A real-time scheduling method and system for safe transmission of water-light complementary channels

Abstract

The present invention discloses a real-time scheduling method and system for the safe transmission of a hydro-photovoltaic complementary channel, relating to the technical field of renewable energy power generation scheduling. The method comprises the following steps: obtaining the AGC adjustable capacity, preset scheduling strategy, and superior scheduling total output value of the hydro-photovoltaic complementary combined power generation system; calculating the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic power station based on the AGC adjustable capacity and the preset scheduling strategy; calculating the adjustable total capacity interval of the hydro-photovoltaic complementary combined power generation system based on the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic power station; and determining a first output value allocated to the hydropower station and a second output value allocated to the photovoltaic power station based on the preset scheduling strategy, the superior scheduling total output value, and the adjustable total capacity interval. The present invention can effectively improve the reliability of the safe transmission of renewable energy power generation and the safe operation of hydropower units in hydro-photovoltaic complementary scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of renewable energy power generation scheduling, and in particular to a real-time scheduling method and system for safe transmission of a water-photovoltaic complementary channel. Background Art

[0002] In the context of promoting energy conservation and emission reduction, China is vigorously developing hydropower-solar hybrid projects, using hydropower to complement photovoltaic power, reduce the overall cost of renewable energy development, and improve the utilization rate of transmission channels. Currently, existing hydropower-solar hybrid scheduling methods primarily focus on day-ahead and intraday hydropower-solar hybridization and enhance photovoltaic absorption. These methods fail to consider issues such as the output of hydropower station ecological units, avoiding hydropower station vibration zones, and untimely updates of the adjustable capacity of hydropower-solar hybrid combined power generation systems. This reduces the reliability of safe transmission of renewable energy power and the safe operation of hydropower units in hydropower-solar hybrid scenarios. Summary of the Invention

[0003] The purpose of the present invention is to provide a real-time scheduling method and system for the safe transmission of water-light complementary channels in order to solve at least one of the above technical problems.

[0004] In the first aspect, an embodiment of the present invention provides a real-time scheduling method for the safe transmission of a hydro-photovoltaic complementary channel, which is applied to a hydro-photovoltaic complementary combined power generation system; the method includes: obtaining the AGC adjustable capacity, preset scheduling strategy and superior scheduling total output value of the hydro-photovoltaic complementary combined power generation system; the AGC adjustable capacity includes the AGC adjustable capacity of the hydropower station and the AGC adjustable capacity of the photovoltaic power station; the preset scheduling strategy includes a photovoltaic priority scheduling strategy and a hydropower priority scheduling strategy; based on the AGC adjustable capacity and the preset scheduling strategy, the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic power station are calculated respectively; based on the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic power station, the adjustable total capacity interval of the hydro-photovoltaic complementary combined power generation system is calculated; based on the preset scheduling strategy, the superior scheduling total output value and the adjustable total capacity interval, the first output value allocated to the hydropower station and the second output value allocated to the photovoltaic power station are determined.

[0005] Furthermore, the AGC adjustable capacity of the hydropower station includes: the upper limit value of the AGC adjustable capacity of the entire hydropower station, the forced output of the ecological units of the entire hydropower station, and the upper and lower limit values ​​of multiple groups of joint vibration zones of the entire hydropower station; the AGC adjustable capacity of the photovoltaic power station includes: the upper limit value of the AGC adjustable capacity of the entire photovoltaic power station and the lower limit value of the AGC adjustable capacity of the entire plant.

[0006] Furthermore, if the preset scheduling strategy is the photovoltaic priority scheduling strategy, the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic power station are calculated respectively, including: calculating the upper limit and lower limit of the adjustable capacity range of the photovoltaic power station respectively by the following calculation formula:

[0007] ,

[0008] ,

[0009] Where, and are the upper limit and lower limit of the adjustable capacity range of the photovoltaic power station, and are the upper limit and lower limit of the AGC adjustable capacity of the whole plant of the j-th photovoltaic power station, respectively, and N is the total number of the photovoltaic power stations. The upper limit and lower limit of the adjustable capacity range of the hydropower station are calculated respectively by the following calculation formula:

[0010]

[0011]

[0012] Where, is the upper limit of the adjustable capacity range of the hydropower station after correction according to the photovoltaic priority scheduling strategy, is the lower limit of the adjustable capacity range of the hydropower station, is the installed capacity of the hydropower station, is the upper limit of the AGC adjustable capacity of the hydropower station, The ecological units of the entire hydropower station are forced to output power; wherein, if the upper limit value of the adjustable capacity interval of the hydropower station is within at least one target interval of multiple groups of joint vibration zones of the entire hydropower station, the upper limit value of the adjustable capacity interval of the hydropower station is determined as the lowest lower limit value of the at least one target interval.

