CN110829426B - Method and device for adjusting maximum demand of enterprise - Google Patents
Method and device for adjusting maximum demand of enterprise Download PDFInfo
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- CN110829426B CN110829426B CN201911173935.9A CN201911173935A CN110829426B CN 110829426 B CN110829426 B CN 110829426B CN 201911173935 A CN201911173935 A CN 201911173935A CN 110829426 B CN110829426 B CN 110829426B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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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
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06315—Needs-based resource requirements planning or analysis
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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
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
Abstract
The invention discloses a method for adjusting the maximum demand of an enterprise, which comprises the following steps: acquiring the maximum demand and the maximum demand occurrence time of an enterprise; determining each adjustable device, the corresponding adjustable time period thereof and the adjustable demand at each moment of the adjustable time period in a demand adjustment level library constructed by adopting a preset method according to the occurrence moment of the maximum demand; determining a target adjustment time period according to each adjustable time period; and adjusting the maximum demand according to the adjustable demand at each moment in the target adjustment time period to obtain a target maximum demand, wherein the target maximum demand is less than the maximum demand. According to the method, the maximum demand is adjusted to the target maximum demand, and the target maximum demand is smaller than the maximum demand, so that the basic electric charge cost of an enterprise is reduced, and the aim of reducing electric charge expenditure is fulfilled.
Description
Technical Field
The invention relates to the technical field of power prediction, in particular to a method and a device for adjusting the maximum demand of an enterprise.
Background
Most of the former general industrial and commercial enterprises execute two electricity making prices, one part is called basic electricity price, which is calculated by enterprise power receiving capacity (kVA) or customer maximum demand (kW), commonly called capacity fee or demand fee, and the demand fee is paid regardless of whether the enterprise uses electricity or not and is unrelated to actual electricity consumption; the receiving capacity refers to the capacity of an enterprise transformer, and the maximum demand refers to the maximum power according to real-time monitoring. The other part is called electricity consumption price, and the electricity consumption is calculated according to the actual electricity consumption of the enterprise and by combining the corresponding electricity price, so that the amount of the consumed electricity is independent of the transformer capacity of the enterprise and the electricity consumption demand.
When the load rate of the transformer is not high (generally not more than 60%), an enterprise chooses to pay the basic electricity fee according to the maximum demand, but the maximum demand of the enterprise is likely to change every month, so that the expenditure of the basic electricity fee is influenced, and therefore a reasonable technical means is needed to optimize and control the maximum demand value of the enterprise, the cost of the basic electricity fee of the enterprise is reduced, and the purpose of reducing the expenditure of the electricity fee is achieved.
Disclosure of Invention
In view of the above, the present invention provides a method and an apparatus for adjusting the maximum demand of an enterprise, so as to optimize and control the maximum demand of the enterprise by using a reasonable technical means, and reduce the basic electricity cost of the enterprise, so as to achieve the purpose of reducing the electricity cost, and the specific scheme is as follows:
a method for adjusting the maximum demand of an enterprise comprises the following steps:
acquiring the maximum demand and the maximum demand occurrence time of an enterprise;
determining each adjustable device, the corresponding adjustable time period thereof and the adjustable demand at each moment of the adjustable time period in a demand adjustment level library constructed by adopting a preset method according to the occurrence moment of the maximum demand;
determining a target adjustment time period according to each adjustable time period;
and adjusting the maximum demand according to the adjustable demand at each moment in the target adjustment time period to obtain a target maximum demand, wherein the target maximum demand is less than the maximum demand.
The method, optionally, may further include the step of constructing a demand adjustment level library by using a preset method, including:
acquiring an initial load characteristic curve of each device in the enterprise;
adjusting the initial characteristic curve according to the requirements of the production flow to obtain a target load curve of each device;
determining an adjustable time period of each device and an adjustable demand at each moment in the adjustable time period according to the target load curve and the initial load curve;
and storing the devices, the corresponding adjustable time periods thereof and the adjustable demand at each moment in the adjustable time periods into the demand adjustment level library.
Optionally, the method for determining each adjustable device, the adjustable time period corresponding to each adjustable device, and the adjustable demand at each time of the adjustable time period in the demand adjustment level library constructed by the preset method according to the maximum demand occurrence time includes:
traversing the demand adjustment level library, and searching each adjustment time period containing the maximum demand occurrence time;
and determining the corresponding adjustable equipment and the adjustable demand of each moment in the adjustable time interval according to each adjustable time interval.
