CN113947501A - Method and system for sharing power of capacity degree of power grid at user side - Google Patents
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Abstract
The invention relates to a method and a system for sharing power of capacity degree of a power grid at a user side, wherein the method comprises the following steps: obtaining effective capacity data, system required capacity, unit capacity compensation electricity price data and total social electricity consumption in a preset time period of each unit; determining the compensation capacity of each unit according to the effective capacity data and the system required capacity; determining the total compensation amount of the unit capacity according to the compensation capacity of each unit and the unit capacity compensation electricity price data; and determining a capacity degree electricity sharing result of the power grid at the user side according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period. The method is applicable to the method for sharing the capacity electricity of the user side, so that the sharing result of the capacity electricity of the user side is accurate.
Description
Technical Field
The invention relates to the technical field of power grid capacity electricity sharing, in particular to a user side power grid capacity electricity sharing method and system.
Background
The capacity electricity is divided into capacity electricity charges which are charged to the user in unit of yuan/kWh, and the user needs to bear the energy electricity charges and the capacity electricity charges simultaneously every one-degree electricity in the mode.
At present, the method of obtaining the proportion of the effective capacity of the market unit to the total effective capacity of the market unit to compensate the capacity electric charge for the unit is adopted to carry out the electric sharing of the capacity of the power grid. However, the related art lacks a method suitable for user-side capacity electricity allocation, so that the related art has a problem that a user-side capacity electricity allocation result is inaccurate.
Disclosure of Invention
In view of this, a method and a system for apportioning the capacity and the electricity of the power grid at the user side are provided to solve the problem of inaccurate apportioning result of the capacity and the electricity of the power grid at the user side in the related art.
The invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for apportioning capacity and electricity of a power grid at a user side, including:
obtaining effective capacity data, system required capacity, unit capacity compensation electricity price data and total social electricity consumption in a preset time period of each unit;
determining the compensation capacity of each unit according to the effective capacity data and the system required capacity;
determining the total compensation amount of the unit capacity according to the compensation capacity of each unit and the unit capacity compensation electricity price data;
and determining a capacity degree electricity sharing result of the power grid at the user side according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period.
Preferably, the determining the compensation capacity of each unit according to the effective capacity data and the system demand capacity includes:
determining the effective capacity of each unit according to the effective capacity data;
determining a system effective capacity factor according to the system required capacity and the effective capacity of each unit;
and determining the compensation capacity of each unit according to the effective capacity of each unit and the system effective capacity factor.
Preferably, the units comprise a first unit and a second unit;
the first unit only supplies power to a target ground;
the second unit supplies power to a target ground and other places except the target ground.
Preferably, the first machine component is a traditional machine set and a renewable energy machine set;
when the first unit is the traditional unit, the effective capacity data of the first unit comprises a maintenance shutdown coefficient, an accident shutdown coefficient, installed capacity and plant power rate;
when the first unit is a renewable energy unit, the effective capacity data of the first unit comprises annual energy production;
the second unit is divided into a traditional unit and a renewable energy unit;
when the second unit is the traditional unit, the effective capacity data of the second unit comprises a maintenance shutdown coefficient, an accident shutdown coefficient, an installed capacity, a plant power rate, a preset time period target power supply amount and a preset time period total power supply amount;
and when the second unit is a renewable energy unit, the effective capacity data of the second unit comprises annual energy generation amount, total power supply amount in a preset time period and target ground power supply amount in the preset time period.
Preferably, the determining the total compensation amount of the unit capacity according to the compensation capacity of each unit and the unit capacity compensation electricity price data includes:
summing the compensation capacity of each unit to obtain the sum of the compensation capacity of all the units;
determining the unit capacity compensation electricity price according to the unit capacity compensation electricity price data;
and multiplying the total compensation capacity of all the units by the unit capacity compensation electricity price to obtain the total compensation capacity of the units.
Preferably, the determining the power sharing result of the power grid capacity degree at the user side according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period includes:
and dividing the total compensation amount of the unit capacity by the total social electricity consumption in the preset time period to obtain the capacity and electricity sharing result of the power grid at the user side.
Preferably, the traditional unit comprises a coal machine, a combustion engine and a nuclear power unit;
the renewable energy source unit comprises a wind turbine generator, a photovoltaic generator and a hydroelectric generator.
