Method and system for correcting daily power generation plan based on output ramp rate

Abstract

The invention discloses a daily power generation plan correction method and system based on an output ramp rate. The method comprises the following steps: converting a daily power generation plan of a power station into a plan point change sequence; decomposing the plan point change sequence into a continuous multi-section monotonic change sequence; checking and correcting each section of monotonically changing sequence based on output ramp rate constraint; checking all inflection point correction conditions, and synchronizing correction results; and the correction results of the monotonically changing sequences are synthesized into the correction result of the daily power generation plan of the power station. Aiming at the problem of one-stop safety check and correction in the daily power generation plan compilation of the power station at present, the power generation plan compilation-safety check and correction-plan execution business process of the power station is greatly optimized, and powerful technical support is provided for meeting the reliable and efficient requirements of regulation and control integrated business.

Description

Technical Field

[0001] The present invention relates to a method for correcting the daily power generation plan of a power station, and particularly to a method and system for correcting the daily power generation plan based on the output ramp rate. Background Art

[0002] Patent CN201210460316.X discloses a method for correcting the real-time power generation plan of a power plant. The steps are as follows: obtaining the real-time prediction result of the whole network load; obtaining the inter-network power generation plan and the power plant power generation plan; calculating the power generation load increment of the system within a certain future time; comprehensively considering the differences in coal consumption characteristics and real-time regulation margins of thermal power plants, and realizing the optimal distribution of the power generation load increment among thermal power plants on the premise of satisfying the constraints of the unit regulation rate and the upper and lower limits of regulation; correcting the power generation plans of each thermal power plant; performing power flow check, stable section check and static security analysis check on the corrected real-time power generation plan to ensure that the corrected power generation plan does not violate the grid security constraints; and sending the corrected real-time power generation plan to the AGC or distributing it to each power plant for execution. This method comprehensively considers the economy and security of power grid operation, optimizes and adjusts the daily power generation plan, and gives a real-time power generation plan that meets the power grid operation requirements for the AGC or distribution to the power plant for execution.

[0003] For large or ultra-large hydropower stations with a large rated capacity of a single unit, the upper limit constraint of the output ramp rate, as an important electrical constraint condition, can restrict the impact of the power station on the power grid. In the compilation of the daily power generation plan of a hydropower station, the characteristics of the hydropower station reservoir and the water level constraint conditions during the scheduling period are usually mainly considered, and the electrical constraint conditions are insufficiently considered. Although this form of power generation plan can obtain better power generation, this plan may not meet the upper limit constraint of the output ramp rate, the power generation output process fluctuates greatly, and the impact on the power grid is large, which needs to be avoided. Affected by meteorological environments such as sudden changes in wind speed and wind direction, wind farms are also prone to problems where the power generation plan does not meet the upper limit constraint of the output ramp rate. Therefore, usually, safety checks need to be performed after the compilation of the daily or intraday power generation plan. After problems are found in the check, they are processed through manual intervention or returned to the plan compilation link, and so on in a loop until the power generation plan does not violate the security constraints. This results in a relatively large workload, low efficiency, and poor process versatility in the compilation of the daily or intraday power generation plan. In the existing technical solutions, when the output ramp rate constraint is not met, the plan compilation link is usually returned for re-correction. The plan compilation usually uses algorithms such as linear programming, integer programming, dynamic programming, and goal programming, and the calculation amount is relatively large. Moreover, in the daily power generation plan of a power station with the goal of unchanged daily power generation based on the output ramp rate, the processing of abnormal points often uses simple deletion and interpolation filling methods, resulting in problems in subsequent corrections, and there are often splicing abnormalities in the splicing at the inflection points. Summary of the Invention

[0004] Objective of the Invention: Aiming at the above problems, the present invention proposes a method and system for correcting the daily power generation plan based on the output ramp rate, which can correct the daily power generation plan of the power station based on the objective of unchanged daily power generation amount of the output ramp rate, and solves the problems of "divide and conquer" of abnormal points and inflection point splicing in the correction.

[0005] Technical Solution: The technical solution adopted by the present invention is a method for correcting the daily power generation plan based on the output ramp rate, including the following steps:

[0006] Step 1, convert the daily power generation plan of the power station into a sequence of planned point changes;

[0007] Step 2, decompose the sequence of planned point changes into multiple consecutive monotonically changing sequences. Each monotonically changing sequence is a consecutive subsequence of the sequence of planned point changes. The monotonicity of two consecutive monotonically changing sequences is opposite and there is an inflection point coincidence item;

[0008] Step 3, based on the output ramp rate constraint, check and correct each monotonically changing sequence, including:

[0009] (31) Check each item of the monotonically changing sequence in turn. When the deviation between the active power value of a certain item and the active power value of the subsequent adjacent item is greater than the output ramp upper limit threshold, both the current item and the adjacent item are recorded as abnormal points;

[0010] (32) If there are no abnormal points after traversing the current monotonically changing sequence, do not correct the current monotonically changing sequence; otherwise, go to the next step;

[0011] (33) Form a group of initial abnormal point monotonic sequences with all consecutive abnormal points. Each group of initial abnormal point monotonic sequences is a consecutive subsequence of the monotonically changing sequence. Each monotonically changing sequence can contain multiple groups of initial abnormal point monotonic sequences;

[0012] (34) Correct each group of initial abnormal point monotonic sequences in turn; if the correction result of a certain group of initial abnormal point monotonic sequences covers the subsequent groups of initial abnormal point monotonic sequences, do not correct the covered subsequent groups of initial abnormal point monotonic sequences anymore;

[0013] Step 4, check all inflection point correction situations and synchronize the correction results;

[0014] Step 5, synthesize the correction results of each monotonically changing sequence into the correction result of the daily power generation plan of the power station.

[0015] Converting the daily power generation plan of the power station into a sequence of planned point changes includes: sequentially extracting the planned points different from the active power value of the previous planned point from the daily power generation plan of the power station to form a sequence of planned point changes. The items of the sequence of planned point changes are expressed as (P i ,No i ,Ti ), where P i is the active power value of the i-th item in the sequence; No i is the point number of the planned point corresponding to the i-th item in the daily power generation plan of the power station; T i is the duration during which the active power value of the planned point corresponding to the i-th item in the sequence remains unchanged in the daily power generation plan of the power station.

