A method and device for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm

Abstract

This invention provides a method and apparatus for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm, belonging to the field of smart energy technology. If a fault is detected in the transmission lines between the regional power grid and the external power grid, and the total power generation of the regional power grid is less than the total load power within a preset time period, the power consumption weight of each artificial fish farm is determined based on its oxygen consumption. Based on the power consumption weight of each artificial fish farm and the total power generation, the upper limit of the load power for each artificial fish farm is determined. For any artificial fish farm, the power adjustment amount is determined by subtracting the upper limit of the load power from the sum of the artificial fish farm's power generation and maximum energy storage discharge power. Based on the power adjustment amount, the power transmission between the artificial fish farms is adjusted. This invention, by balancing the load power of each artificial fish farm based on its oxygen consumption power weight, avoids power mismatch in some artificial fish farms and reduces the probability of irreversible losses to the artificial fish farms.

Description

Technical Field

[0001] This invention relates to the field of smart energy technology, and in particular to a method and device for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm. Background Technology

[0002] Photovoltaic power plants occupy a large area, while solar-aquaculture hybrid projects, which combine photovoltaic power generation with pond aquaculture, achieve a three-dimensional integrated utilization model of photovoltaic power generation on the upper level and aquaculture on the lower level, offering the advantage of dual-use of a single location. The all-electric zero-carbon artificial fish farm adopts a "fish-solar-wind-storage" operation mode, aiming for zero carbon emissions and avoiding the use of fossil fuels in artificial fish farms; for example, it avoids traditional diesel power generation methods.

[0003] Artificial fish farms are typically located in remote areas, such as suburbs far from towns, coastal areas, or offshore islands. This geographical location means that, on the one hand, the power grid of artificial fish farms is far from the main power grid; on the other hand, the harsh natural environment of artificial fish farms makes transmission lines susceptible to environmental influences and power outages, resulting in low power supply reliability. To improve power supply reliability, artificial fish farms usually need to have their own diesel generators, which contradicts the goal of all-electric, zero-carbon operation. Existing technologies can also improve power supply reliability through power sharing between multiple geographically proximate artificial fish farms. For example, an artificial fish farm with a larger power generation capacity can transmit electricity to an artificial fish farm with a smaller power generation capacity.

[0004] Existing technologies rely on power balance control, adjusting the discharge or storage power of energy storage batteries to balance power generation and consumption. However, the power consumption characteristics of artificial fish farms mean that irreversible losses increase dramatically once the power outage duration exceeds a critical point. Current control methods are unsuitable for artificial fish farm applications and cannot guarantee optimal overall power supply duration, leading to a higher probability of irreversible losses. For example, larger power consumption areas may crowd out smaller power consumption areas, reducing the power supply duration and reliability of the smaller power consumption areas, thus increasing the likelihood of irreversible losses. Summary of the Invention

[0005] This invention provides a method and device for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm, which solves the problems of low reliability of overall normal power supply time of existing control methods, unsuitability for artificial fish farm application scenarios, and high probability of irreversible losses.

[0006] In a first aspect, the present invention provides a method for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm, wherein multiple artificial fish farms constitute a regional power grid. The method includes:

[0007] If a fault is detected in the transmission lines connecting the regional power grid and the external power grid, and the total power generation of the regional power grid is less than the total load power within a preset time period, then the power consumption weight of each artificial fish farm is determined based on its oxygen consumption. The oxygen consumption is directly proportional to the power consumption weight.

[0008] Based on the electricity consumption weight of each artificial fish farm and the total power generation, the upper limit of the load power of each artificial fish farm is determined. The upper limit of the load power of each artificial fish farm is proportional to its electricity consumption weight.

[0009] For any artificial fish farm, the power adjustment amount of the artificial fish farm is determined by subtracting the upper limit of the load power from the sum of the power generation power and the maximum energy storage discharge power of the artificial fish farm.

[0010] Based on the aforementioned power adjustment amount, the power transmission between each artificial fishing ground is adjusted.

[0011] In one possible implementation, the step of detecting a transmission line fault between the regional power grid and the external power grid, and the total power generation of the regional power grid being less than the total load power within a preset time period, includes:

[0012] Monitor transmission line faults in the regional power grid and the external power grid.

[0013] If a fault is detected in the transmission line between the regional power grid and the external power grid, the historical wind and solar power generation and historical load power of each artificial fish farm within the regional power grid are obtained.

[0014] For any artificial fish farm, the average wind and solar power generation within a preset time period is predicted based on historical wind and solar power generation, and the average load power within a preset time period is predicted based on historical load power.

