fig. 6, in an embodiment of the present application, controlling the corresponding coal mill to be turned on or turned off according to the start-stop demand type and the coal mill start-stop sequence includes:
s601, detecting logic action of the coal mill when the start-stop demand type is a fault start-stop type and the fault cause is sudden trip;
and S602, when the logic of the coal mill does not have preset normal actions, starting the priority first coal mill according to the start-stop sequence of the coal mill.
Referring to fig. 7 again, in another embodiment, controlling the corresponding coal mill to be turned on or off according to the start-stop demand type and the coal mill start-stop sequence includes:
s701, detecting the evaluation score of the coal mill according to the start-stop sequence of the coal mill when the start-stop demand type is a fault start-stop type and the load is stable;
s702, gradually reducing the coal feeding amount of the corresponding coal mill to a preset minimum coal feeding amount according to a preset period when the evaluation value is lower than a preset threshold value;
s703, starting the coal mill with the first priority coal mill replacement evaluation score lower than a preset threshold according to the start-stop sequence of the coal mills.
In actual work, the types of fault start and stop are two, specifically, when a unit is in normal operation, in the first case, if tripping occurs and the grinding RB logic normal action is triggered, the coal mill with high priority can not be started; if mill RB logic is not operating properly, we can interlock to start the backup mill. And secondly, if the score of a running coal mill is lower than 5 minutes under the condition of stable load, the standby coal mill is started in an interlocking way. If the coal mill score is lower than 5 minutes, automatically reducing the coal feeding amount of the coal mill, simultaneously increasing the coal feeding amount of other coal mills, starting the standby coal mill when the coal feeding amount of the coal mill is reduced to the minimum coal feeding amount, and then eliminating the coal feeding amount of the standby coal mill in a paranoid way. And finally, the coal mill with lower original score is stopped in an interlocking way, namely, the coal mill is started and then stopped.
In an embodiment of the present application, controlling the corresponding coal mill to be turned on or off according to the start-stop demand type and the coal mill start-stop sequence includes: when the start-stop demand type is a rotation start-stop type, sequentially and circularly stopping the corresponding coal mills from the last position to the first position according to the start-stop sequence of the coal mills; and when the evaluation scores of the at least two coal mills are the same, acquiring the shutdown time of the corresponding coal mills, comparing, and turning the coal mills with longer shutdown time according to the shutdown time comparison result. Specifically, in actual operation, the start-stop flow under the requirement of the alternate start-stop type is mainly as follows: when the load of the unit is stable, the start and stop buttons of the coal mill can be allowed to be put into rotation, after the operator inputs the start and stop buttons of the coal mill in rotation, the coal mill with the lowest score starts to count time, and when the cycle time of rotation is up, the start and stop are performed firstly according to the second condition in the mode of starting and stopping the coal mill in fault. If the coal mills have the same score and are the lowest score, the operation time of the coal mills is compared, and the coal mills with long operation time are preferentially rotated.
Referring to fig. 8, the present application further provides an intelligent control device for a pulverizing system under full-working-condition wide load, where the device includes an assignment module, an adjustment module, and a control module; the assignment module is used for obtaining equipment information of each coal mill in the coal pulverizing system, and assigning values to each coal mill according to the equipment information to obtain basic scores of each coal mill; the adjusting module is used for respectively collecting the equipment states of all the coal mills in the coal pulverizing system, adjusting the basic scores of the corresponding coal mills according to the equipment states to obtain the evaluation scores of all the coal mills, and sequencing the priorities of all the coal mills according to the evaluation scores to obtain the start-stop sequences of the coal mills; the control module is used for determining the start-stop demand type of the coal mill according to the running state of the powder making system, and controlling the corresponding coal mill to be started or stopped according to the start-stop demand type and the start-stop sequence of the coal mill. In practical applications, the specific implementation logic and implementation manner of each component are similarly exemplified in the foregoing embodiments, and will not be described in detail herein.
The beneficial technical effects of this application lie in: the intelligent control under the full working condition and wide load environment is realized by comprehensively considering the running state of each coal mill and the temperature and load fluctuation condition of main steam, so that the operation steps of operators are reduced. The start and stop of the coal mill of the powder making system are intelligently controlled, so that the labor intensity of related technicians can be reduced, the error rate of manual operation of operators is reduced, and the safety of a test is improved; the stability of main parameters of the unit, such as main steam pressure, can be increased, and the unit is beneficial to adapt to frequent fluctuation under wide load.
The application also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the above method when executing the computer program.
The present application also provides a computer readable storage medium storing a computer program for executing the above method.
As shown in fig. 9, the electronic device 600 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a display 160, a power supply 170. It is noted that the electronic device 600 need not include all of the components shown in fig. 9; in addition, the electronic device 600 may further include components not shown in fig. 9, to which reference is made to the related art.