In a second aspect, the present invention further provides a system for apportioning capacity and electricity of a power grid on a user side, including:
the data acquisition module is used for acquiring effective capacity data, system required capacity, unit capacity compensation electricity price data and total electricity consumption of the whole society in a preset time period of each unit;
the compensation capacity determining module of each unit is used for determining the compensation capacity of each unit according to the effective capacity data and the system required capacity;
the unit capacity compensation total amount determining module is used for determining the unit capacity compensation total amount according to the unit compensation capacity and the unit capacity compensation electricity price data;
and the power distribution result determination module of the power grid capacity of the user side is used for determining the power distribution result of the power grid capacity of the user side according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period.
By adopting the technical scheme, the invention discloses a method for sharing the capacity and the electricity of a power grid at a user side, which comprises the following steps: obtaining effective capacity data, system required capacity, unit capacity compensation electricity price data and total social electricity consumption in a preset time period of each unit; determining the compensation capacity of each unit according to the effective capacity data and the system required capacity; determining the total compensation amount of the unit capacity according to the compensation capacity of each unit and the unit capacity compensation electricity price data; and determining a capacity degree electricity sharing result of the power grid at the user side according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period. Based on this, this application can be applicable to the method of user side capacity degree electricity sharing for the user side capacity degree electricity sharing result of this application is accurate.
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 schematic flow chart of a method for apportioning capacity and power of a power grid on a user side according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electric power sharing system for capacity of a power grid on a user side according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a schematic flow chart of a method for apportioning capacity and power of a power grid on a user side according to an embodiment of the present invention. As shown in fig. 1, the method for apportioning the capacity of the power grid on the user side according to this embodiment includes:
s101, obtaining effective capacity data, system required capacity, unit capacity compensation electricity price data and total electricity consumption of the whole society in a preset time period of each unit.
Specifically, the effective capacity of each unit can be determined according to the effective capacity data of each unit. The effective capacity can objectively reflect the actual contribution of the unit to the maximum capacity requirement of the power system. The system demand capacity can be determined according to the predicted target maximum load and the standby demand in the preset time period, and is used for supporting the system to determine the system effective capacity factor. The system effective capacity factor can reflect the contribution degree of the unit to the capacity requirement of the power system. The unit capacity compensation electricity price is the unit capacity cost of the marginal generator set meeting the system load requirement, namely the annual unit investment cost of the marginal generator set. The total power consumption of the whole society in the preset time period is statistical data and is obtained according to related statistical results.
And S102, determining the compensation capacity of each unit according to the effective capacity data and the system demand capacity.
In detail, firstly, the effective capacity of each unit is determined according to the effective capacity data. Then, the system effective capacity factor is determined according to the system required capacity. And finally, multiplying the effective capacity of the unit by the effective capacity factor of the system to obtain the compensation capacity of the unit, and determining the compensation capacity of all the units in the same way.
That is, the calculation formula of the unit compensation capacity is as follows:
compensation capacity of the unit is the effective capacity of the unit
Wherein K is the effective capacity factor of the system.
S103, determining the total compensation amount of the unit capacity according to the compensation capacity of each unit and the unit capacity compensation electricity price data.
Specifically, the unit capacity compensation electricity price is determined according to the unit capacity compensation electricity price data, and the compensation capacities of all the units are added to obtain the sum of the compensation capacities of all the units. And then, multiplying the compensation capacity sum of all the units by the unit capacity compensation electricity price to obtain the unit capacity compensation sum. That is, the calculation formula of the total compensation amount of the unit capacity is as follows:
the total compensation capacity sum of the unit is the sum of the compensation capacity of all the units and the unit capacity compensation electricity price
And S104, determining a capacity degree electricity sharing result of the power grid at the user side according to the total compensation amount of the unit capacity and the total electricity consumption of the whole society in the preset time period.
Specifically, the capacity and electricity sharing result of the power grid at the user side is calculated according to the following calculation formula:
and (3) the capacity and electricity sharing result of the power grid at the user side is the total amount of the unit capacity compensation and the total social electricity consumption in a preset time period.
According to the technical scheme, the method for sharing the capacity and the electricity of the power grid at the user side comprises the following steps: obtaining effective capacity data, system required capacity, unit capacity compensation electricity price data and total social electricity consumption in a preset time period of each unit; determining the compensation capacity of each unit according to the effective capacity data and the system required capacity; determining the total compensation amount of the unit capacity according to the compensation capacity of each unit and the unit capacity compensation electricity price data; and determining a capacity degree electricity sharing result of the power grid at the user side according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period. Based on this, the present embodiment can be applied to the method for apportioning the capacity of the user side to the electricity, so that the result of apportioning the capacity of the user side to the electricity is accurate.