[0016] Check and correct each monotonically changing sequence, and it also includes the constraint that the daily power generation amount remains unchanged before and after the correction of the daily power generation plan.

[0017] Correct each group of initial abnormal point monotonic sequences in turn. A preferred correction process includes:

[0018] (341) Calculate the active power correction value, and the calculation formula is:

[0019] When the initial abnormal point monotonic sequence is a monotonically decreasing sequence:

[0020]

[0021] When the initial abnormal point monotonic sequence is a monotonically increasing sequence:

[0022]

[0023] In the formula: n is the number of items, i is the sequence number, and the value range is [0, n - 1]; P i , T i , P′ i are respectively the active power value of the i-th item in the sequence, the duration during which the active power value of the planned point corresponding to the i-th item in the sequence remains unchanged in the daily power generation plan of the power station, and the active power correction value of the i-th item in the sequence; ΔP 爬坡 is the upper threshold of the output ramp;

[0024] In the monotonically changing sequence to which the first active power correction value P′0 belongs, when the deviation between the first active power correction value P′0 and the active power value of its previous adjacent item is greater than the upper threshold of the output ramp, if the previous adjacent item belongs to a group of abnormal point monotonic sequences A, then add the abnormal point monotonic sequence A as the head to the current abnormal point monotonic sequence, otherwise add the previous adjacent item as the head to the current abnormal point monotonic sequence;

[0025] In the monotonically changing sequence to which the last active power correction value P′ n-1 belongs, when the last active power correction value P′ n-1When the deviation of the active power value from the next adjacent item is greater than the output ramp-up upper limit threshold, if the next adjacent item belongs to a monotonic sequence B of abnormal points, then the monotonic sequence B of abnormal points is added as the tail to the current monotonic sequence of abnormal points; otherwise, the next adjacent item is added as the tail item to the current monotonic sequence of abnormal points.

[0026] (342) When the number of items in the monotonic sequence of abnormal points increases, go to step (341); otherwise, use the current corrected value of the monotonic sequence of abnormal points as the corrected result.

[0027] Check all inflection point correction situations and synchronize the correction results. A preferred correction process includes:

[0028] (41) If the inflection point is not corrected in both adjacent monotonic change sequences, no correction result synchronization is performed;

[0029] (42) If the inflection point is corrected in both adjacent monotonic change sequences, mark the current inflection point as a connection inflection point;

[0030] (43) If there are discontinuous connection inflection points in the planned point change sequence, then form a first connection sequence in order from two groups of monotonic sequences of abnormal points adjacent to the discontinuous connection inflection points, and correct the first connection sequence;

[0031] (44) If there are continuous connection inflection points in the planned point change sequence, then form a second connection sequence in order from the monotonic sequence of abnormal points adjacent to the left of the first continuous connection inflection point, the monotonic sequence of abnormal points adjacent to the right of the last continuous connection inflection point, and multiple segments of monotonic change sequences between the head and tail connection inflection points, and correct the second connection sequence;

[0032] (45) If the inflection point is corrected in one of the two adjacent monotonic change sequences, then use the corrected value of the inflection point as the correction result.

[0033] To correct the first connection sequence, a preferred correction process includes the following steps:

[0034] 431) The items in the first connection sequence are expressed as (P i , No i , T i , Delta i ), where P i is the active power value of the i-th item in the sequence, is the active power value of the planned point corresponding to the i-th item in the daily power generation plan of the power station, rather than the active power correction value; No i is the point number of the planned point corresponding to the i-th item in the daily power generation plan of the power station; T iThe duration during which the active power value of the planned point corresponding to the i-th item in the sequence remains unchanged in the daily power generation plan of the power station; Delta i is the deviation between the i-th item number in the first connection sequence and the connection inflection point item number. If the connection inflection point is an upper inflection point, Delta i takes a positive value. If the connection inflection point is a lower inflection point, Delta i takes a negative value; correct the active power values of each item in the first connection sequence, and the calculation formula is:

[0035]

[0036] In the formula, n is the number of items, i is the sequence number, and the value range is [0, n - 1]; P i 、T i 、P′ i are respectively the active power value, duration, and active power correction value of the i-th item in the first connection sequence; P′ 联络拐点 is the active power correction value of the connection inflection point of the first connection sequence; ΔP 爬坡 is the upper limit threshold of output ramp.

[0037] In the monotonic change sequence to which the active power correction value P′0 of the first item belongs, when the deviation between P′0 and the active power value of its previous adjacent item is greater than the upper limit threshold of output ramp, if the previous adjacent item belongs to a group of abnormal point monotonic sequences A, then add the abnormal point monotonic sequence A as the head to the first connection sequence, otherwise add the previous adjacent item as the first item to the first connection sequence; if the first item becomes a connection inflection point, then add a group of abnormal point monotonic sequences adjacent to the left of the first item as the head to the first connection sequence;

[0038] In the monotonic change sequence to which the active power correction value P′ n-1 of the last item belongs, when the deviation between P′ n-1 and the active power value of its subsequent adjacent item is greater than the upper limit threshold of output ramp, if the subsequent adjacent item belongs to a group of abnormal point monotonic sequences B, then add the abnormal point monotonic sequence B as the tail to the first connection sequence, otherwise add the subsequent adjacent item as the last item to the first connection sequence; if the last item becomes a connection inflection point, then add a group of abnormal point monotonic sequences adjacent to the right of the last item as the tail to the first connection sequence;

[0039] (432) When the number of items in the first connection sequence increases and there is only one connection inflection point, go to step (431). When the number of items in the first connection sequence increases and there are multiple consecutive connection inflection points, go to step (441). Otherwise, take the current correction value of the first connection sequence as the correction result;

[0040] Correct the second connection sequence, including the following steps:

[0041] (441) The second connection sequence item is expressed as (P i , No i , T i , Delta i ), where P i is the active power value of the i-th item in the sequence, which is the active power value of the planned point corresponding to the i-th item in the daily power generation plan of the power station, rather than the active power correction value; No i is the point number of the planned point corresponding to the i-th item in the daily power generation plan of the power station; T i is the duration during which the active power value of the planned point corresponding to the i-th item remains unchanged in the daily power generation plan of the power station; Delta i is the relative deviation between the sequence number of the i-th item in the second connection sequence and the sequence number of the first consecutive connection inflection point item. If the first consecutive connection inflection point is an upper inflection point, calculate Delta i as follows:

[0042]

[0043] If the first consecutive connection inflection point is a lower inflection point, calculate Delta i as follows:

[0044]

[0045] Correct each active power value, and the calculation formula is:

[0046]

[0047] In the formula: n is the number of items, i is the sequence number of the sequence, and the value range is [0, n - 1]; i 第一个联络拐点 , i 左侧相邻联络拐点 are the sequence numbers of the first consecutive connection inflection point item and the connection inflection point item adjacent to the left of the i-th item in the second connection sequence respectively; j is the connection inflection point ranking number of the connection inflection point item adjacent to the left of the i-th item in the second connection sequence. For the first consecutive connection inflection point item, j takes the value of 0, for the second consecutive connection inflection point item, j takes the value of 1, and so on; Delta 左侧相邻联络拐点 is the Delta i value of the connection inflection point item adjacent to the left of the i-th item in the second connection sequence; P i , T i , P' i are the active power value, duration, and active power correction value of the i-th item in the second connection sequence respectively; P' 第一个联络拐点 is the active power correction value of the first consecutive connection inflection point in the second connection sequence; ΔP 爬坡 is the output ramp-up upper limit threshold.

[0048] In the monotonically changing sequence to which the first active power correction value P′0 belongs, when the deviation between P′0 and the active power value of its previous adjacent term is greater than the output ramp-up upper limit threshold, if the previous adjacent term belongs to a set of abnormal point monotonic sequences A, then the abnormal point monotonic sequence A is added as the head to the second connection sequence; otherwise, the previous adjacent term is added as the head to the second connection sequence. If the head becomes a connection inflection point, then a set of abnormal point monotonic sequences adjacent to the left of the head is added as the head to the second connection sequence.

[0049] In the monotonically changing sequence to which the last active power correction value P′ n-1 belongs, when the deviation between P′ n-1 and the active power value of its next adjacent term is greater than the output ramp-up upper limit threshold, if the next adjacent term belongs to a set of abnormal point monotonic sequences B, then the abnormal point monotonic sequence B is added as the tail to the second connection sequence; otherwise, the next adjacent term is added as the tail to the second connection sequence. If the tail becomes a connection inflection point, then a set of abnormal point monotonic sequences adjacent to the right of the tail is added as the tail to the second connection sequence.

[0050] (442) When the number of items in the second connection sequence increases, go to step (441); otherwise, the current second connection sequence correction value is used as the corrected result.

[0051] The present invention provides a system for correcting a daily power generation plan based on the output ramp rate, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the method for correcting the daily power generation plan based on the output ramp rate as described above is implemented.

[0052] The present invention provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the method for correcting the daily power generation plan based on the output ramp rate as described above is implemented.

[0053] The present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method for correcting the daily power generation plan based on the output ramp rate as described above is implemented.

[0054] The present invention provides a computer program product, including a computer program / instructions. When the computer program / instructions are executed by a processor, the method for correcting the daily power generation plan based on the output ramp rate as described above is implemented.

[0055] Beneficial effects: Compared with the prior art, the present invention has the following advantages: (1) Based on the output ramp rate constraint, the daily power generation plan can be verified, and when an abnormality is verified, the automatic correction of the goal of unchanged daily power generation can be conveniently and quickly achieved. This method is applicable to various daily typical load curves and has good algorithm generality; (2) On the basis of verifying and correcting the daily power generation plan considering the upper and lower limit constraints of the output, this method can automatically meet the upper and lower limit constraints of the output to realize the verification and automatic correction of the daily power generation plan under the combined constraint conditions, and has good algorithm scalability; (3) Greatly optimize the business process of "power generation plan compilation - safety verification and correction - plan execution" of the power station, and provide strong technical support for meeting the reliable and efficient requirements of the dispatching integration service. It is applicable to application scenarios such as power grid dispatching centers, regional energy centralized control centers, large hydropower stations or new energy power stations. The present invention aims at the problem of "one-stop" safety verification and correction in the compilation of the daily power generation plan of the power station, establishes a correction model of the daily power generation plan of the power station with the goal of unchanged daily power generation based on the output ramp rate, and proposes a correction method that organically combines the decomposition of the monotonic change sequence, the rolling correction of the abnormal point monotonic sequence and the splicing of the inflection points, realizes the "one-stop" efficient and safe verification and correction in the compilation of the daily power generation plan of the power station, greatly optimizes the business process of "power generation plan compilation - safety verification and correction - plan execution" of the power station, and provides strong technical support for meeting the reliable and efficient requirements of the dispatching integration service. Brief Description of the Drawings

[0056] Figure 1 is the flowchart of the method for correcting the daily power generation plan based on the output ramp rate according to the present invention;

[0057] Figure 2 is the verification and correction process diagram of the monotonic change sequence according to the present invention;

[0058] Figure 3 is the correction process diagram of the abnormal point monotonic sequence according to the present invention. Detailed Embodiments

[0059] The technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0060] Explanation of related technical terms:

[0061] Continuous subsequence: A sequence of elements continuously extracted in order starting from a certain position in a sequence.

[0062] Inflection point: An element in a sequence whose characteristic value is greater than or less than the characteristic values of the adjacent elements on the left and right at the same time. For example, in the sequence {6250, 5550, 6250, 6950, 7550, 8150, 7550, 6950}, the second item 5550 and the sixth item 8150 are inflection points.

[0063] Upper inflection point: An element in a sequence whose eigenvalue is greater than the eigenvalues of its left and right adjacent elements simultaneously. For example, in the sequence {6250, 5550, 6250, 6950, 7550, 8150, 7550, 6950}, the 6th item 8150 is the upper inflection point.