The method optionally includes determining a target adjustment period according to each adjustable period, and includes:
determining, for each adjustable period, an intersection period of the each adjustable period, wherein the intersection period represents a period from an initial time to an end time;
and selecting the time period from the maximum demand occurrence time to the end time in the intersection time period as the target adjustment time period.
Optionally, the method for adjusting the maximum demand according to the adjustable demand at each time in the target adjustment time period to obtain the target maximum demand includes:
determining the demand of each moment in the target time period according to the maximum demand and the adjustable demand of each moment in the target adjustment time period;
and selecting the minimum value of the demands as the target maximum demand of the enterprise.
An apparatus for adjusting maximum demand of an enterprise, comprising:
the acquisition module is used for acquiring the maximum demand and the maximum demand occurrence time of an enterprise;
the first determining module is used for determining each adjustable device, the corresponding adjustable time interval and the adjustable demand at each moment of the adjustable time interval in a demand adjusting level library constructed by adopting a preset method according to the maximum demand occurrence moment;
the second determining module is used for determining a target adjusting time interval according to each adjustable time interval;
and the adjusting module is used for adjusting the maximum demand according to the adjustable demand at each moment in the target adjusting time period to obtain the target maximum demand, wherein the target maximum demand is less than the maximum demand.
Optionally, the apparatus described above, where the demand adjustment level library constructed by using a preset method in the first determining module includes:
the acquisition unit is used for acquiring an initial load characteristic curve of each device in the enterprise;
the adjusting unit is used for adjusting the initial characteristic curve according to the production flow requirements to obtain a target load curve of each device;
a first determining unit, configured to determine, according to the target load curve and the initial load curve, an adjustable time period of each device and an adjustable demand at each time in the adjustable time period;
and the storage unit is used for storing each device, the corresponding adjustable time interval and the adjustable demand at each moment in the adjustable time interval into the demand adjustment level library.
The above apparatus, optionally, the first determining module includes:
the searching unit is used for traversing the demand adjustment level library and searching each adjustment time interval containing the maximum demand occurrence time;
and the second determining unit is used for determining the corresponding adjustable equipment and the adjustable demand of each moment in the adjustable time interval according to each adjustable time interval.
The above apparatus, optionally, the second determining module includes:
a third determining unit, configured to determine, for each adjustable time interval, an intersection time interval of the each adjustable time interval, where the intersection time interval represents a time interval from an initial time to an end time;
and the first selecting unit is used for selecting a time period from the maximum demand occurrence time to the end time in the intersection time period as the target adjustment time period.
The above apparatus, optionally, the adjusting module includes:
a fourth determining unit, configured to determine, according to the maximum demand and the adjustable demand at each time in the target adjustment period, a demand at each time in the target time period;
and the second selecting unit is used for selecting the minimum value in the demands as the target maximum demand of the enterprise.
