CN113346486A - Power supply method and system for new energy power generation hybrid scene - Google Patents
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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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- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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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
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Abstract
The invention discloses a power supply method and a power supply system for a new energy power generation hybrid scene, wherein the power supply method for the new energy power generation hybrid scene comprises the following steps: acquiring the estimated expected power supply requirement of the target load; estimating the electric energy which can be output by the current new energy; judging whether other electric energy is needed according to a comparison result between the expected power supply demand and the estimated electric energy; when the judgment result shows that other electric energy is needed, determining a demand value corresponding to the other electric energy based on the difference between the expected power supply demand and the estimated electric energy; and supplying power to the target load based on the estimated electric energy which can be output by the current new energy and the demand value corresponding to other electric energy. The power supply method and the power supply system for the new energy power generation hybrid scene can avoid waste of energy and lack of supply of the energy.
Description
Technical Field
The invention relates to the technical field of new energy control, in particular to a power supply method and system for a new energy power generation hybrid scene.
Background
The hybrid energy system is an energy system based on the combination of solar energy, wind energy, diesel power generation, commercial power and an energy storage battery, can reduce the overall cost of the system, save fuel oil, reduce pollution, improve the power supply guarantee rate of the system, and can be used for full-load power demands of islands, base stations and the like. In the prior art, the new energy sources include solar energy, wind energy, energy storage batteries and other energy sources, the new energy sources and the common energy sources are not distinguished in power supply, and the existing power supply mode easily causes energy waste or insufficient energy source supply.
Disclosure of Invention
The invention aims to provide a power supply method and a power supply system for a new energy power generation hybrid scene, which can avoid the waste of energy and the lack of supply of the energy.
In order to achieve the above object, the present invention provides a power supply method for a new energy power generation hybrid scenario, where the power supply method for the new energy power generation hybrid scenario includes:
acquiring the estimated expected power supply requirement of the target load;
estimating the electric energy which can be output by the current new energy;
judging whether other electric energy is needed according to a comparison result between the expected power supply demand and the estimated electric energy;
when the judgment result shows that other electric energy is needed, determining a demand value corresponding to the other electric energy based on the difference between the expected power supply demand and the estimated electric energy; and
and supplying power to the target load based on the estimated electric energy which can be output by the current new energy and the demand value corresponding to other electric energy.
Preferably, the obtaining the estimated expected power supply demand of the target load comprises:
obtaining historical power supply demand data of a target load, wherein the historical power supply demand data is configured to be divided according to a preset time period threshold;
an expected power demand of the target load at the current time period is determined based on the historical power demand data.
Preferably, the estimating of the electric energy which can be output by the current new energy comprises:
establishing a new energy supply estimation model, wherein the input of the power supply estimation model is the related parameters of the new energy power supply environment, and the output is the estimated output electric energy of the new energy;
determining current estimated output electric energy corresponding to the environmental parameters of the current new energy based on the new energy supply estimation model; and
and determining the electric energy which can be output by the current new energy source based on the current estimated output electric energy and the stored electric energy of the new energy source.
Preferably, the power supply method for the new energy power generation hybrid scenario further includes:
acquiring stored electric energy of the new energy;
determining whether the stored electrical energy is greater than a preset basic backup electrical energy threshold, wherein the basic backup electrical energy threshold is configured to be equal to a preset proportion of an expected power supply demand of the target load at a previous period; and
and when the stored electric energy is larger than a preset basic standby electric energy threshold and the new energy does not supply power to the target load, controlling the new energy to store the electricity.
Preferably, the determining the demand value corresponding to the other electric energy based on the difference between the expected power demand and the estimated electric energy comprises:
calculating a difference between the expected power demand and the estimated power; and
and taking the sum of the difference value and the preset safe electric energy as a demand value corresponding to other electric energy.
In addition, the invention also provides a power supply system of a new energy power generation hybrid scene, which comprises the following components:
the expected power supply obtaining unit is used for obtaining the estimated expected power supply requirement of the target load;
the electric energy estimation unit is used for estimating the electric energy which can be output by the current new energy;
the other electric energy judging unit is used for judging whether other electric energy is needed according to a comparison result between the expected power supply demand and the estimated electric energy;
the demand value determining unit is used for determining demand values corresponding to other electric energy based on the difference between the expected power supply demand and the estimated electric energy when the judgment result shows that other electric energy is needed; and
and the power supply unit is used for supplying power to the target load based on the estimated electric energy which can be output by the current new energy and the demand value corresponding to other electric energy.
Preferably, the desired power supply acquiring unit includes:
the system comprises a historical data acquisition module, a power supply management module and a power supply management module, wherein the historical data acquisition module is used for acquiring historical power supply demand data of a target load, and the historical power supply demand data is configured to be divided according to a preset time period threshold; and
and the expected power supply requirement determining module is used for determining the expected power supply requirement of the target load in the current time period based on the historical power supply requirement data.
