CN116562912A - Correction method, device and medium for energy storage declaration curve - Google Patents
Correction method, device and medium for energy storage declaration curve Download PDFInfo
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Abstract
The application discloses a correction method, equipment and medium of an energy storage declaration curve, and belongs to the technical field of battery energy storage. In the application, firstly, the initial energy storage declaration curve is corrected based on predicted electricity price to obtain a pending energy storage declaration curve, and the benefit of the dispatching power curve is maximized by correcting the initial energy storage declaration curve based on predicted electricity price; and then, correcting the electricity price deviation of the pending energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve, and correcting the continuous same electricity price based on the predicted electricity price and the historical electricity price to make the charge and discharge points of the scheduling power curve unique.
Description
Technical Field
The present disclosure relates to the field of battery energy storage technologies, and in particular, to a method for correcting an energy storage declaration curve, a device for correcting an energy storage declaration curve, and a computer readable storage medium.
Background
In the spot arbitrage function of the independent energy storage solution project, the optimal result of the charge and discharge point scheduling power curve calculated and output by the current algorithm logic is not optimal, so that the income is not maximized, and the output result of the charge and discharge moment is not unique when continuous identical electricity prices exist.
Disclosure of Invention
The main purpose of the application is to provide a correction method of an energy storage declaration curve, correction equipment of the energy storage declaration curve and a computer readable storage medium, and aims to solve the technical problem that the optimal energy storage declaration curve is difficult to output.
In order to achieve the above object, the present application provides a method for correcting an energy storage declaration curve, the method including:
acquiring an initial energy storage declaration curve;
correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve;
and correcting the electricity price deviation of the pending energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
The step of correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve includes:
determining a charging and discharging time sequence in the initial energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
and correcting the reporting power of the continuous charge and discharge time combination on the initial energy storage reporting curve based on the predicted electricity price to obtain a pending energy storage reporting curve.
Illustratively, the step of determining a sequence of charging and discharging time instants in the initial energy storage declaration curve and determining a combination of consecutive charging and discharging times in the sequence of charging and discharging time instants includes:
determining charge and discharge time in the initial energy storage declaration curve, and generating a charge and discharge time sequence of the charge and discharge time based on time sequence;
and determining continuous charge and discharge time in the charge and discharge time sequence, and generating continuous charge and discharge time combinations based on the continuous charge and discharge time.
Illustratively, the step of correcting the declared power of the continuous charge-discharge time combination on the initial energy storage declared curve based on the predicted electricity price includes:
determining an electricity price sequence of the continuous charge-discharge time combination on the initial energy storage reporting curve based on the predicted electricity price;
and correcting the charge and discharge power of the continuous charge and discharge time combination based on the electricity price sequence.
Illustratively, the electricity price sequence of the continuous charging time combination is arranged in ascending order, the electricity price sequence of the continuous discharging time combination is arranged in descending order, and the step of correcting the charging and discharging power of the continuous charging and discharging time combination based on the electricity price sequence includes:
Assigning and arranging charging power of continuous charging time combinations based on the ascending electric price sequence;
and assigning and arranging the discharge power of the continuous discharge time combination based on the electricity price sequence arranged in a descending order.
The step of correcting the electricity price deviation of the pending energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve includes:
determining a charging and discharging time sequence in the pending energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
and correcting the electricity price deviation of the charge and discharge power of the continuous charge and discharge time combination on the to-be-determined energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
Illustratively, the step of correcting the electricity price deviation of the charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the predicted electricity price and the historical electricity price includes:
determining partial continuous charge-discharge time combinations having the same predicted electricity price among the continuous charge-discharge time combinations;
determining a historical electricity price of the partial continuous charge-discharge time combination, wherein the historical electricity price is a historical average discharged electricity price of charge-discharge time in the partial continuous charge-discharge time combination;
And determining an electricity price difference value between the historical electricity price and the same predicted electricity price, and correcting the charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the electricity price difference value.
The step of correcting the charge-discharge power of the continuous charge-discharge time combination on the pending energy storage declaration curve based on the electricity price difference value includes:
sequencing the electricity price difference values, and determining a target charging and discharging time with the minimum electricity price difference value;
determining a time difference between the target charge-discharge time and a charge-discharge end time of the partial continuous charge-discharge time combination;
and correcting the charge and discharge power of the continuous charge and discharge time combination on the undetermined energy storage declaration curve based on the charge and discharge target duration of the time difference and the continuous charge and discharge time combination.
The step of correcting the charge-discharge power of the continuous charge-discharge time combination on the pending energy storage declaration curve based on the charge-discharge target duration of the time difference and the continuous charge-discharge time combination includes:
and when the time difference is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, determining that the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the target charge-discharge time is 0, and adjusting the charge-discharge power between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the target charge-discharge time.
