CN116051163A - Method and device for determining electricity cost of electric power system, electronic equipment and medium - Google Patents
Method and device for determining electricity cost of electric power system, electronic equipment and medium Download PDFInfo
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Abstract
The disclosure provides a method, a device, electronic equipment and a storage medium for determining the electricity metering cost of an electric power system. The power system includes: the method comprises the following steps of: the method comprises the steps of obtaining successive photovoltaic power generation amount of a photovoltaic generator set in each charging and discharging sequence and successive power consumption amount of an electric system, determining a power consumption gap and a power generation surplus in each charging and discharging sequence according to the successive photovoltaic power generation amount and the successive power consumption amount, determining time-by-time diesel power generation amount corresponding to a diesel generator set in the electric system according to the power consumption gap and the power generation surplus, and determining target electricity cost of the electric system according to the time-by-time diesel power generation amount and the time-by-time photovoltaic power generation amount.
Description
Technical Field
The disclosure relates to the technical field of new energy power generation, in particular to a method, a device, electronic equipment and a medium for determining the electricity-generating cost of an electric power system.
Background
In the off-grid state, the photovoltaic generator set, the energy storage unit and the diesel generator set are required to provide stable power for connecting loads (such as mining equipment), and in this case, the photovoltaic generated energy, the photovoltaic abandoned electric quantity, the energy storage and charge quantity, the energy storage and discharge quantity, the peak-load electric quantity of the diesel generator and the oil consumption quantity determine the electricity metering cost of the electric power system, so how to determine the electricity metering cost of the electric power system, so that the low-electricity-cost operation of the electric power system becomes a problem to be solved urgently.
Disclosure of Invention
The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art.
Therefore, an object of the present disclosure is to provide a method, an apparatus, an electronic device, and a storage medium for determining a power cost of a power system, which can accurately determine the power cost of the power system, so that the power system can operate at an optimal power cost in an off-grid state.
An embodiment of the first aspect of the present disclosure provides a method for determining a power cost of a power system, where the power system includes: the method comprises the following steps of: acquiring successive photovoltaic power generation quantity of the photovoltaic generator set and successive power consumption quantity of the power system in each charging and discharging sequence; determining a power consumption gap and a power generation surplus in each charging and discharging sequence according to the sequential photovoltaic power generation quantity and the sequential power consumption; determining the corresponding time-by-time diesel generating capacity of a diesel generating set in the power system according to the electricity consumption gap and the generating capacity surplus; and determining the target electricity cost of the power system according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity.
According to the electricity consumption cost determining method of the electric power system, which is provided by the embodiment of the first aspect of the disclosure, the electricity consumption gap and the electricity consumption surplus of each charging and discharging sequence are determined according to the successive photovoltaic electricity generation quantity of the photovoltaic generator set in each charging and discharging sequence and the successive electricity consumption of the electric power system, the time-by-time diesel electricity generation quantity corresponding to the diesel generator set in the electric power system is determined according to the electricity consumption gap and the electricity consumption surplus, and the target electricity cost of the electric power system is determined according to the time-by-time diesel electricity generation quantity and the time-by-time photovoltaic electricity generation quantity.
An embodiment of a second aspect of the present disclosure provides a power system power cost determining apparatus, the power system including: photovoltaic generating set, diesel generating set, energy storage unit and connection load, the device includes: the acquisition module is used for acquiring successive photovoltaic power generation capacity of the photovoltaic generator set and successive electricity consumption of the power system in each charging and discharging sequence; the first determining module is used for determining a power consumption gap and a power generation surplus in each charging and discharging sequence according to the sequential photovoltaic power generation quantity and the sequential power consumption; the second determining module is used for determining the time-by-time diesel generating capacity corresponding to the diesel generating set in the power system according to the electricity consumption gap and the generating capacity surplus; and the third determining module is used for determining the target electricity cost of the electric power system according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity.