Preferably, the power estimating unit includes:
the model establishing module is used for establishing a new energy supply estimation model, wherein the input of the power supply estimation model is related parameters of a new energy power supply environment, and the output of the power supply estimation model is new energy estimated output electric energy;
the estimated electric energy determining module is used for determining current estimated output electric energy corresponding to the environmental parameter of the current new energy based on the new energy supply estimation model; and
and the output electric energy determining module is used for determining the electric energy which can be output by the current new energy based on the current estimated output electric energy and the stored electric energy of the new energy.
Preferably, the power supply system of the new energy power generation hybrid scenario further includes:
the energy storage obtaining unit is used for obtaining stored electric energy of the new energy;
the energy storage judging unit is used for judging whether the stored energy is larger than a preset basic standby energy threshold value, wherein the basic standby energy threshold value is configured to be equal to the expected power supply requirement of the target load at the last period of a preset proportion; and
and the new energy power storage control unit is used for controlling the new energy to store power when the stored electric energy is greater than a preset basic standby electric energy threshold and the new energy does not supply power to the target load.
Preferably, the demand value determination unit includes:
the difference value calculation module is used for calculating the difference value between the expected power supply demand and the estimated electric energy; and
and the demand value determining module is used for taking the sum of the difference value and the preset safe electric energy as the demand value corresponding to other electric energy.
According to the technical scheme, the power supply method for the new energy power generation hybrid scene can accurately estimate the corresponding demand values of other electric energy and the electric energy which can be output by the current new energy, so that the power supply of the hybrid scene is realized, the energy waste and the insufficient energy supply can be avoided, and the energy storage consumption is reduced.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart illustrating a power supply method for a hybrid scenario of new energy power generation in accordance with the present invention;
fig. 2 is a detailed flowchart of S101 of fig. 1;
fig. 3 is a detailed flowchart of S102 of fig. 1;
fig. 4 is a detailed flowchart of S104 of fig. 1; and
fig. 5 is a block diagram of a power supply system for a hybrid scenario of new energy power generation.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart of a power supply method in a new energy power generation hybrid scenario provided by the present invention, and as shown in fig. 1, the power supply method in the new energy power generation hybrid scenario includes:
s101, acquiring estimated expected power supply requirements of the target load; the target load may be a device with high power consumption, such as a base station or an island, or may be power consumption of a nominal user in a target area, power consumption of an area part with an administrative division area as a unit, or power consumption of a working condition enterprise as a unit. The expected power demand is the approximate power supply condition of the enterprise or load, different time periods may be different, and different environmental conditions may be different in different areas, for example, more power may be needed in winter or summer, and less power may be needed in other seasons.
S102, electric energy which can be output by the current new energy is estimated; as for the background art of the present invention, the current new energy includes solar energy, wind energy, etc., which can specifically obtain how much condition depends on the natural environment, for example, in rainy weather, the solar energy is less, and in special weather, the wind energy is less, based on which the electric energy that the new energy can output can be changed according to the time or the environment.
S103, judging whether other electric energy is needed according to a comparison result between the expected power supply demand and the estimated electric energy. When the demand is less than the estimated electric energy, other electric energy is not needed, the step does not belong to the consideration range of the invention, and when the demand is greater than the estimated electric energy, the electric energy is not enough, and the user demand can be met by other electric energy.
And S104, when the judgment result shows that other electric energy is needed, determining a demand value corresponding to the other electric energy based on the difference between the expected power supply demand and the estimated electric energy. Wherein, the concrete formula is:
the demand value corresponding to other electric energy is the expected power supply demand-estimated electric energy;
this formula holds only in the case of the expected power demand > estimated power, when less than this, no other power is needed, i.e. not considered.
And S105, supplying power to the target load based on the estimated electric energy which can be output by the current new energy and the demand value corresponding to other electric energy. And calculating the required value corresponding to the electric energy which can be output by the current new energy and other electric energy, and then supplying power to the target load based on the calculation result.
Preferably, as shown in fig. 2, the obtaining of the estimated expected power supply demand of the target load includes:
s201, obtaining historical power supply demand data of a target load, wherein the historical power supply demand data is configured to be divided according to a preset time period threshold; for example, in the power supply demand data of 1-3 months, wherein in the power supply demand data of 0-7 points, etc., the time period threshold value can be adjusted according to the actual situation and can be set according to the needs.
And S202, determining the expected power supply demand of the target load in the current time period based on the historical power supply demand data. For example, if the period is 1 year, the power consumption at the same time point in the last year is used as the expected power supply demand, and if the period is 1 day, the power consumption at the same time point in the last year is used as the expected power supply demand.