The step of correcting the charge-discharge power of the continuous charge-discharge time combination on the pending energy storage declaration curve based on the charge-discharge target duration of the time difference and the continuous charge-discharge time combination includes:
when the time difference is smaller than the charge-discharge target duration of the continuous charge-discharge time combination, determining a new target charge-discharge time based on the charge-discharge target duration, wherein the time difference between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, and the electricity price difference of the new target charge-discharge time is minimum;
and adjusting the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the new target charge-discharge time to be 0, and adjusting the charge-discharge power between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the new target charge-discharge time.
The application also provides a correction device of the energy storage declaration curve, the device comprises:
the acquisition module is used for acquiring an initial energy storage declaration curve;
The first correction module is used for correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve;
and the second correction module is used for correcting the electricity price deviation of the pending energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
The application also provides a correction device of the energy storage declaration curve, the correction device of the energy storage declaration curve comprises: the method comprises the steps of a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the computer program is executed by the processor to realize the correction method of the energy storage declaration curve.
The present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for modifying an energy storage declaration curve as described above.
The embodiment of the application provides a correction method of an energy storage declaration curve, correction equipment of the energy storage declaration curve and a computer readable storage medium, and initial energy storage declaration curve is obtained; correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve; and correcting the electricity price deviation of the pending energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
In the application, firstly, the initial energy storage declaration curve is corrected based on predicted electricity price to obtain a pending energy storage declaration curve, and the benefit of the dispatching power curve is maximized by correcting the initial energy storage declaration curve based on predicted electricity price; and then, correcting the electricity price deviation of the pending energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve, and correcting the continuous same electricity price based on the predicted electricity price and the historical electricity price to make the charge and discharge points of the scheduling power curve unique.
Drawings
FIG. 1 is a schematic diagram of an operating device of a hardware operating environment according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of an embodiment of a method for correcting an energy storage reporting curve according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of another embodiment of a method for correcting an energy storage reporting curve according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of power for reporting during correction of an embodiment of a method for correcting an energy storage reporting curve according to an embodiment of the present application;
FIG. 5 is a schematic flow chart of another embodiment of a method for correcting an energy storage reporting curve according to an embodiment of the present disclosure;
Fig. 6 is a schematic diagram of a correction device for an energy storage reporting curve according to an embodiment of the present application.
The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
Referring to fig. 1, fig. 1 is a schematic diagram of an operating device of a hardware operating environment according to an embodiment of the present application.
As shown in fig. 1, the operation device may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) Memory or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the structure shown in fig. 1 is not limiting of the operating device and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.
As shown in fig. 1, an operating system, a data storage module, a network communication module, a user interface module, and a computer program may be included in the memory 1005 as one type of storage medium.
In the operating device shown in fig. 1, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with a user; the processor 1001, the memory 1005 in the operation device of the present application may be provided in an operation device that calls a computer program stored in the memory 1005 through the processor 1001 and performs the following operations:
acquiring an initial energy storage declaration curve;
correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve;
and correcting the electricity price deviation of the pending energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
The step of correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve comprises the following steps:
determining a charging and discharging time sequence in the initial energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
and correcting the reporting power of the continuous charge and discharge time combination on the initial energy storage reporting curve based on the predicted electricity price to obtain a pending energy storage reporting curve.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
the step of determining the charge and discharge time sequence in the initial energy storage declaration curve and determining the continuous charge and discharge time combination in the charge and discharge time sequence comprises the following steps:
determining charge and discharge time in the initial energy storage declaration curve, and generating a charge and discharge time sequence of the charge and discharge time based on time sequence;
and determining continuous charge and discharge time in the charge and discharge time sequence, and generating continuous charge and discharge time combinations based on the continuous charge and discharge time.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
The step of correcting the reporting power of the continuous charge-discharge time combination on the initial energy storage reporting curve based on the predicted electricity price comprises the following steps:
determining an electricity price sequence of the continuous charge-discharge time combination on the initial energy storage reporting curve based on the predicted electricity price;
and correcting the charge and discharge power of the continuous charge and discharge time combination based on the electricity price sequence.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
the electricity price sequence of the continuous charging time combination is arranged in ascending order, the electricity price sequence of the continuous discharging time combination is arranged in descending order, and the step of correcting the charging and discharging power of the continuous charging and discharging time combination based on the electricity price sequence comprises the following steps:
assigning and arranging charging power of continuous charging time combinations based on the ascending electric price sequence;
