Livestock park electrified facility integrated configuration method based on low-carbon level and optimal breeding benefit

Abstract

The invention provides a livestock park electrified facility integration configuration method based on a low-carbon level and optimal breeding benefit. The method comprises park comprehensive energy system integration, park energy distribution, electrified facility energy transfer and total cost optimization. According to the method, integration scheme configuration is carried out on multivariate input, energy can be utilized more effectively, waste is reduced, and dependence on external energy is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of park-type power system design, and in particular to an integrated configuration method for electrification facilities in a livestock park based on low carbon level and optimal breeding efficiency. Background Art

[0002] The design of an integrated electrification solution with the goal of low carbon level and optimal breeding benefits is an important means to promote the sustainable development and intelligent breeding of animal husbandry parks. Through scientific optimization and scheduling of the park's comprehensive energy system, accurate analysis and determination of the energy demand and related constraints of various electrification facilities in the park, it is ensured that energy is highly matched between supply and demand, thereby avoiding resource waste, improving energy utilization efficiency, fundamentally reducing carbon emissions generated in the process of energy consumption, and promoting the park to move towards low-carbon operation. Integrate clean energy technology with modern electrification equipment, such as intelligent temperature control, ventilation, lighting and automated feeding systems, gradually reduce dependence on traditional fossil energy, maximize the exploration and utilization of renewable energy such as solar energy and wind energy, and realize the widespread application of clean energy in animal husbandry parks. This will not only help the park achieve significant carbon reduction, but also set a model for the overall green and low-carbon development of the agricultural sector, help the steady advancement of the country's "dual carbon" strategic goals, promote animal husbandry to find a balance between ecological protection and economic benefits, and provide solid technical support and path innovation for the modernization of agriculture. However, the existing integrated configuration solutions still only solve the problem in a single dimension, without fully considering multiple influencing factors, so they do not effectively utilize energy, reduce waste and reduce dependence on external energy. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to propose an integrated configuration method for electrification facilities in livestock parks based on low carbon levels and optimal breeding benefits.

[0004] The present invention is realized by the following technical scheme, which proposes an integrated configuration method of electrification facilities in a livestock park based on low carbon level and optimal breeding benefits, the method comprising park comprehensive energy system integration, park energy distribution, energy transmission of electrification facilities and total cost optimization;

[0005] In the integration of the park's comprehensive energy system, resources on the power generation side are coordinated, including production units of wind power, solar photovoltaic and natural gas new energy, and cogeneration systems; in the park's energy distribution, the scheduling plan configuration is optimized to meet the different needs of the slaughtering area, cold storage area and breeding area on the energy user side, and the energy consumption of various electrification facilities is adjusted to achieve efficient energy utilization; in the energy transmission of electrification facilities, the heat energy generated by the gas turbine will be transmitted to the waste heat recovery boiler; in the total cost optimization, the goal is to minimize the construction and operation costs and effective carbon emissions in the park's comprehensive energy system, and reasonably allocate energy consumption and energy transmission through coupled scheduling of various electrification facilities; thereby achieving total cost optimization.

[0006] Furthermore, the breeding area and cold storage area require a stable supply of heat and cold energy, while the slaughtering area has higher requirements for the continuity and reliability of electricity; during the period of low electricity prices, the charging of energy storage equipment is increased, and during the period of peak electricity prices, the purchase of electricity is reduced and energy storage equipment is used to supply electricity.

[0007] Furthermore, the carbon emission sources in the park's integrated energy system include: external electricity purchase, gas turbine GT and waste heat recovery boiler WHB; the gas turbine equipment model is:

[0008]

[0009] Where P gt (t) represents the input power of GT in unit time period t; They represent the efficiency of GT in generating electricity and heat respectively; Indicates the upper and lower limits of GT input power; P gt,e (t), P gt,h (t) represents the power generation and heating of GT in a unit time period; Respectively represent the upper and lower limits of GT climbing power.

[0010] Furthermore, the heat energy generated by the gas turbine will be transferred to the waste heat recovery boiler. The equipment model is:

[0011] P WHB,h (t) = η WHB P h,WHB (t)

[0012] Where P h,WHB (t) is the heat power from GT to WHB in unit time period t; η WHB is the conversion efficiency of WHB.

[0013] Furthermore, the carbon emission model of the park's integrated energy system is:

[0014]

[0015] System overall carbon emissions M sys Carbon emissions from external electricity purchases M e and carbon emissions from gas turbines and waste heat boilers M MT Composition; n gt 、n WHB are the number of GT and WHB respectively; β e,h is the electric heat conversion coefficient; γ e ,,γ h are the carbon emissions per unit of electrical power and per unit of thermal power respectively; T is the scheduling period; P e (t) is the power purchase amount of the system in unit time period t.

[0016] Furthermore, the operation cost of the park's integrated energy system includes energy purchase cost, equipment maintenance cost, penalty cost for abandoned solar power, and energy sales income; its model is:

[0017]

[0018] In the formula, α t , β t are the electricity price and gas price in unit time period t respectively; P g (t) is the gas purchase volume of the system in unit time period t; θ t is the electricity price sold to the upper power grid in unit time period t; ψ gt , WHB , e , h , ac are the unit operation and maintenance costs of gas turbine, waste heat boiler, battery, heat storage tank and central air conditioner respectively; n gt 、n WHB 、n edis 、n hdis 、n ac are the number of devices respectively; P ac (t) represents the AC input power in unit time period t; P edis (t) is the power generation of the battery in unit time period t; P hdis (t) is the heating power of the heat storage tank in unit time period t; pv The penalty cost for abandoning light for the unit; is the abandoned optical power in unit time period t; P sell (t) is the electricity sold in unit time period t.

[0019] Furthermore, with low carbon level and optimal aquaculture income as the goal, the overall objective function is set as follows:

[0020]

[0021] Where M sys,0 、frun,0 They are the optimization results of the integrated model of electrification facilities under a single objective with the optimal low-carbon level and aquaculture income as the target; δ is the preference coefficient, and δ∈[0,1]. When δ=0, it means that the system only considers the low-carbon level in the plan, and when δ=1, it means that the system only considers the aquaculture income in the plan.

[0022] Furthermore, δ is set to 0.5.

[0023] The present invention has the following beneficial effects:

[0024] The method of the present invention can utilize energy more efficiently, reduce waste, and reduce dependence on external energy by configuring an integrated solution for multiple inputs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a block diagram of the integrated configuration and energy structure of the electrification facilities of the present invention. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1 The present invention proposes an integrated configuration method for electrification facilities in animal husbandry parks based on low carbon levels and optimal breeding benefits. The integrated configuration method for electrification facilities in animal husbandry parks is a complex and multi-dimensional problem, involving the coordination, cooperation and conversion of multiple energy sources such as electricity, heat and cold. The method includes park comprehensive energy system integration, park energy distribution, energy transmission of electrification facilities and total cost optimization;

[0028] In the integration of the park's comprehensive energy system, the resources on the power generation side are coordinated, including the production units of wind power, solar photovoltaic and natural gas new energy, as well as energy coupling units such as cogeneration systems. The operating characteristics and production efficiency of these units directly affect the energy supply and cost of the park. By configuring these multiple inputs in an integrated solution, energy can be used more effectively, waste can be reduced, and dependence on external energy can be reduced. In the energy allocation of the park, the energy demand and system constraints of each area of ​​the park can be determined on the basis of completing the refined feed estimation of livestock breeding and the growth energy consumption forecast. Furthermore, according to the different needs of the slaughtering area, cold storage area, and breeding area on the energy user side, the scheduling plan configuration is optimized and various electrification facilities are adjusted. Energy consumption, such as air conditioning, lighting, industrial machinery, etc., to achieve efficient use of energy; for example: the breeding area and cold storage area require a stable supply of heat and cold energy, while the slaughter area has higher requirements for the continuity and reliability of electricity; during the period of low electricity prices, increase the charging of energy storage equipment, and reduce electricity purchases during the peak period of electricity prices, and use energy storage equipment to supply electricity; in the energy transmission of electrification facilities, the heat energy generated by the gas turbine will be transmitted to the waste heat recovery boiler; in the total cost optimization, the goal is to minimize the construction and operation costs and effective carbon emissions in the park's comprehensive energy system, and reasonably allocate energy consumption and energy transmission through coupling scheduling of various electrification facilities; compared with the original independent operation mode of each device, the total cost can be optimized to obtain higher breeding benefits. Although the initial construction cost and operation and maintenance cost are high, the cost of purchasing electricity and heat from the outside of the system is greatly reduced due to the more reasonable combination of electrical equipment.

[0029] The carbon emission sources in the park's integrated energy system include: external electricity purchase, gas turbine GT and waste heat recovery boiler WHB; the gas turbine equipment model is:

[0030]

[0031] Where P gt (t) represents the input power of GT in unit time period t; They represent the efficiency of GT in generating electricity and heat respectively; Indicates the upper and lower limits of GT input power; P gt,e (t), P gt,h (t) represents the power generation and heating of GT in a unit time period; Respectively represent the upper and lower limits of GT climbing power.

[0032] The heat energy generated by the gas turbine will be transferred to the waste heat recovery boiler. The equipment model is:

[0033] P WHB,h (t) = η WHB P h,WHB (t)

[0034] Where P h,WHB (t) is the heat power from GT to WHB in unit time period t; η WHB is the conversion efficiency of WHB.

[0035] The carbon emission model of the park's comprehensive energy system is:

[0036]

[0037] System overall carbon emissions M sys Carbon emissions from external electricity purchases M e and carbon emissions from gas turbines and waste heat boilers M MT Composition; n gt 、n WHB are the number of GT and WHB respectively; β e,h is the electric heat conversion coefficient; γ e ,,γ h are the carbon emissions per unit of electrical power and per unit of thermal power respectively; T is the scheduling period; P e (t) is the power purchase amount of the system in unit time period t.

[0038] The operating costs of the park's comprehensive energy system include energy purchase costs, equipment maintenance costs, penalty costs for abandoned solar power, and energy sales revenue; its model is:

[0039]

[0040] In the formula, α t , β t are the electricity price and gas price in unit time period t respectively; P g (t) is the gas purchase volume of the system in unit time period t; θ t is the electricity price sold to the upper power grid in unit time period t; ψ gt , WHB , e , h , ac are the unit operation and maintenance costs of gas turbine, waste heat boiler, battery, heat storage tank and central air conditioner respectively; n gt 、n WHB 、n edis 、n hdis 、n ac are the number of devices respectively; P ac (t) represents the AC input power in unit time period t; P edis (t) is the power generation of the battery in unit time period t; P hdis (t) is the heating power of the heat storage tank in unit time period t; pv The penalty cost for abandoning light for the unit; is the abandoned optical power in unit time period t; P sell (t) is the electricity sold in unit time period t.

[0041] With low carbon level and optimal aquaculture benefits as the goals, the overall objective function is set as follows:

[0042]

[0043] Where M sys,0 、f run,0 They are the optimization results of the integrated model of electrification facilities under the single objective of optimizing low carbon level and taking aquaculture income as the target; δ is the preference coefficient, and δ∈[0,1]. When δ=0, it means that the system only considers low carbon level in the scheme, and when δ=1, it means that the system only considers aquaculture income in the scheme. In order to take into account both low carbon level and aquaculture income, δ is set to 0.5.

[0044] According to the livestock park energy consumption forecast model, combined with the historical average electricity and gas prices and the basic parameters of each equipment, the objective function can be used to determine the integrated installation plan of the electrification facilities in the park.

[0045] The above only expresses the preferred implementation mode of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An integrated configuration method for electrification facilities in livestock parks based on low carbon levels and optimal breeding benefits, characterized by: The method includes park comprehensive energy system integration, park energy distribution, energy transmission of electrification facilities, and total cost optimization; In the integration of the park's comprehensive energy system, the resources on the power generation side are coordinated, including the production units of wind power, solar photovoltaic and natural gas new energy, and the cogeneration system; in the energy distribution of the park, the scheduling scheme configuration is optimized according to the different needs of the slaughtering area, cold storage area and breeding area on the energy user side, and the energy consumption of various electrification facilities is adjusted to achieve efficient use of energy; in the energy transmission of electrification facilities, the heat energy generated by the gas turbine will be transmitted to the waste heat recovery boiler; in the total cost optimization, the goal is to minimize the construction and operation costs and effective carbon emissions in the park's comprehensive energy system, and reasonably allocate energy consumption and energy transmission through coupling scheduling of various electrification facilities; This allows the overall cost to be optimized.

2. The method according to claim 1, characterized in that The breeding area and cold storage area require a stable supply of heat and cold energy, while the slaughtering area has higher requirements for the continuity and reliability of electricity; during the period of low electricity prices, the charging of energy storage equipment is increased, and during the period of peak electricity prices, the purchase of electricity is reduced and energy storage equipment is used to supply electricity.

3. The method according to claim 2, characterized in that The carbon emission sources in the park's integrated energy system include: external electricity purchase, gas turbine GT and waste heat recovery boiler WHB; the gas turbine equipment model is: Where P gt (t) represents the input power of GT in unit time period t; They represent the efficiency of GT in generating electricity and heat respectively; Indicates the upper and lower limits of GT input power; P gt,e (t), P gt,h (t) represents the power generation and heating of GT in a unit time period; Respectively represent the upper and lower limits of GT climbing power.

4. The method according to claim 3, characterized in that The heat energy generated by the gas turbine will be transferred to the waste heat recovery boiler. The equipment model is: P WHB,h (t)=η WHB P h,WHB (t) Where P h,WHB (t) is the heat power from GT to WHB in unit time period t; η WHB is the conversion efficiency of WHB.

5. The method according to claim 4, characterized in that The carbon emission model of the park's comprehensive energy system is: System overall carbon emissions M sys Carbon emissions from external electricity purchases M e and carbon emissions from gas turbines and waste heat boilers M MT Composition; n gt 、n WHB are the number of GT and WHB respectively; β e,h is the electric heat conversion coefficient; γ e ,,γ h are the carbon emissions per unit of electrical power and per unit of thermal power respectively; T is the scheduling period; P e (t) is the power purchase amount of the system in unit time period t.

6. The method according to claim 5, characterized in that The operating costs of the park's comprehensive energy system include energy purchase costs, equipment maintenance costs, penalty costs for abandoned solar power, and energy sales revenue; its model is: In the formula, α t , β t are the electricity price and gas price in unit time period t respectively; P g (t) is the gas purchase volume of the system in unit time period t; θ t is the electricity price sold to the upper power grid in unit time period t; ψ gt , WHB , e , h , ac are the unit operation and maintenance costs of gas turbine, waste heat boiler, battery, heat storage tank and central air conditioner respectively; n gt 、n WHB 、n edis 、n hdis 、n ac are the number of devices respectively; P ac (t) represents the AC input power in unit time period t; P edis (t) is the power generation of the battery in unit time period t; P hdis (t) is the heating power of the heat storage tank in unit time period t; pv The penalty cost for abandoning light for the unit; is the abandoned optical power in unit time period t; P sell (t) is the electricity sold in unit time period t.

7. The method according to claim 6, characterized in that With low carbon level and optimal aquaculture benefits as the goals, the overall objective function is set as follows: Where M sys,0 、f run,0 They are the optimization results of the integrated model of electrification facilities under the single objective of taking low carbon level as the best and taking aquaculture income as the target; δ is the preference coefficient, and δ∈[0,1]. When δ=0, it means that the system only considers the low carbon level in the plan. When δ=1, it means that the system only considers the breeding benefits in the plan.

8. The method according to claim 7, characterized in that δ is set to 0.5.

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