CN115055273A - 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
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- CN115055273A CN115055273A CN202210567626.5A CN202210567626A CN115055273A CN 115055273 A CN115055273 A CN 115055273A CN 202210567626 A CN202210567626 A CN 202210567626A CN 115055273 A CN115055273 A CN 115055273A
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- 238000010298 pulverizing process Methods 0.000 title claims abstract description 59
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- 239000003245 coal Substances 0.000 claims abstract description 285
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- 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
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- 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
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- 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
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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: 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 a basic score of each coal mill; respectively acquiring the equipment state of each coal mill in a coal pulverizing system, adjusting the basic value of the corresponding coal mill according to the equipment state to obtain the evaluation value of each coal mill, and performing priority ranking on each coal mill according to the evaluation value to obtain the start-stop sequence of the coal mill; determining the coal mill start-stop requirement type according to the operation state of the coal pulverizing system, and controlling the corresponding coal mill to start or stop according to the start-stop requirement type and the coal mill start-stop sequence.
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 and photovoltaic energy which are merged into a power grid, the power structure of the power grid is changed greatly based on the high intermittency and randomness of the new energy sources, and the power grid frequency disturbance amplitude and frequency can be found to increase year by year according to the statistical data of the power grid in a certain area. In order to reduce frequency fluctuation, three adjusting modes of primary frequency modulation, secondary frequency modulation and tertiary frequency modulation are available, but the essence of each mode is to change the load of the existing unit and keep the power grid at 50 HZ. As a fuel supply device of a thermal power plant, when the load of a unit changes, a pulverizing system can make corresponding changes, and the more frequent the load changes, the more violent the output change of the pulverizing system is, so that the operation of the pulverizing system by the operating personnel of the power plant can be greatly increased.
In the prior art, a power plant technician adjusts the starting and stopping of a coal mill of a coal pulverizing system and the change of coal feeding quantity in real time according to the change of unit load, the running state of the coal mill, the change of main parameters of the unit and the like; and if the manual adjustment is carried out by operators, the operation is frequent and the labor intensity is high. Besides, if technicians are under the condition of severe load change, misoperation is easy to occur, once misoperation occurs, great threat is brought to the operation condition of the unit, and the normal and safe operation of the unit is influenced.
Disclosure of Invention
The application aims to provide an intelligent control method and device for a pulverizing system under full-working-condition wide load, in order to enhance the capacity of a thermal power generating unit for resisting high-power disturbance, the rapid frequency modulation and power regulation potential of the unit is fully developed, the labor intensity of operators is reduced, and the operation correctness of the operators on the pulverizing system is improved.
In order to achieve the above object, the intelligent control method for a pulverizing system under full-operating-condition and wide-load provided by the present application specifically comprises: 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 a basic score of each coal mill; respectively acquiring the equipment state of each coal mill in a coal pulverizing system, adjusting the basic score of the corresponding coal mill according to the equipment state to obtain the evaluation score of each coal mill, and performing priority ranking on each coal mill according to the evaluation score to obtain the start-stop sequence of the coal mill; determining the coal mill start-stop requirement type according to the operation state of the coal pulverizing system, and controlling the corresponding coal mill to start or stop according to the start-stop requirement type and the coal mill start-stop sequence.
In the above intelligent control method for the coal pulverizing system under the full-operating-condition wide load, optionally, the coal pulverizer start-stop demand type includes determining the coal pulverizer start-stop demand type as a lifting load start-stop type, a fault start-stop type and a rotation start-stop type according to the operating state of the coal pulverizing system.
In the above intelligent control method for a coal pulverizing system under a full-operating-condition wide load, optionally, controlling the corresponding coal mill to be turned on or turned off according to the start-stop requirement type and the start-stop sequence of the coal mill comprises: when the start-stop requirement type is a lifting load start-stop type and the coal mill needs to be started, the start-up condition of the first-priority coal mill is adjusted according to the start-stop sequence of the coal mill; and when the starting condition meets a preset starting standard, starting the corresponding coal mill to operate.
In the above intelligent control method for a coal pulverizing system under a full-operating-condition wide load, optionally, the step of calling the starting condition of the first priority coal mill according to the coal mill start-stop sequence further includes: when the evaluation scores of at least two coal mills are the same and are positioned at the first priority in the starting and stopping sequence of the coal mills, acquiring the outage durations of the corresponding coal mills for comparison; and calling the starting condition of the first coal mill of the priority according to the comparison result of the outage duration.