and assigning and arranging the discharge power of the continuous discharge time combination based on the electricity price sequence arranged in a descending order.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
the step of correcting the electricity price deviation of the to-be-determined energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve comprises the following steps:
Determining a charging and discharging time sequence in the pending energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
and correcting the electricity price deviation of the charge and discharge power of the continuous charge and discharge time combination on the to-be-determined energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
the step of correcting the electricity price deviation of the charge and discharge power of the continuous charge and discharge time combination on the to-be-determined energy storage declaration curve based on the predicted electricity price and the historical electricity price comprises the following steps:
determining partial continuous charge-discharge time combinations having the same predicted electricity price among the continuous charge-discharge time combinations;
determining a historical electricity price of the partial continuous charge-discharge time combination, wherein the historical electricity price is a historical average discharged electricity price of charge-discharge time in the partial continuous charge-discharge time combination;
and determining an electricity price difference value between the historical electricity price and the same predicted electricity price, and correcting the charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the electricity price difference value.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
the step of correcting the charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the electricity price difference value comprises the following steps:
sequencing the electricity price difference values, and determining a target charging and discharging time with the minimum electricity price difference value;
determining a time difference between the target charge-discharge time and a charge-discharge end time of the partial continuous charge-discharge time combination;
and correcting the charge and discharge power of the continuous charge and discharge time combination on the undetermined energy storage declaration curve based on the charge and discharge target duration of the time difference and the continuous charge and discharge time combination.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
the step of correcting the charge-discharge power of the continuous charge-discharge time combination on the pending energy storage declaration curve based on the charge-discharge target duration of the time difference and the continuous charge-discharge time combination includes:
and when the time difference is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, determining that the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the target charge-discharge time is 0, and adjusting the charge-discharge power between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the target charge-discharge time.
In an embodiment, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
the step of correcting the charge-discharge power of the continuous charge-discharge time combination on the pending energy storage declaration curve based on the charge-discharge target duration of the time difference and the continuous charge-discharge time combination includes:
when the time difference is smaller than the charge-discharge target duration of the continuous charge-discharge time combination, determining a new target charge-discharge time based on the charge-discharge target duration, wherein the time difference between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, and the electricity price difference of the new target charge-discharge time is minimum;
and adjusting the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the new target charge-discharge time to be 0, and adjusting the charge-discharge power between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the new target charge-discharge time.
An embodiment of the present application provides a method for correcting an energy storage declaration curve, referring to fig. 2, in an embodiment of the method for correcting an energy storage declaration curve, the method includes:
and S10, acquiring an initial energy storage declaration curve.
And acquiring input parameters required for generating an initial energy storage reporting curve, substituting the input parameters into an algorithm, and calculating to obtain a scheduling curve (reporting curve).
In one embodiment, first, the input parameters include: interface parameters such as electricity price curve, initial/operation cost, cycle number and the like, and algorithm parameters such as frequency limit, price difference boundary and the like. In the present embodiment, the declaration curve generation algorithm is not limited.
Then, initializing algorithm parameters, and assigning values to certain algorithm parameters, such as inertia factors, self-cognition factors, social cognition learning rate, self-cognition learning rate, particle number, search dimension, maximum iteration number, limited maximum speed and limitA fixed maximum value, etc. In one embodiment, the algorithm parameters may be set, such as particle number, iteration number, inertial weight: self cognition factor C1,/I>Social cognition factor B1, < >>Wmax: inertial factor maximum; wmin: inertia factor minimum; cmax is as follows: self cognition factor maximum; cmin: self cognition factor minimum; bmax is the maximum value of social cognition factors; bmin is the minimum value of social cognition factors.
And finally, importing the input parameters and the algorithm parameters into an algorithm, and obtaining an initial declaration curve through the algorithm.
And step S20, correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve.
And the initial energy storage declaration curve is corrected based on the predicted electricity price, so that the income of the dispatching power curve is maximized, and the income rate of the independent energy storage spot arbitrage is improved.
And step S30, correcting the electricity price deviation of the pending energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve.
The charging and discharging points of the dispatching power curve are unique by correcting the continuous identical electricity price based on the predicted electricity price and the historical electricity price.
In this embodiment, an initial energy storage declaration curve is obtained; correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve; and correcting the electricity price deviation of the pending energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
In the embodiment, firstly, the initial energy storage reporting curve is corrected based on the predicted electricity price to obtain a pending energy storage reporting curve, and the benefit of the dispatching power curve is maximized by correcting the initial energy storage reporting curve based on the predicted electricity price; and then, correcting the electricity price deviation of the pending energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve, and correcting the continuous same electricity price based on the predicted electricity price and the historical electricity price to make the charge and discharge points of the scheduling power curve unique.