[0064] Lower inflection point: An element in a sequence whose eigenvalue is less than the eigenvalues of its left and right adjacent elements simultaneously. For example, in the sequence {6250, 5550, 6250, 6950, 7550, 8150, 7550, 6950}, the 2nd item 5550 is the lower inflection point.

[0065] Contact inflection point: If an inflection point is corrected in two adjacent monotonically changing sequences, this inflection point is recorded as a contact inflection point.

[0066] Continuous contact inflection points: In the planned point change sequence, if there is at least one inflection point that is not a contact inflection point between two contact inflection points A and B, then the two contact inflection points A and B are not continuous; otherwise, the two contact inflection points A and B are continuous. Generally, if the two contact inflection points A and B are continuous, and the two contact inflection points B and C are continuous, then A, B, and C are continuous contact inflection points.

[0067] The method for correcting the daily power generation plan based on the output ramp rate according to the present invention has a flowchart as Figure 1 shown, and includes the following steps:

[0068] Step 1, convert the daily power generation plan of the power station into a planned point change sequence.

[0069] Specifically, it includes:

[0070] (11) The daily power generation plan of the power station is usually a 96-point active power value sequence, with a 15-minute interval for each point;

[0071] (12) Sequentially extract the planned points from the daily power generation plan of the power station that are different from the active power value of the previous planned point to form a planned point change sequence. The items of the planned point change sequence are expressed as (P i , No i , T i ), where P i is the active power value of this planned point; No i is the planned point number of this item in the daily power generation plan of the power station, and the value range is [0, 95]; T i is the duration during which the active power value of this planned point in the daily power generation plan of the power station remains unchanged;

[0072] (13) The T i of the last item of the planned point change sequence is counted as 96 - No i , and the t i of other items is counted as Mo i+1-No i 。

[0073] Step 2: Decompose the planned point change sequence into multiple consecutive monotonically changing sequences. Each monotonically changing sequence is a consecutive subsequence of the planned point change sequence. The monotonicity of two consecutive monotonically changing sequences is opposite and there is an inflection point coincidence term.

[0074] Step 3: As Figure 2 shown, based on the output ramp rate constraint, check and correct each monotonically changing sequence. Among them, the power plant output ramp rate constraint is:

[0075] |P i -P i-1 |≤ΔP 爬坡 ,i≥1 (1)

[0076] In the formula: P i is the active power value of the i-th item of the monotonically changing sequence; ΔP 爬坡 is the upper threshold of the output ramp.

[0077] At the same time, the checking and correcting process also satisfies that the daily power generation remains unchanged before and after the correction of the daily power generation plan.

[0078] Specifically, it includes:

[0079] (31) Check each item of the monotonically changing sequence in turn. When the deviation between the active power value of the current item and the active power value of the adjacent item after it is greater than the upper threshold of the output ramp, both the current item and the adjacent item after it are recorded as abnormal points;

[0080] (32) If there are no abnormal points after traversing the current monotonically changing sequence, then this monotonically changing sequence does not need to be corrected; otherwise, go to the next step;

[0081] (33) Form a group of initial abnormal point monotonic sequences with all consecutive abnormal points. Each group of initial abnormal point monotonic sequences is a consecutive subsequence of the monotonically changing sequence. Each monotonically changing sequence can contain multiple groups of initial abnormal point monotonic sequences;

[0082] (34) As Figure 3 shown, correct each group of initial abnormal point monotonic sequences in turn in the monotonically changing sequence;

[0083] The process of correcting each group of initial abnormal point monotonic sequences in turn in the monotonically changing sequence can be:

[0084] (341) When the initial abnormal point monotonic sequence is a monotonically decreasing sequence, the correction steps are as follows:

[0085] (3411) Correct the active power values of each item according to formula (2):

[0086]

[0087] Where: i is the serial number of the monotonic sequence of abnormal points with the number of terms being n, and the value range is [0, n - 1]; P i , T i , P' i are respectively the active power value, duration, and active power correction value of the i-th item of the monotonic sequence of abnormal points; ΔP 爬坡 is the upper limit threshold of the output ramp.

[0088] (3412) In the monotonic change sequence, when the deviation between P'0 and the active power value of its previous adjacent item is greater than the upper limit threshold of the output ramp, if the previous adjacent item belongs to a group of monotonic sequences of abnormal points, then this group of monotonic sequences of abnormal points is added as the head to the current monotonic sequence of abnormal points; otherwise, the previous adjacent item is added as the first item to the current monotonic sequence of abnormal points;

[0089] (3413) In the monotonic change sequence, when the deviation between P' n-1 and the active power value of its subsequent adjacent item is greater than the upper limit threshold of the output ramp, if the subsequent adjacent item belongs to a group of monotonic sequences of abnormal points, then this group of monotonic sequences of abnormal points is added as the tail to the current monotonic sequence of abnormal points; otherwise, the subsequent adjacent item is added as the last item to the current monotonic sequence of abnormal points;

[0090] (3414) When the number of items in the monotonic sequence of abnormal points increases, go to step (3411); otherwise, write back the correction result of this group of monotonic sequences of abnormal points to the monotonic change sequence to which it belongs.

[0091] (342) When the initial monotonic sequence of abnormal points is a monotonically increasing sequence, the correction steps are as follows:

[0092] (3421) Correct the active power values of each item according to formula (3):

[0093]

[0094] Where: i is the serial number of the monotonic sequence of abnormal points with the number of terms being n, and the value range is [0, n - 1]; P u , T i , P' i are respectively the active power value, duration, and active power correction value of the i-th item of the monotonic sequence of abnormal points; ΔP 爬坡 is the upper limit threshold of the output ramp.

[0095] (3422) In the monotonic change sequence, when the deviation between P'0 and the active power value of its previous adjacent item is greater than the upper limit threshold of the output ramp, if the previous adjacent item belongs to a group of monotonic sequences of abnormal points, then this group of monotonic sequences of abnormal points is added as the head to the current monotonic sequence of abnormal points; otherwise, the previous adjacent item is added as the first item to the current monotonic sequence of abnormal points;

[0096] (3423) In a monotonically varying sequence, when the deviation between the active power value of P′ n-1 and the active power value of its next adjacent term is greater than the output ramp-up upper limit threshold, if the next adjacent term belongs to a monotonic sequence of abnormal points, then this monotonic sequence of abnormal points is added as the tail to the current monotonic sequence of abnormal points; otherwise, the next adjacent term is added as the tail term to the current monotonic sequence of abnormal points;

[0097] (3424) When the number of terms in the monotonic sequence of abnormal points increases, go to step (3421); otherwise, write back the correction result of this monotonic sequence of abnormal points to the belonging monotonically varying sequence.