According to the electricity consumption cost determining device of the electric power system, the successive photovoltaic power generation amount of the photovoltaic power generator sets in each charging and discharging sequence and the successive power consumption amount of the electric power system are obtained, the power consumption gap and the power generation surplus in each charging and discharging sequence are determined according to the successive photovoltaic power generation amount and the successive power consumption amount, the time-by-time diesel power generation amount corresponding to the diesel power generator sets in the electric power system is determined according to the power consumption gap and the power generation surplus, and the target electricity cost of the electric power system is determined according to the time-by-time diesel power generation amount and the time-by-time photovoltaic power generation amount.
An embodiment of a third aspect of the present disclosure provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor executes the program to implement a method for determining a power cost of a power system according to an embodiment of the first aspect of the present disclosure.
An embodiment of a fourth aspect of the present disclosure proposes a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method for determining a power cost of a power system as proposed by an embodiment of the first aspect of the present disclosure.
A fifth aspect embodiment of the present disclosure proposes a computer program product which, when executed by an instruction processor in the computer program product, performs a method for determining a power cost of a power system as proposed by the first aspect embodiment of the present disclosure.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of a method for determining the electrical cost of an electrical power system according to an embodiment of the disclosure;
FIG. 2 is a flow chart of a method for determining the electrical cost of an electrical power system according to another embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a device for determining the electrical cost of an electrical power system according to an embodiment of the disclosure;
fig. 4 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure.
Detailed Description
Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present disclosure and are not to be construed as limiting the present disclosure. On the contrary, the embodiments of the disclosure include all alternatives, modifications, and equivalents as may be included within the spirit and scope of the appended claims.
Fig. 1 is a flow chart of a method for determining the electrical cost of an electrical power system according to an embodiment of the disclosure.
It should be noted that, the execution body of the power system power cost determining method of the present embodiment is a power system power cost determining device, which may be implemented in a software and/or hardware manner, and the device may be configured in an electronic device, where the electronic device may include, but is not limited to, a terminal, a server, and the like.
As shown in fig. 1, the electrical cost determining method of the electrical power system includes:
s101: and acquiring successive photovoltaic power generation quantity of the photovoltaic generator set and successive power consumption quantity of the power system in each charging and discharging sequence.
Wherein the power system includes: photovoltaic generating set, diesel generating set, energy storage unit and connection load.
One charging and discharging sequence comprises one charging and one discharging of the energy storage unit. The energy storage unit can form energy exchange with other power generation modes, external power grids and the like, and the energy storage unit is not limited in this regard.
The successive sequence photovoltaic power generation capacity corresponding to the photovoltaic power generator set can be the electric quantity which can be generated by the photovoltaic power generator set in a discharging sequence.
The successive power consumption corresponding to the power system may be, for example, a power required by the power system in a discharging order, which is not limited.
In some embodiments, the first attribute information and the environmental parameter corresponding to the photovoltaic generator set may be acquired first, and then the order-by-order photovoltaic power generation amount may be determined according to the attribute information and the environmental parameter.
The first attribute information may include scale, position information, etc. of the photovoltaic generator set. The environmental data may be meteorological data of the position of the photovoltaic generator set, which is not limited.
Specifically, software such as PVsyst and the like can be adopted to simulate successive photovoltaic power generation capacity corresponding to the photovoltaic power generator set.
According to the embodiment of the disclosure, after the sequential photovoltaic power generation amount of the photovoltaic power generator set is obtained, historical meteorological data can be combined to obtain the sequential power consumption amount of the power system, specifically, after the sequential photovoltaic power generation amount of the photovoltaic power generator set is obtained, the historical meteorological data is combined to simulate the sequential power consumption amount of the power system, and the method is not limited.
S102: and determining a power consumption gap and a power generation surplus in each charging and discharging sequence according to the sequential photovoltaic power generation quantity and the sequential power consumption.