In another embodiment of the method for correcting an energy storage declaration curve, referring to fig. 3, the step of correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve includes:
step S201, determining a charge-discharge time sequence in the initial energy storage declaration curve, and determining continuous charge-discharge time combinations in the charge-discharge time sequence;
and step S202, correcting the reporting power of the continuous charge and discharge time combination on the initial energy storage reporting curve based on the predicted electricity price to obtain a pending energy storage reporting curve.
When the initial energy storage reporting curve is corrected based on the predicted electricity price to obtain the to-be-determined energy storage reporting curve, firstly, determining a charging and discharging time sequence in the initial energy storage reporting curve, wherein the charging and discharging time sequences are different charging and discharging times.
Then, a continuous charge-discharge time combination in the charge-discharge time sequence is determined, and in one embodiment, the charge time is 1,2,3,4,5, then the discharge time is 6, then the charge time is 7,8, then the discharge time is 9,10,11, then the charge time is 12,13,14, then the discharge time is 15,16,17,18,19,20, then the charge time is 21, then the discharge time is 22,23,24, and the continuous charge time combination in the continuous charge-discharge time combination is 1,2,3,4,5;7,8;12,13,14; the continuous discharge time combinations in the continuous charge and discharge time combinations are 9,10 and 11;15,16,17,18,19,20;22,23,24.
And then, correcting the charge and discharge power of the continuous charge and discharge time combination on the initial energy storage reporting curve based on the predicted electricity price to obtain a pending energy storage reporting curve.
Illustratively, the step of determining a sequence of charging and discharging time instants in the initial energy storage declaration curve and determining a combination of consecutive charging and discharging times in the sequence of charging and discharging time instants includes:
determining charge and discharge time in the initial energy storage declaration curve, and generating a charge and discharge time sequence of the charge and discharge time based on time sequence;
and determining continuous charge and discharge time in the charge and discharge time sequence, and generating continuous charge and discharge time combinations based on the continuous charge and discharge time.
Firstly, screening out m points which are not 0 (0 refers to no charge and no discharge) on an initial energy storage declaration curve, and generating a charge and discharge time sequence according to time sequence: k [ j ] (j=0 to m), and the value of K [ j ] represents the time point.
Then, the array K of the charge-discharge time series is processed to determine a time point of discharge between two charge points and a time point of charge between two discharge points, that is, to determine a continuous charge period and a continuous discharge period, thereby forming a plurality of continuous charge-discharge time combinations. And taking a continuous charge-discharge time combination with the combination number of >1, namely determining that at least two charge time points or at least two discharge time points exist.
In one embodiment, the declaration curve is X [ i ],
x [ K0 ] = -1, charging;
x [ K1 ] = -1, charging;
x [ K2 ] = 1, discharge;
x [ K3 ] = -1, charging;
x [ K4 ] = 1, discharge;
x [ K5 ] = 1, discharge;
x [ K6 ] = -1, charging;
x [ K7 ] = -1, charging;
x [ k8 ] = 1, discharge;
x [ K [9] ] =1, discharging;
then according to the rule of continuous charging and discharging,
generating charging time combination as [ K0 ], K1 ] and [ K6 ], K7 ],
the combination of the generated discharge time is [ K4 ], K5 ] and [ K8 ], K9 ].
Illustratively, the step of correcting the declared power of the continuous charge-discharge time combination on the initial energy storage declared curve based on the predicted electricity price includes:
determining an electricity price sequence of the continuous charge-discharge time combination on the initial energy storage reporting curve based on the predicted electricity price;
and correcting the charge and discharge power of the continuous charge and discharge time combination based on the electricity price sequence.
When the charging and discharging power of the continuous charging and discharging time combination on the initial energy storage reporting curve is corrected according to the predicted electricity price to obtain a pending energy storage reporting curve,
firstly, determining a power price sequence on a predicted power price corresponding to a continuous charge and discharge time combination on an initial energy storage declaration curve, and then correcting the charge and discharge power of the continuous charge and discharge time combination according to the power price sequence.
Illustratively, the electricity price sequence of the continuous charging time combination is arranged in ascending order, the electricity price sequence of the continuous discharging time combination is arranged in descending order, and the step of correcting the charging and discharging power of the continuous charging and discharging time combination based on the electricity price sequence includes:
assigning and arranging charging power of continuous charging time combinations based on the ascending electric price sequence;
and assigning and arranging the discharge power of the continuous discharge time combination based on the electricity price sequence arranged in a descending order.
Although the initial energy storage declaration curve generated with the aim of maximum benefit and lowest cost is currently generated, no consideration is given to the power factor, that is, when the predicted power is estimated according to the predicted electricity price, that is, when the predicted power is predicted according to the predicted electricity price, there is a problem in predicting the predicted power: the power obtained by prediction is not matched with the predicted electricity price, the optimizing result is not optimal, and the income is not maximized.