In the above intelligent control method for a coal pulverizing system under full-operating-condition wide-load, optionally, controlling the corresponding coal mills to start or stop according to the start-stop demand types and the start-stop sequence of the coal mills comprises: when the start-stop requirement type is a fault start-stop type and the fault reason is sudden tripping, detecting the logic action of the coal mill; and when the logic of the coal mill does not have the preset normal action, starting a first-priority coal mill according to the start-stop sequence of the coal mill.
In the intelligent control method for the coal pulverizing system under the full-working-condition wide load, optionally, when the start-stop requirement type is a fault start-stop type and the load is stable, the evaluation score of the coal mill is detected according to the start-stop sequence of the coal mill; when the evaluation score 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 to replace the coal mill with the evaluation score lower than the preset threshold value.
In the above intelligent control method for a coal pulverizing system under full-operating-condition wide-load, optionally, controlling the corresponding coal mills to start or stop according to the start-stop demand types and the start-stop sequence of the coal mills comprises: when the start-stop requirement type is a alternate start-stop type, sequentially stopping the corresponding coal mills from the last position to the first position according to the start-stop sequence of the coal mills; when the evaluation scores of at least two coal mills are the same, the shutdown time lengths of the corresponding coal mills are obtained for comparison, and the coal mill with longer shutdown time is turned over according to the comparison result of the shutdown time lengths.
The application also provides an intelligent control device of the pulverizing system under the 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 a basic score of each coal mill; the adjusting module is used for respectively acquiring the equipment states of 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 the coal mills, and performing priority ranking on the coal mills according to the evaluation scores to obtain the start-stop sequence of the coal mills; the control module is used for determining the starting and stopping requirement 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 starting and stopping requirement type and the starting and stopping sequence of the coal mill.
The application also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the method.
The present application also provides a computer-readable storage medium storing a computer program for executing the above method.
The beneficial technical effect of this application lies in: the running state of each coal mill and the change conditions of main steam temperature and load are comprehensively considered, and the intelligent control is carried out under the environment of full working condition and wide load, so that the operation steps of operators are reduced. The coal mill of the coal pulverizing system is intelligently controlled to start and stop, 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 the test is improved; the stability of main parameters of the unit, such as main steam pressure, can be improved, and the unit is favorable for adapting to frequent fluctuation under wide load.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this application, and are not intended to limit the application. In the drawings:
fig. 1 is a schematic flow chart of an intelligent control method for a pulverizing system under a full-operating-condition wide load according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a pulverizing system under a full-operating-condition wide load according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a start/stop of a lifting load according to an embodiment of the present disclosure;
fig. 4 is a schematic flow diagram of a start-stop of a lifting load according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating a logic determination of start and stop of a lifting load according to an embodiment of the present application;
fig. 6 is a schematic flow chart of a fault start/stop provided in an embodiment of the present application;
FIG. 7 is a flow chart illustrating a fault 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 a full-operating-condition wide load according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the application.
Detailed Description
The following detailed description will be provided with reference to the drawings and examples to explain how to apply the technical means to solve the technical problems and to achieve the technical effects. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments in the present application may be combined with each other, and the technical solutions formed are all within the scope of the present application.
Additionally, the steps illustrated in the flow charts 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 flow charts, in some cases, the steps illustrated or described may be performed in an order different than here.
Referring to fig. 1, the intelligent control method for a pulverizing system under full-operating-condition wide-load provided by the present application specifically includes:
s101, obtaining equipment information of each coal mill in a coal pulverizing system, and assigning values to each coal mill according to the equipment information to obtain a basic score 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 performing priority ranking on all the coal mills according to the evaluation scores to obtain a coal mill start-stop sequence;
s103, determining a coal mill start-stop requirement type 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 requirement type and the coal mill start-stop sequence.
The coal mill start-stop requirement 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 pulverizing system.