Compared with the prior art, the invention has the following advantages:
the invention discloses a method for adjusting the maximum demand of an enterprise, which comprises the following steps: acquiring the maximum demand and the maximum demand occurrence time of an enterprise; determining each adjustable device, the corresponding adjustable time period thereof and the adjustable demand at each moment of the adjustable time period in a demand adjustment level library constructed by adopting a preset method according to the occurrence moment of the maximum demand; determining a target adjustment time period according to each adjustable time period; and adjusting the maximum demand according to the adjustable demand at each moment in the target adjustment time period to obtain a target maximum demand, wherein the target maximum demand is less than the maximum demand. According to the method, the maximum demand is adjusted to the target maximum demand, and the target maximum demand is smaller than the maximum demand, so that the basic electric charge cost of an enterprise is reduced, and the aim of reducing electric charge expenditure is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for adjusting the maximum demand of an enterprise according to an embodiment of the present disclosure;
FIG. 2 is a graph illustrating the maximum demand of an enterprise according to an embodiment of the present disclosure;
FIG. 3 is a graph illustrating a maximum enterprise target demand according to an embodiment of the present disclosure;
FIG. 4 is a graph illustrating an operational load of an apparatus according to an embodiment of the present disclosure;
fig. 5 is a block diagram of a device for adjusting the maximum demand of an enterprise according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The invention discloses a method and a device for adjusting the maximum demand of an enterprise, which are applied to the adjustment process of the maximum demand of the enterprise, most of common industrial and commercial enterprises execute two electricity making prices at present, wherein basic electricity charges can be selected to be paid according to the maximum demand, but the maximum demand of the enterprise changes every month, and the consumption of the basic electricity charges is influenced by the demand, so that the maximum demand of the enterprise needs to be optimized and controlled by adopting a reasonable technical means, the basic electricity charge cost of the enterprise is reduced, and the aim of reducing the consumption of the electricity charges is fulfilled. The invention provides a method for adjusting the maximum demand of an enterprise by analyzing the load characteristics of different electric equipment of the enterprise and combining the maximum demand value and the occurrence time of historical electricity utilization, so as to achieve the aims of finely managing the maximum demand of the enterprise and reasonably controlling the cost. The execution flow of the adjustment method is shown in fig. 1, and includes:
s101, acquiring the maximum demand and the maximum demand occurrence time of an enterprise;
in the embodiment of the present invention, the demand refers to an average value of power in a predetermined time interval. The maximum demand is the maximum value of the demand recorded in a specified demand period, and the demand period is generally 15 minutes in China. The demand calculation has two calculation modes of interval type and slip type, and the slip type is adopted most at present.
The process of calculating the maximum demand by slip is as follows: the slip is a method for measuring demand by recursion according to the time of the minimum demand period from any time, the recursion time is called slip time, and the slip time is generally 1 minute. The slip maximum demand calculation mode is as follows: and accumulating the pulse numbers from 1min to 15min, multiplying the pulse numbers by the equivalent of the pulse electric energy (the electric energy value represented by each pulse), dividing the pulse numbers by 15min to obtain a demand value P1, storing the demand value in a storage unit with the maximum demand, and calculating the average power from (1+ t) th min to (15+ t) th min when calculating the demand value for the second time, wherein t is the time of a slip interval, and generally selecting 1 minute. And in the same way, calculating the nth time, namely calculating the average power from (1+ nt) th min to (15+ nt) th min, comparing the calculated values each time, storing the maximum value in a storage unit with the maximum demand, and acquiring the maximum demand and the occurrence time of the maximum demand in the storage unit.
S102, determining each adjustable device, the corresponding adjustable time period and the adjustable demand at each moment in the adjustable time period in a demand adjustment level library constructed by a preset method according to the maximum demand occurrence moment;
in the embodiment of the invention, the demand adjustment level library comprises each device of an enterprise, an adjustable time period of each device and an adjustable demand at each moment in the adjustable time period, the demand adjustment level library is traversed according to the maximum demand occurrence moment, the adjustment time period comprising the maximum demand occurrence moment is selected from the adjustment time periods in the demand adjustment level library, the aligned device is used as an adjustable device, and the adjustable time period corresponding to each adjustable device and the adjustable demand at each moment in the adjustable time period are determined.
S103, determining a target adjusting time interval according to each adjustable time interval
In the embodiment of the invention, the time ranges corresponding to all the adjustable time periods are obtained, the intersection time period of all the time ranges is selected, wherein the intersection time period represents the time period from the initial time to the end time, and the time period from the maximum demand occurrence time to the end time in the intersection time period is selected as the target adjusting time period.
And S104, adjusting the maximum demand according to the adjustable demand at each moment in the target adjustment time period to obtain a target maximum demand, wherein the target maximum demand is less than the maximum demand.
In the embodiment of the invention, the demand of each time in the target time period is determined according to the maximum demand and the adjustable demand of each time in the target adjustment time period, the minimum value of the demands is selected as the target maximum demand of the enterprise, and the maximum demand is assumed to be Pmax, the maximum demand generation time is t, and the demand adjusted at each time is
Wherein the target adjustment period is [ t1, t2 … tn ]]Then the model for maximum demand adjustment is as follows:
an objective function:
......
in the formula:
Ptn adjustable demandSelecting a combination value of all demand adjustable times including the adjustable demand of the demand generation time Tn in the demand adjustment level library at the nth demand adjustment, and selecting
The minimum value of (1) is used as the target maximum demand, and further it can be determined which devices are operating when the target maximum demand occurs.