Therefore, in the present embodiment, the continuous charge-discharge time combination is corrected.
Recording an original sequence in the continuous charging time combination, simultaneously carrying out ascending arrangement of the corresponding predicted electricity price on the continuous charging time combination to obtain a sequence V, sequentially reassigning the power P corresponding to the original combination according to the sequence of the sequence V, and completing power exchange.
Recording the original sequence in the continuous discharge time combination, simultaneously carrying out descending order arrangement of the corresponding predicted electricity price on the continuous discharge time combination to obtain a sequence V, sequentially reassigning the power P corresponding to the original combination according to the sequence of the sequence V, and completing power exchange.
In an embodiment, referring to fig. 4, assuming that the discharge combination time before sequencing is 7,8, and 9, the discharge combination time after sequencing is 9,8,7 according to the descending order of electricity prices, and one time point (default 1 h) can correspond to 4P points (one power point every 15 min), the power corresponding to P (7, 8, and 9) is assigned to each value according to the sequence of 9,8,7, so that the power is rearranged and distributed according to the electricity prices.
And finally, outputting the corrected charge and discharge power to obtain a pending energy storage declaration curve.
In another embodiment of the method for correcting an energy storage declaration curve, referring to fig. 5, the step of correcting the electricity price deviation of the to-be-determined energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve includes:
step S301, determining a charging and discharging time sequence in the to-be-determined energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
And step S302, correcting the charge and discharge power of the continuous charge and discharge time combination on the to-be-determined energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve.
The occurrence of the same electricity price in the same period results in the same benefits of different charging and discharging because the same electricity price results in a random selection of charging or discharging time points, thereby a plurality of random results occur. In this embodiment, in order to avoid a plurality of random results, the pending energy storage reporting curve is corrected according to the predicted electricity price and the historical electricity price to obtain the target energy storage reporting curve.
The step of determining the charge-discharge time sequence in the pending energy storage declaration curve and determining the continuous charge-discharge time combination in the charge-discharge time sequence is similar to the step of determining the charge-discharge time sequence in the initial energy storage declaration curve and determining the continuous charge-discharge time combination in the charge-discharge time sequence, and is not described herein.
Illustratively, the step of correcting the electricity price deviation of the charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the predicted electricity price and the historical electricity price includes:
Determining partial continuous charge-discharge time combinations having the same predicted electricity price among the continuous charge-discharge time combinations;
determining a historical electricity price of the partial continuous charge-discharge time combination, wherein the historical electricity price is a historical average discharged electricity price of charge-discharge time in the partial continuous charge-discharge time combination;
and determining an electricity price difference value between the historical electricity price and the same predicted electricity price, and correcting the charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the electricity price difference value.
When the charging and discharging power of the continuous charging and discharging time combination on the to-be-determined energy storage declaration curve is corrected according to the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve,
first, partial continuous charge-discharge time combinations with the same predicted electricity prices are determined from the continuous charge-discharge time combinations, wherein the partial continuous charge-discharge time combinations are at least two combinations of continuous charge-discharge time instants with the same predicted electricity prices, and at most all continuous charge-discharge time instants in the continuous charge-discharge time combinations have the same predicted electricity prices, namely at most the continuous charge-discharge time combinations.
Then, the historical electricity prices of the partial continuous charge-discharge time combination, that is, the historical average electricity discharge price of the charge-discharge time in the partial continuous charge-discharge time combination is determined, and in an embodiment, the historical electricity prices are the average electricity discharge price in the previous period, that is, the previous day, and each hour corresponds to one historical average electricity discharge price, and the previous period has 24 historical average electricity discharge prices.
And finally, based on the electricity price difference value between the historical electricity price and the same predicted electricity price, correcting the charge and discharge power of the continuous charge and discharge time combination on the to-be-determined energy storage declaration curve.
The step of correcting the charge-discharge power of the continuous charge-discharge time combination on the pending energy storage declaration curve based on the electricity price difference value includes:
sequencing the electricity price difference values, and determining a target charging and discharging time with the minimum electricity price difference value;
determining a time difference between the target charge-discharge time and a charge-discharge end time of the partial continuous charge-discharge time combination;
and correcting the charge and discharge power of the continuous charge and discharge time combination on the undetermined energy storage declaration curve based on the charge and discharge target duration of the time difference and the continuous charge and discharge time combination.
When the charge and discharge power of the continuous charge and discharge time combination on the energy storage declaration curve to be determined is corrected according to the electricity price difference value, firstly, the electricity price difference value is ordered, the target charge and discharge time with the smallest electricity price difference value is determined, meanwhile, the charge and discharge time with the next lower electricity price difference value can be determined, and the like, and the charge and discharge time in the continuous charge and discharge time combination is reordered according to the magnitude order of the electricity price difference value. The electricity price interpolation is the absolute value of the difference value between the historical electricity price and the same predicted electricity price.