As shown in fig. 9, the central processor 100, sometimes also referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device, which central processor 100 receives inputs and controls the operation of the various components of the electronic device 600.
The memory 140 may be, for example, one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, or other suitable device. The information about failure may be stored, and a program for executing the information may be stored. And the central processor 100 can execute the program stored in the memory 140 to realize information storage or processing, etc.
The input unit 120 provides an input to the central processor 100. The input unit 120 is, for example, a key or a touch input device. The power supply 170 is used to provide power to the electronic device 600. The display 160 is used for displaying display objects such as images and characters. The display may be, for example, but not limited to, an LCD display.
The memory 140 may be a solid state memory such as Read Only Memory (ROM), random Access Memory (RAM), SIM card, or the like. But also a memory which holds information even when powered down, can be selectively erased and provided with further data, an example of which is sometimes referred to as EPROM or the like. Memory 140 may also be some other type of device. Memory 140 includes a buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application/function storage 142, the application/function storage 142 for storing application programs and function programs or a flow for executing operations of the electronic device 600 by the central processor 100.
The memory 140 may also include a data store 143, the data store 143 for storing data, such as contacts, digital data, pictures, sounds, and/or any other data used by the electronic device. The driver storage 144 of the memory 140 may include various drivers of the electronic device for communication functions and/or for performing other functions of the electronic device (e.g., messaging applications, address book applications, etc.).
The communication module 110 is a transmitter/receiver 110 that transmits and receives signals via an antenna 111. A communication module (transmitter/receiver) 110 is coupled to the central processor 100 to provide an input signal and receive an output signal, which may be the same as in the case of a conventional mobile communication terminal.
Based on different communication technologies, a plurality of communication modules 110, such as a cellular network module, a bluetooth module, and/or a wireless local area network module, etc., may be provided in the same electronic device. The communication module (transmitter/receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide audio output via the speaker 131 and to receive audio input from the microphone 132 to implement usual telecommunication functions. The audio processor 130 may include any suitable buffers, decoders, amplifiers and so forth. In addition, the audio processor 130 is also coupled to the central processor 100 so that sound can be recorded locally through the microphone 132 and so that sound stored locally can be played through the speaker 131.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present application and are not meant to limit the scope of the invention, but to limit the scope of the invention.
Claims (10)
1. An intelligent control method of a pulverizing system under full-working-condition wide load is characterized by comprising the following steps:
acquiring equipment information of each coal mill in the pulverizing system, and respectively assigning values to each coal mill according to the equipment information to acquire basic scores of each coal mill;
respectively collecting equipment states of all coal mills in a coal pulverizing system, adjusting basic scores of corresponding coal mills according to the equipment states to obtain evaluation scores of all the coal mills, and sequencing priorities of all the coal mills according to the evaluation scores to obtain a start-stop sequence of the coal mills;
determining the start-stop demand type of the coal mill according to the running state of the pulverizing system, and controlling the corresponding coal mill to be started or stopped according to the start-stop demand type and the start-stop sequence of the coal mill;
the equipment state comprises an adjacent coal mill running state, a unit NOX content state, a main steam temperature state, a coal mill inlet primary air quantity state, a mill separator outlet temperature state, and a coal mill motor bearing, an iron core, a coil and a thrust tile temperature state.
2. The intelligent control method of the coal pulverizing system under the full-working-condition wide load according to claim 1, wherein the coal pulverizer start-stop demand type comprises the step of determining that the coal pulverizer start-stop demand type is a lifting load start-stop type, a fault start-stop type and a rotation start-stop type according to the running state of the coal pulverizing system.
3. The intelligent control method of a pulverizing system under full-condition wide load according to claim 2, wherein controlling the corresponding coal pulverizer to be turned on or off according to the start-stop demand type and the start-stop sequence of the coal pulverizer comprises:
when the start-stop demand type is a lifting load start-stop type and the coal mill needs to be started, the starting condition of the priority first coal mill is adjusted according to the start-stop sequence of the coal mill;
and when the starting conditions meet preset starting standards, starting the corresponding coal mill.
4. The intelligent control method for a pulverizing system under full-condition wide load according to claim 3, wherein the starting conditions for the first priority pulverizer according to the starting and stopping sequence of the pulverizer further comprise:
when the evaluation scores of at least two coal mills in the start-stop sequence of the coal mills are the same and are all in the first priority, acquiring the stop time length of the corresponding coal mill for comparison;
and according to the comparison result of the off-stream time, the starting condition of the priority first coal mill is adjusted.
5. The intelligent control method of a pulverizing system under full-condition wide load according to claim 2, wherein controlling the corresponding coal pulverizer to be turned on or off according to the start-stop demand type and the start-stop sequence of the coal pulverizer comprises:
detecting logic action of the coal mill when the start-stop demand type is a fault start-stop type and the fault cause is sudden trip;
and when the logic of the coal mill does not have the preset normal action, starting the priority first coal mill according to the start-stop sequence of the coal mill.