[0015] Based on the average wind and solar power generation and the average load power, the total power generation and total load power of the regional power grid within a preset time period are obtained, and it is determined whether the total power generation is less than the total load power.

[0016] In one possible implementation, determining the electricity consumption weight of each artificial fish farm based on its oxygen consumption includes:

[0017] For any artificial fish farm, the electricity consumption weight of the artificial fish farm is determined based on the following formula:

[0018]

[0019] Where W represents the electricity consumption weight of the artificial fish farm, η i M represents the oxygen consumption rate of the i-th fish species. i Δt represents the total weight of the i-th type of fish, Δt represents the preset duration, and k1 represents the preset efficiency coefficient of the aeration equipment in the artificial fish farm.

[0020] In one possible implementation, determining the electricity consumption weight of each artificial fish farm based on its oxygen consumption includes:

[0021] For any artificial fish farm, obtain the dissolved oxygen concentration of the artificial fish farm under real-time monitoring.

[0022] Based on the principle that the oxygen consumption of the artificial fish farm remains constant, the power of the oxygenation equipment is reduced until the dissolved oxygen concentration begins to decrease, and the power of the oxygenation equipment at the current moment is obtained.

[0023] The power consumption weight of the artificial fish farm is determined based on the current power of the oxygenation equipment.

[0024] In one possible implementation, determining the upper limit of the load power of each artificial fish farm based on the electricity consumption weight of each artificial fish farm and the total power generation includes:

[0025] For any artificial fish farm, the upper limit of its load power is determined based on the following formula:

[0026]

[0027] Among them, P j-limit Q represents the upper limit of the load power of the j-th artificial fish farm, where j is an integer greater than or equal to 1. total W represents the total power generation capacity. j Let k represent the electricity consumption weight of the j-th artificial fish farm, and k2 represent a preset coefficient greater than 1.

[0028] In one possible implementation, adjusting the power transmission between artificial fish farms based on the power adjustment amount includes:

[0029] For any artificial fish farm, if the power adjustment amount is greater than or equal to 0, the surplus power of the artificial fish farm will be output.

[0030] In one possible implementation, adjusting the power transmission between artificial fish farms based on the power adjustment amount further includes:

[0031] For any artificial fish farm, if the power adjustment amount is less than 0, the surplus power of other artificial fish farms will be input to that artificial fish farm.

[0032] In one possible implementation, after adjusting the power transmission between the artificial fish farms based on the power adjustment amount, the method further includes:

[0033] Obtain the dissolved oxygen concentration of each artificial fish farm under real-time monitoring.

[0034] If the SOC of the regional power grid is lower than the preset value, and the sum of the power adjustment and input power of any artificial fish farm is less than the minimum operating power of the oxygenation equipment, then the lower limit of dissolved oxygen concentration for each artificial fish farm is obtained.

[0035] Identify the artificial fishery with the highest ratio of dissolved oxygen concentration to the lower limit of dissolved oxygen concentration.

[0036] The upper limit of the load power of the artificial fish farm with the largest lower limit ratio is adjusted to 0, and the power adjustment amount of the artificial fish farm is re-determined, and the power transmission between each artificial fish farm is adjusted.

[0037] Secondly, the present invention provides a coordinated control device for the energy consumption of an all-electric, zero-carbon artificial fish farm, wherein multiple artificial fish farms constitute a regional power grid. The device includes:

[0038] The weighting determination module is used to determine the electricity consumption weight of each artificial fish farm based on its oxygen consumption if a fault is detected in the transmission lines between the regional power grid and the external power grid, and the total power generation of the regional power grid is less than the total load power within a preset time period. The oxygen consumption is directly proportional to the electricity consumption weight.

[0039] The power limit determination module is used to determine the upper limit of the load power for each artificial fish farm based on the electricity consumption weight of each artificial fish farm and the total power generation. The upper limit of the load power for each artificial fish farm is proportional to the electricity consumption weight.

[0040] The power adjustment determination module is used to determine the power adjustment amount of any artificial fish farm based on the sum of the power generation power and the maximum energy storage discharge power of the artificial fish farm minus the upper limit of the load power.

[0041] The adjustment module is used to adjust the power transmission between the artificial fish farms based on the power adjustment amount.

[0042] In one possible implementation, the step of detecting a transmission line fault between the regional power grid and the external power grid, and the total power generation of the regional power grid being less than the total load power within a preset time period, includes:

[0043] Monitor transmission line faults in the regional power grid and the external power grid.

[0044] If a fault is detected in the transmission line between the regional power grid and the external power grid, the historical wind and solar power generation and historical load power of each artificial fish farm within the regional power grid are obtained.

[0045] For any artificial fish farm, the average wind and solar power generation within a preset time period is predicted based on historical wind and solar power generation, and the average load power within a preset time period is predicted based on historical load power.

[0046] Based on the average wind and solar power generation and the average load power, the total power generation and total load power of the regional power grid within a preset time period are obtained, and it is determined whether the total power generation is less than the total load power.

[0047] This invention provides a method and apparatus for coordinated control of energy consumption in fully electric, zero-carbon artificial fish farms. When a transmission failure occurs, this invention determines the power consumption weight based on the oxygen consumption of each artificial fish farm, determines the upper limit of the load power based on the power consumption weight, and then determines the power adjustment amount for each artificial fish farm based on the upper limit of the load power, thereby adjusting the power transmission between the artificial fish farms. By balancing and regulating the load power of each artificial fish farm based on oxygen consumption power consumption weights, this invention avoids power mismatches in some artificial fish farms, extends the total time that artificial fish farms can be supplied with normal power, and reduces the probability of irreversible losses to artificial fish farms. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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.

[0049] Figure 1 This is an application scenario diagram of the energy power coordination and control method for all-electric zero-carbon artificial fish farms provided in the embodiments of the present invention;

[0050] Figure 2 This is a flowchart illustrating the implementation of the all-electric zero-carbon artificial fish farm energy power coordination control method provided in this embodiment of the invention.

[0051] Figure 3 This is a schematic diagram of the structure of the all-electric zero-carbon artificial fish farm energy power coordination control device provided in an embodiment of the present invention. Detailed Implementation

[0052] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0053] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0054] Figure 1This diagram illustrates an application scenario of the all-electric, zero-carbon artificial fish farm energy consumption coordination control method provided in this invention. Figure 1 As shown in the figure, the all-electric zero-carbon artificial fish farm provided in this embodiment of the invention includes multiple artificial fish farms, each corresponding to a power supply area. Each area may include wind and solar power generation, energy storage units, and electrical loads. Each area is connected to the external power grid through transmission lines.

[0055] Due to the geographical characteristics of artificial fish farms, power transmission lines are prone to failure, leading to low power supply reliability. To improve power supply reliability, power sharing can be implemented between multiple geographically proximate artificial fish farms. For example, an artificial fish farm with a larger power generation capacity can transmit electricity to an artificial fish farm with a smaller power generation capacity.

[0056] Artificial fish farms within the same region may belong to the same entity or different entities. Each artificial fish farm differs in its wind and solar power generation capacity, energy storage capacity, and electrical load capacity due to its specific geographical environment. Power sharing between multiple artificial fish farms can be settled using electricity consumption. For example, entity A, which provides input power, pays entity B, which provides output power, based on the total input electricity and a preset price. Furthermore, power sharing control between multiple artificial fish farms follows the power balance principle, meaning that output power equals input power.

[0057] When a power transmission failure occurs and the regional power grid of the all-electric zero-carbon artificial fish farm is disconnected from the external grid, the following two situations exist.

[0058] Scenario 1: The total generating capacity of the regional power grid is greater than or equal to the total load capacity, and power balance is achieved by adjusting the charging of energy storage. Overall, the SOC (State of Charge) of the energy storage units gradually increases or remains constant. In this case, power balance control mainly considers local consumption and optimal transmission costs, and the overall grid operation will not cause irreversible losses to the artificial fish farm. However, due to the efficiency of wind and solar power generation and the capacity limitations of energy storage batteries, Scenario 1 is difficult to maintain for a long time.

[0059] Scenario 2: The total generating capacity of the regional power grid is less than the total load capacity. Power balance is achieved by adjusting the discharge of energy storage. Overall, the State of Charge (SOC) of the energy storage unit gradually decreases. In this case, power balance control mainly considers ensuring a sufficiently long power supply duration to reduce irreversible losses in the artificial fish farm.

[0060] The electricity consumption characteristics of artificial fish farms allow for acceptable short-term power outages, but beyond a critical point in terms of outage duration, irreversible losses increase dramatically. To minimize losses, each artificial fish farm needs to have a maximum load capacity to ensure a suitable aquaculture environment. However, some artificial fish farms may have a load capacity exceeding their actual power demand, resulting in wasted power; others may have a load capacity below their actual power demand, leading to insufficient power and ultimately reducing the total power supply duration. Existing power balance-based control methods dispatch power to achieve mutual power assistance, ensuring that the electricity costs settled between artificial fish farms are far less than the potential subsequent irreversible losses.

[0061] This invention balances the load power of each artificial fish farm based on oxygen consumption and power weight, thereby avoiding power mismatch in some artificial fish farms. This solves the problems of low reliability of overall normal power supply time, unsuitability for artificial fish farm application scenarios, and high probability of irreversible losses in existing control methods.

[0062] Figure 2 The flowchart illustrates the implementation of the all-electric zero-carbon artificial fish farm energy power coordination control method provided in this embodiment of the invention.

[0063] For example, multiple artificial fishing grounds form a regional power grid. The topology of the regional power grid can be referenced... Figure 1 It should be noted that each artificial fish farm corresponds to a power supply zone. In the following description, "artificial fish farm" also refers to the power supply zone corresponding to that artificial fish farm.

[0064] Reference Figure 2 The above methods are detailed below:

[0065] Step 201: If a fault is detected in the transmission lines of the regional power grid and the external power grid, and the total power generation of the regional power grid is less than the total load power within a preset time period, then the power consumption weight of each artificial fish farm is determined based on the oxygen consumption of the artificial fish farm. The oxygen consumption is directly proportional to the power consumption weight.

[0066] In some embodiments, transmission line faults between the regional power grid and the external power grid are monitored in real time. For example, the voltage of the transmission lines between the regional power grid and the external power grid can be monitored in real time. As another example, the power of the transmission lines between the regional power grid and the external power grid can also be monitored in real time. Furthermore, if abnormalities are detected in the aforementioned transmission line voltage or power, it is determined that a transmission line fault between the regional power grid and the external power grid has been detected.

[0067] In some embodiments, the preset duration is determined based on historical fault durations. For example, the average historical fault duration is used as the preset duration. Another example is using the maximum historical fault duration as the preset duration. Because wind and solar power generation continuously changes, a comparison of power output at a given moment does not reflect the situation over a future period; therefore, power generation and load power within the preset duration are used.

[0068] For example, the total power generation of the regional power grid is the sum of the power generation of each artificial fish farm. Furthermore, the aforementioned power generation can be the average power generation at each moment within a preset time period.

[0069] For example, the total load power of the regional power grid is the sum of the load power of each artificial fish farm. Furthermore, the aforementioned load power can be the average value of the load power at each moment within a preset time period.

[0070] It should be noted that when the total power generation is less than the total load power, it means that when power balance is achieved by adjusting the energy storage discharge, the SOC of the energy storage unit will gradually decrease.

[0071] In some embodiments, the electricity consumption weight of each artificial fish farm is determined based on its oxygen consumption. Oxygen consumption is directly proportional to the electricity consumption weight.

[0072] It should be noted that the oxygen consumption of artificial fish farms is related to factors such as the type of aquatic products, their weight, and temperature. To maintain the dissolved oxygen concentration balance within the fish farm, continuous oxygenation is necessary, and thus the oxygen consumption determines the oxygenation efficiency.

[0073] For example, oxygen consumption is determined based on aquatic product type. Oxygen consumption is calculated based on the weight and oxygen consumption of each type of aquatic product. Aeration power is determined based on oxygen consumption, further determining the electricity consumption weight for each artificial fish farm.

[0074] In one possible implementation, if a transmission line fault between the regional power grid and the external power grid is detected, and the total power generation of the regional power grid is less than the total load power within a preset time period, including:

[0075] Step 2011: Monitor transmission line faults in the regional power grid and the external power grid.

[0076] Step 2012: If a fault is detected in the transmission line between the regional power grid and the external power grid, the historical wind and solar power generation and historical load power of each artificial fish farm in the regional power grid are obtained.

[0077] Step 2013: For any artificial fish farm, the average wind and solar power generation within a preset time period is predicted based on historical wind and solar power generation, and the average load power within a preset time period is predicted based on historical load power.

[0078] For example, the average historical wind and solar power generation at each moment within a preset time period is taken as the average wind and solar power generation within the preset time period.

[0079] For example, the average historical load power at each moment within a preset time period is used as the average load power within the preset time period.

[0080] Step 2014: Based on the average wind and solar power generation and the average load power, obtain the total power generation and total load power of the regional power grid within a preset time period, and determine whether the total power generation is less than the total load power.

[0081] For example, the total power generation of the regional power grid within a preset time period is obtained by summing the average wind and solar power generation of each artificial fish farm.

[0082] For example, the total load power of the regional power grid within a preset time period is obtained by summing the average load power of each artificial fish farm.

[0083] In one possible implementation, determining the electricity consumption weight of each artificial fish farm based on its oxygen consumption includes:

[0084] For any artificial fish farm, the electricity consumption weight is determined based on the following formula:

[0085]

[0086] Where W represents the electricity consumption weight of the artificial fish farm, η i M represents the oxygen consumption rate of the i-th fish species. i Δt represents the total weight of the i-th type of fish, Δt represents the preset duration, and k1 represents the preset efficiency coefficient of the aeration equipment in the artificial fish farm.

[0087] For example, the unit of oxygen consumption rate can be mg / kg.h, which is the weight of oxygen consumed per unit time and per unit weight of fish.

[0088] For example, the higher the oxygen consumption, the greater the required oxygenation power and the greater the electricity weight. Conversely, the lower the oxygen consumption, the less required oxygenation power and the smaller the electricity weight.

[0089] In one possible implementation, determining the electricity consumption weight of each artificial fish farm based on its oxygen consumption includes:

[0090] Step 2015: For any artificial fish farm, obtain the real-time monitored dissolved oxygen concentration of the artificial fish farm.

[0091] For example, the dissolved oxygen concentration in an artificial fish farm can be measured using a portable dissolved oxygen meter based on fluorescence. More exemplaryly, the unit of dissolved oxygen concentration can be mg / L, i.e., milligrams per liter.

[0092] Step 2016: Based on the principle that the oxygen consumption of the artificial fish farm remains unchanged, reduce the power of the aeration equipment until the dissolved oxygen concentration begins to decrease and remains constant at the preset dissolved oxygen concentration, and obtain the power of the aeration equipment at the current moment.

[0093] It's important to note that the relationship between dissolved oxygen concentration and aeration equipment power is not linear. On one hand, as the aeration equipment power increases to a certain level, the dissolved oxygen concentration reaches its maximum and remains constant. On the other hand, different aquatic species in different artificial fish farms have different requirements for minimum dissolved oxygen concentrations, i.e., different asphyxiation points. Since the oxygen consumption of an artificial fish farm is relatively constant over a short period, continuously reducing the aeration equipment power until the dissolved oxygen concentration begins to decrease indicates that the current dissolved oxygen concentration is below the maximum allowable dissolved oxygen value. Further reducing the aeration equipment power until the dissolved oxygen concentration stabilizes at a preset level is then implemented. The power at this point represents the power required to maintain the oxygen consumption balance. For example, the preset dissolved oxygen concentration must be greater than the asphyxiation point.

[0094] Step 2017: Determine the power consumption weight of the artificial fish farm based on the current power of the aeration equipment.

[0095] For example, the power of the oxygenation equipment used to maintain the oxygenation-consumption balance can be used as the power consumption weight of the artificial fish farm.

[0096] In some embodiments, determining the power consumption weight of each artificial fish farm based on its oxygen consumption includes: for any artificial fish farm, stopping oxygenation and monitoring the decrease in oxygen concentration per unit volume, and using this to determine the oxygen consumption and the power consumption weight of that artificial fish farm.

[0097] Step 202: Determine the upper limit of the load power for each artificial fish farm based on its electricity consumption weight and total power generation. The upper limit of the load power for each artificial fish farm is proportional to its electricity consumption weight.

[0098] In some embodiments, the upper limit of the load power of an artificial fish farm is determined based on the electricity consumption weight determined in the previous step. The upper limit of the load power of each artificial fish farm is proportional to its electricity consumption weight.

[0099] In one possible implementation, the upper limit of the load power of each artificial fish farm is determined based on its electricity consumption weight and total power generation, including:

[0100] For any artificial fish farm, the upper limit of its load power is determined based on the following formula:

[0101]

[0102] Among them, P j-limit Q represents the upper limit of the load power of the j-th artificial fish farm, where j is an integer greater than or equal to 1. total W represents the total power generation capacity. j Let k represent the electricity consumption weight of the j-th artificial fish farm, and k2 represent a preset coefficient greater than 1.

[0103] It should be noted that the sum of the upper limits of the load power of each artificial fish farm exceeds the total power generation power. The difference between the two can be balanced in subsequent steps by adjusting the discharge power of the energy storage.

[0104] Step 203: For any artificial fish farm, determine the power adjustment amount of the artificial fish farm by subtracting the upper limit of the load power from the sum of the power generation and maximum energy storage discharge power of the artificial fish farm.

[0105] It should be noted that determining the power adjustment amount in step 203 does not mean that each artificial fish farm must output power according to this adjustment amount, but rather determines the range of power that each artificial fish farm can output, whether input power is required, and the amount of input power required.

[0106] Step 204: Adjust the power transmission between the artificial fish farms based on the power adjustment amount.

[0107] For example, the load power of each artificial fish farm does not exceed the upper limit of the load power.

[0108] In one possible implementation, adjusting the power transmission between artificial fishing grounds based on the power adjustment amount includes: for any artificial fishing ground, if the power adjustment amount is greater than or equal to 0, then the surplus power of that artificial fishing ground is output.

[0109] As a further example, the energy storage power of the artificial fish farm is adjusted so that the sum of the power generation and energy storage power of the artificial fish farm is equal to the sum of the load power and the output power.

[0110] In one possible implementation, adjusting the power transmission between artificial fishing grounds based on the power adjustment amount also includes: for any artificial fishing ground, if the power adjustment amount is less than 0, then inputting the surplus power of other artificial fishing grounds into that artificial fishing ground.

[0111] For example, if the power adjustment amount is less than 0, the energy storage discharge power of the artificial fish farm is adjusted to the maximum, and the surplus power of other artificial fish farms is input to this artificial fish farm. This ensures that the sum of the power generation, energy storage discharge power, and input power of the artificial fish farm equals the load power.

[0112] In some embodiments, power transmission between artificial fishing grounds is adjusted based on the power adjustment amount and the principle of minimizing transmission loss.

[0113] For example, for any artificial fishing ground with a power adjustment amount less than zero, one or more artificial fishing grounds and their transmission power values ​​are determined according to the principle of minimizing transmission loss, which input power to the artificial fishing ground with a power adjustment amount less than zero.

[0114] This invention, when a transmission failure occurs, determines the power consumption weight based on the oxygen consumption of each artificial fish farm, determines the upper limit of the load power based on the power consumption weight, and then determines the power adjustment amount for each artificial fish farm based on the upper limit of the load power, thereby adjusting the power transmission between the artificial fish farms. This invention, by balancing and regulating the load power of each artificial fish farm based on the oxygen consumption weight, avoids situations where the power consumption of some artificial fish farms is mismatched, extends the total time that artificial fish farms can be supplied with normal power, and reduces the probability of irreversible losses to artificial fish farms.

[0115] As the SOC of energy storage decreases, the energy storage discharge power will also decrease, and the energy storage power, power generation power, and input power may be less than the minimum operating power of some high-power oxygenation equipment.

[0116] In one possible implementation, after adjusting the power transmission between artificial fish farms based on the power adjustment amount, the following is also included:

[0117] Step 301: Obtain the dissolved oxygen concentration of each artificial fish farm under real-time monitoring.

[0118] Step 302: If the SOC of the regional power grid is lower than the preset value, and the sum of the power adjustment amount and the input power of any artificial fish farm is less than the minimum operating power of the oxygenation equipment, then obtain the lower limit of dissolved oxygen concentration for each artificial fish farm.

[0119] Step 303: Determine the artificial fishery with the largest ratio of dissolved oxygen concentration to the lower limit of dissolved oxygen concentration.

[0120] For example, the lower limit of dissolved oxygen concentration is determined based on the corresponding asphyxiation point of the aquatic type in the artificial fishery.

[0121] Step 304: Adjust the upper limit of the load power of the artificial fishery with the largest lower limit ratio to 0, and redetermine the power adjustment amount of the artificial fishery and adjust the power transmission between each artificial fishery.

[0122] Based on the power consumption characteristics of artificial fish farms, this invention extends the total duration of normal power supply for artificial fish farms by coordinating and controlling the intermittent power supply of other artificial fish farms when the power supply is less than the minimum operating power of high-power aeration equipment, thereby reducing the probability of irreversible losses to artificial fish farms.

[0123] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0124] The following are device embodiments of the present invention. For details not described in detail, please refer to the corresponding method embodiments described above.

[0125] Figure 3 A schematic diagram of the energy-power coordination and control device for an all-electric zero-carbon artificial fish farm provided in an embodiment of the present invention is shown. For ease of explanation, only the parts related to the embodiment of the present invention are shown, and are described in detail below:

[0126] Multiple artificial fishing grounds form a regional power grid. For example... Figure 3 As shown, the all-electric zero-carbon artificial fish farm energy consumption coordination and control device 4 includes:

[0127] The weighting determination module is used to determine the electricity consumption weight of each artificial fish farm based on its oxygen consumption if a fault is detected in the transmission lines of the regional power grid and the external power grid, and the total power generation of the regional power grid is less than the total load power within a preset time period. Oxygen consumption is directly proportional to the electricity consumption weight.

[0128] The power limit determination module is used to determine the upper limit of the load power for each artificial fish farm based on its electricity consumption weight and total power generation. The upper limit of the load power for each artificial fish farm is proportional to its electricity consumption weight.

[0129] The power adjustment determination module is used to determine the power adjustment amount for any artificial fish farm based on the sum of the artificial fish farm's power generation and maximum energy storage discharge power minus the upper limit of the load power.

[0130] The adjustment module is used to adjust the power transmission between artificial fish farms based on the power adjustment amount.

[0131] This invention, in the event of a transmission failure, determines the power consumption weight based on the oxygen consumption of each artificial fish farm, determines the upper limit of the load power based on the power consumption weight, and then determines the power adjustment amount for each artificial fish farm based on the upper limit of the load power, thereby adjusting the power transmission between the artificial fish farms. This invention, by balancing and regulating the load power of each artificial fish farm based on the oxygen consumption power weight, avoids situations where the power consumption of some artificial fish farms is mismatched, extends the total time that artificial fish farms can be supplied with normal power, and reduces the probability of irreversible losses to artificial fish farms.

[0132] In one possible implementation, if a transmission line fault between the regional power grid and the external power grid is detected, and the total power generation of the regional power grid is less than the total load power within a preset time period, including:

[0133] Monitor transmission line faults in the regional power grid and external power grid.

[0134] If a fault is detected in the transmission line between the regional power grid and the external power grid, the historical wind and solar power generation and historical load power of each artificial fish farm within the regional power grid will be obtained.

[0135] For any artificial fish farm, the average wind and solar power generation within a preset time period is predicted based on historical wind and solar power generation, and the average load power within a preset time period is predicted based on historical load power.

[0136] Based on the average wind and solar power generation and the average load power, the total power generation and total load power of the regional power grid within a preset time period are obtained, and it is determined whether the total power generation is less than the total load power.

[0137] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0138] Those skilled in the art will recognize that the templates, units, and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0139] If a module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium. When executed by a processor, the computer program can implement the steps of the above embodiments of the energy power coordination control method for all-electric zero-carbon artificial fish farms. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory, a random access memory, an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0140] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A method for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm, characterized in that, The artificial fish farms constitute a regional power grid; the method includes: If a fault is detected in the transmission lines of the regional power grid and the external power grid, and the total power generation of the regional power grid is less than the total load power within a preset time period, then the power consumption weight of each artificial fish farm is determined based on the oxygen consumption of the artificial fish farm; the oxygen consumption is proportional to the power consumption weight. Based on the electricity consumption weight of each artificial fish farm and the total power generation, the upper limit of the load power of each artificial fish farm is determined; the upper limit of the load power of each artificial fish farm is proportional to the electricity consumption weight. For any artificial fish farm, the power adjustment amount of the artificial fish farm is determined by subtracting the upper limit of the load power from the sum of the power generation power and the maximum energy storage discharge power of the artificial fish farm. Based on the aforementioned power adjustment amount, the power transmission between each artificial fishing ground is adjusted; After adjusting the power transmission between the artificial fish farms based on the aforementioned power adjustment amount, the method further includes: Obtain the dissolved oxygen concentration of each artificial fish farm under real-time monitoring; If the SOC of the regional power grid is lower than the preset value, and the sum of the power adjustment amount and the input power of any artificial fish farm is less than the minimum opening power of the oxygenation equipment, then the lower limit of dissolved oxygen concentration of each artificial fish farm is obtained. Identify the artificial fishery with the highest ratio of dissolved oxygen concentration to the lower limit of dissolved oxygen concentration; The upper limit of the load power of the artificial fish farm with the largest lower limit ratio is adjusted to 0, and the power adjustment amount of the artificial fish farm is re-determined, and the power transmission between each artificial fish farm is adjusted.

2. The method for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm according to claim 1, characterized in that, The condition that if a fault is detected in the transmission line between the regional power grid and the external power grid, and the total power generation of the regional power grid is less than the total load power within a preset time period includes: Monitor transmission line faults between the regional power grid and the external power grid; If a fault is detected in the transmission line between the regional power grid and the external power grid, the historical wind and solar power generation and historical load power of each artificial fish farm within the regional power grid are obtained. For any artificial fish farm, the average wind and solar power generation within a preset time period is predicted based on historical wind and solar power generation, and the average load power within a preset time period is predicted based on historical load power. Based on the average wind and solar power generation and the average load power, the total power generation and total load power of the regional power grid within a preset time period are obtained, and it is determined whether the total power generation is less than the total load power.