And then, after determining the target charge-discharge time with the minimum electricity price difference, determining the time difference between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination, and correcting the charge-discharge power of the continuous charge-discharge time combination on the to-be-determined energy storage declaration curve according to the time difference and the charge-discharge target duration of the continuous charge-discharge time combination.
The step of correcting the charge-discharge power of the continuous charge-discharge time combination on the pending energy storage declaration curve based on the charge-discharge target duration of the time difference and the continuous charge-discharge time combination includes:
And when the time difference is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, determining that the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the target charge-discharge time is 0, and adjusting the charge-discharge power between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the target charge-discharge time.
If the time difference between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is greater than or equal to the charge-discharge target time length of the continuous charge-discharge time combination, determining that the charge-discharge power between the charge-discharge start time and the target charge-discharge time of the partial continuous charge-discharge time combination is 0, and determining that the charge-discharge power between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is the charge-discharge power of the target charge-discharge time.
In an embodiment, the continuous charge-discharge time combination is 0 to 6 points, wherein the partial continuous charge-discharge time combination with the same predicted electricity price is 1 to 5 points, the target charge-discharge time with the smallest electricity price difference is 3 points, and the time difference between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination can be determined to be 2 hours.
If the charge-discharge target period of the continuous charge-discharge time combination is 1 hour or 2 hours, since the time difference (2 hours) is greater than or exactly equal to the charge-discharge target period of the continuous charge-discharge time combination (1 hour or 2 hours), the charge-discharge power between the charge-discharge start time (1 point) and the target charge-discharge time (3 points) of the partial continuous charge-discharge time combination is 0, and the charge-discharge power between the target charge-discharge time (3 points) and the charge-discharge end time (5 points) of the partial continuous charge-discharge time combination is the charge-discharge power of the target charge-discharge time (3 points).
The step of correcting the charge-discharge power of the continuous charge-discharge time combination on the pending energy storage declaration curve based on the charge-discharge target duration of the time difference and the continuous charge-discharge time combination includes:
when the time difference is smaller than the charge-discharge target duration of the continuous charge-discharge time combination, determining a new target charge-discharge time based on the charge-discharge target duration, wherein the time difference between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, and the electricity price difference of the new target charge-discharge time is minimum;
And adjusting the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the new target charge-discharge time to be 0, and adjusting the charge-discharge power between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the new target charge-discharge time.
If the time difference between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is smaller than the charge-discharge target time of the continuous charge-discharge time combination, determining a new target charge-discharge time based on the charge-discharge target time, determining that the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the new target charge-discharge time is 0, and determining that the charge-discharge power between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is the charge-discharge power of the new target charge-discharge time.
In an embodiment, the continuous charge-discharge time combination is 0 to 6 points, wherein the partial continuous charge-discharge time combination with the same predicted electricity price is 1 to 5 points, the target charge-discharge time with the smallest electricity price difference is 3 points, the charge-discharge time with the second lowest electricity price difference is 4 points, the charge-discharge time with the third lowest electricity price difference is 2 points, and the time difference between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination can be 2 hours.
If the charge-discharge target time length of the continuous charge-discharge time combination is 3 hours, since the time difference (2 hours) is smaller than the charge-discharge target time length of the continuous charge-discharge time combination (3 hours), it is necessary to determine a new target charge-discharge time according to the charge-discharge target time length (3 hours). And determining a new target charge-discharge time with the minimum electricity price difference meeting the charge-discharge target time length (3 hours) between 1 point and 5 points of the partial continuous charge-discharge time combination, wherein the time difference between the new target charge-discharge time and the charge-discharge end time (5 points) of the partial continuous charge-discharge time combination is more than or equal to the charge-discharge target time length (3 hours) of the continuous charge-discharge time combination. Thereby determining the new target charge-discharge time as the charge-discharge time (2 points) with the third lowest electricity price difference.
The charge/discharge power between the charge/discharge start time (1 point) of the partial continuous charge/discharge time combination and the new target charge/discharge time (2 points) is 0, and the charge/discharge power between the new target charge/discharge time (2 points) and the charge/discharge end time (5 points) of the partial continuous charge/discharge time combination is the charge/discharge power of the target charge/discharge time (2 points).
When there are consecutive identical electricity prices, the result of the charge/discharge time outputted by randomly selecting the charge/discharge time is not unique. Therefore, in the present embodiment, the charge and discharge are performed each time from the point of time when the electricity price deviation is minimum, so that the actual predicted electricity price is brought closer to the more accurate historical electricity price, resulting in the more accurate predicted electricity price.