[0013] Furthermore, if the preset scheduling strategy is the hydropower priority scheduling strategy, the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic power station are calculated respectively, including: calculating the upper limit and lower limit of the adjustable capacity range of the hydropower station respectively by the following calculation formula:

[0014]

[0015]

[0016] Where, and are the upper limit and lower limit of the adjustable capacity range of the hydropower station, is the upper limit of the AGC adjustable capacity of the hydropower station, The forced output of the entire ecological unit of the hydropower station is calculated; the upper limit and lower limit of the adjustable capacity range of the photovoltaic power station are calculated respectively by the following calculation formula:

[0017]

[0018]

[0019] Where, and are the upper limit and lower limit of the adjustable capacity range of the photovoltaic power station, and are the upper limit and lower limit of the AGC adjustable capacity of the whole plant of the j-th photovoltaic power station, respectively, and N is the total number of the photovoltaic power stations; is the installed capacity of the hydropower station.

[0020] Furthermore, based on the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic power station, the adjustable total capacity interval of the hydro-photovoltaic complementary combined power generation system is calculated, including: calculating the upper limit and lower limit of the adjustable total capacity interval of the hydro-photovoltaic complementary combined power generation system respectively by the following calculation formula:

[0021]

[0022]

[0023] Where, and are respectively the upper limit and lower limit of the adjustable total capacity range of the hydro-photovoltaic complementary combined power generation system.

[0024] Furthermore, if the preset scheduling strategy is the photovoltaic priority scheduling strategy, the first output value allocated to the hydropower station and the second output value allocated to the photovoltaic power station are determined based on the preset scheduling strategy, the upper-level scheduling total output value and the adjustable total capacity interval, including: if the difference between the upper-level scheduling total output value and the lower limit value of the adjustable capacity interval of the hydropower station is less than the upper limit value of the adjustable capacity interval of the photovoltaic power station, the lower limit value of the adjustable capacity interval of the hydropower station is determined as the first output value, and the upper-level scheduling total output value and the adjustable capacity interval of the hydropower station are determined as the lower limit value of the adjustable capacity interval of the photovoltaic power station. The difference between the lower limit values ​​of the upper and lower intervals is determined as the second output value; if the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the hydropower station is greater than or equal to the upper limit value of the adjustable capacity interval of the photovoltaic power station, the upper limit value of the adjustable capacity interval of the photovoltaic power station is determined as the second output value, and the difference between the total output value of the upper-level dispatching and the upper limit value of the adjustable capacity interval of the photovoltaic power station is determined as the first output value; wherein, the output value of each photovoltaic power station is allocated according to the proportion of the upper limit value of the adjustable capacity of the whole plant AGC of the corresponding photovoltaic power station.

[0025] Further, if the preset scheduling strategy is the hydropower priority scheduling strategy, the first output value allocated to the hydropower station and the second output value allocated to the photovoltaic power station are determined based on the preset scheduling strategy, the superior scheduling total output value and the adjustable total capacity interval, including: if the difference between the superior scheduling total output value and the lower limit value of the adjustable capacity interval of the photovoltaic power station is less than the upper limit value of the adjustable capacity interval of the hydropower station, the lower limit value of the adjustable capacity interval of the photovoltaic power station is determined as the second output value, and the difference between the superior scheduling total output value and the lower limit value of the adjustable capacity interval of the photovoltaic power station is determined as the first output value; if the difference between the superior scheduling total output value and the lower limit value of the adjustable capacity interval of the photovoltaic power station is greater than or equal to the upper limit value of the adjustable capacity interval of the hydropower station, the upper limit value of the adjustable capacity interval of the hydropower station is determined as the first output value, and the difference between the superior scheduling total output value and the first output value is determined as the second output value.

[0026] Furthermore, if the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the photovoltaic power station is less than the upper limit value of the adjustable capacity interval of the hydropower station, then the output value of each photovoltaic power station is the lower limit value of the AGC adjustable capacity of the corresponding photovoltaic power station; if the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the photovoltaic power station is greater than or equal to the upper limit value of the adjustable capacity interval of the hydropower station, then the output value of each photovoltaic power station is allocated according to the proportion of the upper limit value of the AGC adjustable capacity of the corresponding photovoltaic power station.