Specifically, as shown in fig. 2, a combustion layout diagram with four corner tangential circles is taken as an example, wherein a powder-making system of the power plant includes six coal mills, which are arranged from bottom to top as a, B, C, D, E, and F; and the coal mills B and C are provided with plasma combustion-supporting two-layer coal pulverizing systems, so that the operation of the two coal mills is preferentially ensured, and especially when the unit is in low load, in order to ensure the stable operation of the coal pulverizing system of the unit as far as possible, the operation of the two coal mills is at least ensured under the condition of grid-connected load. The starting and stopping of the coal mill are totally divided into three types, namely fault starting and stopping, alternate starting and stopping and lifting load starting and stopping. The fault starting and stopping is caused by the fact that a standby coal mill needs to be started in time when the coal mill suddenly trips to stop running during running; the alternate start and stop is that under the condition that the load is kept stable for a long time, the alternate start and stop can be carried out among a plurality of standby coal mills for the safety of equipment; the lifting load starting and stopping means that the unit is started and stopped according to the load size along with the change of the load requirement of the power plant during the intermediate adjustment. According to the three modes, the starting and the stopping of the coal mill are intelligently controlled respectively, so that the labor intensity of operators is reduced, and the running stability of a unit is ensured. In actual work, basic scores of 10, 20, 10 and 10 can be assigned to six coal mills A, B, C, D, E and F in turn in a DCS (the scores can be changed according to specific unit conditions). On the basis of the scores, the scores of six coal mills are increased or decreased by considering the equipment state of the unit coal mill to obtain evaluation scores, and when the starting and stopping conditions are met, the coal mill with high score is started preferentially; when the coal mill needs to be stopped, the coal mill with a low fraction is stopped preferentially, wherein the parameter information contained in the equipment state can be referred to as the following table 1.
TABLE 1
Referring to fig. 3, in an embodiment of the present application, controlling the coal pulverizer to be turned on or off according to the start-stop requirement type and the start-stop sequence of the coal pulverizer includes:
s301, when the start-stop requirement type is a lifting load start-stop type and the coal mill needs to be started, calling the start condition of a first priority coal mill according to the start-stop sequence of the coal mill;
s302, when the starting condition meets a preset starting standard, starting the corresponding coal mill to operate.
Further, referring to fig. 4 again, the invoking the start condition of the first coal mill with priority according to the coal mill start-stop order further includes:
s401, when the evaluation scores of at least two coal mills in the coal mill starting and stopping sequence are the same and are both at the priority head, acquiring the outage durations of the corresponding coal mills for comparison;
s402, calling the starting condition of the first coal mill of the priority according to the comparison result of the outage duration.
Specifically, in actual operation, respective fraction conditions of each coal mill can be calculated in real time according to the table 1, when the fractions of the two coal mills are the same and the priorities are consistent, the outage time of the coal mill is compared, a long coal mill with the outage time or a coal mill with the long outage time is started preferentially, and besides, when the coal mill needs to be started, whether the start-up permission condition of the coal mill is met needs to be judged, if the start-up permission condition of the coal mill is not met, 10 minutes is subtracted from the start-up fraction of the coal mill, but whether the permission condition is met when the coal mill is stopped does not need to be judged. In addition, when the coal mill is already in the running or stopping state, the coal mill does not participate in the score comparison, namely, the coal mill is not considered as a standby coal mill, and a specific logic block diagram can be shown by referring to fig. 5.
Referring to fig. 6, in an embodiment of the present application, controlling the coal pulverizer to be turned on or off according to the start-stop requirement type and the start-stop sequence of the coal pulverizer includes:
s601, when the start-stop requirement type is a fault start-stop type and the fault reason is sudden tripping, detecting logic action of the coal mill;
s602, when the logic of the coal mill does not have the preset normal action, starting a first-priority 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 requirement type and the coal mill start-stop sequence includes:
s701, when the start-stop demand type is a fault start-stop type and the load is stable, detecting the evaluation value of the coal mill according to the start-stop sequence of the coal mill;
s702, when the evaluation score 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;
s703, starting the coal mill with the first priority level according to the start-stop sequence of the coal mill to replace the coal mill with the evaluation score lower than the preset threshold value.