Preferably, the determining the compensation capacity of each unit according to the effective capacity data and the system demand capacity includes:
determining the effective capacity of each unit according to the effective capacity data;
determining a system effective capacity factor according to the system required capacity and the effective capacity of each unit;
and determining the compensation capacity of each unit according to the effective capacity of each unit and the system effective capacity factor.
Specifically, the unit comprises a first unit and a second unit.
Wherein the first unit only supplies power to a target ground; the second unit supplies power to a target ground and other places except the target ground. For example, the first unit is a unit that supplies power only to the target province, and the second unit supplies power to both the target province and other provinces. For the second unit, since the other provinces undertake user compensation when supplying power to the other provinces except the target province, for the second unit, the embodiment only needs to consider the power supplied to the target province.
The first machine component comprises a traditional machine set and a renewable energy machine set; the traditional units comprise a coal machine, a gas turbine and a nuclear power unit, and the renewable energy source unit comprises a wind power unit, a photovoltaic unit and a hydroelectric unit.
When the first unit is the traditional unit, the effective capacity data of the first unit comprises a maintenance shutdown coefficient, an accident shutdown coefficient, installed capacity and plant power rate; in this case, the calculation formula of the effective capacity of the first unit is as follows:
the effective capacity of the traditional first unit is (1-maintenance shutdown coefficient-accident shutdown coefficient) installed capacity (1-plant power consumption rate)
When the first unit is a renewable energy unit, the effective capacity data of the first unit comprises annual energy production. In this case, the calculation formula of the effective capacity of the first unit is as follows:
the effective capacity of the first renewable energy unit is equal to the total generated energy in a preset time period/the duration corresponding to the preset time period
It should be noted that the unit of the duration corresponding to the preset time period is an hour. The preset time period may be freely set by the user as required, for example, the preset time period may be one year, in which case, the time duration corresponding to the preset time period is 8760 hours.
The second unit is divided into a traditional unit and a renewable energy unit.
When the second unit is the traditional unit, the effective capacity data of the second unit comprises a maintenance shutdown coefficient, an accident shutdown coefficient, an installed capacity, a plant power rate, a preset time period target power supply amount and a preset time period total power supply amount; in this case, the calculation formula of the effective capacity of the second unit is as follows:
the effective capacity of the traditional second unit (the unit is supplied with the target electric quantity in the preset time period/the total supply quantity in the preset time period) 1-maintenance shutdown coefficient-accident shutdown coefficient) installed capacity 1-plant power rate
And when the second unit is a renewable energy unit, the effective capacity data of the second unit comprises annual power generation amount, total power generation amount in a preset time period and target ground power supply amount in the preset time period. In this case, the calculation formula of the effective capacity of the second unit is as follows:
effective capacity of the renewable energy type second unit (unit preset time period target ground electric quantity/unit preset time period total electric quantity) ((preset time period total electric quantity/duration corresponding to preset time period))
The system effective capacity factor is calculated according to the following calculation formula:
k is the system demand capacity/(the sum of the effective capacities of all the first units + the sum of the effective capacities of all the second units corresponding to the target ground supply capacity)
The system demand capacity is the sum of the predicted peak load corresponding to the preset time period and the standby demand of the preset time period.
Preferably, the determining the total compensation amount of the unit capacity according to the compensation capacity of each unit and the unit capacity compensation electricity price data includes:
summing the compensation capacity of each unit to obtain the sum of the compensation capacity of all the units;
determining unit capacity compensation electricity price according to the unit capacity compensation electricity price data;
and multiplying the total compensation capacity of all the units by the unit capacity compensation electricity price to obtain the total compensation capacity of the units.
In detail, the unit capacity compensation electricity price is calculated according to the following calculation formula:
accordingly, the unit capacity compensation electricity price data includes unit fixed investment and discount rate.
Wherein, the pasting rate can be 7%.
Based on a general inventive concept, the invention also provides a system for apportioning the capacity and the electricity of the power grid at the user side. Fig. 2 is a schematic structural diagram of a system for apportioning capacity and power of a power grid at a user side according to an embodiment of the present invention, and as shown in fig. 2, the system for apportioning capacity and power of a power grid at a user side according to the embodiment includes: the system comprises a data acquisition module 21, a compensation capacity determination module 22 of each unit, a total compensation amount determination module 23 of the unit capacity, and a capacity degree and electricity sharing result determination module 24 of a power grid at a user side.
The data acquisition module 21 is configured to acquire effective capacity data, system required capacity, unit capacity compensation electricity price data, and total electricity consumption of the whole society in a preset time period of each unit; the compensation capacity determining module 22 of each unit is configured to determine the compensation capacity of each unit according to the effective capacity data and the system required capacity; the unit capacity compensation total amount determining module 23 is configured to determine a unit capacity compensation total amount according to each unit compensation capacity and the unit capacity compensation electricity price data; and the user side power grid capacity electricity allocation result determination module 24 is used for determining a user side power grid capacity electricity allocation result according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period.
It should be noted that the present embodiment and the above embodiments are based on a general inventive concept, and have the same or corresponding implementation processes and beneficial effects, which are not described herein again.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow diagrams or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. A method for sharing power of capacity of a user side power grid is characterized by comprising the following steps:
obtaining effective capacity data, system required capacity, unit capacity compensation electricity price data and total social electricity consumption in a preset time period of each unit;
determining the compensation capacity of each unit according to the effective capacity data and the system required capacity;
determining the total compensation amount of the unit capacity according to the compensation capacity of each unit and the unit capacity compensation electricity price data;
and determining a capacity degree electricity sharing result of the power grid at the user side according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period.
2. The method for apportioning the capacity and the electricity of the power grid at the user side according to claim 1, wherein the step of determining the compensation capacity of each unit according to the effective capacity data and the system demand capacity comprises the following steps:
determining the effective capacity of each unit according to the effective capacity data;
determining a system effective capacity factor according to the system required capacity and the effective capacity of each unit;
and determining the compensation capacity of each unit according to the effective capacity of each unit and the system effective capacity factor.
3. The method for apportioning the capacity electricity of the user-side power grid according to claim 2, wherein the units comprise a first unit and a second unit;
the first unit only supplies power to a target ground;
the second unit supplies power to a target ground and other places except the target ground.
4. The method for apportioning the capacity and the electricity of the user-side power grid according to claim 3, wherein the first machine component is a traditional machine set and a renewable energy machine set;
when the first unit is the traditional unit, the effective capacity data of the first unit comprises a maintenance shutdown coefficient, an accident shutdown coefficient, installed capacity and plant power rate;
when the first unit is a renewable energy unit, the effective capacity data of the first unit comprises annual energy production;
the second unit is divided into a traditional unit and a renewable energy unit;
when the second unit is the traditional unit, the effective capacity data of the second unit comprises a maintenance shutdown coefficient, an accident shutdown coefficient, an installed capacity, a plant power rate, a preset time period target power supply amount and a preset time period total power supply amount;
and when the second unit is a renewable energy unit, the effective capacity data of the second unit comprises annual energy generation amount, total power supply amount in a preset time period and target ground power supply amount in the preset time period.
5. The method for apportioning the capacity of the power grid to the user side according to claim 4, wherein the step of determining the total compensation capacity of the unit according to the compensation capacity of each unit and the unit capacity compensation price data comprises the following steps:
summing the compensation capacity of each unit to obtain the sum of the compensation capacity of all the units;
determining unit capacity compensation electricity price according to the unit capacity compensation electricity price data;
and multiplying the total compensation capacity of all the units by the unit capacity compensation electricity price to obtain the total compensation capacity of the units.
6. The method for apportioning the capacity and the electricity of the power grid at the user side according to claim 1, wherein the step of determining the apportioned result of the capacity and the electricity of the power grid at the user side according to the total compensation amount of the unit capacity and the total electricity consumption of the whole society in the preset time period comprises the following steps:
and dividing the total compensation amount of the unit capacity by the total social electricity consumption in the preset time period to obtain the capacity and electricity sharing result of the power grid at the user side.
7. The method for apportioning the capacity and the electricity of the user-side power grid according to claim 4, wherein the conventional units comprise a coal machine, a gas turbine and a nuclear power unit;
the renewable energy source unit comprises a wind turbine generator, a photovoltaic generator and a hydroelectric generator.
8. A customer side grid capacity electricity sharing system, comprising:
the data acquisition module is used for acquiring effective capacity data, system required capacity, unit capacity compensation electricity price data and total electricity consumption of the whole society in a preset time period of each unit;
the compensation capacity determining module of each unit is used for determining the compensation capacity of each unit according to the effective capacity data and the system required capacity;
the unit capacity compensation total amount determining module is used for determining the unit capacity compensation total amount according to the unit compensation capacity and the unit capacity compensation electricity price data;
and the power distribution result determination module of the power grid capacity of the user side is used for determining the power distribution result of the power grid capacity of the user side according to the total compensation amount of the unit capacity and the total power consumption of the whole society in the preset time period.
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