[0027] In a second aspect, an embodiment of the present invention further provides a real-time scheduling system for the safe delivery of a hydro-photovoltaic complementary channel, which is applied to a hydro-photovoltaic complementary combined power generation system; the system comprises: an acquisition module, a first calculation module, a second calculation module and a determination module; wherein the acquisition module is used to acquire the AGC adjustable capacity, preset scheduling strategy and superior scheduling total output value of the hydro-photovoltaic complementary combined power generation system; the AGC adjustable capacity includes the AGC adjustable capacity of the hydropower station and the AGC adjustable capacity of the photovoltaic power station; the preset scheduling strategy includes the photovoltaic priority scheduling strategy and the hydropower priority scheduling strategy; the first calculation module is used to calculate the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic power station respectively based on the AGC adjustable capacity and the preset scheduling strategy; the second calculation module is used to calculate the adjustable total capacity interval of the hydro-photovoltaic complementary combined power generation system based on the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic power station; the determination module is used to determine the first output value allocated to the hydropower station and the second output value allocated to the photovoltaic power station based on the preset scheduling strategy, the superior scheduling total output value and the adjustable total capacity interval.

[0028] In a third aspect, an embodiment of the present invention further provides an electronic device comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the method provided in the embodiment of the present invention when executing the computer program.

[0029] The present invention provides a real-time scheduling method and system for the safe transmission of water-photovoltaic complementary channels. Taking into account constraints such as the output of the ecological units of the hydropower station and avoiding the joint vibration zone of the hydropower station, the adjustable capacity of the water-photovoltaic complementary system is updated in real time. This can effectively improve the reliability of the safe transmission of new energy power generation and the safe operation of hydropower units in the water-photovoltaic complementary scenario, and alleviate the technical problem of low reliability of the safe transmission of new energy power generation and the safe operation of hydropower units in the water-photovoltaic complementary scenario in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 A flowchart of a real-time scheduling method for secure transmission of a water-light complementary channel provided by an embodiment of the present invention;

[0032] Figure 2A schematic diagram of a real-time scheduling system for secure transmission of a water-light complementary channel provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1

[0035] Figure 1 This is a flow chart of a real-time scheduling method for safe transmission of a water-photovoltaic complementary channel according to an embodiment of the present invention, which is applied to a water-photovoltaic complementary combined power generation system. Figure 1 As shown, the method specifically includes the following steps:

[0036] Step S102, obtaining the AGC adjustable capacity, preset scheduling strategy and superior scheduling total output value of the hydro-photovoltaic complementary combined power generation system; the AGC adjustable capacity includes the AGC adjustable capacity of the hydropower station and the AGC adjustable capacity of the photovoltaic power station; the preset scheduling strategy includes the photovoltaic priority scheduling strategy and the hydropower priority scheduling strategy.

[0037] Step S104 : Based on the AGC adjustable capacity and the preset dispatching strategy, the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic power station are calculated respectively.

[0038] Step S106 , calculating the total adjustable capacity range of the hydropower station and the photovoltaic station based on the adjustable capacity range of the hydropower station and the photovoltaic station.

[0039] Step S108 : determining a first output value allocated to the hydropower station and a second output value allocated to the photovoltaic power station based on a preset scheduling strategy, a superior scheduling total output value, and an adjustable total capacity range.

[0040] AGC (Automatic Generation Control) in the embodiments of this invention is a key function in energy management systems (EMSs). It controls the output of frequency-regulated generators to meet changing user power demands and maintain economical system operation. AGC regulates the active power output of multiple generators at different power plants within a power system to respond to load fluctuations. Power supplies with fast regulation rates and high regulation accuracy can help power grids more efficiently achieve AGC control objectives.

[0041] Optionally, the AGC adjustable capacity of the hydropower station includes: the upper limit of the AGC adjustable capacity of the entire hydropower station , forced output of the entire hydropower station's ecological units , the upper limit of multiple groups of combined vibration zones of the hydropower station and lower limit ; Wherein, i represents the i-th group of plant-wide joint vibration zones.

[0042] Optionally, the AGC adjustable capacity of the photovoltaic power station includes: the upper limit of the AGC adjustable capacity of the photovoltaic power station and the lower limit of the plant-wide AGC adjustable capacity ; where j represents the jth photovoltaic power station.

[0043] Specifically, if the preset scheduling strategy is the photovoltaic priority scheduling strategy, step S104 further includes the following steps:

[0044] The upper and lower limits of the adjustable capacity range of the photovoltaic power station are calculated using the following calculation formula:

[0045]

[0046]

[0047] Where, and are the upper and lower limits of the adjustable capacity range of the photovoltaic power station, respectively, and N is the total number of photovoltaic power stations;

[0048] The upper and lower limits of the adjustable capacity range of the hydropower station are calculated using the following calculation formulas:

[0049]

[0050]

[0051] Where, is the upper limit of the adjustable capacity range of the hydropower station after correction based on the photovoltaic priority dispatching strategy, is the lower limit of the adjustable capacity range of the hydropower station, that is, the forced output of the ecological units of the whole plant ; is the installed capacity of the hydropower station (i.e. the upper limit of the output that the channel can safely deliver); Min() indicates the minimum value.