6. The intelligent control method for the pulverizing system under full-condition wide load according to claim 2, wherein the starting condition of the first priority pulverizer according to the starting and stopping sequence of the pulverizer further comprises:
when the start-stop demand type is a fault start-stop type and the load is stable, detecting an evaluation score of the coal mill according to the start-stop sequence of the coal mill;
when the evaluation value is lower than a preset threshold value, gradually reducing the coal feeding amount of the corresponding coal mill to a preset minimum coal feeding amount according to a preset period;
and starting the coal mill with the first priority according to the start-stop sequence of the coal mill, and replacing the coal mill with the evaluation score lower than a preset threshold value.
7. The intelligent control method of a pulverizing system under full-condition wide load according to claim 2, wherein controlling the corresponding coal pulverizer to be turned on or off according to the start-stop demand type and the start-stop sequence of the coal pulverizer comprises:
when the start-stop demand type is a rotation start-stop type, sequentially and circularly stopping the corresponding coal mills from the last position to the first position according to the start-stop sequence of the coal mills;
and when the evaluation scores of the at least two coal mills are the same, acquiring the shutdown time of the corresponding coal mills, comparing, and turning the coal mills with longer shutdown time according to the shutdown time comparison result.
8. An intelligent control device of a pulverizing system under full-working-condition wide load is characterized by comprising an assignment module, an adjustment module and a control module;
the assignment module is used for obtaining equipment information of each coal mill in the coal pulverizing system, and assigning values to each coal mill according to the equipment information to obtain basic scores of each coal mill;
the adjusting module is used for respectively collecting the equipment states of all the coal mills in the coal pulverizing system, adjusting the basic scores of the corresponding coal mills according to the equipment states to obtain the evaluation scores of all the coal mills, and sequencing the priorities of all the coal mills according to the evaluation scores to obtain the start-stop sequences of the coal mills;
the control module is used for determining the start-stop demand type of the coal mill according to the running state of the powder making system, and controlling the corresponding coal mill to be started or stopped according to the start-stop demand type and the start-stop sequence of the coal mill; the equipment state comprises an adjacent coal mill running state, a unit NOX content state, a main steam temperature state, a coal mill inlet primary air quantity state, a mill separator outlet temperature state, and a coal mill motor bearing, an iron core, a coil and a thrust tile temperature state.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1 to 7 when executing the computer program.
10. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program for executing the method of any one of claims 1 to 7 by a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210567626.5A CN115055273B (en) | 2022-05-24 | 2022-05-24 | Intelligent control method and device for pulverizing system under full-working-condition wide load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210567626.5A CN115055273B (en) | 2022-05-24 | 2022-05-24 | Intelligent control method and device for pulverizing system under full-working-condition wide load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115055273A CN115055273A (en) | 2022-09-16 |
| CN115055273B true CN115055273B (en) | 2024-03-29 |
Family
ID=83198973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210567626.5A Active CN115055273B (en) | 2022-05-24 | 2022-05-24 | Intelligent control method and device for pulverizing system under full-working-condition wide load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115055273B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63196687A (en) * | 1987-02-09 | 1988-08-15 | Ube Ind Ltd | Production of solid fuel-water slurry |
| CN101334666A (en) * | 2008-07-15 | 2008-12-31 | 西安艾贝尔科技发展有限公司 | Double-inlet double-outlet steel ball coal mill straight blowing type milling system optimized control method |
| CN103097969A (en) * | 2010-03-24 | 2013-05-08 | Abb研究有限公司 | Computer-based method and device for automatically providing control parameters for a plurality of coal mills supplying coal powder to a plant |
| CN108483962A (en) * | 2018-04-04 | 2018-09-04 | 洛阳大华智能科技有限公司 | A kind of aggregate production of intelligent control system and method |
| CN108672025A (en) * | 2018-06-28 | 2018-10-19 | 东北大学 | A kind of multi-state optimal decoupling control method of steel ball coal-grinding pulverized coal preparation system |
| CN111389575A (en) * | 2020-03-09 | 2020-07-10 | 京东城市(北京)数字科技有限公司 | Coal mill combined operation control method, device, equipment and storage medium |
| CN112871429A (en) * | 2021-02-02 | 2021-06-01 | 浙江浙能技术研究院有限公司 | Rare earth motor control method of coal mill |