In the embodiment of the present invention, the maximum demand adjustment for one time of a single device participating in an enterprise is taken as an example for explanation. As shown in FIG. 2, the maximum demand value of the enterprise is t and Pmax. And selecting equipment with an adjustable demand time interval containing t according to the equipment composition of the maximum demand occurrence time of the enterprise, and adjusting the maximum demand of the enterprise by adopting the method. After the maximum demand is adjusted, as shown by the dotted line in fig. 3, the maximum demand is reduced from Pmax to Pmax ', the time when the maximum demand occurs is changed from t to t', and the purpose of reducing the basic electricity charge by adjusting the demand is achieved.
The invention discloses a method for adjusting the maximum demand of an enterprise, which comprises the following steps: acquiring the maximum demand and the maximum demand occurrence time of an enterprise; determining each adjustable device, the corresponding adjustable time period thereof and the adjustable demand at each moment of the adjustable time period in a demand adjustment level library constructed by adopting a preset method according to the occurrence moment of the maximum demand; determining a target adjustment time period according to each adjustable time period; and adjusting the maximum demand according to the adjustable demand at each moment in the target adjustment time period to obtain a target maximum demand, wherein the target maximum demand is less than the maximum demand. According to the method, the maximum demand is adjusted to the target maximum demand, and the target maximum demand is smaller than the maximum demand, so that the basic electric charge cost of an enterprise is reduced, and the aim of reducing electric charge expenditure is fulfilled.
In the embodiment of the invention, the demand adjustment level library is constructed according to the enterprise production process and the equipment operation condition, including information such as start-stop time, operation time, start load size, peak load duration, equipment load rate and the like, and the specific construction process is as follows: if the operating load characteristic curve of a certain equipment is shown in fig. 4 below, the maximum load is P1, the occurrence time is t1, the equipment can be delayed to the curve l2 at most according to the requirements of the production process, the maximum load occurrence time is delayed to t2, the time point of intersection of the two curves is t3, the time between t1 and t3 is the adjustable time of the equipment, and the position of intersection of the two curves in the time period is the adjustable demand corresponding to the time point, for example, the area marked by the oblique line in fig. 4. the time interval from t1 to t3 and the adjustable demand are the demand adjustment capability of the equipment, and each time corresponds to the adjustable demand of the equipment.
Load characteristic analysis is carried out on main equipment of an enterprise according to the method to obtain an adjustable demand sequence of each equipment at the corresponding moment, as shown in a formula (1), all the participating adjustable equipment are described according to the adjustable demand sequence, and an equipment demand adjustment level library is established, as shown in a formula (2).
In the formula:
the maximum capacity may be adjusted for device n during time t1,
the maximum capacity is adjusted for device n during the tn period.
In the embodiment of the invention, an equipment demand adjustment grade library is established according to the load characteristics of enterprise electric equipment, the grade is adjusted according to the demand according to the production process flow of an enterprise, equipment in different demand adjustment spaces is selected for peak staggering adjustment through dynamically optimizing and adjusting the start-stop time sequence of the equipment, and finally the maximum demand of the enterprise is adjusted to a reasonable interval through dynamically optimizing and adjusting the demand adjustable equipment, so that the demand optimal value is achieved, and the aim of optimizing the enterprise electric demand is fulfilled.
For the above method for adjusting the maximum demand of an enterprise, in an embodiment of the present invention, there is further provided an apparatus for adjusting the maximum demand of an enterprise, a structural block diagram of the apparatus is shown in fig. 5, and the apparatus includes: an acquisition module 201, a first determination module 202, a second determination module 203, and an adjustment module 204.
Wherein the content of the first and second substances,
the obtaining module 201 is configured to obtain a maximum demand and a maximum demand occurrence time of an enterprise;
the first determining module 202 is configured to determine, according to the maximum demand occurrence time, each adjustable device, an adjustable time period corresponding to each adjustable device, and an adjustable demand at each time of the adjustable time period in a demand adjustment level library constructed by using a preset method;
the second determining module 203 is configured to determine a target adjustment time period according to each adjustable time period;
the adjusting module 204 is configured to adjust the maximum demand according to the adjustable demand at each time in the target adjustment time period to obtain a target maximum demand, where the target maximum demand is smaller than the maximum demand.