[0052] If the upper limit of the adjustable capacity interval of the hydropower station is within at least one target interval of the multiple groups of combined vibration zones of the hydropower station, the upper limit of the adjustable capacity interval of the hydropower station is determined to be the lowest lower limit of at least one target interval to avoid the actual output value being within the vibration zone. It can be expressed as:

[0053] if and ,but .

[0054] Wherein, i represents the i-th group of vibration zones of the hydropower station, and N represents the total number of vibration zones.

[0055] Specifically, if the preset scheduling strategy is the hydropower priority scheduling strategy, step S104 further includes the following steps:

[0056] The upper and lower limits of the adjustable capacity range of the hydropower station are calculated using the following calculation formulas:

[0057]

[0058]

[0059] The upper and lower limits of the adjustable capacity range of the photovoltaic power station are calculated using the following calculation formula:

[0060]

[0061]

[0062] Specifically, step S106 further includes the following steps: calculating the upper limit and lower limit of the adjustable total capacity range of the hydro-photovoltaic hybrid power generation system respectively by the following calculation formula:

[0063]

[0064]

[0065] Where, and They are respectively the upper and lower limits of the adjustable total capacity range of the hydro-photovoltaic complementary power generation system.

[0066] In step S108, if the preset scheduling strategy is the photovoltaic priority scheduling strategy, the first output value of the hydropower station and the second output value of the photovoltaic power station are allocated in the following manner:

[0067] If the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the hydropower station is less than the upper limit value of the adjustable capacity interval of the photovoltaic power station, the lower limit value of the adjustable capacity interval of the hydropower station is determined as the first output value, and the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the hydropower station is determined as the second output value;

[0068] If the difference between the total output value of the upper-level dispatching and the lower limit of the adjustable capacity interval of the hydropower station is greater than or equal to the upper limit of the adjustable capacity interval of the photovoltaic power station, the upper limit of the adjustable capacity interval of the photovoltaic power station is determined as the second output value, and the difference between the total output value of the upper-level dispatching and the upper limit of the adjustable capacity interval of the photovoltaic power station is determined as the first output value;

[0069] The above allocation process can be expressed as:

[0070] if ,but:

[0071] ,

[0072] ,

[0073] otherwise:

[0074] ,

[0075] ,

[0076] in, is the total output value of the superior dispatch, It is the first output value sent from the centralized control station to the hydropower station. The total secondary output value allocated by the centralized control station to multiple photovoltaic power stations. Under the photovoltaic priority scheduling strategy, the output is allocated to photovoltaic power stations first, while ensuring the minimum output of hydropower stations.

[0077] Specifically, the output value of each photovoltaic power station is allocated according to the proportion of the upper limit of the AGC adjustable capacity of the corresponding photovoltaic power station. The specific allocation calculation formula is as follows:

[0078]

[0079] in, Represents the allocated output value of the j-th photovoltaic power station.

[0080] In step S108, if the preset scheduling strategy is the hydropower priority scheduling strategy, the first output value of the hydropower station and the second output value of the photovoltaic power station are allocated in the following manner:

[0081] If the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the photovoltaic power station is less than the upper limit value of the adjustable capacity interval of the hydropower station, the lower limit value of the adjustable capacity interval of the photovoltaic power station is determined as the second output value, and the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the photovoltaic power station is determined as the first output value;

[0082] If the difference between the total output value of the superior dispatching and the lower limit value of the adjustable capacity range of the photovoltaic power station is greater than or equal to the upper limit value of the adjustable capacity range of the hydropower station, the upper limit value of the adjustable capacity range of the hydropower station is determined as the first output value, and the difference between the total output value of the superior dispatching and the first output value is determined as the second output value.

[0083] The above allocation process can be expressed as:

[0084] if ,but:

[0085] ,

[0086] ,

[0087] otherwise:

[0088] ,

[0089] ,

[0090] Under the hydropower priority scheduling strategy, the output is allocated to the hydropower station on a priority basis while ensuring the minimum output of the photovoltaic power station.

[0091] Among them, if the difference between the total output value of the upper-level dispatch and the lower limit of the adjustable capacity range of the PV power station is less than the upper limit of the adjustable capacity range of the hydropower station, the output value of each PV power station is the lower limit of the AGC adjustable capacity of the corresponding PV power station:

[0092]

[0093] If the difference between the total output value of the upper-level dispatch and the lower limit of the adjustable capacity range of the PV power station is greater than or equal to the upper limit of the adjustable capacity range of the hydropower station, the output value of each PV power station is distributed according to the proportion of the upper limit of the AGC adjustable capacity of the corresponding PV power station:

[0094]

[0095] From the above description, it can be seen that the present invention provides a real-time scheduling method for the safe transmission of water-photovoltaic complementary channels, which takes into account constraints such as the output of the ecological units of the hydropower station and avoiding the joint vibration zone of the hydropower station, and updates the adjustable capacity of the water-photovoltaic complementary system in real time. It can effectively improve the reliability of the safe transmission of new energy power generation and the safe operation of the hydropower units in the water-photovoltaic complementary scenario, and alleviates the technical problems in the prior art that the reliability of the safe transmission of new energy power generation and the safe operation of the hydropower units in the water-photovoltaic complementary scenario is reduced due to the failure to consider the output of the ecological units of the hydropower station, avoid the vibration zone of the hydropower station, and the untimely update of the adjustable capacity of the water-photovoltaic complementary combined power generation system.

[0096] Example 2

[0097] This embodiment of the present invention uses a regional hydro-photovoltaic hybrid centralized control station system as an example. The system includes a superior dispatching system, a hydro-photovoltaic hybrid centralized control station system, a hydropower station, and two photovoltaic power stations. The hydropower station has an installed capacity of 355 MW, and each photovoltaic power station has an installed capacity of 50 MW.

[0098] Specifically, taking the photovoltaic priority scheduling strategy as an example, an embodiment of the present invention provides a real-time scheduling method for secure transmission of a water-photovoltaic complementary channel, including the following steps:

[0099] (1) The centralized control station collects the AGC adjustable capacity of hydropower stations and photovoltaic power stations:

[0100] A. The upper limit of the AGC adjustable capacity of the entire hydropower station is 300MW;

[0101] B. Collect the forced output of 10MW of the entire hydropower station's ecological units;

[0102] C. The upper limit value of the first group of joint vibration zones of the hydropower station is 100MW and the lower limit value is 90MW. The upper limit value of the second group of joint vibration zones of the hydropower station is 150MW and the lower limit value is 140MW.

[0103] D. Collect the upper limit value of the AGC adjustable capacity of the entire plant of the first photovoltaic power station, which is 50MW, and the lower limit value of 5MW. Collect the upper limit value of the AGC adjustable capacity of the entire plant of the second photovoltaic power station, which is 50MW, and the lower limit value of 5MW.

[0104] (2) According to the photovoltaic priority scheduling strategy, calculate the adjustable total capacity range and send it to the upper-level scheduling:

[0105] A. The upper limit of the adjustable capacity range of the photovoltaic power station is 50MW+50MW=100MW;

[0106] B. The lower limit of the adjustable capacity range of the photovoltaic power station is 5MW+5MW=10MW;

[0107] C. The upper limit of the adjustable capacity range of the hydropower station is Min(300MW, 355MW-100MW)=255MW;

[0108] D. The lower limit of the adjustable capacity range of the hydropower station is 10MW;

[0109] E. The upper limit of the adjustable total capacity range for upstream dispatch is 255MW+100MW=355MW;

[0110] F. The lower limit of the adjustable total capacity range for upstream scheduling is 10MW+10MW=20MW.

[0111] (3) Receive the total output value from the upper level dispatcher and allocate the output value to the hydropower station and photovoltaic power station according to the photovoltaic priority dispatching strategy:

[0112] A. The total output value received by the centralized control station from the upper level is 140MW;

[0113] B. Due to the PV priority scheduling strategy, the total output allocated to the two PV plants is 100 MW;

[0114] C. The output allocated to the hydropower station is 140MW-100MW=40MW.

[0115] Example 3

[0116] Figure 2 This is a schematic diagram of a real-time scheduling system for safe transmission of a water-photovoltaic complementary channel according to an embodiment of the present invention, which is applied to a water-photovoltaic complementary combined power generation system. Figure 2 As shown, the system includes: an acquisition module 10 , a first calculation module 20 , a second calculation module 30 and a determination module 40 .

[0117] Specifically, the acquisition module 10 is used to obtain the AGC adjustable capacity, preset scheduling strategy and superior scheduling total output value of the hydro-photovoltaic complementary combined power generation system; the AGC adjustable capacity includes the AGC adjustable capacity of the hydropower station and the AGC adjustable capacity of the photovoltaic power station; the preset scheduling strategy includes the photovoltaic priority scheduling strategy and the hydropower priority scheduling strategy.

[0118] The first calculation module 20 is used to calculate the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic power station based on the AGC adjustable capacity and the preset scheduling strategy.

[0119] The second calculation module 30 is used to calculate the adjustable total capacity range of the hydropower station and the photovoltaic station based on the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic station.

[0120] The determination module 40 is used to determine the first output value allocated to the hydropower station and the second output value allocated to the photovoltaic power station based on the preset scheduling strategy, the upper scheduling total output value and the adjustable total capacity range.

[0121] The AGC adjustable capacity of a hydropower station includes: the upper limit of the AGC adjustable capacity of the entire hydropower station, the forced output of the ecological units of the entire hydropower station, and the upper and lower limits of multiple groups of joint vibration zones of the entire hydropower station;

[0122] The AGC adjustable capacity of a photovoltaic power station includes: an upper limit value of the AGC adjustable capacity of the entire photovoltaic power station and a lower limit value of the AGC adjustable capacity of the entire photovoltaic power station.

[0123] If the preset scheduling strategy is the photovoltaic priority scheduling strategy, the first calculation module 20 is further configured to:

[0124] The upper and lower limits of the adjustable capacity range of the photovoltaic power station are calculated using the following calculation formula:

[0125]

[0126]

[0127] The upper and lower limits of the adjustable capacity range of the hydropower station are calculated using the following calculation formulas:

[0128]

[0129]

[0130] Among them, if the upper limit value of the adjustable capacity interval of the hydropower station is within at least one target interval of multiple groups of plant-wide joint vibration zones of the hydropower station, the upper limit value of the adjustable capacity interval of the hydropower station is determined as the lowest lower limit value of at least one target interval.

[0131] If the preset scheduling strategy is the hydropower priority scheduling strategy, the first calculation module 20 is further configured to:

[0132] The upper and lower limits of the adjustable capacity range of the hydropower station are calculated using the following calculation formulas:

[0133]

[0134]

[0135] The upper and lower limits of the adjustable capacity range of the photovoltaic power station are calculated using the following calculation formula:

[0136]

[0137]

[0138] Specifically, the second calculation module 30 is further configured to calculate the upper limit and lower limit of the adjustable total capacity range of the hydro-photovoltaic complementary combined power generation system using the following calculation formulas:

[0139]

[0140]

[0141] Specifically, if the preset scheduling strategy is the photovoltaic priority scheduling strategy, the determination module 40 is further configured to:

[0142] If the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the hydropower station is less than the upper limit value of the adjustable capacity interval of the photovoltaic power station, the lower limit value of the adjustable capacity interval of the hydropower station is determined as the first output value, and the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the hydropower station is determined as the second output value;

[0143] If the difference between the total output value of the upper-level dispatching and the lower limit of the adjustable capacity interval of the hydropower station is greater than or equal to the upper limit of the adjustable capacity interval of the photovoltaic power station, the upper limit of the adjustable capacity interval of the photovoltaic power station is determined as the second output value, and the difference between the total output value of the upper-level dispatching and the upper limit of the adjustable capacity interval of the photovoltaic power station is determined as the first output value;

[0144] The output power of each photovoltaic power station is allocated according to the ratio of the upper limit of the AGC adjustable capacity of the corresponding photovoltaic power station.

[0145] Specifically, if the preset scheduling strategy is the hydropower priority scheduling strategy, the determination module 40 is further configured to:

[0146] If the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the photovoltaic power station is less than the upper limit value of the adjustable capacity interval of the hydropower station, the lower limit value of the adjustable capacity interval of the photovoltaic power station is determined as the second output value, and the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity interval of the photovoltaic power station is determined as the first output value;

[0147] If the difference between the total output value of the superior dispatching and the lower limit value of the adjustable capacity range of the photovoltaic power station is greater than or equal to the upper limit value of the adjustable capacity range of the hydropower station, the upper limit value of the adjustable capacity range of the hydropower station is determined as the first output value, and the difference between the total output value of the superior dispatching and the first output value is determined as the second output value.

[0148] Among them, if the difference between the total output value of the upper-level dispatch and the lower limit of the adjustable capacity range of the PV power station is less than the upper limit of the adjustable capacity range of the hydropower station, the output value of each PV power station is the lower limit of the AGC adjustable capacity of the corresponding PV power station;

[0149] If the difference between the total output value of the upper-level dispatching and the lower limit of the adjustable capacity range of the PV power station is greater than or equal to the upper limit of the adjustable capacity range of the hydropower station, the output value of each PV power station will be distributed according to the proportion of the upper limit of the AGC adjustable capacity of the corresponding PV power station.

[0150] The present invention also provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method provided in the embodiment of the present invention when executing the computer program.

[0151] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0152] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A real-time scheduling method for safe transmission of water-light complementary channels, characterized in that: Applied to a water-photovoltaic complementary combined power generation system; the method comprises: Obtaining the AGC adjustable capacity, preset scheduling strategy, and superior scheduling total output value of the hydropower and photovoltaic complementary combined power generation system; the AGC adjustable capacity includes the AGC adjustable capacity of the hydropower station and the AGC adjustable capacity of the photovoltaic power station; the preset scheduling strategy includes the photovoltaic priority scheduling strategy and the hydropower priority scheduling strategy; Based on the AGC adjustable capacity and the preset scheduling strategy, respectively calculating the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic power station; Calculating the total adjustable capacity range of the hydropower station and the photovoltaic power station based on the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic power station; Determining a first output value allocated to the hydropower station and a second output value allocated to the photovoltaic power station based on the preset scheduling strategy, the upper-level scheduling total output value, and the adjustable total capacity interval; If the preset scheduling strategy is the photovoltaic priority scheduling strategy, the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic power station are calculated respectively, including: The upper limit and lower limit of the adjustable capacity range of the photovoltaic power station are calculated respectively by the following calculation formula: ， ， Where, and are the upper limit and lower limit of the adjustable capacity range of the photovoltaic power station, and are the upper limit and lower limit of the AGC adjustable capacity of the whole plant of the j-th photovoltaic power station, respectively, and N is the total number of the photovoltaic power stations; The upper limit and lower limit of the adjustable capacity range of the hydropower station are calculated respectively by the following calculation formula: ， ， Where, is the upper limit of the adjustable capacity range of the hydropower station after correction according to the photovoltaic priority scheduling strategy, is the lower limit of the adjustable capacity range of the hydropower station, is the installed capacity of the hydropower station, is the upper limit of the AGC adjustable capacity of the hydropower station, Forcing all ecological units of the hydropower station to generate power; If the upper limit of the adjustable capacity interval of the hydropower station is within at least one target interval of the multiple groups of plant-wide joint vibration zones of the hydropower station, the upper limit of the adjustable capacity interval of the hydropower station is determined as the lowest lower limit of the at least one target interval; If the preset scheduling strategy is the hydropower priority scheduling strategy, the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic power station are calculated respectively, including: The upper limit and lower limit of the adjustable capacity range of the hydropower station are calculated respectively by the following calculation formula: ， ， Where, and are the upper limit and lower limit of the adjustable capacity range of the hydropower station, is the upper limit of the AGC adjustable capacity of the hydropower station, Forcing all ecological units of the hydropower station to generate power; The upper limit and lower limit of the adjustable capacity range of the photovoltaic power station are calculated respectively by the following calculation formula: ， ， Where, and are the upper limit and lower limit of the adjustable capacity range of the photovoltaic power station, and are the upper limit and lower limit of the AGC adjustable capacity of the whole plant of the j-th photovoltaic power station, respectively, and N is the total number of the photovoltaic power stations; is the installed capacity of the hydropower station.

2. The method according to claim 1, wherein: The AGC adjustable capacity of the hydropower station includes: the upper limit value of the AGC adjustable capacity of the entire hydropower station, the forced output of the ecological units of the entire hydropower station, and the upper and lower limits of multiple groups of joint vibration zones of the entire hydropower station; The AGC adjustable capacity of the photovoltaic power station includes: an upper limit value of the plant-wide AGC adjustable capacity of the photovoltaic power station and a lower limit value of the plant-wide AGC adjustable capacity.

3. The method according to claim 1, wherein: Calculating the total adjustable capacity range of the hydropower station and the photovoltaic station based on the adjustable capacity range of the hydropower station and the adjustable capacity range of the photovoltaic station includes: The upper limit and lower limit of the adjustable total capacity range of the water-photovoltaic complementary combined power generation system are calculated respectively by the following calculation formula: ， ， Where, and are respectively the upper limit and lower limit of the adjustable total capacity range of the hydro-photovoltaic complementary combined power generation system.

4. The method according to claim 1, wherein: If the preset scheduling strategy is the photovoltaic priority scheduling strategy, determining a first output value allocated to the hydropower station and a second output value allocated to the photovoltaic power station based on the preset scheduling strategy, the superior scheduling total output value, and the adjustable total capacity interval includes: If the difference between the upper-level dispatching total output value and the lower limit value of the adjustable capacity interval of the hydropower station is less than the upper limit value of the adjustable capacity interval of the photovoltaic power station, the lower limit value of the adjustable capacity interval of the hydropower station is determined as the first output value, and the difference between the upper-level dispatching total output value and the lower limit value of the adjustable capacity interval of the hydropower station is determined as the second output value; If the difference between the upper-level dispatching total output value and the lower limit value of the adjustable capacity interval of the hydropower station is greater than or equal to the upper limit value of the adjustable capacity interval of the photovoltaic power station, the upper limit value of the adjustable capacity interval of the photovoltaic power station is determined as the second output value, and the difference between the upper-level dispatching total output value and the upper limit value of the adjustable capacity interval of the photovoltaic power station is determined as the first output value; The output power of each photovoltaic power station is allocated according to the ratio of the upper limit of the AGC adjustable capacity of the corresponding photovoltaic power station.