According to the embodiment of the disclosure, after the sequential photovoltaic power generation amount of the photovoltaic generator set and the sequential power consumption amount of the power system in each charging and discharging sequence are obtained, the power consumption amount gap and the power generation surplus in each charging and discharging sequence can be determined according to the sequential photovoltaic power generation amount and the sequential power consumption amount.
Alternatively, in some embodiments, the determining the power consumption gap and the power consumption surplus in each charging and discharging order according to the sequential photovoltaic power generation amount and the sequential power consumption amount may be determining a first difference between the sequential photovoltaic power generation amount and the sequential power consumption amount as the power consumption surplus when the sequential photovoltaic power generation amount is greater than the sequential power consumption amount, and determining a second difference between the sequential power generation amount and the sequential photovoltaic power generation amount as the power consumption gap when the sequential photovoltaic power generation amount is less than the sequential power consumption amount.
That is, in the embodiment of the present disclosure, the sequential photovoltaic power generation amount and the sequential power consumption amount in the primary charge-discharge sequence may be obtained, when the sequential photovoltaic power generation amount is greater than the sequential power consumption amount, the first difference between the sequential photovoltaic power generation amount and the sequential power consumption amount is determined to be the surplus of the power generation amount, and when the sequential photovoltaic power generation amount is less than the sequential power consumption amount, the second difference between the sequential power consumption amount and the sequential photovoltaic power generation amount is determined to be the power consumption amount gap, which is not limited.
That is, in the primary discharge sequence, if:
when Epv (T) -Eu (T) >0, epv (T) -Eu (T) =eelse_out (T);
when Epv (T) -Eu (T) <0, eu (T) -Epv (T) =eelse_bed (T);
wherein Epv (T) is the successive photovoltaic power generation amount, eu (T) is the successive power consumption amount, T is the charge-discharge order, eelse_out (T) is the surplus of the power generation amount, and Eelse_bed (T) is the power consumption gap. At the moment, the surplus generated energy is photovoltaic power discarding quantity.
S103: and determining the corresponding time-by-time diesel generating capacity of the diesel generating set in the power system according to the electricity consumption gap and the generating capacity surplus.
The time-by-time diesel generating capacity corresponding to the diesel generating set can be the electric quantity which can be generated by the diesel generating set in each hour.
In the implementation of the disclosure, after the electricity consumption gap and the electricity generation surplus in each charging and discharging sequence are determined according to the sequential photovoltaic electricity generation quantity and the sequential electricity consumption, the time-by-time diesel electricity generation quantity corresponding to the diesel generator set in the electric power system can be determined according to the electricity consumption gap and the electricity generation surplus.
In the embodiment of the disclosure, the time-by-time diesel generating capacity can influence the electricity consumption gap and the generating capacity surplus, namely the time-by-time diesel generating capacity, and a certain association relationship can be arranged between the electricity consumption gap and the generating capacity surplus, so that the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system can be determined according to the association relationship by combining the electricity consumption gap and the generating capacity surplus, and the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system is not limited.
S104: and determining the target electricity cost of the power system according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity.
The target electricity cost may be, for example, an optimal electricity cost, i.e., a minimum electricity cost, of the power system, which is not limited.
According to the embodiment of the disclosure, after the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system is determined according to the electricity consumption gap and the generating capacity surplus, the lowest electricity cost of the electric power system can be determined according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity, and the determined lowest electricity cost is taken as the target electricity cost, so that the method is not limited.
In some embodiments, the target electricity cost of the electric power system is determined according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity, which can be the time-by-time diesel generating capacity, the time-by-time photovoltaic generating capacity and the historical electricity cost in the combined historical data, and the electricity cost of the current electric power system is simulated to determine the target electricity cost without limitation.
Or, the target electricity cost of the electric power system is determined according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity, or after the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity under the current moment are determined, the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity under the current moment are determined to be adjusted so that the electricity cost of the next moment is lower, and the electricity cost of the next moment is determined to be the target electricity cost, so that the method is not limited.
