CN111191875B - Method for mixed dispatching of unit - Google Patents
Method for mixed dispatching of unit Download PDFInfo
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- CN111191875B CN111191875B CN201911192621.3A CN201911192621A CN111191875B CN 111191875 B CN111191875 B CN 111191875B CN 201911192621 A CN201911192621 A CN 201911192621A CN 111191875 B CN111191875 B CN 111191875B
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- 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
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Abstract
The invention provides a method for dispatching a unit in a hybrid manner, which uploads state information to a communication bus in real time and acquires the state information of other units on the communication bus, wherein the state information comprises rated power, current power, priority, a communication address, on-load switch information and running accumulated time, and the on-load switch information comprises two kinds of information of starting and stopping; and controlling the unit with high priority to start preferentially according to the state information of all the units on the communication bus and a preset control strategy, and scheduling the running time of the units with the same priority, wherein the minimum number of the on-line units is set. The invention can greatly increase the safety and flexibility of power supply, balance the running time of all the units and prolong the service life of each unit.
Description
Technical Field
The invention relates to a unit scheduling method, in particular to a method for scheduling units in a mixed mode.
Background
The unit scheduling method in the current market is divided into priority scheduling and running time scheduling, wherein the principle of the priority scheduling is as follows: each unit is preset with a priority, the unit with the high priority is started preferentially, and the unit with the low priority is stopped preferentially; the principle based on runtime scheduling is: and starting and shutting down according to the running accumulated time of each unit, wherein the unit with less running accumulated time is started preferentially. Both of the above two scheduling methods are not flexible enough and cannot satisfy all application scenarios.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a method for scheduling a unit in a mixed mode, which has flexibility and safety.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for scheduling units in a mixed mode comprises the following steps:
step 1, uploading state information to a communication bus in real time, and acquiring state information of other units on the communication bus, wherein the state information comprises rated power, current power, priority, communication address, on-load switch information and running accumulated time, and the on-load switch information comprises two kinds of information of starting and stopping;
step 2, determining a group to be started according to the state information of all the units on the communication bus and a preset control strategy;
step 3, judging whether the unit belongs to a unit to be started, if so, starting the unit according to the current loaded switch information and accumulating the accumulated running time; if not, stopping the machine and stopping the accumulated operation time length after the startup of the group to be started up is completed according to the loaded switch information of the group to be started up;
specifically, if the current on-load switch information belongs to the group to be started and is the start, the start is maintained and the accumulated running time duration is continuously accumulated;
if the current on-load switch information belongs to the group to be started and is off, starting up and accumulating the running accumulated time length;
if the current loaded switch information is the starting time, stopping the machine and stopping the accumulated operation for accumulated time length after the starting time of the group to be started is finished;
and if the current on-load switch information does not belong to the group to be started and is shutdown, the current on-load switch information does not act.
Based on the above, the specific steps of step 2 are:
step 2.1, accumulating the current power of all the units to calculate the total power of the current load;
step 2.2, sequencing all the units according to the sequence of the priorities from high to low, sequencing the units with the same priority according to the sequence of the running time from less to more, and sequencing the units with the same running accumulated time length according to the sequence of the communication addresses from small to large;
step 2.3, calculating the sum of the rated powers of the first i units of the sorting queue obtained in the step 2.2, and calculating the difference value between the sum of the rated powers of the first i units and the total power of the current load, wherein i is an integer, and the initial value of i is 1;
step 2.4, judging whether the difference value between the sum of the rated power of the previous i units and the total power of the current load is greater than the reserve power, if not, accumulating 1 for i, judging whether the total number of the units is less than or equal to the total number of the units, if so, returning to execute the step 2.3, otherwise, exiting the program; if the number of the on-line units is larger than the preset value, further judging whether the number of the on-line units is larger than or equal to the minimum number, if so, selecting the previous i units as the group to be started, otherwise, selecting the units of the previous minimum on-line units as the group to be started.
Compared with the prior art, the method has outstanding substantive characteristics and remarkable progress, and particularly, the decision processes of starting and stopping each unit on the communication bus are the same, namely, the unit with high priority is started preferentially, the units with the same priority are scheduled for running time, and the minimum number of the on-line units is set; each unit dynamically adjusts the on and off of all units according to the state information of all units acquired in real time and a preset control strategy, so that the safety and flexibility of power supply are greatly improved on the premise of ensuring that the capacity of the starting unit meets the load, the running time of all units is balanced, and the service life of each unit is prolonged.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
As shown in fig. 1, a method for scheduling a unit in a hybrid manner includes the following steps:
step 1, uploading state information to a communication bus in real time, and acquiring state information of other units on the communication bus, wherein the state information comprises rated power, current power, priority, communication address, on-load switch information and running accumulated time, and the on-load switch information comprises two kinds of information of starting and stopping;
step 2, determining a group to be started according to the state information of all the units on the communication bus and a preset control strategy;
step 3, judging whether the unit belongs to a unit to be started, if so, starting the unit according to the current loaded switch information and accumulating the accumulated running time; if the current on-load switch information is the startup, keeping the startup and continuously accumulating the running accumulated time length; if the current on-load switch information is off, starting up and starting to accumulate the running accumulated time length;
if not, stopping the machine and stopping the accumulated operation time length after the startup of the group to be started up is completed according to the loaded switch information of the group to be started up; specifically, if the current information of the on-load switch is the startup, the system is stopped and the accumulated operation time length is stopped after the startup of the group to be started is completed; and if the current on-load switch information is shutdown, the operation is not performed.
In the invention, the decision processes of starting and stopping each unit on the communication bus are the same, so that the information of the starting and stopping units decided by each unit is the same. Specifically, the preset control strategy is as follows: the machine set with high priority is started preferentially, the machine sets with the same priority are scheduled for running time, and meanwhile the minimum number of the on-line machine sets is set.
Based on the preset control strategy, the specific steps of step 2 are as follows:
step 2.1, accumulating the current power of all the units to calculate the total power a of the current load;
step 2.2, sequencing all the units according to the sequence of the priorities from high to low, sequencing the units with the same priority according to the sequence of the running time from less to more, and sequencing the units with the same running accumulated time length according to the sequence of the communication addresses from small to large;
step 2.3, calculating the sum b of the rated powers of the first i units of the sequencing queue obtained in the step 2.2, and calculating the difference between the sum b of the rated powers of the first i units and the total power a of the current load, wherein i is an integer, and the initial value of i is 1;
step 2.4, judging whether the difference value between the sum b of the rated powers of the previous i units and the total power a of the current load is larger than the reserve power x, namely judging whether b-a is larger than x, if not, accumulating 1 by i, judging whether i is smaller than or equal to the total number of the units, if so, returning to execute the step 2.3, otherwise, exiting the program; if the number of the on-line units is larger than the preset value, further judging whether the number of the on-line units is larger than or equal to the minimum number, if so, selecting the previous i units as the group to be started, otherwise, selecting the units of the previous minimum on-line units as the group to be started.
It should be noted that: the priority of the unit needs to be pre-equipped, and the priority of different units can be the same or different; each unit has a unique communication address.
According to the invention, each unit dynamically adjusts the on and off of all units according to the state information of all units acquired in real time and the preset control strategy, so that the safety and flexibility of power supply are greatly improved on the premise of ensuring that the capacity of the starting unit meets the load, the running time of all units is balanced, and the service life of each unit is prolonged.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (2)
1. A method for scheduling a unit in a hybrid manner is characterized by comprising the following steps:
step 1, uploading state information to a communication bus in real time, and acquiring state information of other units on the communication bus, wherein the state information comprises rated power, current power, priority, communication address, on-load switch information and running accumulated time, and the on-load switch information comprises two kinds of information of starting and stopping;
step 2, determining a group to be started according to the state information of all the units on the communication bus and a preset control strategy;
step 2.1, accumulating the current power of all the units to calculate the total power of the current load;
step 2.2, sequencing all the units according to the sequence of the priorities from high to low, sequencing the units with the same priority according to the sequence of the running time from less to more, and sequencing the units with the same running accumulated time length according to the sequence of the communication addresses from small to large;
step 2.3, calculating the sum of the rated powers of the first i units of the sorting queue obtained in the step 2.2, and calculating the difference value between the sum of the rated powers of the first i units and the total power of the current load, wherein i is an integer, and the initial value of i is 1;
step 2.4, judging whether the difference value between the sum of the rated power of the previous i units and the total power of the current load is greater than the reserve power, if not, accumulating 1 for i, judging whether the total number of the units is less than or equal to the total number of the units, if so, returning to execute the step 2.3, otherwise, exiting the program; if the number of the on-line units is larger than the preset value, further judging whether the number of the on-line units is larger than or equal to the minimum number, if so, selecting the previous i units as the group to be started, otherwise, selecting the units of the previous minimum number as the group to be started;
step 3, judging whether the unit belongs to a unit to be started, if so, starting the unit according to the current loaded switch information and accumulating the accumulated running time; if not, stopping the machine and stopping the accumulated operation time length after the startup of the group to be started up is completed according to the loaded switch information of the group to be started up.
2. The method of claim 1, wherein: the step 3 specifically comprises the following steps:
if the current loaded switch information belongs to the group to be started and the current loaded switch information is started, keeping starting and continuously accumulating the running accumulated time length;
if the current on-load switch information belongs to the group to be started and is off, starting up and accumulating the running accumulated time length;
if the current loaded switch information is the starting time, stopping the machine and stopping the accumulated operation for accumulated time length after the starting time of the group to be started is finished;
and if the current on-load switch information does not belong to the group to be started and is shutdown, the current on-load switch information does not act.
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| CN201911192621.3A CN111191875B (en) | 2019-11-28 | 2019-11-28 | Method for mixed dispatching of unit |
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| CN111191875B true CN111191875B (en) | 2021-11-12 |
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| CN111678254A (en) * | 2020-06-03 | 2020-09-18 | 青岛海信日立空调系统有限公司 | Air source heat pump unit |
| CN111678255A (en) * | 2020-06-03 | 2020-09-18 | 青岛海信日立空调系统有限公司 | Air source heat pump unit |
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| CN104037817B (en) * | 2014-06-19 | 2016-01-20 | 国家电网公司 | The wind energy turbine set Wind turbines automatic start-stop control method utilizing hourage deviation minimum |
| CN105811472B (en) * | 2016-04-14 | 2018-08-14 | 国电联合动力技术有限公司 | A kind of active power regulation method and system based on wind power plant economy |
| CN108228510A (en) * | 2018-01-17 | 2018-06-29 | 广东工业大学 | A kind of referee method of bus, equipment, storage medium and bus arbiter |
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