In actual work, the fault start-stop types are divided into two types, specifically, when the unit normally runs, the condition I is that if the tripping condition occurs and the RB logic normal action is triggered, the coal mill with high priority can not be started in a combined mode; if the mill RB logic does not act normally, we can interlock the start of the spare mill. And in the second situation, if the fraction of a certain running coal mill is lower than 5 minutes under the condition of stable load, the standby coal mill is started in an interlocking manner. And if the fraction of the coal mill is less than 5 minutes, automatically reducing the coal feeding amount of the coal mill, simultaneously increasing the coal feeding amounts of other coal mills, starting the standby coal mill while reducing the coal feeding amount of the coal mill to the minimum coal feeding amount, and then eccentrically eliminating the coal feeding amount of the standby coal mill. And finally, interlocking and stopping the coal mill with the lower fraction, namely starting and stopping the coal mill.
In an embodiment of the application, controlling the corresponding coal mill to be turned on or turned off according to the start-stop requirement type and the start-stop sequence of the coal mill includes: when the start-stop requirement type is a rotation start-stop type, sequentially stopping the corresponding coal mills from the last position to the first position according to the start-stop sequence of the coal mills; when the evaluation scores of at least two coal mills are the same, the outage duration of the corresponding coal mill is obtained for comparison, and the coal mill with longer outage duration is turned off according to the comparison result of the outage duration. Specifically, in actual work, the start-stop process under the alternate start-stop type requirement is mainly as follows: when the load of the unit is stable, the coal mill is allowed to be put into the alternate start-stop button, the coal mill with the lowest score starts to time after the operator puts into the alternate start-stop button, and when the alternate cycle time is up, the coal mill is started first and then stopped according to the condition II in the mode of starting and stopping the coal mill in a fault. If the coal mills have the same score and are all the lowest scores, the running time of the coal mills is compared, and the coal mill with long running time is preferentially rotated.
Referring to fig. 8, the present application further provides an intelligent control device for a pulverizing system under full-operating-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 a basic score of each coal mill; the adjusting module is used for respectively acquiring the equipment states of 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 the coal mills, and performing priority ranking on the coal mills according to the evaluation scores to obtain the start-stop sequence of the coal mills; the control module is used for determining the coal mill start-stop requirement type 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 requirement type and the coal mill start-stop sequence. In practice, the specific implementation logic and implementation of each component have been similarly exemplified in the foregoing embodiments, and detailed description thereof is omitted here.
The beneficial technical effect of this application lies in: the running state of each coal mill and the change conditions of main steam temperature and load are comprehensively considered, and the intelligent control is carried out under the environment of full working condition and wide load, so that the operation steps of operators are reduced. The coal mill of the coal pulverizing system is intelligently controlled to start and stop, 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 the test is improved; the stability of main parameters of the unit, such as main steam pressure, can be improved, and the unit is favorable for adapting to frequent fluctuation under wide load.
The application also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the method.
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: communication module 110, input unit 120, audio processing unit 130, display 160, power supply 170. It is noted that the electronic device 600 does not necessarily include all of the components shown in FIG. 9; furthermore, the electronic device 600 may also comprise components not shown in fig. 9, which may be referred to in the prior art.
As shown in fig. 9, the central processor 100, sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device, the central processor 100 receiving input and controlling 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 relating to the failure may be stored, and a program for executing the information may be stored. And the central processing unit 100 may execute the program stored in the memory 140 to realize information storage or processing, etc.
The input unit 120 provides input to the cpu 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 to display an object to be displayed, such as an image or a character. The display may be, for example, an LCD display, but is not limited thereto.
The memory 140 may be a solid state memory such as Read Only Memory (ROM), Random Access Memory (RAM), a SIM card, or the like. There may also be a memory that holds information even when power is off, can be selectively erased, and is provided with more data, an example of which is sometimes called an EPROM or the like. The memory 140 may also be some other type of device. Memory 140 includes buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application/function storage section 142, and the application/function storage section 142 is used to store application programs and function programs or a flow for executing the operation of the electronic device 600 by the central processing unit 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 portion 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 application, address book application, etc.).
The communication module 110 is a transmitter/receiver 110 that transmits and receives signals via an antenna 111. The 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 receive audio input from the microphone 132 to implement general telecommunications functions. Audio processor 130 may include any suitable buffers, decoders, amplifiers and so forth. In addition, an audio processor 130 is also coupled to the central processor 100, so that recording on the local can be enabled through a microphone 132, and so that sound stored on the local can be played through a speaker 131.