[0098] (35) When the correction result of the initial monotonic sequence of abnormal points in the previous group covers the initial monotonic sequence of abnormal points in the subsequent group, then the covered initial monotonic sequence of abnormal points in the subsequent group does not need to be corrected again.

[0099] Step 4, check all inflection point correction situations and synchronize the correction results;

[0100] (41) If the inflection point is not corrected in both adjacent monotonically varying sequences, there is no need to synchronize the correction results;

[0101] (42) If the inflection point is corrected in both adjacent monotonically varying sequences, then mark the current inflection point as a connection inflection point;

[0102] (43) If there is a connection inflection point in the planned point change sequence and it is discontinuous, then form a connection sequence in order from the two adjacent monotonic sequences of abnormal points of this connection inflection point, and correct this connection sequence;

[0103] (431) The terms of the connection sequence are expressed as (P i , No i , T i , Delta i ), where P i is the active power value of this planned point in the daily power generation plan of the power station; No i is the point number of this planned point in the daily power generation plan of the power station, and the value range is [0, 95]; T i is the duration for which the active power value of this planned point in the daily power generation plan of the power station remains unchanged; |Delta i | is the absolute value of the deviation between the sequence number of this item in the connection sequence and the sequence number of the connection inflection point item. If this connection inflection point is an upper inflection point, Delta i takes a positive value; if this connection inflection point is a lower inflection point, Delta i takes a negative value. Correct the active power values of each item according to formula (4):

[0104]

[0105] Where: i is the serial number of the connection sequence with the number of terms being n, and its value range is [0, n - 1]; P i , T i , P' i are respectively the active power value, duration, and active power correction value of the i-th term of the connection sequence; P' 联络拐点 is the active power correction value at the connection inflection point of the connection sequence; ΔP 爬坡 is the upper threshold of the output ramp-up limit.

[0106] (432) In the monotonic change sequence to which P'0 belongs, when the deviation between P'0 and the active power value of its previous adjacent term is greater than the upper threshold of the output ramp-up limit, if the previous adjacent term belongs to a monotonic sequence of abnormal points, then this monotonic sequence of abnormal points is added as the head to the connection sequence, otherwise the previous adjacent term is added as the first term to the connection sequence. If the first term becomes the connection inflection point at this time, then a monotonic sequence of abnormal points adjacent to the left of the first term is added as the head to the connection sequence;

[0107] (433) In the monotonic change sequence to which P' n-1 belongs, when the deviation between P' n-1 and the active power value of its next adjacent term is greater than the upper threshold of the output ramp-up limit, if the next adjacent term belongs to a monotonic sequence of abnormal points, then this monotonic sequence of abnormal points is added as the tail to the connection sequence, otherwise the next adjacent term is added as the last term to the connection sequence. If the last term becomes the connection inflection point at this time, then a monotonic sequence of abnormal points adjacent to the right of the last term is added as the tail to the connection sequence;

[0108] (434) When the number of terms in the connection sequence increases and there is only one connection inflection point, go to step (431); when the number of terms in the connection sequence increases and there are multiple consecutive connection inflection points, go to step (441); otherwise, write back the correction result of this group of connection sequences to the corresponding multi-segment monotonic change sequence.

[0109] (44) If there are consecutive connection inflection points in the planned point change sequence, then form a group of connection sequences in order from the monotonic sequence of abnormal points adjacent to the left of the first consecutive connection inflection point, the monotonic sequence of abnormal points adjacent to the right of the last consecutive connection inflection point, and the multi-segment monotonic change sequence between the head and tail connection inflection points, and correct this group of connection sequences;

[0110] (441) The terms of the connection sequence are expressed as (P i , No i , T i , Delta i ), where P i is the active power value of this planned point in the daily power generation plan of the power station; No iThis is the item number of the daily power generation plan for the power station, and the value range is [0, 95]; T i This is the duration during which the active power value of this item in the daily power generation plan of the power station remains unchanged; Delta i This is the relative deviation between the serial number of this item in the connection sequence and the serial number of the first consecutive connection inflection point item. If the first consecutive connection inflection point is an upper inflection point, calculate Delta according to formula (5) i If the first consecutive connection inflection point is a lower inflection point, calculate Delta according to formula (6) i The active power values of each item are corrected according to formula (7):

[0111]

[0112] In the formula: i is the serial number of the connection sequence with the number of items being n, and the value range is [0, n - 1]; i 第一个联络拐点 i 左侧相邻联络拐点 and i 左侧相邻联络拐点 are the serial numbers of the first consecutive connection inflection point item and the adjacent connection inflection point item on the left in the connection sequence; j is the connection inflection point ranking number of the adjacent connection inflection point item on the left. For the first consecutive connection inflection point item, j takes the value 0, for the second consecutive connection inflection point item, j takes the value 1, and so on; Delta i is the Delta i value of the adjacent connection inflection point item on the left; P i T i P′ 第一个联络拐点 are the active power value, duration, and active power correction value of the i-th item in the connection sequence respectively; P′ 爬坡 is the active power correction value of the first consecutive connection inflection point of the connection sequence; ΔP

[0113] (442) In the monotonic change sequence to which P′0 belongs, when the deviation between P′0 and the active power value of its previous adjacent item is greater than the output ramp-up upper limit threshold, if the previous adjacent item belongs to a group of abnormal point monotonic sequences, then add this group of abnormal point monotonic sequences as the head to the connection sequence, otherwise add the previous adjacent item as the first item to the connection sequence. If the first item becomes a connection inflection point at this time, then add a group of abnormal point monotonic sequences adjacent to the left of the first item as the head to the connection sequence;

[0114] (443) In the monotonic change sequence to which P′ n-1 belongs, P′ n-1When the deviation of the active power value from the next adjacent item is greater than the output ramp-up upper limit threshold, if the next adjacent item belongs to a monotonic sequence of abnormal points, then this monotonic sequence of abnormal points is added as the tail to the connection sequence; otherwise, the next adjacent item is added as the tail item to the connection sequence. If the tail item becomes a connection inflection point at this time, then a monotonic sequence of abnormal points adjacent to the right of the tail item is added as the tail to the connection sequence;

[0115] (444) When the connection sequence item increases, go to step (441); otherwise, write back the correction result of this connection sequence to the corresponding multi-segment monotonic change sequence.