5. The method according to claim 1, wherein: If the preset scheduling strategy is the hydropower priority scheduling strategy, determining a first output value allocated to the hydropower station and a second output value allocated to the photovoltaic power station based on the preset scheduling strategy, the superior scheduling total output value, and the adjustable total capacity interval includes: If the difference between the upper-level dispatching total output value and the lower limit value of the adjustable capacity interval of the photovoltaic power station is less than the upper limit value of the adjustable capacity interval of the hydropower station, the lower limit value of the adjustable capacity interval of the photovoltaic power station is determined as the second output value, and the difference between the upper-level dispatching total output value and the lower limit value of the adjustable capacity interval of the photovoltaic power station is determined as the first output value; If the difference between the total output value of the superior scheduling and the lower limit value of the adjustable capacity range of the photovoltaic power station is greater than or equal to the upper limit value of the adjustable capacity range of the hydropower station, the upper limit value of the adjustable capacity range of the hydropower station is determined as the first output value, and the difference between the total output value of the superior scheduling and the first output value is determined as the second output value.

6. The method according to claim 5, characterized in that: If the difference between the total output value of the upper-level dispatching and the lower limit of the adjustable capacity range of the photovoltaic power station is less than the upper limit of the adjustable capacity range of the hydropower station, the output value of each photovoltaic power station is the lower limit of the AGC adjustable capacity of the corresponding photovoltaic power station; If the difference between the total output value of the upper-level dispatching and the lower limit value of the adjustable capacity range of the photovoltaic power station is greater than or equal to the upper limit value of the adjustable capacity range of the hydropower station, the output value of each photovoltaic power station is allocated according to the proportion of the upper limit value of the adjustable capacity of the AGC of the corresponding photovoltaic power station.

7. A real-time scheduling system for safe delivery of water-light complementary channels, characterized by: Applicable to a water-photovoltaic complementary combined power generation system; comprising: an acquisition module, a first calculation module, a second calculation module and a determination module; wherein, The acquisition module is used to obtain the AGC adjustable capacity, preset scheduling strategy and upper-level scheduling total output value of the hydro-photovoltaic complementary combined power generation system; the AGC adjustable capacity includes the AGC adjustable capacity of the hydropower station and the AGC adjustable capacity of the photovoltaic power station; the preset scheduling strategy includes the photovoltaic priority scheduling strategy and the hydropower priority scheduling strategy; The first calculation module is configured to calculate the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic power station based on the AGC adjustable capacity and the preset scheduling strategy; The second calculation module is configured to calculate the adjustable total capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic station based on the adjustable capacity interval of the hydropower station and the adjustable capacity interval of the photovoltaic station; The determining module is configured to determine a first output value allocated to the hydropower station and a second output value allocated to the photovoltaic power station based on the preset scheduling strategy, the upper-level scheduling total output value, and the adjustable total capacity interval; If the preset scheduling strategy is the photovoltaic priority scheduling strategy, the first calculation module is further configured to: The upper limit and lower limit of the adjustable capacity range of the photovoltaic power station are calculated respectively by the following calculation formula: ， ， Where, and are the upper limit and lower limit of the adjustable capacity range of the photovoltaic power station, and are the upper limit and lower limit of the AGC adjustable capacity of the whole plant of the j-th photovoltaic power station, respectively, and N is the total number of the photovoltaic power stations; The upper limit and lower limit of the adjustable capacity range of the hydropower station are calculated respectively by the following calculation formula: ， ， Where, is the upper limit of the adjustable capacity range of the hydropower station after correction according to the photovoltaic priority scheduling strategy, is the lower limit of the adjustable capacity range of the hydropower station, is the installed capacity of the hydropower station, is the upper limit of the AGC adjustable capacity of the hydropower station, Forcing all ecological units of the hydropower station to generate power; If the upper limit of the adjustable capacity interval of the hydropower station is within at least one target interval of the multiple groups of plant-wide joint vibration zones of the hydropower station, the upper limit of the adjustable capacity interval of the hydropower station is determined as the lowest lower limit of the at least one target interval; If the preset scheduling strategy is the hydropower priority scheduling strategy, the first calculation module is further configured to: The upper limit and lower limit of the adjustable capacity range of the hydropower station are calculated respectively by the following calculation formula: ， ， Where, and are the upper limit and lower limit of the adjustable capacity range of the hydropower station, is the upper limit of the AGC adjustable capacity of the hydropower station, Forcing all ecological units of the hydropower station to generate power; The upper limit and lower limit of the adjustable capacity range of the photovoltaic power station are calculated respectively by the following calculation formula: ， ， Where, and are the upper limit and lower limit of the adjustable capacity range of the photovoltaic power station, and are the upper limit and lower limit of the AGC adjustable capacity of the whole plant of the j-th photovoltaic power station, respectively, and N is the total number of the photovoltaic power stations; is the installed capacity of the hydropower station.

8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 6 when executing the computer program.

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