In this embodiment, through obtaining the successive order photovoltaic power generation amount of the photovoltaic generator set and the successive order power consumption amount of the electric power system in each charging and discharging order, and according to the successive order photovoltaic power generation amount and the successive order power consumption amount, the power consumption amount gap and the power generation amount surplus in each charging and discharging order are determined, then according to the power consumption amount gap and the power generation amount surplus, the time-by-time diesel power generation amount corresponding to the diesel generator set in the electric power system is determined, and according to the time-by-time diesel power generation amount and the time-by-time photovoltaic power generation amount, the target electricity cost of the electric power system is determined, through the present disclosure, the electricity cost of the electric power system can be accurately determined, so that the electric power system can run at the optimal electricity cost under off-grid state.
Fig. 2 is a flow chart of a method for determining the electrical cost of an electrical power system according to another embodiment of the disclosure.
As shown in fig. 2, the electrical cost determining method of the electrical power system includes:
s201: and acquiring successive photovoltaic power generation quantity of the photovoltaic generator set and successive power consumption quantity of the power system in each charging and discharging sequence.
S202: and determining a power consumption gap and a power generation surplus in each charging and discharging sequence according to the sequential photovoltaic power generation quantity and the sequential power consumption.
The descriptions of S201 to S202 may be specifically referred to the above embodiments, and are not repeated herein.
S203: and determining the corresponding time-by-time diesel generating capacity of the diesel generating set in the power system according to the electricity consumption gap and the generating capacity surplus.
Optionally, in some embodiments, determining the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system according to the electricity consumption gap and the generating capacity surplus may be determining a first association relationship between the electricity consumption gap, the time-by-time diesel generating capacity of the diesel generating set and the time-by-time energy storage charging capacity of the energy storage unit in a charging and discharging sequence, determining a second association relationship between the time-by-time energy storage charging capacity and the time-by-time photovoltaic power discarding capacity of the photovoltaic generating set in a charging and discharging sequence, and determining the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system according to the electricity consumption gap, the generating capacity surplus, the first association relationship and the second association relationship.
In one charge-discharge sequence, the first association relationship indicates that the electricity consumption gap is the sum of the sequential diesel generating capacity of the diesel generator set and the sequential energy storage charging capacity of the energy storage unit in each charge-discharge sequence, and the method can be specifically shown as the following formula:
DOD％μEc(T)+Epk(T)＝Eelse_need(T)(1)；
in one charge-discharge sequence, the second association relationship indicates that the surplus of the generated energy is the sum of the successive energy storage charge quantity and the successive photovoltaic power discarding quantity of the photovoltaic generator set in each charge-discharge sequence, and the sum can be specifically shown as the following formula:
Eelse_out(T)＝Ec(T)+Epv_else(T)(2)；
wherein, for every hour in the power system, there are:
Eelse_need(t)＝DOD％μEc(t)+Epk(t)(3)；
Eelse_out(t)＝Epv(t)-Epv_else(t)(4)。
wherein Epv (T) is the successive photovoltaic power generation;
eu (T) is the successive order electricity consumption, DOD% is the energy storage depth of discharge of the energy storage generator set, ec (T) is the successive order energy storage charge of the energy storage generator set, μec (T) is the successive order energy storage discharge of the energy storage generator set, μ is the energy storage conversion efficiency, epv _else (T) is the successive order photovoltaic power discarding capacity of the photovoltaic generator set, epk (T) is the successive order diesel generating capacity of the diesel generator set, ec (T) is the time-by-time energy storage charge, μec (T) is the time-by-time energy storage discharge, and Epk (T) is the time-by-time diesel generating capacity.
The (1), (2), (3) and (4) can be combined to solve the time-by-time diesel generating capacity, and the method is not limited.
S204: and determining annual diesel generating capacity of the diesel generating set according to the time-by-time diesel generating capacity.