[0116] (45) If the inflection point is corrected in one of the two adjacent monotonic change sequences, then use the correction value of the inflection point as the correction result of the inflection point in these two adjacent monotonic change sequences.

[0117] Step 5: Synthesize the correction results of each segment of the monotonic change sequence into the correction result of the daily power generation plan of the power station.

[0118] (51) If none of the segments of the monotonic change sequence are corrected, there is no need to correct the daily power generation plan of the power station; otherwise, go to the next step;

[0119] (52) Write back the correction results of each segment of the monotonic change sequence as the correction results of the planned point change sequence, and then expand it into the correction result of the daily power generation plan of the power station.

[0120] The existing planned point change sequence is shown in the following table, and its correction process is described as follows:

[0121] <![CDATA[P i (MW)]]> 6250 5550 6250 7000 7650 8400 9200 8450 7700 6950 6350 <![CDATA[No i > 0 4 12 24 36 44 52 56 60 68 72 <![CDATA[T i > 4 8 12 12 8 8 4 4 8 4 24

[0122] Output ramp-up upper limit threshold ΔP 爬坡 Take the value of 700 MW.

[0123] Step 1:

[0124] Generate three segments of monotonic change sequences in sequence:

[0125] A1: {(6250, 0, 4), (5550, 4, 8)}

[0126] A2: {(5550, 4, 8), (6250, 12, 12), (7000, 24, 12), (7650, 36, 8), (8400, 44, 8), (9200, 52, 4)}

[0127] A3: {(9200, 52, 4), (8450, 56, 4), (7700, 60, 8), (6950, 68, 4), (6350, 72, 24)}

[0128] Step 2:

[0129] The A1 monotonic sequence has no abnormal points and does not need to be corrected.

[0130] A2 contains two groups of initial abnormal point monotonic sequences:

[0131] B21: {(6250, 12, 12), (7000, 24, 12)}

[0132] B22: {(7650, 36, 8), (8400, 44, 8), (9200, 52, 4)}

[0133] The correction result of B21 is: {(5568.75, 4, 8), (6268.75, 12, 12), (6968.75, 24, 12)}

[0134] The correction result of B22 is: {(5580.77, 4, 8), (6280.77, 12, 12), (6980.77, 24, 12), (7680.77, 36, 8), (8380.77, 44, 8), (9080.77, 52, 4)}

[0135] The correction result of B22 covers the entire A2 sequence, and the correction result of A2 is: {(5580.77, 4, 8), (6280.77, 12, 12), (6980.77, 24, 12), (7680.77, 36, 8), (8380.77, 44, 8), (9080.77, 52, 4)}

[0136] A3 contains a group of initial abnormal point monotonic sequences:

[0137] B31: {(9200, 52, 4), (8450, 56, 4), (7700, 60, 8), (6950, 68, 4)}

[0138] The correction result of B31 is: {(9120, 52, 4), (8420, 56, 4), (7720, 60, 8), (7020, 68, 4)}

[0139] The correction result of A3 is: {(9120, 52, 4), (8420, 56, 4), (7720, 60, 8), (7020, 68, 4), (6350, 72, 24)}

[0140] Step 3:

[0141] The inflection point (9200, 52, 4) is corrected in both A2 and A3 and becomes a connection inflection point. Construct a group of connection queues as follows:

[0142] C1: {(5550, 4, 8, 5), (6250, 12, 12, 4), (7000, 24, 12, 3), (7650, 36, 8, 2), (8400, 44, 8, 1), (9200, 52, 4, 0), (8450, 56, 4, 1), (7700, 60, 8, 2), (6950, 68, 4, 3)}

[0143] The connection inflection point (9200, 52, 4) in the connection queue is not repeated, and the P value of each item takes the original value of the corresponding monotonic change sequence, rather than the corrected value of the monotonic change sequence. i The value takes the original value of the corresponding monotonic change sequence, rather than the corrected value of the monotonic change sequence.

[0144] The corrected result of C1 is: {(5585.3, 4, 8, 5), (6285.3, 12, 12, 4), (6985.3, 24, 12, 3), (7685.3, 36, 8, 2), (8385.3, 44, 8, 1), (9085.3, 52, 4, 0), (8385.3, 56, 4, 1), (7685.3, 60, 8, 2), (6985.3, 68, 4, 3)}

[0145] Therefore, the corrected result of A2 after synchronization of the inflection point (9200, 52, 4) is: {(5585.3, 4, 8), (6285.3, 12, 12), (6985.3, 24, 12), (7685.3, 36, 8), (8385.3, 44, 8), (9085.3, 52, 4)}, and the corrected result of A3 is: {(9085.3, 52, 4), (8385.3, 56, 4), (7685.3, 60, 8), (6985.3, 68, 4), (6350, 72, 24)}

[0146] The inflection point (5550, 4, 8) is only corrected in A2. After synchronization, the corrected result of A1 is: {(6250, 0, 4), (5585.3, 4, 8)}

[0147] The comparison results of the planned point change sequence before and after correction are shown in the following table:

[0148] <![CDATA[P i (MW)]]> 6250 5550 6250 7000 7650 8400 9200 8450 7700 6950 6350 <![CDATA[P i ′(MW)]]> 6250 5585.3 6285.3 6985.3 7685.3 8385.3 9085.3 8385.3 7685.3 6985.3 6350 <![CDATA[No i > 0 4 12 24 36 44 52 56 60 68 72 <![CDATA[T i > 4 8 12 12 8 8 4 4 8 4 24

[0149] In one embodiment, a system for correcting a daily power generation plan based on the output ramp rate is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the method for correcting the daily power generation plan based on the output ramp rate described above is implemented.