Preferably, as shown in fig. 3, the step S102 of estimating the electric energy that can be output by the current new energy source includes:
s301, establishing a new energy supply estimation model, wherein the input of the power supply estimation model is the related parameters of the new energy power supply environment, and the output is the estimated output electric energy of the new energy; the model is obtained by training historical data, and the data used for training is obtained by learning after the historical environmental data is collected.
S302, determining the current estimated output electric energy corresponding to the environmental parameter of the current new energy based on the new energy supply estimation model. And substituting the environmental parameters of the current new energy into the new energy supply estimation model to obtain the current estimated output electric energy.
And S303, determining the electric energy which can be output by the current new energy based on the current estimated output electric energy and the stored electric energy of the new energy.
Preferably, the power supply method for the new energy power generation hybrid scenario further includes:
acquiring stored electric energy of the new energy; the new energy can be obtained in real time or under special conditions, for example, when the new energy does not supply power to the target load.
Determining whether the stored electrical energy is greater than a preset basic backup electrical energy threshold, wherein the basic backup electrical energy threshold is configured to be equal to a preset proportion of an expected power supply demand of the target load at a previous period; and
and when the stored electric energy is larger than a preset basic standby electric energy threshold and the new energy does not supply power to the target load, controlling the new energy to store the electricity.
Preferably, as shown in fig. 4, the step S104 of determining the demand value corresponding to the other electric energy based on the difference between the expected power demand and the estimated electric energy comprises:
s401, calculating a difference value between the expected power supply demand and the estimated electric energy; and
and S402, taking the sum of the difference value and the preset safe electric energy as a demand value corresponding to other electric energy.
In addition, as shown in fig. 5, the present invention further provides a power supply system in a new energy power generation hybrid scenario, where the power supply system in the new energy power generation hybrid scenario includes:
the expected power supply obtaining unit is used for obtaining the estimated expected power supply requirement of the target load;
the electric energy estimation unit is used for estimating the electric energy which can be output by the current new energy;
the other electric energy judging unit is used for judging whether other electric energy is needed according to a comparison result between the expected power supply demand and the estimated electric energy;
the demand value determining unit is used for determining demand values corresponding to other electric energy based on the difference between the expected power supply demand and the estimated electric energy when the judgment result shows that other electric energy is needed; and
and the power supply unit is used for supplying power to the target load based on the estimated electric energy which can be output by the current new energy and the demand value corresponding to other electric energy.
Preferably, the desired power supply acquiring unit includes:
the system comprises a historical data acquisition module, a power supply management module and a power supply management module, wherein the historical data acquisition module is used for acquiring historical power supply demand data of a target load, and the historical power supply demand data is configured to be divided according to a preset time period threshold; and
and the expected power supply requirement determining module is used for determining the expected power supply requirement of the target load in the current time period based on the historical power supply requirement data.
Preferably, the power estimating unit includes:
the model establishing module is used for establishing a new energy supply estimation model, wherein the input of the power supply estimation model is related parameters of a new energy power supply environment, and the output of the power supply estimation model is new energy estimated output electric energy;
the estimated electric energy determining module is used for determining current estimated output electric energy corresponding to the environmental parameter of the current new energy based on the new energy supply estimation model; and
and the output electric energy determining module is used for determining the electric energy which can be output by the current new energy based on the current estimated output electric energy and the stored electric energy of the new energy.
Preferably, the power supply system of the new energy power generation hybrid scenario further includes:
the energy storage obtaining unit is used for obtaining stored electric energy of the new energy;
the energy storage judging unit is used for judging whether the stored energy is larger than a preset basic standby energy threshold value, wherein the basic standby energy threshold value is configured to be equal to the expected power supply requirement of the target load at the last period of a preset proportion; and
and the new energy power storage control unit is used for controlling the new energy to store power when the stored electric energy is greater than a preset basic standby electric energy threshold and the new energy does not supply power to the target load.
Preferably, the demand value determination unit includes:
the difference value calculation module is used for calculating the difference value between the expected power supply demand and the estimated electric energy; and
and the demand value determining module is used for taking the sum of the difference value and the preset safe electric energy as the demand value corresponding to other electric energy.
Compared with the prior art, the power supply system of the new energy power generation hybrid scene has the same distinguishing technical features and technical effects as the power supply method of the new energy power generation hybrid scene, and is not repeated herein.
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.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that 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 the process, method, article, or apparatus that comprises the element.
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 above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A power supply method for a new energy power generation hybrid scene is characterized by comprising the following steps:
acquiring the estimated expected power supply requirement of the target load;
estimating the electric energy which can be output by the current new energy;
judging whether other electric energy is needed according to a comparison result between the expected power supply demand and the estimated electric energy;
when the judgment result shows that other electric energy is needed, determining a demand value corresponding to the other electric energy based on the difference between the expected power supply demand and the estimated electric energy; and
and supplying power to the target load based on the estimated electric energy which can be output by the current new energy and the demand value corresponding to other electric energy.