Among them, annual energy production of a diesel generator set may be referred to as annual diesel energy production.
In the embodiment of the disclosure, the annual diesel generating capacity of the diesel generating set is determined according to the time-by-time diesel generating capacity, and the sum of annual time-by-time diesel generating capacities of the diesel generating set can be determined as the annual diesel generating capacity.
S205: and determining annual photovoltaic power generation capacity of the photovoltaic motor unit according to the time-by-time photovoltaic power generation capacity.
The annual energy production of the photovoltaic generator set can be called annual photovoltaic energy production.
In the embodiment of the disclosure, the annual photovoltaic power generation capacity of the photovoltaic power generation unit is determined according to the time-by-time photovoltaic power generation capacity, and the sum of the annual time-by-time photovoltaic power generation capacities of the photovoltaic power generation unit can be determined as the annual photovoltaic power generation capacity.
S206: and determining the target scale electricity cost of the electric power system according to the annual diesel generating capacity and the annual photovoltaic generating capacity.
In the embodiment of the disclosure, in determining the sum of the annual diesel power generation amount and the annual photovoltaic power generation amount, the annual electricity cost of the electric power system at the nth year may be determined as the target-scale electricity cost according to the annual diesel power generation amount and the annual photovoltaic power generation amount.
Alternatively, in some embodiments, determining the targeted electricity cost of the power system based on annual diesel power production and annual photovoltaic power production may be obtaining a plurality of initial investment data for the power system, and solving a power cost model based on annual diesel power production, annual photovoltaic power production, and the plurality of initial investment data to obtain the targeted electricity cost.
The initial investment data may be, for example, other investment costs for the power system, such as labor and welfare costs, repair costs, material costs, etc., without limitation.
That is, in an embodiment of the present disclosure, the electricity cost model may be solved according to annual diesel power generation, annual photovoltaic power generation and a plurality of initial investment data to obtain an annual electricity cost at the nth year of the electric power system, as follows:
wherein, the static initial investment C of the system 0 ＝Cpv+Cpk+Cc；I n Value-added tax deduction for the nth item if
Less than the deductible tax Td, annual project value-added tax deduction I n ＝T no tax ×E n ×R vat The method comprises the steps of carrying out a first treatment on the surface of the If I n According to the addition of time sequences->
For the first time greater than the deductible tax Td +.>
System remainder V R =cpv+cpk+cc+ir-Td; mn is the running cost of the nth year (sum of annual labor and welfare fees, repair fees, material fees, other fees and annual diesel fuel consumption expenditure); overall power generation of the nth year power system: yn=epv (n) +epk (n) -Epv _else (T).
Wherein, (Levelised Cost of Electricity, LCOE) is target electricity cost in yuan/kWh; cpv is static investment of photovoltaic engineering, and the unit is ten thousand yuan; cpk is initial investment of firewood, and the unit is ten thousand yuan; cc is the initial investment of energy storage, and the unit is ten thousand yuan; c (C) 0 Is the static initial investment of the system, and the unit is ten thousand yuan; i n The method is a project value-added tax deduction of the nth year, and the unit is ten thousand yuan; t (T) no tax The unit is Yuan/kWh, which does not contain tax electricity price; e (E) n Is the transaction electric quantity of the nth year, and the unit is kWh; r is R vat The tax rate is added value, and the unit is; v (V) R Is the system remainder, the unit is ten thousand yuan; mn is the running cost of the system in tens of thousands of yuan in the nth year; ir is interest in the construction period, and the unit is ten thousand yuan; td is the deductible tax in ten thousand yuan; epv (n) is the annual photovoltaic power production of the nth year in kWh; epk (n) is annual diesel power production in kWh for the nth year; epv _else (T) is the annual photovoltaic power discard of the nth year; i is the discount rate (%), which can be performed at five years or more with the Renminbi loan market quotation interest rate (LPR).
