CN112418725A - Intelligent queuing alternate working method for multiple working pumps and multiple standby pumps - Google Patents
Intelligent queuing alternate working method for multiple working pumps and multiple standby pumps Download PDFInfo
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- CN112418725A CN112418725A CN202011453202.3A CN202011453202A CN112418725A CN 112418725 A CN112418725 A CN 112418725A CN 202011453202 A CN202011453202 A CN 202011453202A CN 112418725 A CN112418725 A CN 112418725A
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- G06Q10/00—Administration; Management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
Abstract
An intelligent queuing alternate working method for a plurality of working pumps and a plurality of standby pumps comprises the following steps: and initializing, and determining the number i of the working pumps of the system and the total number j of the pumps. And collecting multiple working condition factors of all pumps and determining various working condition values of all pumps. And (4) carrying out weight sequencing according to various working condition factors of all the pumps, and determining the weight values of various working condition factors of all the pumps. And calculating the priority score of each pump according to the working condition values corresponding to the various working condition factors of all the pumps and the weight values corresponding to the corresponding working condition factors. Prioritizing all pumps in the system according to the priority score of each pump; according to the priority sequence of all pumps, the first i pumps with the highest priority are taken as working pumps, and the other j-i pumps are taken as standby pumps; and detecting the running states of all the pumps, and if any pump stops running. The invention is suitable for a plurality of working pumps and a plurality of standby pumps, and takes the queuing alternation condition of different weights of a plurality of working condition factors into consideration; the applicability is wider and the universality is stronger.
Description
Technical Field
The invention belongs to the technical field of industrial pump control, and particularly relates to an intelligent queuing alternate working method for a plurality of working pumps and a plurality of standby pumps.
Background
In industrial control, there are many applications that require the pump-alternation operation method, such as: the hydraulic system of the speed regulator of the hydroelectric generating set generally adopts the control of starting and stopping a plurality of oil pump motors to carry out system oil pressure control, the gas system generally adopts the control of starting and stopping a plurality of air compressor pumps to carry out system air pressure control, and the drainage system generally adopts the control of starting and stopping a plurality of drainage pumps to carry out liquid level control. The Chinese patent discloses a method for intelligently rotating work of leakage drainage pumps of pump stations (application publication number: CN 110985362A). by adopting the method, the problem of pump rotation influenced by a limited working condition factor of pump running time can be only solved under the conditions that a single pump works and a plurality of pumps are standby in industrial control. The problem of pump alternation caused by the influence of other working condition factors except the pump running time under the conditions of working of a plurality of pumps and standby of a plurality of pumps can not be solved. Therefore, the pump alternation problem that the influence of various working conditions and different weights can be considered under the conditions of working of a plurality of pumps and standby of a plurality of pumps needs to be researched.
Disclosure of Invention
In order to solve the problem of pump alternation under the condition that a plurality of pumps work and are standby, the influence of a plurality of working condition factors is considered. The invention provides an intelligent queuing alternate working method for a plurality of working pumps and a plurality of standby pumps.
The technical scheme adopted by the invention is as follows:
an intelligent queuing alternate working method for a plurality of working pumps and a plurality of standby pumps comprises the following steps:
step 1: and initializing, and determining the number i of the working pumps of the system and the total number j of the pumps.
Step 2: and collecting multiple working condition factors of all pumps and determining various working condition values of all pumps.
And step 3: and (4) carrying out weight sequencing according to various working condition factors of all the pumps, and determining the weight values of various working condition factors of all the pumps.
And 4, step 4: and calculating the priority score of each pump according to the working condition values corresponding to the various working condition factors of all the pumps and the weight values corresponding to the corresponding working condition factors.
And 5: prioritizing all pumps in the system according to the priority score of each pump;
step 6: according to the priority sequence of all pumps, the first i pumps with the priority sequence from high to low are taken as working pumps, and other j-i pumps are taken as standby pumps;
and 7: and (5) detecting the running states of all the pumps, and if any pump stops running, returning to the step 2.
In step 2, the multiple working condition factors include: the operation times of the pump, whether the pump can work normally or not, and the operation state of the pump is manually set by a handle of 'active', 'standby' or 'cut'. The steps of the invention take the three working condition factors as examples, and the working condition factors can be expanded according to the actual application condition in actual application.
The various operating conditions of all pumps are as follows:
in all the pumps, if the pumps can work normally, the working condition value X is 1; if the pump can not work normally, the working condition value X is 0. Setting the working condition value of the n number pump as Xn；
In all the pumps, if the pumps can work normally, the working condition value X is 1; if the pump can not work normally, the working condition value X is 0. Setting the working condition value of the n number pump as Xn。
In all pumps, if the operating state of the pump is manually set as 'main use', the value of the state working condition value Y is 2; if the operating state handle of the pump is manually set as 'standby', the working condition value Y of the state is 1; if the operating state handle of the pump is artificially set to be cut off, the state working condition value Y is 0. The reason for taking the value is that the operating state of the pump is manually set to be 'primary' with higher priority than manually set to be 'standby', and manually set to be 'standby' with higher priority than manually set to be 'cut'. Setting the state working condition value of the n number pump as Yn。
In all the pumps, the operation times of the pumps are sequenced, and the pump time working condition values Z corresponding to the times from high to low are sequentially 1, 2 … … 5 and 6. The number working condition value of the n number pump is set as Zn。
In the step 3, the importance of three factors considered by the pump alternation is that: whether the pump can work normally or not, the running state handle of the pump is manually set in a primary mode, a standby mode or a cutting mode, and the running times of the pump are counted;
setting a weight value a =100 for judging whether the pump can work normally;
the operation state of the pump is that the weight value b =10 which is manually set by the handle of the 'main use', 'standby' or 'cut-off';
the weight value c =1 for the number of pump runs.
In the step 4, calculating the priority score M = aX + bY + cZ =100X +10Y + Z for each pump; the priority score M for pump number nn=100Xn+10Yn+Zn。
In said step 5, according to MnThe size of the pump, the priority score M of the number n pumpnThe larger the priority, the more forward it will be in the queue, let M ben1≧Mn2≧Mn3≧Mn4≧Mn5≧Mn6Then the priority ranking is as follows: n1, n2, n3, n4, n5 and n 6.
The invention discloses an intelligent queuing alternate working method of a plurality of working pumps and a plurality of standby pumps, which has the following technical effects:
1) the intelligent queuing alternate working method for the multiple working pumps and the multiple standby pumps can solve the problem of pump alternation influenced by single working condition factors under the conditions that a single pump works and the multiple pumps are standby, and can also solve the problem of pump alternation influenced by multiple working condition factors under the conditions that the multiple pumps work and the multiple pumps are standby.
2) The intelligent queuing alternate working method for the plurality of working pumps and the plurality of standby pumps has the advantages of wider applicability and stronger universality. The method is suitable for multiple working pumps and multiple standby pumps, and the queuing alternation condition of different weights of multiple working condition factors is considered.
Drawings
FIG. 1 is a schematic flow chart of the method of the present invention.
Detailed Description
The intelligent queuing alternate working method of the working pumps and the standby pumps is applied to alternate control of overhauling and draining pumps of a draining system of a hydropower station. The system has 6 overhaul drainage pumps in total, wherein 2 pumps are started to serve as working pumps and 4 pumps serve as standby pumps during normal work. The method of the present invention will be described in detail below with reference to the examples.
The method comprises the following steps: and (3) initializing a PLC (programmable logic controller) for overhauling and draining systems, and determining that the number of working pumps of the overhauling and draining systems of a certain hydropower station is 2 and the total number of pumps is 6.
Step two: the PLC controller of the maintenance drainage system collects various working condition factors of the pump and determines various working condition values.
When a certain hydropower station overhauls and drains off the design of the water system, what carry on the pump round to consider is the running number of times of the pump, whether the pump can work normally, running state handle "main use", "standby", or "cut" of the pump sets up three operating mode factors artificially. Therefore, the PLC controller for overhauling the drainage system collects the operation times of the pump, whether the pump can work normally or not, and the operating state of the pump is manually set (main use, standby use and cutting off) to obtain the working condition factor information.
In all the pumps, if the pumps can work normally, the working condition value X is 1; if the pump can not work normally, the working condition value X is 0. Let the operating mode value of the n number pump be Xn。
In all pumps, if the operating state of the pump is manually set as 'main use', the value of the state working condition value Y is 2; if the operating state handle of the pump is manually set as 'standby', the working condition value Y of the state is 1; if the operating state handle of the pump is artificially set to be cut off, the state working condition value Y is 0. The reason for taking the value is that the operating state of the pump is manually set to be 'primary' with higher priority than manually set to be 'standby', and manually set to be 'standby' with higher priority than manually set to be 'cut'. Setting the state working condition value of the n number pump as Yn。
In all the pumps, the operation times of the pumps are sequenced, and the pump time working condition values Z corresponding to the times from high to low are sequentially 1, 2 … … 5 and 6. The number working condition value of the n number pump is set as Zn。
Step three: and carrying out weight sequencing according to various working condition factors of the pump, and determining the weight values of various working condition factors.
When a certain hydropower station overhauls a drainage system, three factors of importance which are determined to be considered by turns of a pump are sequentially from high to low: the pump can not work normally, the running state handle of the pump is manually set to be 'active', 'standby' or 'cut off', and the running times of the pump are counted. Whether the pump can work normally is a prerequisite condition for starting the pump, and if the pump cannot work normally, the pump cannot be started, so that the importance of the factor of whether the pump can work normally is highest. In addition, in industrial control, the manual control priority is usually higher than the automatic control priority, so that manual intervention for out-of-control automatic control is facilitated, and fault treatment is performed, so that the importance of the manual setting factor of the operating state handle of the pump, namely ' primary ', standby ' or ' cut-off ' is higher than that of the operating frequency factor of the pump.
Therefore, the weight value a =100 for setting whether the pump can work normally, the weight value b =10 for setting the operation state handle of the pump as "active", "standby", or "cut", and the weight value c =1 for the operation times of the pump.
Step four: and calculating the priority score of each pump according to the working condition values corresponding to the various working condition factors of the pump and the weight values corresponding to the corresponding working condition factors. Calculating a priority score M = aX + bY + cZ =100X +10Y + Z for each pump, respectively; the priority score M for pump number nn=100Xn+10Yn+Zn。
Step five: all pumps in the system are prioritized according to the priority score of each pump.
According to MnThe size of the pump, the priority score M of the number n pumpnThe larger the priority, the higher it will be ranked the further forward in the queue. Let Mn1≧Mn2≧Mn3≧Mn4≧Mn5≧Mn6Then the priority ranking is as follows: n1, n2, n3, n4, n5 and n 6.
Step six: according to the priority sequence of the pumps, the first i pumps with the highest priority are taken as working pumps, and the other j-i pumps are taken as standby pumps; the method comprises the following steps: according to the sequence of the pumps, the first 2 pumps with the highest priority are taken as working pumps, and the other 4 pumps are taken as standby pumps. Namely, the pump No. n1 and the pump No. n2 are selected as working pumps, and the other 4 pumps are selected as standby pumps.
Step seven: and (5) detecting the running states of all the pumps by the PLC controller of the maintenance drainage system, and returning to the step two if any pump stops running.
Claims (5)
1. An intelligent queuing alternate working method for a plurality of working pumps and a plurality of standby pumps is characterized by comprising the following steps:
step 1: initializing, and determining the number i of working pumps and the total number j of pumps of the system;
step 2: collecting multiple working condition factors of all pumps, and determining various working condition values of all pumps;
and step 3: according to various working condition factors of all pumps, carrying out weight sequencing and determining the weight values of various working condition factors of all pumps;
and 4, step 4: calculating the priority score of each pump according to the working condition values corresponding to various working condition factors of all pumps and the weight values corresponding to the corresponding working condition factors;
and 5: prioritizing all pumps in the system according to the priority score of each pump;
step 6: according to the priority sequence of all pumps, the first i pumps with the priority sequence from high to low are taken as working pumps, and other j-i pumps are taken as standby pumps;
and 7: and (5) detecting the running states of all the pumps, and if any pump stops running, returning to the step 2.
2. The intelligent queuing alternate working method for the working pumps and the standby pumps as claimed in claim 1, wherein: in step 2, the multiple working condition factors include: the running times of the pump, whether the pump can work normally or not, and the running state of the pump is manually set by a handle of 'main use', 'standby' or 'cut';
the various operating conditions of all pumps are as follows:
in all the pumps, if the pumps can work normally, the working condition value X is 1; if the pump can not work normally, the value of the working condition value X is 0; setting the working condition value of the n number pump as Xn；
In all the pumps, if the pumps can work normally, the working condition value X is 1; if the pump can not work normally, the value of the working condition value X is 0; setting the working condition value of n number of pumpsIs Xn；
In all pumps, if the operating state of the pump is manually set as 'main use', the value of the state working condition value Y is 2; if the operating state handle of the pump is manually set as 'standby', the working condition value Y of the state is 1; if the operating state handle of the pump is artificially set to be cut off, the state working condition value Y is 0; setting the state working condition value of the n number pump as Yn；
In all the pumps, sequencing the operation times of the pumps, wherein the pump time working condition values Z corresponding to the times from high to low are 1, 2 … … 5 and 6 in sequence; the number working condition value of the n number pump is set as Zn。
3. The intelligent queuing alternate working method for the working pumps and the standby pumps as claimed in claim 1, wherein: in the step 3, the importance of three factors considered by the pump alternation is that: whether the pump can work normally or not, the running state handle of the pump is manually set in a primary mode, a standby mode or a cutting mode, and the running times of the pump are counted;
setting a weight value a =100 for judging whether the pump can work normally;
the operation state of the pump is that the weight value b =10 which is manually set by the handle of the 'main use', 'standby' or 'cut-off';
the weight value c =1 for the number of pump runs.
4. The intelligent queuing alternate working method for the working pumps and the standby pumps as claimed in claim 1, wherein: in the step 4, calculating the priority score M = aX + bY + cZ =100X +10Y + Z for each pump; the priority score M for pump number nn=100Xn+10Yn+Zn。
5. The intelligent queuing alternate working method for the working pumps and the standby pumps as claimed in claim 4, wherein: in said step 5, according to MnThe size of the pump, the priority score M of the number n pumpnThe larger, the higher the priority, which is ranked inThe more front the queue is, set Mn1≧Mn2≧Mn3≧Mn4≧Mn5≧Mn6Then the priority ranking is as follows: n1, n2, n3, n4, n5 and n 6.
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| CN202011453202.3A CN112418725A (en) | 2020-12-11 | 2020-12-11 | Intelligent queuing alternate working method for multiple working pumps and multiple standby pumps |
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Cited By (3)
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| CN117350468A (en) * | 2023-09-07 | 2024-01-05 | 长江生态环保集团有限公司 | Centralized control mode-based scheduling method for regulation and storage pool system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113703383A (en) * | 2021-07-13 | 2021-11-26 | 四川省紫坪铺开发有限责任公司 | Intelligent motor rotation control method |
| CN114320866A (en) * | 2022-03-08 | 2022-04-12 | 湖南易净环保科技有限公司 | Centralized management control system for distributed integrated pump station |
| CN117350468A (en) * | 2023-09-07 | 2024-01-05 | 长江生态环保集团有限公司 | Centralized control mode-based scheduling method for regulation and storage pool system |
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Application publication date: 20210226 |