The invention discloses a device for adjusting the maximum demand of an enterprise, which comprises: acquiring the maximum demand and the maximum demand occurrence time of an enterprise; determining each adjustable device, the corresponding adjustable time period thereof and the adjustable demand at each moment of the adjustable time period in a demand adjustment level library constructed by adopting a preset method according to the occurrence moment of the maximum demand; determining a target adjustment time period according to each adjustable time period; and adjusting the maximum demand according to the adjustable demand at each moment in the target adjustment time period to obtain a target maximum demand, wherein the target maximum demand is less than the maximum demand. According to the device, the maximum demand is adjusted to the target maximum demand, and the target maximum demand is smaller than the maximum demand, so that the basic electric charge cost of an enterprise is reduced, and the aim of reducing electric charge expenditure is fulfilled.
In this embodiment of the present invention, the demand adjustment level library constructed by the first determining module 202 by using a preset method includes:
an acquisition unit 205, an adjustment unit 206, a first determination unit 207, and a storage unit 208.
Wherein the content of the first and second substances,
the obtaining unit 205 is configured to obtain an initial load characteristic curve of each device in the enterprise;
the adjusting unit 206 is configured to adjust the initial characteristic curve according to a requirement of a production process to obtain a target load curve of each device;
the first determining unit 207 is configured to determine an adjustable time period of each device and an adjustable demand at each time in the adjustable time period according to the target load curve and the initial load curve;
the storage unit 208 is configured to store the devices and their corresponding adjustable time periods and the adjustable demand at each time in the adjustable time periods into the demand adjustment level library.
In this embodiment of the present invention, the first determining module 202 includes:
the searching unit 209 is configured to traverse the demand adjustment level library, and search each adjustment period including the maximum demand occurrence time;
the second determining unit 210 is configured to determine, according to each adjustable time interval, an adjustable device corresponding to each adjustable time interval and an adjustable demand at each time of the adjustable time interval.
In this embodiment of the present invention, the second determining module 203 includes:
a third determination unit 211 and a first selection unit 212.
Wherein the content of the first and second substances,
the third determining unit 211 is configured to determine, for each adjustable time interval, an intersection time interval of the adjustable time intervals, where the intersection time interval represents a time interval from an initial time to an end time;
the first selecting unit 212 is configured to select, as the target adjustment time period, a time period from the maximum demand occurrence time to the end time in the intersection time period.
In this embodiment of the present invention, the adjusting module 204 includes:
a fourth determination unit 213 and a second selection unit 214.
Wherein the content of the first and second substances,
the fourth determining unit 213 is configured to determine the demand of each time in the target time period according to the maximum demand and the adjustable demand of each time in the target adjustment time period;
the second selecting unit 214 is configured to select a minimum value of the demand as a target maximum demand of the enterprise.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functions of the units may be implemented in the same software and/or hardware or in a plurality of software and/or hardware when implementing the invention.
From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
The method and the device for adjusting the maximum demand of the enterprise provided by the invention are described in detail, a specific example is applied in the method to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A method for adjusting the maximum demand of an enterprise is characterized by comprising the following steps:
acquiring the maximum demand and the maximum demand occurrence time of an enterprise;
determining each adjustable device, the corresponding adjustable time period thereof and the adjustable demand at each moment of the adjustable time period in a demand adjustment level library constructed by adopting a preset method according to the occurrence moment of the maximum demand;
determining a target adjustment time period according to each adjustable time period;
adjusting the maximum demand according to the adjustable demand at each moment in the target adjustment time period to obtain a target maximum demand, wherein the target maximum demand is less than the maximum demand;
determining the demand of each moment in the target time period according to the maximum demand and the adjustable demand of each moment in the target adjustment time period;
selecting the minimum value of all the demand as the target maximum demand of the enterprise;
the maximum demand is PmaxThe maximum demand generation time is t, and the regulated demand at each time is
Wherein the target adjustment period is [ t1, t2 … tn ]]The model for maximum demand adjustment is:
the objective function is:
......
wherein:
the maximum capacity may be adjusted for device n during time t1,
the maximum capacity can be adjusted for device n during the tn period,
adjusting the nth demand in the level library for said demandWhen adjusting, all the demand adjustable time includes the combination value of the adjustable demand of the demand generation time Tn, and the combination value is selected
The minimum value of (1) is taken as the target maximum demand.