According to the embodiment of the disclosure, sequential photovoltaic power generation capacity of the photovoltaic power generator sets in each charging and discharging sequence and sequential power consumption capacity of the power system are obtained, a power consumption gap and a power generation surplus in each charging and discharging sequence are determined according to the sequential photovoltaic power generation capacity and the sequential power consumption capacity, time-by-time diesel power generation capacity corresponding to the diesel power generator sets in the power system is determined according to the power consumption gap and the power generation surplus, annual diesel power generation capacity of the diesel power generator sets is determined according to the time-by-time diesel power generation capacity, annual photovoltaic power generation capacity of the photovoltaic power generator sets is determined according to the time-by-time photovoltaic power generation capacity, and target scale electricity cost of the power system is determined according to the annual diesel power generation capacity and the annual electricity generation capacity of the annual power system, so that the annual scale electricity cost of the power system can be accurately solved, and the determining effect of the annual scale electricity cost is effectively improved.
Fig. 3 is a schematic structural diagram of a power system electricity cost determining device according to an embodiment of the present disclosure.
As shown in fig. 3, the utility cost determination device 30 of the power system includes: photovoltaic generating set, diesel generating set, energy storage unit and connection load, the device includes:
the acquisition module 301 is configured to acquire a sequential photovoltaic power generation amount of the photovoltaic power generator set and a sequential power consumption amount of the power system in each charging and discharging sequence;
a first determining module 302, configured to determine a power consumption gap and a power generation surplus in each charge-discharge order according to the order-by-order photovoltaic power generation amount and the order-by-order power consumption amount;
the second determining module 303 is configured to determine a time-by-time diesel generating capacity corresponding to the diesel generator set in the electric power system according to the electricity consumption gap and the surplus of the generating capacity;
the third determining module 304 is configured to determine a target electricity cost of the electric power system according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity.
In some embodiments of the present disclosure, the first determining module 302 is further configured to:
if the sequential photovoltaic power generation amount is larger than the sequential power consumption amount, determining a first difference value between the sequential photovoltaic power generation amount and the sequential power consumption amount as a power generation surplus;
and if the sequential photovoltaic power generation amount is smaller than the sequential power consumption amount, determining a second difference value between the sequential power consumption amount and the sequential photovoltaic power generation amount as a power consumption amount gap.
In some embodiments of the present disclosure, the power system further comprises: an energy storage unit;
wherein, the second determining module 303 is further configured to:
determining a first association relationship among a charge quantity gap, a sequential diesel generating capacity of a diesel generating set and a sequential energy storage charging quantity of an energy storage set in a charging and discharging sequence;
determining a second association relationship between the surplus generated energy in a charging and discharging sequence, the successive sequence energy storage and charging quantity and the successive sequence photovoltaic power discarding quantity of the photovoltaic generator set;
and determining the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system according to the electricity consumption gap, the generating capacity surplus, the first association relation and the second association relation.
In some embodiments of the present disclosure, the third determining module 304 is further configured to:
determining annual diesel generating capacity of the diesel generating set according to the time-by-time diesel generating capacity;
determining annual photovoltaic power generation capacity of the photovoltaic motor unit according to the hourly photovoltaic power generation capacity;
and determining the target scale electricity cost of the electric power system according to the annual diesel generating capacity and the annual photovoltaic generating capacity.
In some embodiments of the present disclosure, the third determining module 304 is further configured to:
acquiring a plurality of initial investment data of the power system;
and solving a power cost model according to annual diesel generating capacity, annual photovoltaic generating capacity and a plurality of initial investment data to obtain target power cost.
The present disclosure also provides a power system power cost determining device corresponding to the power system power cost determining method provided by the embodiments of fig. 1 to 2, and since the power system power cost determining device provided by the embodiments of the present disclosure corresponds to the power system power cost determining method provided by the embodiments of fig. 1 to 2, implementation of the power system power cost determining method is also applicable to the power system power cost determining device provided by the embodiments of the present disclosure, and will not be described in detail in the embodiments of the present disclosure.
In this embodiment, through obtaining the successive order photovoltaic power generation amount of the photovoltaic generator set and the successive order power consumption amount of the electric power system in each charging and discharging order, and according to the successive order photovoltaic power generation amount and the successive order power consumption amount, the power consumption amount gap and the power generation amount surplus in each charging and discharging order are determined, then according to the power consumption amount gap and the power generation amount surplus, the time-by-time diesel power generation amount corresponding to the diesel generator set in the electric power system is determined, and according to the time-by-time diesel power generation amount and the time-by-time photovoltaic power generation amount, the target electricity cost of the electric power system is determined, through the present disclosure, the electricity cost of the electric power system can be accurately determined, so that the electric power system can run at the optimal electricity cost under off-grid state.
In order to achieve the above embodiments, the present disclosure further proposes an electronic device including: the system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to realize the electrical cost determining method of the power system according to the previous embodiment of the disclosure.
In order to implement the above-described embodiments, the present disclosure also proposes a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of determining a power cost of a power system as proposed by the foregoing embodiments of the present disclosure.
To achieve the above-mentioned embodiments, the present disclosure also proposes a computer program product which, when executed by an instruction processor in the computer program product, performs a method for determining a power cost of a power system as proposed by the foregoing embodiments of the present disclosure.
Fig. 4 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure. The electronic device shown in fig. 4 is merely an example and should not be construed to limit the functionality and scope of use of the disclosed embodiments.
As shown in fig. 4, the electronic device is in the form of a general purpose computing device. Components of an electronic device may include, but are not limited to: one or more processors or processing units 16, a system memory 28, a bus 18 that connects the various system components, including the system memory 28 and the processing units 16.
Electronic devices typically include a variety of computer system readable media. Such media can be any available media that can be accessed by the electronic device and includes both volatile and nonvolatile media, removable and non-removable media.
Although not shown in fig. 4, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a compact disk read only memory (Compact Disc Read Only Memory; hereinafter CD-ROM), digital versatile read only optical disk (Digital Video Disc Read Only Memory; hereinafter DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of the various embodiments of the disclosure.
A program/utility 40 having a set (at least one) of program modules 42 may be stored in, for example, memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods in the embodiments described in this disclosure.
The electronic device may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), with one or more devices that enable a user to interact with the electronic device, and/or with any device (e.g., network card, modem, etc.) that enables the electronic device to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 22. And the electronic device may also communicate with one or more networks, such as a local area network (Local Area Network; hereinafter: LAN), a wide area network (Wide Area Network; hereinafter: WAN) and/or a public network, such as the Internet, via the network adapter 20. As shown, the network adapter 20 communicates with other modules of the electronic device over the bus 18. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with an electronic device, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, for example, implementing the electricity cost determination method of the electric power system mentioned in the foregoing embodiment.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
It should be noted that in the description of the present disclosure, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.
Any process or method descriptions in flow charts 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 further implementations are included within the scope of the preferred embodiment of the present disclosure 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 disclosure.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or part of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, where the program when executed includes one or a combination of the steps of the method embodiments.
Furthermore, each functional unit in the embodiments of the present disclosure may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented as software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 disclosure have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present disclosure.
Claims (10)
1. A method for determining a power cost of an electric power system, the electric power system comprising: the method comprises the following steps of:
acquiring successive photovoltaic power generation capacity of the photovoltaic generator set and successive power consumption of the power system in each charging and discharging sequence;
determining a power consumption gap and a power generation surplus in each charging and discharging sequence according to the successive photovoltaic power generation quantity and the successive power consumption;
determining the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system according to the electricity consumption gap and the generating capacity surplus;
and determining the target electricity cost of the electric power system according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity.