| CN113048500A (en) * | 2021-02-25 | 2021-06-29 | 华北电力科学研究院有限责任公司 | Starting device and method for powder grinding system of fan mill |
| CN113385293A (en) * | 2021-05-19 | 2021-09-14 | 北京京能电力股份有限公司 | Method and device for controlling coal mill of four-corner tangential boiler and storage medium |
| CN113843039A (en) * | 2021-07-21 | 2021-12-28 | 国能信控互联技术有限公司 | Coal mill startup and shutdown intelligent operation optimization method based on artificial intelligence |
-
2022
- 2022-05-24 CN CN202210567626.5A patent/CN115055273B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63196687A (en) * | 1987-02-09 | 1988-08-15 | Ube Ind Ltd | Production of solid fuel-water slurry |
| CN101334666A (en) * | 2008-07-15 | 2008-12-31 | 西安艾贝尔科技发展有限公司 | Double-inlet double-outlet steel ball coal mill straight blowing type milling system optimized control method |
| CN103097969A (en) * | 2010-03-24 | 2013-05-08 | Abb研究有限公司 | Computer-based method and device for automatically providing control parameters for a plurality of coal mills supplying coal powder to a plant |
| CN108483962A (en) * | 2018-04-04 | 2018-09-04 | 洛阳大华智能科技有限公司 | A kind of aggregate production of intelligent control system and method |
| CN108672025A (en) * | 2018-06-28 | 2018-10-19 | 东北大学 | A kind of multi-state optimal decoupling control method of steel ball coal-grinding pulverized coal preparation system |
| CN111389575A (en) * | 2020-03-09 | 2020-07-10 | 京东城市(北京)数字科技有限公司 | Coal mill combined operation control method, device, equipment and storage medium |
| CN112871429A (en) * | 2021-02-02 | 2021-06-01 | 浙江浙能技术研究院有限公司 | Rare earth motor control method of coal mill |
| CN113048500A (en) * | 2021-02-25 | 2021-06-29 | 华北电力科学研究院有限责任公司 | Starting device and method for powder grinding system of fan mill |
| CN113385293A (en) * | 2021-05-19 | 2021-09-14 | 北京京能电力股份有限公司 | Method and device for controlling coal mill of four-corner tangential boiler and storage medium |
| CN113843039A (en) * | 2021-07-21 | 2021-12-28 | 国能信控互联技术有限公司 | Coal mill startup and shutdown intelligent operation optimization method based on artificial intelligence |
Non-Patent Citations (3)
| Title |
|---|
| 制粉系统全过程自动化控制;顾良翠!130031, 吴超宇;吉林电力(02);25-27 * |
| 火力发电厂辅助设备可靠性指标评价体系研究;白翎;中国电力;20170930;第50卷(第9期);148-154 * |
| 顾良翠!130031,吴超宇.制粉系统全过程自动化控制.吉林电力.1999,(02),25-27. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115055273A (en) | 2022-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110445198B (en) | Power grid primary frequency modulation control method and system based on energy storage battery | |
| US20170234250A1 (en) | System and Method for Engergy Management Using Linear Programming | |
| CN106196783B (en) | Control method and control device of module unit and module unit | |
| CN111725879B (en) | Light-storage combined power supply mobile energy storage system and control method thereof | |
| JP2007006595A (en) | Operation method of private power generator set with power storage means | |
| CN106609754A (en) | Screw rod air compressor frequency conversion control system | |
| CN115055273B (en) | Intelligent control method and device for pulverizing system under full-working-condition wide load | |
| CN103270663B (en) | Management of power use device and management of power use method | |
| CN105703375A (en) | Third defense line configuration method adaptive to scale of isolated power grid | |
| CN111275289B (en) | Consistency checking method and device for main scheduling system and standby scheduling system | |
| CN113241777A (en) | Mobile energy storage system-based transformer area power stabilizing method and device | |
| CN101847890B (en) | Control method for enhancing adaptability of communication power supply to single-phase alternating-current power grid | |
| JP6987292B1 (en) | Charge / discharge control device, charge / discharge control program | |
| KR20100134409A (en) | Interlocked control method for a plurality of turbo air compressors | |
| CN201349134Y (en) | Gapless automatic switching system of generator group back-up power | |
| CN111327058B (en) | Method and device for setting dead zone of direct current reactive power control based on transient steady-state voltage constraint | |
| CN107991913B (en) | Control method and system for optimizing seawater desalination energy | |
| WO2013026082A1 (en) | A power management system and method for optimizing fuel consumption | |
| CN116441018A (en) | Grinding set start-stop control decision method and device of powder manufacturing system and electronic equipment | |
| CN109217321A (en) | A kind of high-power miss fault load group of power grid participates in frequency modulation method and device | |
| CN114336740B (en) | Group adjusting system and method for isolated network operation of hydropower station unit | |
| JP6779403B1 (en) | Controls, private power generation systems, and control programs | |
| CN116753047A (en) | Load shedding method and device for unit under working condition without external steam supply | |
| CN114069690A (en) | Power supply system of energy router and control method | |
| JP6625254B1 (en) | Wide Area Autonomous Blackout Avoidance Control System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |