Methods, systems, and media for coordinated control of operating power of pumped air storage and irrigation equipment

Abstract

This invention discloses a method, system, and medium for coordinated control of the operating power of pumped-pumped air storage and irrigation equipment. The method involves acquiring the net load curve of the irrigation area; reading the net load power at each time period; if it is not less than zero, the pumped-pumped air storage device operates in energy release mode; if it is less than zero, the device with the lowest adjustment cost among the irrigation equipment and the energy storage device is selected to operate, forming scheme A1 that satisfies the supply and demand balance of the irrigation load area; collecting the daily water consumption of the irrigation load and the operating power of the irrigation equipment at each time period in scheme A1, and calculating the daily irrigation water volume deviation; adjusting the irrigation rate to make the daily irrigation water volume deviation zero, forming scheme A2 that satisfies the daily water consumption constraint of the irrigation load; calculating the total amount of water replenishment required by the energy storage device, and adjusting the power generation of the energy storage device at each time period to replenish the water, forming equipment operation scheme A3 that meets the water replenishment needs of the energy storage device. This invention ensures safe and economical water and electricity consumption in the irrigation load area by controlling the operating power of the energy storage device and the irrigation equipment.

Description

Technical Field

[0001] This invention relates to the field of distributed resource control technology for irrigation load areas, and in particular to a method, system, and medium for coordinated control of pumped air storage and irrigation equipment operating power. Background Technology

[0002] Small hydropower stations are an important component of rural power distribution networks, undertaking not only peak-load power supply tasks for their respective substations but also comprehensive tasks related to ecology, irrigation, and water supply. Utilizing their water resources, small hydropower stations can allocate water efficiently and promptly during critical crop growth periods, providing reliable irrigation water to surrounding farmland, meeting crop water needs, ensuring smooth agricultural production, and promoting stable grain yields. However, run-of-river small hydropower stations are constrained by the natural flow of rivers and lack the ability to regulate water levels. They cannot proactively mitigate power system load fluctuations as a controllable resource, nor can they provide a stable water source to meet the irrigation water demands of their substations. Summary of the Invention

[0003] This invention provides a method, system, and medium for coordinated control of the operating power of pumped compressed air energy storage and irrigation equipment, which is used to solve the problem that run-of-river small hydropower stations cannot actively smooth power system load fluctuations as an adjustable resource, and at the same time cannot provide a stable water source to meet the water demand of the irrigation load in the distribution area.

[0004] In a first aspect, a method for coordinated control of the operating power of pumped air storage and irrigation equipment is provided, comprising the following steps:

[0005] S1: Obtain the net load curve for the transformer area;

[0006] S2: Sequentially read the net load power Y of each time period in the net load curve of the transformer area. netload,t ;

[0007] If Y netload,t If ≥0, the pumped-air-cooled energy storage device will operate in energy release mode, increasing the power output by Y. netload,t ;

[0008] If Y netload,t If <0, then calculate the increased operating power of the irrigation equipment |Y netload,t |Required increase in irrigation rate and the corresponding adjustment costs Calculate the storage power of a pumped-air compressed air energy storage device | Y netload,t |Required adjustment costs like The pumped-air-cooled energy storage device will then operate in energy storage mode, storing power |Y netload,t |;If Then the operating power of the irrigation equipment during that period will be increased |Y netload,t|;

[0009] After processing all time periods, a scheme A1 is formed that satisfies the supply and demand balance of the irrigation load area;

[0010] S3: Collect the daily water consumption of irrigation load and the operating power of irrigation equipment at each time period in Scheme A1, and calculate the difference between the daily water consumption of irrigation load and the determined irrigation water volume of irrigation equipment as the daily irrigation water volume deviation ΔQ. day Collect the maximum charging and discharging power of the pumped-pump air-cooled energy storage device and its charging and discharging power at various time periods in Scheme A1; calculate the power that the pumped-pump air-cooled energy storage device can provide to the irrigation equipment at various time periods, and the corresponding adjustable irrigation volume of the irrigation equipment.

[0011] S4: Adjustable irrigation volume of irrigation equipment at different times. Arranged in descending order, daily irrigation water volume deviation ΔQ day Subtract the adjustable irrigation amount for each time period in sequence. Until the daily irrigation water volume deviation ΔQ day =0; Adjust the charging and discharging power of the pumped air storage device and the operating power of the irrigation equipment during the corresponding time period to form scheme A2 that meets the daily water consumption constraint of the irrigation load;

[0012] S5: Based on the water level in the storage tank of the pumped-air-cooled energy storage device and the daily water consumption of the irrigation load, calculate the total amount of water replenishment Q required for the pumped-air-cooled energy storage device. chou Read the power generation of the pumped-storage (PSG) energy storage device during each power generation period in scheme A2, and calculate the additional power that the PSG energy storage device can generate for water replenishment during each power generation period and the corresponding amount of water that can be replenished. Water replenishment capacity at different times Arranged in descending order, the total water replenishment Q chou Subtract the amount of water that can be replenished in each time period in sequence. Until the total water replenishment Q chou =0; Adjust the power generation of the pumped-air-cooled energy storage device during the corresponding time period to form an equipment operation plan A3 that meets the water replenishment needs of the pumped-air-cooled energy storage device.

[0013] Furthermore, the net load curve of the distribution area is obtained as follows: the daily planned output curve of the run-of-river small hydropower station and the daily load curve of the residents in the distribution area are collected, and the difference between the load of the residents in the distribution area and the planned output of the run-of-river small hydropower station in each time period is calculated to form the net load curve of the distribution area.

[0014] Furthermore, the formula for calculating the irrigation rate adjusted by the irrigation equipment in step S2 is as follows:

[0015]

[0016] In the formula, η irrigtρ is the operating efficiency of the irrigation equipment; g is the water flow density; H is the acceleration due to gravity. irrigt To determine the head of the irrigation equipment.

[0017] Furthermore, the formula for calculating the adjustment cost of irrigation equipment in step S2 is as follows:

[0018]

[0019] In the formula, Costs associated with shutting down irrigation equipment; λ irrigt The adjustment cost per unit power change of irrigation equipment; Δτ t The scheduling period is [number].

[0020] Furthermore, the formula for calculating the adjustment cost of the pumped-air-cooled energy storage capacity in step S2 is as follows:

[0021]

[0022] In the formula, The start-up cost of a pumped-air compressed air energy storage device; λ chouya The adjustment cost per unit power change for pumped-storage energy storage devices; Δτ t The scheduling period is [number].

[0023] Furthermore, in step S3, the daily irrigation water volume deviation ΔQ day The calculation formula is as follows:

[0024]

[0025] In the formula, Q day This refers to the daily water consumption for irrigation in the affected area. Δτ represents the irrigation rate for each time period's irrigation load. t The scheduling period;

[0026] If the daily irrigation water volume deviation is ΔQ day If the value is less than 0, the irrigation equipment needs to reduce the irrigation rate at different times, and the storage capacity of the pumped air-cooled energy storage device should be adjusted accordingly; if the daily irrigation water volume deviation is ΔQ... day If the value is greater than 0, the irrigation equipment needs to increase the irrigation rate at each time period, and the pumped air storage device releases power; the pumped air storage device can provide the irrigation equipment with the power ΔY that can be adjusted at each time period. t adjust And the irrigation rate adjusted accordingly by the irrigation equipment. and irrigation volume The calculation formula is as follows:

[0027]

[0028] like but like but

[0029]

[0030] In the formula, This is the maximum charging power of the pumped-air-cooled energy storage device. Y represents the maximum power generation capacity of the pumped-storage energy storage device. t state H represents the operating power of the pumped-hydro-compressed-gas energy storage device during the t-th time period; irrigt For irrigation equipment head; η irrigt To improve the operating efficiency of irrigation equipment; ρ is the maximum irrigation rate of the irrigation equipment; g is the water flow density; and g is the acceleration due to gravity.

[0031] Furthermore, in step S5, the total amount of water Q required for the pumped-air compressed air energy storage device is... chou The calculation formula is as follows:

[0032]

[0033] In the formula, Let Δτ be the irrigation rate of the irrigation equipment in the t-th time period; t The scheduling period is h. min The minimum warning water level for the storage tank; h now S0 represents the current water level in the storage tank; S0 represents the bottom area of ​​the storage tank.

[0034] The pumped-storage system can generate additional water for replenishment during each power generation period, corresponding to the amount of water that can be replenished. The calculation formula is as follows:

[0035]

[0036] In the formula, Y represents the maximum power generation capacity of the pumped-storage energy storage device. t gener H represents the power generation of the pumped-hydro gas storage device in scheme A2 during the t-th time period; chouya The head of the pumped-air-cooled energy storage device for generating electricity; η chouya The operating efficiency of a pumped-storage gas storage device; Δτ chou ρ is the pumping time of the pumped air storage device; g is the water flow density; and g is the acceleration due to gravity.

[0037] Secondly, a power coordination control system for pumped air storage and irrigation equipment is provided, including a memory, a processor, an operating status monitoring module, and an actuator.

[0038] A memory on which computer programs are stored;

[0039] A processor is used to load and process the computer program to implement the previously described method for coordinated control of the operating power of pumped air storage and irrigation equipment.

[0040] The operation status monitoring module can communicate with the sensors of the pumped air storage device and irrigation equipment to monitor the operation status of the pumped air storage device and irrigation equipment in real time, and transmit the collected data to the processor.

[0041] The actuator controls the pumped air storage device and irrigation equipment based on schemes A2 and A3.

[0042] Thirdly, an energy storage and irrigation coordination system is provided, including a pumped air storage device, irrigation equipment, and a power coordination control system for the pumped air storage and irrigation equipment as described above.

[0043] Fourthly, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the previously described method for coordinated control of the operating power of pumped air storage and irrigation equipment.

[0044] This invention proposes a method, system, and medium for coordinated control of the operating power of pumped-pumped air storage and irrigation equipment, which has the following beneficial effects: The pumped-pumped air storage device, in coordination with the irrigation load, can increase load power during off-peak hours, store surplus power from the power grid, and release irrigation water; during peak hours, it can reduce load power, increase the power required by the power grid, and supplement irrigation water. The coordinated control of the pumped-pumped air storage device and the irrigation load can effectively smooth load fluctuations, reduce the peak-valley difference in the power system, and ensure safe and economical water and electricity use in irrigation load areas. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram illustrating the principle of a method for coordinated control of the operating power of a pumped air storage and irrigation equipment, as provided in an embodiment of the present invention.

[0047] Figure 2 This is the source load output curve of the irrigation load distribution area provided in the embodiment of the present invention;

[0048] Figure 3This is the net load curve of the irrigation load area provided in the embodiment of the present invention;

[0049] Figure 4 This is the source-load-storage-output curve of the irrigation load distribution area provided in the embodiments of the present invention;

[0050] Figure 5 This is the adjusted irrigation load area net load curve provided in the embodiment of the present invention. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0052] like Figure 1 As shown, this embodiment of the invention provides a method for coordinated control of the operating power of pumped air storage and irrigation equipment, including the following steps:

[0053] S1: Obtain the net load curve of the transformer area.

[0054] Specifically, the net load curve of the distribution area is obtained as follows: The daily planned output curve of the run-of-river small hydropower station and the daily load curve of the residents in the distribution area are collected. The difference between the residents' load and the planned output of the run-of-river small hydropower station at each time period is calculated to form the net load curve of the distribution area. The calculation formula is as follows:

[0055] Y netload =P resident -P hydro

[0056] In the formula, Y netload P resident and P hydro These represent the net load curve of the transformer area, the daily load curve of the residents in the transformer area, and the daily planned output curve of the run-of-river small hydropower station, respectively.

[0057] S2: Sequentially read the net load power Y of each time period in the net load curve of the transformer area. netload,t ;

[0058] If Y netload,t If ≥0, then the operating status u of the pumped-air compressed air energy storage device will be... chouya Set to 1, and increase power to Y. netload,t Among them, the operating status of the pumped-air compressed air energy storage device is u chouya= {-1,0,1}, when its value is -1, it indicates that the pumped-hydro gas storage device is operating in energy storage mode, when its value is 1, it indicates that the pumped-hydro gas storage device is operating in energy release mode, and when its value is 0, it indicates that the pumped-hydro gas storage device is in a shutdown state.

[0059] If Y netload,t If <0, then calculate the increased operating power of the irrigation equipment |Y netload,t |Required increase in irrigation rate and the corresponding adjustment costs Calculate the storage power of a pumped-air compressed air energy storage device | Y netload,t |Required adjustment costs like The pumped-air-cooled energy storage device will then operate in energy storage mode, storing power |Y netload,t |;If Then the operating power of the irrigation equipment during that period will be increased |Y netload,t |;

[0060] After processing all time periods, a scheme A1 is formed that satisfies the supply and demand balance of the irrigation load area. Scheme A1 includes the charging and discharging power of the pumped air storage device and the operating power of the irrigation equipment in each time period.

[0061] Specifically, the formula for calculating the irrigation rate adjusted by the irrigation equipment is as follows:

[0062]

[0063] In the formula, η irrigt For the operating efficiency of irrigation equipment; |Y netload,t | represents the increased operating power required for the irrigation equipment; ρ is the water flow density; g is the acceleration due to gravity; H irrigt To determine the head of the irrigation equipment.

[0064] Irrigation equipment adjustment costs The calculation formula is:

[0065]

[0066] In the formula, Costs associated with shutting down irrigation equipment; λ irrigt The adjustment cost per unit power change of irrigation equipment; Δτ t The scheduling period is the duration of a time interval. and λ irrigt Obtained from the power trading center.

[0067] Adjustment costs required for pumped hydro compressed air energy storage power storage The calculation formula is:

[0068]

[0069] In the formula, The start-up cost of a pumped-air compressed air energy storage device; λ chouya The adjustment cost per unit power change for pumped-storage energy storage devices; Δτ t The scheduling period; and λ chouya Obtained from the power trading center.

[0070] S3: Collect the daily water consumption of irrigation load and the operating power of irrigation equipment at each time period in Scheme A1, and calculate the difference between the daily water consumption of irrigation load and the determined irrigation water volume of irrigation equipment as the daily irrigation water volume deviation ΔQ. day Collect the maximum charge and discharge power of the pumped-pump air-cooled energy storage device and its charge and discharge power at various time periods in Scheme A1; calculate the power that the pumped-pump air-cooled energy storage device can provide to the irrigation equipment at various time periods, and the corresponding adjustable irrigation volume ΔQ of the irrigation equipment. t day .

[0071] Specifically, the daily irrigation water volume deviation ΔQ day The calculation formula is as follows:

[0072]

[0073] In the formula, Q day This refers to the daily water consumption for irrigation in the affected area. Δτ represents the irrigation rate for each time period's irrigation load. t The scheduling period;

[0074] If the daily irrigation water volume deviation is ΔQ day If the value is less than 0, the irrigation equipment needs to reduce the irrigation rate at different times, and the storage capacity of the pumped air-cooled energy storage device should be adjusted accordingly; if the daily irrigation water volume deviation is ΔQ... day If the value is greater than 0, the irrigation equipment needs to increase the irrigation rate at each time period, and the pumped air storage device releases power; the pumped air storage device can provide the irrigation equipment with the power ΔY that can be adjusted at each time period. t adjust And the irrigation rate adjusted accordingly by the irrigation equipment. and irrigation volume The calculation formula is as follows:

[0075]

[0076] like but like but

[0077]

[0078] In the formula, This is the maximum charging power of the pumped-air-cooled energy storage device. Y represents the maximum power generation capacity of the pumped-storage energy storage device. t state H represents the operating power of the pumped-hydro-compressed-gas energy storage device during the t-th time period; irrigt For irrigation equipment head; η irrigt To improve the operating efficiency of irrigation equipment; ρ is the maximum irrigation rate of the irrigation equipment; g is the water flow density; and g is the acceleration due to gravity.

[0079] S4: Adjustable irrigation volume of irrigation equipment at different times. Arranged in descending order, daily irrigation water volume deviation ΔQ day Subtract the adjustable irrigation amount for each time period in sequence. Until the daily irrigation water volume deviation ΔQ day =0, satisfying the daily water consumption constraint of the irrigation load; adjust the charging and discharging power of the pumped-air-cooled energy storage device and the operating power of the irrigation equipment during the corresponding time periods to form scheme A2 that satisfies the daily water consumption constraint of the irrigation load. Scheme A2 includes the charging and discharging power of the pumped-air-cooled energy storage device and the operating power of the irrigation equipment during each time period. By sequentially subtracting the largest adjustable irrigation volume for multiple time periods... By reducing the number of time periods that need adjustment until the irrigation deviation reaches zero, the complexity of adjusting the plan can be reduced.

[0080] S5: Based on the water level in the storage tank of the pumped-air-cooled energy storage device and the daily water consumption of the irrigation load, calculate the total amount of water replenishment Q required for the pumped-air-cooled energy storage device. chou Read the power generation of the pumped-storage (PSG) energy storage device during each power generation period in scheme A2, and calculate the additional power that the PSG energy storage device can generate for water replenishment during each power generation period and the corresponding amount of water that can be replenished. Water replenishment capacity at different times Arranged in descending order, the total water replenishment Q chou Subtract the amount of water that can be replenished in each time period in sequence. Until the total water replenishment Q chou =0, which satisfies the water replenishment constraint of the pumped air storage; adjust the power generation of the pumped air storage device during the corresponding time period to form an equipment operation scheme A3 that meets the water replenishment requirements of the pumped air storage device. Scheme A3 includes the charging and discharging power of the pumped air storage device during each time period.

[0081] Specifically, the total amount of makeup water Q required for the pumped-air compressed air energy storage device. chou The calculation formula is as follows:

[0082]

[0083] In the formula, Let Δτ be the irrigation rate of the irrigation equipment in the t-th time period; t The scheduling period is h. min The minimum warning water level for the storage tank; h now S0 represents the current water level in the storage tank; S0 represents the bottom area of ​​the storage tank.

[0084] The pumped-storage system can generate additional water for replenishment during each power generation period, corresponding to the amount of water that can be replenished. The calculation formula is as follows:

[0085]

[0086] In the formula, Y represents the maximum power generation capacity of the pumped-storage energy storage device. t gener H represents the power generation of the pumped-hydro gas storage device in scheme A2 during the t-th time period; chouya The head of the pumped-air-cooled energy storage device for generating electricity; η chouya The operating efficiency of a pumped-storage gas storage device; Δτ chou ρ is the pumping time of the pumped air storage device; g is the water flow density; and g is the acceleration due to gravity.

[0087] The above embodiments provide a method for coordinated control of pumped-pumped air storage and irrigation equipment operating power, which has the following beneficial effects: The pumped-pumped air storage device, in coordination with the irrigation load, can increase load power during off-peak hours, store surplus power from the power grid, and release irrigation water; during peak hours, it can reduce load power, increase the power required by the power grid, and supplement irrigation water. Coordinated control of the pumped-pumped air storage device and irrigation load can effectively smooth load fluctuations, reduce the peak-valley difference in the power system, and ensure safe and economical water and electricity use in irrigation load areas.

[0088] This invention also provides a power coordination control system for pumped air storage and irrigation equipment, including a memory, a processor, an operating status monitoring module, and an actuator.

[0089] A memory on which computer programs are stored;

[0090] A processor is used to load and process the computer program to implement the previously described method for coordinated control of the operating power of pumped air storage and irrigation equipment.

[0091] The operation status monitoring module can communicate with the sensors of the pumped air storage device and irrigation equipment to monitor the operation status of the pumped air storage device and irrigation equipment in real time, and transmit the collected data to the processor.

[0092] The actuator controls the pumped air storage device and irrigation equipment based on schemes A2 and A3.

[0093] This invention also provides an energy storage and irrigation coordination system, including a pumped air storage device, irrigation equipment, and a pumped air storage and irrigation equipment operation power coordination control system as described above.

[0094] This invention also provides a computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the aforementioned method for coordinated control of the operating power of pumped air storage and irrigation equipment.

[0095] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0096] The following will provide further explanation with specific application examples.

[0097] A small run-of-river hydropower station with an installed capacity of 5.48MW is set as the case study, and its detailed parameters are shown in Table 1. The pumping efficiency η of the pump-turbine in the pumped compressed air energy storage device is... n =0.78, energy conversion efficiency η when the pumped-storage gas storage device releases energy. st =0.7.

[0098] Table 1 Relevant parameters of small hydropower stations

[0099]

[0100] The example selects two schemes for comparative calculation: Scheme 1: the pumped air storage device and irrigation load do not participate in the regulation of the power system; Scheme 2: the pumped air storage device and irrigation load participate in the regulation of the power system.

[0101] Scheme 1 lacks adjustable resources, and the power generation of run-of-river small hydropower stations is greatly affected by upstream water flow. Their power generation curves exhibit similar characteristics to upstream hydropower stations with reservoir capacity, with higher power generation during the midday and evening peak hours and lower power generation in the early morning. Meanwhile, the irrigation area experiences higher loads during the early morning and midday peak hours, with a trough during the evening peak. Figure 2 The source-load output curve of the irrigation load area. Figure 3 The net load curve for the irrigation load area is given by... Figure 3 It can be seen that during the early morning period (01:00-7:00), the cumulative net load power was 12356.25kWh, and the electricity purchase cost was 4675.79 yuan; during the other periods (8:00-00:00), the cumulative net load power was -29083.08kWh, and the electricity generated by the small hydropower station could not be consumed locally, with a curtailment cost of 10178 yuan, for a total cost of 14853.79 yuan.

[0102] In Scheme 2, the irrigation rate and time of the irrigation equipment are adjusted, which can reduce the load power during peak hours. Pumped air storage can play its own energy storage role, ensuring peak supply during peak hours and storing the power generated by run-of-river small hydropower stations during off-peak hours. Figure 4 The source-load-storage-output curve of the irrigation load area. Figure 5 To adjust the net load curve of the irrigation load area, by Figure 5 It can be seen that during the early morning (2:00-5:00), the load in the distribution area is relatively large. Even if the pumped-pumped gas storage device operates at its maximum power generation, it still cannot meet the load demand. The cumulative net load power is 244.36 kWh, and the electricity purchase cost is 92.44 yuan. During the evening peak period (18:00-23:00), the power generation of the run-of-river small hydropower station is relatively large. Even if the pumped-pumped gas storage device operates at its maximum charging power, it still cannot fully store the power generated by the run-of-river small hydropower station. The cumulative net load power is -4034.33 kWh, and the cost of curtailed electricity is 1412.02 yuan. The total cost is 1504.45 yuan, which is 13349.33 yuan lower than the first option.

[0103] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0104] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0105] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1The function specified in one or more boxes.

[0106] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0107] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for coordinated control of operating power of pumped air storage and irrigation equipment, characterized in that, Includes the following steps: S1: Obtain the net load curve for the transformer area; S2: Sequentially read the net load power Y of each time period from the net load curve of the transformer area. netload,t ; If Y netload,t If ≥0, the pumped-air-cooled energy storage device will operate in energy release mode, increasing the power output by Y. netload,t ; If Y netload,t If <0, then calculate the increased operating power of the irrigation equipment |Y netload,t |Required increase in irrigation rate and the corresponding adjustment costs Calculate the storage power of a pumped-air compressed air energy storage device | Y netload,t |Required adjustment costs like The pumped-air-cooled energy storage device will then operate in energy storage mode, storing power |Y netload,t |;If Then the operating power of the irrigation equipment during that period will be increased |Y netload,t |; After processing all time periods, a scheme A1 is formed that satisfies the supply and demand balance of the irrigation load area; S3: Collect the daily water consumption of irrigation load and the operating power of irrigation equipment at each time period in Scheme A1, and calculate the difference between the daily water consumption of irrigation load and the determined irrigation water volume of irrigation equipment as the daily irrigation water volume deviation ΔQ. day Collect the maximum charging and discharging power of the pumped-pump air-cooled energy storage device and its charging and discharging power at various time periods in Scheme A1; calculate the power that the pumped-pump air-cooled energy storage device can provide to the irrigation equipment at various time periods, and the corresponding adjustable irrigation volume of the irrigation equipment. S4: Adjustable irrigation volume of irrigation equipment at different times. Arranged in descending order, daily irrigation water volume deviation ΔQ day Subtract the adjustable irrigation amount for each time period in sequence. Until the daily irrigation water volume deviation ΔQ day =0; Adjust the charging and discharging power of the pumped air storage device and the operating power of the irrigation equipment during the corresponding time period to form scheme A2 that meets the daily water consumption constraint of the irrigation load; S5: Based on the water level in the storage tank of the pumped-air-cooled energy storage device and the daily water consumption of the irrigation load, calculate the total amount of water replenishment Q required for the pumped-air-cooled energy storage device. chou Read the power generation of the pumped-storage (PSG) energy storage device during each power generation period in scheme A2, and calculate the additional power that the PSG energy storage device can generate for water replenishment during each power generation period and the corresponding amount of water that can be replenished. Water replenishment capacity at different times Arranged in descending order, the total water replenishment Q chou Subtract the amount of water that can be replenished in each time period in sequence. Until the total water replenishment Q chou =0; Adjust the power generation of the pumped-air-cooled energy storage device during the corresponding time period to form an equipment operation plan A3 that meets the water replenishment needs of the pumped-air-cooled energy storage device.

2. The method for coordinated control of operating power of pumped air storage and irrigation equipment according to claim 1, characterized in that, The net load curve of the transformer substation is obtained as follows: the daily planned output curve of the run-of-river small hydropower station and the daily load curve of the residents in the transformer substation are collected, and the difference between the residents' load and the planned output of the run-of-river small hydropower station in each time period is calculated to form the net load curve of the transformer substation.

3. The method for coordinated control of operating power of pumped air storage and irrigation equipment according to claim 1, characterized in that, The formula for calculating the irrigation rate adjusted by the irrigation equipment in step S2 is as follows: In the formula, η irrigt ρ is the operating efficiency of the irrigation equipment; g is the water flow density; H is the acceleration due to gravity. irrigt To determine the head of the irrigation equipment.

4. The method for coordinated control of operating power of pumped air storage and irrigation equipment according to claim 1, characterized in that, The formula for calculating the adjustment cost of irrigation equipment in step S2 is as follows: In the formula, Costs associated with shutting down irrigation equipment; λ irrigt The adjustment cost per unit power change of irrigation equipment; Δτ t The scheduling period is [number].

5. The method for coordinated control of operating power of pumped air storage and irrigation equipment according to claim 1, characterized in that, The formula for calculating the adjustment cost of the pumped-air-compressed energy storage capacity in step S2 is as follows: In the formula, The start-up cost of a pumped-air compressed air energy storage device; λ chouya The adjustment cost per unit power change for pumped-storage energy storage devices; Δτ t The scheduling period is [number].

6. The method for coordinated control of operating power of pumped air storage and irrigation equipment according to claim 1, characterized in that, In step S3, the daily irrigation water volume deviation ΔQ day The calculation formula is as follows: In the formula, Q day This refers to the daily water consumption for irrigation in the affected area. Δτ represents the irrigation rate for each time period's irrigation load. t The scheduling period; If the daily irrigation water volume deviation is ΔQ day If the value is less than 0, the irrigation equipment needs to reduce the irrigation rate at different times, and the storage capacity of the pumped air-cooled energy storage device should be adjusted accordingly; if the daily irrigation water volume deviation is ΔQ... day If the value is greater than 0, the irrigation equipment needs to increase the irrigation rate at each time period, and the pumped air storage device releases power; the pumped air storage device can provide the irrigation equipment with the power ΔY that can be adjusted at each time period. t adjust And the irrigation rate adjusted accordingly by the irrigation equipment. and irrigation volume The calculation formula is as follows: like but like but In the formula, This is the maximum charging power of the pumped-air-cooled energy storage device. This is the maximum power generation capacity of the pumped-air-cooled energy storage device. H represents the operating power of the pumped-hydro-compressed-gas energy storage device during the t-th time period; irrigt For irrigation equipment head; η irrigt To improve the operating efficiency of irrigation equipment; ρ is the maximum irrigation rate of the irrigation equipment; g is the water flow density; and g is the acceleration due to gravity.

7. The method for coordinated control of operating power of pumped air storage and irrigation equipment according to claim 1, characterized in that, In step S5, the total amount of water Q required for the pumped-air compressed air energy storage device is... chou The calculation formula is as follows: In the formula, Let Δτ be the irrigation rate of the irrigation equipment in the t-th time period; t The scheduling period is h. min The minimum warning water level for the storage tank; h now S0 represents the current water level in the storage tank; S0 represents the bottom area of ​​the storage tank. The pumped-storage system can generate additional water for replenishment during each power generation period, corresponding to the amount of water that can be replenished. The calculation formula is as follows: In the formula, This is the maximum power generation capacity of the pumped-air-cooled energy storage device. H represents the power generation of the pumped-hydro gas storage device in scheme A2 during the t-th time period; chouya The head of the pumped-air-cooled energy storage device for generating electricity; η chouya The operating efficiency of a pumped-storage gas storage device; Δτ chou ρ is the pumping time of the pumped air storage device; g is the water flow density; and g is the acceleration due to gravity.

8. A power coordination control system for pumped air storage and irrigation equipment, characterized in that, Includes memory, processor, operating status monitoring module, and actuator; A memory on which computer programs are stored; A processor for loading and processing the computer program to implement the method for coordinated control of operating power of pumped air storage and irrigation equipment as described in any one of claims 1 to 7; The operation status monitoring module can communicate with the sensors of the pumped air storage device and irrigation equipment to monitor the operation status of the pumped air storage device and irrigation equipment in real time, and transmit the collected data to the processor. The actuator controls the pumped air storage device and irrigation equipment based on schemes A2 and A3.

9. A combined energy storage and irrigation system, characterized in that, It includes a pumped-air-cooled energy storage device, irrigation equipment, and a pumped-air-cooled energy storage and irrigation equipment operation power coordinated control system as described in claim 8.

10. 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 coordinated control of the operating power of pumped air storage and irrigation equipment as described in any one of claims 1 to 7.

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