Referring to fig. 6, in addition, the embodiment of the present application further provides a device for correcting an energy storage declaration curve, where the device for correcting an energy storage declaration curve includes:
the acquisition module M1 is used for acquiring an initial energy storage declaration curve;
the first correction module M2 is used for correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve;
and the second correction module M3 is used for correcting the electricity price deviation of the pending energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
Illustratively, the first correction module is further configured to:
determining a charging and discharging time sequence in the initial energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
and correcting the reporting power of the continuous charge and discharge time combination on the initial energy storage reporting curve based on the predicted electricity price to obtain a pending energy storage reporting curve.
Illustratively, the first correction module is further configured to:
determining charge and discharge time in the initial energy storage declaration curve, and generating a charge and discharge time sequence of the charge and discharge time based on time sequence;
And determining continuous charge and discharge time in the charge and discharge time sequence, and generating continuous charge and discharge time combinations based on the continuous charge and discharge time.
Illustratively, the first correction module is further configured to:
determining an electricity price sequence of the continuous charge-discharge time combination on the initial energy storage reporting curve based on the predicted electricity price;
and correcting the charge and discharge power of the continuous charge and discharge time combination based on the electricity price sequence.
Illustratively, the first correction module is further configured to:
assigning and arranging charging power of continuous charging time combinations based on the ascending electric price sequence;
and assigning and arranging the discharge power of the continuous discharge time combination based on the electricity price sequence arranged in a descending order.
Illustratively, the second correction module is further configured to:
determining a charging and discharging time sequence in the pending energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
and correcting the electricity price deviation of the charge and discharge power of the continuous charge and discharge time combination on the to-be-determined energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
Illustratively, the second correction module is further configured to:
Determining partial continuous charge-discharge time combinations having the same predicted electricity price among the continuous charge-discharge time combinations;
determining a historical electricity price of the partial continuous charge-discharge time combination, wherein the historical electricity price is a historical average discharged electricity price of charge-discharge time in the partial continuous charge-discharge time combination;
and determining an electricity price difference value between the historical electricity price and the same predicted electricity price, and correcting the charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the electricity price difference value.
Illustratively, the second correction module is further configured to:
sequencing the electricity price difference values, and determining a target charging and discharging time with the minimum electricity price difference value;
determining a time difference between the target charge-discharge time and a charge-discharge end time of the partial continuous charge-discharge time combination;
and correcting the charge and discharge power of the continuous charge and discharge time combination on the undetermined energy storage declaration curve based on the charge and discharge target duration of the time difference and the continuous charge and discharge time combination.
Illustratively, the second correction module is further configured to:
and when the time difference is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, determining that the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the target charge-discharge time is 0, and adjusting the charge-discharge power between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the target charge-discharge time.
Illustratively, the second correction module is further configured to:
when the time difference is smaller than the charge-discharge target duration of the continuous charge-discharge time combination, determining a new target charge-discharge time based on the charge-discharge target duration, wherein the time difference between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, and the electricity price difference of the new target charge-discharge time is minimum;
and adjusting the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the new target charge-discharge time to be 0, and adjusting the charge-discharge power between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the new target charge-discharge time.
The correction device for the energy storage declaration curve solves the technical problem that the optimal energy storage declaration curve is difficult to output by adopting the correction method for the energy storage declaration curve in the embodiment. Compared with the conventional technology, the beneficial effects of the correction device for the energy storage declaration curve provided by the embodiment of the application are the same as those of the correction method for the energy storage declaration curve provided by the embodiment, and other technical features in the correction device for the energy storage declaration curve are the same as those disclosed by the method of the embodiment, so that no redundant description is given here.
In addition, the embodiment of the application also provides a correction device for an energy storage declaration curve, where the correction device for the energy storage declaration curve includes: the method comprises the steps of a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the computer program is executed by the processor to realize the correction method of the energy storage declaration curve.
In addition, the embodiment of the application further provides a computer readable storage medium, and the computer readable storage medium stores a computer program, and the computer program realizes the steps of the method for correcting the energy storage declaration curve when being executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the conventional technology in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method described in the embodiments of the present application.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.
Claims (12)
1. A method for modifying an energy storage declaration curve, the method comprising:
Acquiring an initial energy storage declaration curve;
correcting the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve;
and correcting the electricity price deviation of the pending energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
2. The method for modifying an energy storage declaration curve according to claim 1, wherein the step of modifying the declaration power of the initial energy storage declaration curve based on the predicted electricity price to obtain a pending energy storage declaration curve includes:
determining a charging and discharging time sequence in the initial energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
and correcting the reporting power of the continuous charge and discharge time combination on the initial energy storage reporting curve based on the predicted electricity price to obtain a pending energy storage reporting curve.