3. The method for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm according to claim 1, characterized in that, The determination of the electricity consumption weight of each artificial fish farm based on its oxygen consumption includes: For any artificial fish farm, the electricity consumption weight of the artificial fish farm is determined based on the following formula: Where W represents the electricity consumption weight of the artificial fish farm, η i M represents the oxygen consumption rate of the i-th fish species. i Δt represents the total weight of the i-th type of fish, Δt represents the preset duration, and k1 represents the preset efficiency coefficient of the aeration equipment in the artificial fish farm.

4. The method for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm according to claim 1, characterized in that, The determination of the electricity consumption weight of each artificial fish farm based on its oxygen consumption includes: For any artificial fish farm, obtain the real-time monitored dissolved oxygen concentration. Based on the principle that the oxygen consumption of the artificial fish farm remains constant, the power of the oxygenation equipment is reduced until the dissolved oxygen concentration begins to decrease, and the power of the oxygenation equipment at the current moment is obtained. The power consumption weight of the artificial fish farm is determined based on the current power of the oxygenation equipment.

5. The method for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm according to claim 1, characterized in that, The determination of the upper limit of load power for each artificial fish farm based on the electricity consumption weight of each artificial fish farm and the total power generation includes: For any artificial fish farm, the upper limit of its load power is determined based on the following formula: Among them, P j-limit Q represents the upper limit of the load power of the j-th artificial fish farm, where j is an integer greater than or equal to 1. total W represents the total power generation capacity. j Let k represent the electricity consumption weight of the j-th artificial fish farm, and k2 represent a preset coefficient greater than 1.

6. The method for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm according to claim 1, characterized in that, The adjustment of power transmission between artificial fishing grounds based on the power adjustment amount includes: For any artificial fish farm, if the power adjustment amount is greater than or equal to 0, the surplus power of the artificial fish farm will be output.

7. The method for coordinated control of energy consumption in an all-electric, zero-carbon artificial fish farm according to claim 6, characterized in that, The adjustment of power transmission between artificial fishing grounds based on the power adjustment amount also includes: For any artificial fish farm, if the power adjustment amount is less than 0, the surplus power of other artificial fish farms will be input to that artificial fish farm.

8. A power coordination and control device for an all-electric, zero-carbon artificial fish farm, characterized in that, Multiple artificial fish farms form a regional power grid; the device includes: The weight determination module is used to determine the power consumption weight of each artificial fish farm based on the oxygen consumption of the artificial fish farm if a fault is detected in the transmission line between the regional power grid and the external network, and the total power generation of the regional power grid is less than the total load power within a preset time period; the oxygen consumption is proportional to the power consumption weight. The power limit determination module is used to determine the load power limit of each artificial fish farm based on the electricity consumption weight of each artificial fish farm and the total power generation; the load power limit of each artificial fish farm is proportional to the electricity consumption weight. The power adjustment amount determination module is used to determine the power adjustment amount of any artificial fish farm based on the sum of the power generation power and the maximum energy storage discharge power of the artificial fish farm minus the upper limit of the load power. The adjustment module is used to adjust the power transmission between artificial fish farms based on the power adjustment amount. After adjusting the power transmission between artificial fish farms based on the power adjustment amount, the module further includes: acquiring the dissolved oxygen concentration of each artificial fish farm under real-time monitoring; if the energy storage SOC of the regional power grid is lower than a preset value, and the sum of the power adjustment amount and input power of any artificial fish farm is less than the minimum operating power of the aeration equipment, then acquiring the lower limit of the dissolved oxygen concentration of each artificial fish farm; determining the artificial fish farm with the largest ratio of dissolved oxygen concentration to the lower limit; adjusting the upper limit of the load power of the artificial fish farm with the largest lower limit ratio to 0, and re-determining the power adjustment amount of the artificial fish farm and adjusting the power transmission between the artificial fish farms.

9. The all-electric zero-carbon artificial fish farm energy power coordination and control device according to claim 8, characterized in that, The condition that if a fault is detected in the transmission line between the regional power grid and the external power grid, and the total power generation of the regional power grid is less than the total load power within a preset time period includes: Monitor transmission line faults between the regional power grid and the external power grid; If a fault is detected in the transmission line between the regional power grid and the external power grid, the historical wind and solar power generation and historical load power of each artificial fish farm within the regional power grid are obtained. For any artificial fish farm, the average wind and solar power generation within a preset time period is predicted based on historical wind and solar power generation, and the average load power within a preset time period is predicted based on historical load power. Based on the average wind and solar power generation and the average load power, the total power generation and total load power of the regional power grid within a preset time period are obtained, and it is determined whether the total power generation is less than the total load power.

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