2. The method of claim 1, wherein said determining a power usage gap and a power generation surplus in each charge-discharge order from the successive order photovoltaic power generation and the successive order power usage comprises:
if the successive photovoltaic power generation amount is larger than the successive power consumption amount, determining a first difference value between the successive photovoltaic power generation amount and the successive power consumption amount as the power generation surplus;
and if the successive photovoltaic power generation amount is smaller than the successive power consumption amount, determining a second difference value between the successive power consumption amount and the successive photovoltaic power generation amount as the power consumption amount gap.
3. The method according to claim 1 or 2, wherein the determining a corresponding time-by-time diesel power generation amount of the diesel generator set in the electric power system according to the power consumption gap and the power generation amount surplus comprises:
determining a first association relationship between the sequential diesel generating capacity of the diesel generating set and the sequential energy storage charging capacity of the energy storage unit in the charging and discharging sequence, wherein the electricity consumption gap is defined;
determining a second association relationship between the generated energy surplus, the successive order energy storage charge amount and the successive order photovoltaic power discarding amount of the photovoltaic generator set in the charge-discharge order;
and determining the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system according to the electricity consumption gap, the generating capacity surplus, the first association relation and the second association relation.
4. The method of claim 1, wherein the determining the target electrical cost of the electrical power system from the time-by-time diesel generation and the time-by-time photovoltaic generation comprises:
determining annual diesel generating capacity of the diesel generating set according to the hourly diesel generating capacity;
determining annual photovoltaic power generation capacity of the photovoltaic motor unit according to the hourly photovoltaic power generation capacity;
and determining the target scale electricity cost of the electric power system according to the annual diesel generating capacity and the annual photovoltaic generating capacity.
5. The method of claim 4, wherein the determining the targeted electrical cost of the electrical power system based on the annual diesel production and the annual photovoltaic production comprises:
acquiring a plurality of initial investment data of the power system;
and solving a power electricity cost model according to the annual diesel generating capacity, the annual photovoltaic generating capacity and the plurality of initial investment data to acquire the target power electricity cost.
6. A utility cost determination device for an electrical power system, the electrical power system comprising: photovoltaic generating set, diesel generating set, energy storage unit and connection load, the device includes:
the acquisition module is used for acquiring successive photovoltaic power generation capacity of the photovoltaic generator set and successive power consumption of the power system in each charging and discharging sequence;
the first determining module is used for determining a power consumption gap and a power generation surplus in each charging and discharging sequence according to the successive photovoltaic power generation quantity and the successive power consumption;
the second determining module is used for determining the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system according to the electricity consumption gap and the generating capacity surplus;
and the third determining module is used for determining the target electricity cost of the electric power system according to the time-by-time diesel generating capacity and the time-by-time photovoltaic generating capacity.
7. The apparatus of claim 6, wherein the first determination module is further to:
if the successive photovoltaic power generation amount is larger than the successive power consumption amount, determining a first difference value between the successive photovoltaic power generation amount and the successive power consumption amount as the power generation surplus;
and if the successive photovoltaic power generation amount is smaller than the successive power consumption amount, determining a second difference value between the successive power consumption amount and the successive photovoltaic power generation amount as the power consumption amount gap.
8. The apparatus of any one of claims 6 or 7, wherein the determining a corresponding time-by-time diesel generation amount of the diesel generator set in the electric power system based on the electricity usage gap and the generation surplus comprises:
determining a first association relationship between the sequential diesel generating capacity of the diesel generating set and the sequential energy storage charging capacity of the energy storage unit in the charging and discharging sequence, wherein the electricity consumption gap is defined;
determining a second association relationship between the generated energy surplus, the successive order energy storage charge amount and the successive order photovoltaic power discarding amount of the photovoltaic generator set in the charge-discharge order;
and determining the time-by-time diesel generating capacity corresponding to the diesel generating set in the electric power system according to the electricity consumption gap, the generating capacity surplus, the first association relation and the second association relation.
9. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-5.
10. A non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of any one of claims 1-5.
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