2. The method of claim 1, wherein the demand adjustment level library constructed by the preset method comprises:
acquiring an initial load characteristic curve of each device in the enterprise;
adjusting the initial characteristic curve according to the requirements of the production flow to obtain a target load curve of each device;
determining an adjustable time period of each device and an adjustable demand at each moment in the adjustable time period according to the target load curve and the initial load curve;
and storing the devices, the corresponding adjustable time periods thereof and the adjustable demand at each moment in the adjustable time periods into the demand adjustment level library.
3. The method of claim 1, wherein determining each adjustable device, its corresponding adjustable time interval and the adjustable demand at each moment of the adjustable time interval in a demand adjustment level library constructed by a preset method according to the maximum demand occurrence moment comprises:
traversing the demand adjustment level library, and searching each adjustment time period containing the maximum demand occurrence time;
and determining the corresponding adjustable equipment and the adjustable demand of each moment in the adjustable time interval according to each adjustable time interval.
4. The method of claim 1, wherein determining a target adjustment period based on each adjustable period comprises:
determining, for each adjustable period, an intersection period of the each adjustable period, wherein the intersection period represents a period from an initial time to an end time;
and selecting the time period from the maximum demand occurrence time to the end time in the intersection time period as the target adjustment time period.
5. An apparatus for adjusting maximum demand of an enterprise, comprising:
the acquisition module is used for acquiring the maximum demand and the maximum demand occurrence time of an enterprise;
the first determining module is used for determining each adjustable device, the corresponding adjustable time interval and the adjustable demand at each moment of the adjustable time interval in a demand adjusting level library constructed by adopting a preset method according to the maximum demand occurrence moment;
the second determining module is used for determining a target adjusting time interval according to each adjustable time interval;
an adjusting module, configured to adjust the maximum demand according to the adjustable demand at each time in the target adjustment time period to obtain a target maximum demand, where the target maximum demand is smaller than the maximum demand;
a fourth determining unit, configured to determine, according to the maximum demand and the adjustable demand at each time in the target adjustment period, a demand at each time in the target time period;
the second selecting unit is used for selecting the minimum value in all the demand quantities as the target maximum demand quantity of the enterprise;
the maximum demand is PmaxThe maximum demand generation time is t, and the regulated demand at each time is
Wherein the target adjustment period is [ t1, t2 … tn ]]The model for maximum demand adjustment is:
the objective function is:
......
wherein:
the maximum capacity may be adjusted for device n during time t1,
the maximum capacity can be adjusted for device n during the tn period,
in the demand adjustment level library, all demand adjustable time in nth demand adjustment comprises the combination of the adjustable demand of the demand generation time TnValue, selection
The minimum value of (1) is taken as the target maximum demand.
6. The apparatus of claim 5, wherein the demand adjustment level library constructed by a preset method in the first determining module comprises:
the acquisition unit is used for acquiring an initial load characteristic curve of each device in the enterprise;
the adjusting unit is used for adjusting the initial characteristic curve according to the production flow requirements to obtain a target load curve of each device;
a first determining unit, configured to determine, according to the target load curve and the initial load curve, an adjustable time period of each device and an adjustable demand at each time in the adjustable time period;
and the storage unit is used for storing each device, the corresponding adjustable time interval and the adjustable demand at each moment in the adjustable time interval into the demand adjustment level library.
7. The apparatus of claim 5, wherein the first determining module comprises:
the searching unit is used for traversing the demand adjustment level library and searching each adjustment time interval containing the maximum demand occurrence time;
and the second determining unit is used for determining the corresponding adjustable equipment and the adjustable demand of each moment in the adjustable time interval according to each adjustable time interval.
8. The apparatus of claim 5, wherein the second determining module comprises:
a third determining unit, configured to determine, for each adjustable time interval, an intersection time interval of the each adjustable time interval, where the intersection time interval represents a time interval from an initial time to an end time;
and the first selecting unit is used for selecting a time period from the maximum demand occurrence time to the end time in the intersection time period as the target adjustment time period.
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| CN104113140A (en) * | 2014-07-23 | 2014-10-22 | 南京南瑞继保电气有限公司 | Industrial enterprise plant-level power demand control system and devices |
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