2. The method according to claim 1, wherein the obtaining the estimated expected power demand of the target load comprises:
obtaining historical power supply demand data of a target load, wherein the historical power supply demand data is configured to be divided according to a preset time period threshold;
an expected power demand of the target load at the current time period is determined based on the historical power demand data.
3. The power supply method for the new energy power generation hybrid scene according to claim 2, wherein the estimating of the electric energy which can be output by the current new energy comprises:
establishing a new energy supply estimation model, wherein the input of the power supply estimation model is the related parameters of the new energy power supply environment, and the output is the estimated output electric energy of the new energy;
determining current estimated output electric energy corresponding to the environmental parameters of the current new energy based on the new energy supply estimation model; and
and determining the electric energy which can be output by the current new energy source based on the current estimated output electric energy and the stored electric energy of the new energy source.
4. The method according to claim 3, further comprising:
acquiring stored electric energy of the new energy;
determining whether the stored electrical energy is greater than a preset basic backup electrical energy threshold, wherein the basic backup electrical energy threshold is configured to be equal to a preset proportion of an expected power supply demand of the target load at a previous period; and
and when the stored electric energy is larger than a preset basic standby electric energy threshold and the new energy does not supply power to the target load, controlling the new energy to store the electricity.
5. The method for supplying power in a hybrid scenario of new energy generation according to claim 1, wherein the determining the demand value corresponding to other electric energy based on the difference between the expected power demand and the estimated electric energy comprises:
calculating a difference between the expected power demand and the estimated power; and
and taking the sum of the difference value and the preset safe electric energy as a demand value corresponding to other electric energy.
6. The power supply system for the new energy power generation hybrid scene is characterized by comprising the following components:
the expected power supply obtaining unit is used for obtaining the estimated expected power supply requirement of the target load;
the electric energy estimation unit is used for estimating the electric energy which can be output by the current new energy;
the other electric energy judging unit is used for judging whether other electric energy is needed according to a comparison result between the expected power supply demand and the estimated electric energy;
the demand value determining unit is used for determining demand values corresponding to other electric energy based on the difference between the expected power supply demand and the estimated electric energy when the judgment result shows that other electric energy is needed; and
and the power supply unit is used for supplying power to the target load based on the estimated electric energy which can be output by the current new energy and the demand value corresponding to other electric energy.
7. The power supply system of the hybrid new energy generation scenario as claimed in claim 6, wherein the expected power supply obtaining unit comprises:
the system comprises a historical data acquisition module, a power supply management module and a power supply management module, wherein the historical data acquisition module is used for acquiring historical power supply demand data of a target load, and the historical power supply demand data is configured to be divided according to a preset time period threshold; and
and the expected power supply requirement determining module is used for determining the expected power supply requirement of the target load in the current time period based on the historical power supply requirement data.
8. The power supply system of the hybrid new energy generation scenario as claimed in claim 7, wherein the power estimation unit comprises:
the model establishing module is used for establishing a new energy supply estimation model, wherein the input of the power supply estimation model is related parameters of a new energy power supply environment, and the output of the power supply estimation model is new energy estimated output electric energy;
the estimated electric energy determining module is used for determining current estimated output electric energy corresponding to the environmental parameter of the current new energy based on the new energy supply estimation model; and
and the output electric energy determining module is used for determining the electric energy which can be output by the current new energy based on the current estimated output electric energy and the stored electric energy of the new energy.
9. The power supply system of the hybrid new energy power generation scenario of claim 7, further comprising:
the energy storage obtaining unit is used for obtaining stored electric energy of the new energy;
the energy storage judging unit is used for judging whether the stored energy is larger than a preset basic standby energy threshold value, wherein the basic standby energy threshold value is configured to be equal to the expected power supply requirement of the target load at the last period of a preset proportion; and
and the new energy power storage control unit is used for controlling the new energy to store power when the stored electric energy is greater than a preset basic standby electric energy threshold and the new energy does not supply power to the target load.
10. The power supply system of the new energy power generation hybrid scenario as claimed in claim 6, wherein the demand value determination unit comprises:
the difference value calculation module is used for calculating the difference value between the expected power supply demand and the estimated electric energy; and
and the demand value determining module is used for taking the sum of the difference value and the preset safe electric energy as the demand value corresponding to other electric energy.
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| CN116581798A (en) * | 2023-03-22 | 2023-08-11 | 中国中建设计研究院有限公司 | Energy supply display control system of internet of things based on bay window fixing structure |
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