[0150] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the method for correcting the daily power generation plan based on the output ramp rate described above is implemented.

[0151] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method for correcting the daily power generation plan based on the output ramp rate described above is implemented.

[0152] In one embodiment, a computer program product is provided, including a computer program / instructions. When the computer program / instructions are executed by a processor, the method for correcting the daily power generation plan based on the output ramp rate described above is implemented.

[0153] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0154] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0155] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implements the functions specified in Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0156] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus, causing a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process, so that the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one process or a plurality of processes and / or blocks Figure 1 in one block or a plurality of blocks Figure 1 or steps for implementing the functions specified in one block or a plurality of blocks.

Claims

1. A method for correcting daily power generation plan based on output ramp rate, characterized in that, It includes the following steps: Step 1: Convert the daily power generation plan of the power station into a sequence of planned point changes; Step 2: Decompose the sequence of planned point changes into multiple consecutive monotonically changing sequences. Each monotonically changing sequence is a consecutive subsequence of the sequence of planned point changes. The monotonicity of two consecutive monotonically changing sequences is opposite and there is an inflection point coincidence item; Step 3: Based on the output ramp rate constraint, check and correct each monotonically changing sequence, including: (31) Check each item of the monotonically changing sequence in turn. When the deviation between the active power value of a certain item and the active power value of the subsequent adjacent item is greater than the output ramp upper limit threshold, both the current item and the adjacent item are marked as abnormal points; (32) If there are no abnormal points after traversing the current monotonically changing sequence, do not correct the current monotonically changing sequence; otherwise, go to the next step; (33) Form a group of initial abnormal point monotonic sequences with all consecutive abnormal points. Each group of initial abnormal point monotonic sequences is a consecutive subsequence of the monotonically changing sequence. Each monotonically changing sequence can contain multiple groups of initial abnormal point monotonic sequences; (34) Correct each group of initial abnormal point monotonic sequences in turn; if the correction result of a certain group of initial abnormal point monotonic sequences covers the subsequent groups of initial abnormal point monotonic sequences, do not correct the covered subsequent groups of initial abnormal point monotonic sequences anymore; Step 4: Check all inflection point correction situations and synchronize the correction results; Step 5: Synthesize the correction results of each monotonically changing sequence into the correction result of the daily power generation plan of the power station.

2. The method for correcting daily power generation plan based on output ramp rate according to claim 1, characterized in that, Converting the daily power generation plan of the power station into a sequence of planned point changes includes: sequentially extracting from the daily power generation plan of the power station the planned points that are different from the active power value of the previous planned point to form a sequence of planned point changes. The items in the sequence of planned point changes are expressed as (P i , No i , T i ), where P i is the active power value of the i-th item in the sequence; No i is the point number of the i-th item corresponding planned point in the daily power generation plan of the power station; T i is the duration during which the active power value of the i-th item corresponding planned point remains unchanged in the daily power generation plan of the power station.

3. The method for correcting the daily power generation plan based on the output ramp rate according to claim 1, characterized in that: When checking and correcting each monotonically changing sequence, it also includes the constraint that the daily power generation amount remains unchanged before and after the correction of the daily power generation plan.

4. The method for correcting the daily power generation plan based on the output ramp rate according to claim 1, characterized in that Correct each group of initial abnormal point monotonic sequences in turn, including: (341) Calculate the active power correction value, and the calculation formula is: When the initial abnormal point monotonic sequence is a monotonically decreasing sequence: When the initial abnormal point monotonic sequence is a monotonically increasing sequence: Where: n is the number of terms, i is the sequence number, and its value range is [0, n - 1]; P i , T i , P' i are respectively the active power value of the i-th item in the sequence, the duration during which the active power value of the planned point corresponding to the i-th item in the sequence remains unchanged in the daily power generation plan of the power station, and the active power correction value of the i-th item in the sequence; ΔP 爬坡 is the upper threshold of output ramp rate; In the monotonically changing sequence to which the active power correction value P′0 of the first item belongs, when the deviation between the active power correction value P′0 of the first item and the active power value of its previous adjacent item is greater than the output ramp upper limit threshold, if the previous adjacent item belongs to a group of abnormal point monotonic sequences A, then add the abnormal point monotonic sequence A as the head to the current abnormal point monotonic sequence, otherwise add the previous adjacent item as the first item to the current abnormal point monotonic sequence; At the tail active power correction value P′ n-1 In the monotonic change sequence to which it belongs, when the tail active power correction value P′ n-1 If the deviation between its active power value and the active power value of the next adjacent item is greater than the output ramp-up upper limit threshold, if the next adjacent item belongs to a monotonic sequence B of abnormal points, then the monotonic sequence B of abnormal points is added as the tail to the current monotonic sequence of abnormal points, otherwise the next adjacent item is added as the tail to the current monotonic sequence of abnormal points; (342) When the number of items in the abnormal point monotonic sequence increases, go to step (341), otherwise use the current correction value of the abnormal point monotonic sequence as the corrected result.

5. The method for correcting the daily power generation plan based on the output ramp rate according to claim 1, wherein Check all inflection point correction situations and synchronize the correction results, including: (41) If the inflection point is not corrected in both adjacent monotonically changing sequences, do not synchronize the correction results; (42) If the inflection point is corrected in both adjacent monotonically changing sequences, mark the current inflection point as a connection inflection point; (43) If there are discontinuous connection inflection points in the sequence of planned point changes, form a group of first connection sequences in order with two groups of abnormal point monotonic sequences adjacent to the discontinuous connection inflection points, and correct the first connection sequences; (44) If there are consecutive connection inflection points in the planned point change sequence, the monotonic sequence of abnormal points adjacent to the left of the first consecutive connection inflection point, the monotonic sequence of abnormal points adjacent to the right of the last consecutive connection inflection point, and the multiple monotonic change sequences between the head and tail connection inflection points are sequentially formed into a group of second connection sequences, and the second connection sequences are corrected; (45) If the inflection point is corrected in one of the two adjacent monotonic change sequences, the correction value of the inflection point is used as the correction result.

6. The method for correcting the daily power generation plan based on the output ramp rate according to claim 5, wherein: Correcting the first connection sequence includes the following steps: The first connection sequence item is expressed as (P i , No i , T i , Delta i ), where P i is the active power value of the i-th item in the sequence, which is the active power value of the planned point corresponding to the i-th item in the daily power generation plan of the power station, rather than the active power correction value; No i is the point number of the planned point corresponding to the i-th item in the daily power generation plan of the power station; T i is the duration during which the active power value of the planned point corresponding to the i-th item remains unchanged in the daily power generation plan of the power station; Delta i is the deviation between the serial number of the i-th item in the first connection sequence and the serial number of the connection inflection point item. If the connection inflection point is an upper inflection point, Delta i takes a positive value. If the connection inflection point is a lower inflection point, Delta i takes a negative value; correct the active power values of each item in the first connection sequence, and the calculation formula is: Where n is the number of terms, i is the sequence number of the sequence, and the value range is [0, n - 1]; P i , T i , P i ′ are respectively the active power value, duration, and active power correction value of the i-th term of the first connection sequence; P′ 联络拐点 is the active power correction value at the connection inflection point of the first connection sequence; ΔP 爬坡 is the upper threshold of the output ramp. In the monotonic change sequence to which the first active power correction value P0′ belongs, when the deviation between P0′ and the active power value of its previous adjacent item is greater than the output ramp-up upper limit threshold, if the previous adjacent item belongs to a group of monotonic sequences of abnormal points A, the monotonic sequence of abnormal points A is added to the first connection sequence as the head, otherwise the previous adjacent item is added to the first connection sequence as the head; if the head becomes a connection inflection point, a group of monotonic sequences of abnormal points adjacent to the left of the head is added to the first connection sequence as the head; In the corrected value P' of the active power of the last item n-1 in the monotonically changing sequence to which it belongs, P' n-1 when the deviation between its active power value and the active power value of the next adjacent item is greater than the output ramp-up upper limit threshold, if the next adjacent item belongs to a set of abnormal point monotonic sequences B, then the abnormal point monotonic sequence B is added as the tail to the first connection sequence, otherwise the next adjacent item is added as the tail to the first connection sequence; if the tail item becomes a connection inflection point, then a set of abnormal point monotonic sequences adjacent to the right of the tail item is added as the tail to the first connection sequence; (432) When the number of items in the first connection sequence increases and there is only one connection inflection point, go to step (431); when the number of items in the first connection sequence increases and there are multiple consecutive connection inflection points, go to step (441); otherwise, the current corrected value of the first connection sequence is used as the correction result; Correcting the second connection sequence includes the following steps: (441) The second connection sequence item is expressed as (P i , No i , T i , Delta i ), where P i is the active power value of the i-th item in the sequence, which is the active power value of the planned point corresponding to the i-th item in the daily power generation plan of the power station, rather than the active power correction value; No i is the point number of the planned point corresponding to the i-th item in the daily power generation plan of the power station; T i is the duration during which the active power value of the planned point corresponding to the i-th item remains unchanged in the daily power generation plan of the power station; Delta i is the relative deviation between the sequence number of the i-th item in the second connection sequence and the sequence number of the first continuous connection inflection point item. If the first continuous connection inflection point is an upper inflection point, calculate Delta i as follows: If the first consecutive connection inflection point is a downward inflection point, calculate Delta i as follows: Correct the active power value of each item, and the calculation formula is: Where: n is the number of terms, i is the sequence number of the sequence, and its value range is [0, n - 1]; i 第一个联络拐点 and i 左侧相邻联络拐点 are the sequence numbers of the first consecutive connection inflection point terms in the second connection sequence and the connection inflection point terms adjacent to the left of the i-th term in the second connection sequence; j is the connection inflection point ranking number of the connection inflection point term adjacent to the left of the i-th term in the second connection sequence. The value of j for the first consecutive connection inflection point term is 0, the value of j for the second consecutive connection inflection point term is 1, and so on; Delta 左侧相邻联络拐点 is the Delta i value of the connection inflection point term adjacent to the left of the i-th term in the second connection sequence; P i and T i and P i ' are the active power value, duration, and active power correction value of the i-th term in the second connection sequence respectively; P' 第一个联络拐点 is the active power correction value of the first consecutive connection inflection point in the second connection sequence; ΔP 爬坡 is the output ramp-up upper limit threshold. In the monotonic change sequence to which the first active power correction value P0′ belongs, when the deviation between the first active power correction value P0′ and the active power value of its previous adjacent item is greater than the output ramp-up upper limit threshold, if the previous adjacent item belongs to a group of monotonic sequences of abnormal points A, the monotonic sequence of abnormal points A is added to the second connection sequence as the head, otherwise the previous adjacent item is added to the second connection sequence as the head; if the head becomes a connection inflection point, a group of monotonic sequences of abnormal points adjacent to the left of the head is added to the second connection sequence as the head; In the corrected value P' of the active power of the last item n-1 in the monotonically changing sequence to which it belongs, when the corrected value P' of the active power of the last item n-1 has a deviation greater than the output ramp-up upper limit threshold from the active power value of the next adjacent item, if the next adjacent item belongs to a monotonic sequence B of abnormal points, then the monotonic sequence B of abnormal points is added as the tail to the second connection sequence, otherwise the next adjacent item is added as the tail to the second connection sequence; if the tail item becomes a connection inflection point, then a group of monotonic sequences of abnormal points adjacent to the right of the tail item is added as the tail to the second connection sequence; (442) When the number of items in the second connection sequence increases, go to step (441); otherwise, the current corrected value of the second connection sequence is used as the corrected result.

7. A system for correcting daily power generation plans based on output ramp rate, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method for correcting the daily power generation plan based on the output ramp rate described in any one of claims 1 to 6.

8. A computer device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method for correcting the daily power generation plan based on the output ramp rate described in any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the method for correcting the daily power generation plan based on the output ramp rate described in any one of claims 1 to 6.

10. A computer program product, comprising a computer program and / or instructions, characterized in that, When the computer program and / or instruction is executed by the processor, it implements the method for correcting the daily power generation plan based on the output ramp rate described in any one of claims 1 to 6.

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