3. The method of claim 2, wherein the step of determining a sequence of charge and discharge times in the initial energy storage declaration curve and determining a combination of successive charge and discharge times in the sequence of charge and discharge times comprises:
Determining charge and discharge time in the initial energy storage declaration curve, and generating a charge and discharge time sequence of the charge and discharge time based on time sequence;
and determining continuous charge and discharge time in the charge and discharge time sequence, and generating continuous charge and discharge time combinations based on the continuous charge and discharge time.
4. The method for modifying an energy storage declaration curve according to claim 2, wherein the step of modifying declaration power of the continuous charge-discharge time combination on the initial energy storage declaration curve based on a predicted electricity price includes:
determining an electricity price sequence of the continuous charge-discharge time combination on the initial energy storage reporting curve based on the predicted electricity price;
and correcting the charge and discharge power of the continuous charge and discharge time combination based on the electricity price sequence.
5. The method for modifying an energy storage declaration curve according to claim 4, wherein a power rate sequence of continuous charge time combinations is an ascending order, a power rate sequence of continuous discharge time combinations is a descending order, and the step of modifying charge and discharge power of the continuous charge and discharge time combinations based on the power rate sequence includes:
assigning and arranging charging power of continuous charging time combinations based on the ascending electric price sequence;
And assigning and arranging the discharge power of the continuous discharge time combination based on the electricity price sequence arranged in a descending order.
6. The method for correcting an energy storage declaration curve according to claim 1, wherein the step of correcting the electricity price deviation of the pending energy storage declaration curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage declaration curve includes:
determining a charging and discharging time sequence in the pending energy storage declaration curve, and determining continuous charging and discharging time combinations in the charging and discharging time sequence;
and correcting the electricity price deviation of the charge and discharge power of the continuous charge and discharge time combination on the to-be-determined energy storage reporting curve based on the predicted electricity price and the historical electricity price to obtain a target energy storage reporting curve.
7. The method for correcting an energy storage declaration curve according to claim 6, wherein the step of correcting a power price deviation of charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the predicted power price and the historical power price includes:
determining partial continuous charge-discharge time combinations having the same predicted electricity price among the continuous charge-discharge time combinations;
Determining a historical electricity price of the partial continuous charge-discharge time combination, wherein the historical electricity price is a historical average discharged electricity price of charge-discharge time in the partial continuous charge-discharge time combination;
and determining an electricity price difference value between the historical electricity price and the same predicted electricity price, and correcting the charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the electricity price difference value.
8. The method for modifying an energy storage declaration curve according to claim 7, wherein the step of modifying charge and discharge power of the continuous charge and discharge time combination on the pending energy storage declaration curve based on the electricity price difference value includes:
sequencing the electricity price difference values, and determining a target charging and discharging time with the minimum electricity price difference value;
determining a time difference between the target charge-discharge time and a charge-discharge end time of the partial continuous charge-discharge time combination;
and correcting the charge and discharge power of the continuous charge and discharge time combination on the undetermined energy storage declaration curve based on the charge and discharge target duration of the time difference and the continuous charge and discharge time combination.
9. The method for correcting an energy storage declaration curve according to claim 8, wherein the step of correcting the charge/discharge power of the continuous charge/discharge time combination on the pending energy storage declaration curve based on the charge/discharge target duration of the time difference and the continuous charge/discharge time combination includes:
And when the time difference is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, determining that the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the target charge-discharge time is 0, and adjusting the charge-discharge power between the target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the target charge-discharge time.
10. The method for correcting an energy storage declaration curve according to claim 8, wherein the step of correcting the charge/discharge power of the continuous charge/discharge time combination on the pending energy storage declaration curve based on the charge/discharge target duration of the time difference and the continuous charge/discharge time combination includes:
when the time difference is smaller than the charge-discharge target duration of the continuous charge-discharge time combination, determining a new target charge-discharge time based on the charge-discharge target duration, wherein the time difference between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination is greater than or equal to the charge-discharge target duration of the continuous charge-discharge time combination, and the electricity price difference of the new target charge-discharge time is minimum;
And adjusting the charge-discharge power between the charge-discharge start time of the partial continuous charge-discharge time combination and the new target charge-discharge time to be 0, and adjusting the charge-discharge power between the new target charge-discharge time and the charge-discharge end time of the partial continuous charge-discharge time combination to be the charge-discharge power of the new target charge-discharge time.
11. The utility model provides a correction equipment of energy storage declaration curve which characterized in that, the correction equipment of energy storage declaration curve includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method of modifying an energy storage declaration curve according to any one of claims 1 to 10.
12. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, which when executed by a processor implements the steps of the method for modifying an energy storage declaration curve according to any one of claims 1 to 10.
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