As will be appreciated by one skilled in the art, 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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 above-mentioned embodiments are further described in detail for the purpose of illustrating the invention, and it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An intelligent control method for a pulverizing system under all-condition wide load is characterized by comprising the following steps:
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 a basic score of each coal mill;
respectively acquiring the equipment state of each coal mill in a coal pulverizing system, adjusting the basic value of the corresponding coal mill according to the equipment state to obtain the evaluation value of each coal mill, and performing priority ranking on each coal mill according to the evaluation value to obtain the start-stop sequence of the coal mill;
determining the coal mill start-stop requirement type according to the operation state of the coal pulverizing system, and controlling the corresponding coal mill to start or stop according to the start-stop requirement type and the coal mill start-stop sequence.
2. The intelligent control method for the coal pulverizing system under the full-operating-condition wide load of claim 1, wherein the coal pulverizer start-stop requirement type comprises determining the coal pulverizer start-stop requirement type to be a lifting load start-stop type, a fault start-stop type and a rotation start-stop type according to the operating state of the coal pulverizing system.
3. The intelligent control method for a coal pulverizing system under full-operating-condition and wide-load as claimed in claim 2, wherein controlling the corresponding coal pulverizer to be turned on or off according to the start-stop requirement type and the start-stop sequence of the coal pulverizer comprises:
when the start-stop requirement type is a lifting load start-stop type and the coal mill needs to be started, the start-up condition of the first-level coal mill with the priority is called according to the start-stop sequence of the coal mill;
and when the starting condition meets a preset starting standard, starting the corresponding coal mill to operate.
4. The intelligent control method for a coal pulverizing system under full-operating-condition and wide-load as claimed in claim 3, wherein the step of calling the start-up condition of the first-priority coal pulverizer according to the start-stop order of the coal pulverizers further comprises the steps of:
when the evaluation scores of at least two coal mills are the same and are positioned at the first priority in the starting and stopping sequence of the coal mills, acquiring the outage durations of the corresponding coal mills for comparison;
and calling the starting condition of the first coal mill of the priority according to the comparison result of the outage duration.
5. The intelligent control method for a coal pulverizing system under full-operating-condition and wide-load as claimed in claim 2, wherein controlling the corresponding coal pulverizer to be turned on or off according to the start-stop requirement type and the start-stop sequence of the coal pulverizer comprises:
when the start-stop requirement type is a fault start-stop type and the fault reason is sudden tripping, detecting the logic action of the coal mill;
and when the logic of the coal mill does not have the preset normal action, starting a first priority coal mill according to the start-stop sequence of the coal mill.
6. The intelligent control method for a coal pulverizing system under full-operating-condition and wide-load as claimed in claim 2, wherein the step of calling the start-up condition of the first-priority coal pulverizer according to the start-stop order of the coal pulverizers further comprises the steps of:
when the start-stop demand type is a fault start-stop type and the load is stable, detecting the evaluation value of the coal mill according to the start-stop sequence of the coal mill;
when the evaluation score 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 to replace the coal mill with the evaluation score lower than the preset threshold value.
7. The intelligent control method for a coal pulverizing system under full-operating-condition and wide-load as claimed in claim 2, wherein controlling the corresponding coal pulverizer to be turned on or off according to the start-stop requirement type and the start-stop sequence of the coal pulverizer comprises:
when the start-stop requirement type is a rotation start-stop type, sequentially stopping the corresponding coal mills from the last position to the first position according to the start-stop sequence of the coal mills;
when the evaluation scores of at least two coal mills are the same, the outage duration of the corresponding coal mill is obtained for comparison, and the coal mill with longer outage duration is turned off according to the comparison result of the outage duration.
8. The intelligent control device for the pulverizing system under the 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 a basic score of each coal mill;
the adjusting module is used for respectively acquiring the equipment state of each coal mill in the coal pulverizing system, adjusting the basic score of the corresponding coal mill according to the equipment state to obtain the evaluation score of each coal mill, and performing priority ranking on each coal mill according to the evaluation score to obtain the start-stop sequence of the coal mill;
the control module is used for determining the starting and stopping requirement 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 starting and stopping requirement type and the starting and stopping sequence of the coal mill.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein 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.
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