Installation scheme optimization method of power generation device and related equipment

Abstract

The embodiment of the invention discloses a method for optimizing an installation scheme of a power generation device and related equipment. The method comprises the following steps: acquiring the average winter generation power of a photovoltaic power generation system according to the maximum installed capacity of the power generation device in the photovoltaic power generation system and the total winter daily horizontal plane solar radiation quantity and irradiance of an area where the photovoltaic power generation system is located; setting a generation power constraint condition of the photovoltaic power generation system based on the influence of the electric load and the electric equipment of the photovoltaic power generation system; and obtaining an optimal installation scheme of a power generation device in the photovoltaic power generation system based on the power generation power constraint condition, the yield rate of the photovoltaic power generation system and the winter average power generation power. According to the method, the influence of the electric load and the electric equipment of the photovoltaic power generation system is analyzed, the power generation power constraint condition of the photovoltaic power generation system is set, and the optimal power generation device installation scheme is intelligently determined based on the winter average power generation power and the power generation power constraint condition, so that the winter power generation efficiency and income of the photovoltaic power generation system are effectively improved.

Description

[Technical field]

[0001] The present invention relates to the technical field of photovoltaic equipment planning, and in particular to an installation scheme optimization method for a power generation device and related equipment. [Background technology]

[0002] Traditional photovoltaic power generation system installation plans are usually based on the average summer power generation for equipment deployment planning, while the impact on winter power generation is not fully considered. In winter, the sunshine time is short and the light intensity is low, which significantly reduces the photovoltaic power generation. Therefore, the installation plan based on summer power generation planning may lead to insufficient winter power generation capacity and fail to fully utilize renewable energy, thus affecting winter benefits. [Summary of the invention]

[0003] In view of this, the present invention provides an installation scheme optimization method for a power generation device and related equipment.

[0004] The specific technical scheme of the first embodiment of the present invention is: a method for optimizing the installation scheme of a power generation device, the method comprising: obtaining the average winter power generation power of the photovoltaic power generation system based on the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total daily horizontal solar radiation and irradiance in winter in the area where the photovoltaic power generation system is located; setting the power generation power constraint conditions of the photovoltaic power generation system based on the influence of the electric load and electrical equipment of the photovoltaic power generation system; obtaining the optimal installation scheme of the power generation device in the photovoltaic power generation system based on the power generation constraint conditions, the rate of return of the photovoltaic power generation system and the average winter power generation; the optimal installation scheme includes the optimal total installed capacity of the power generation device, the optimal installation specification of the power generation device and the optimal number of installed power generation devices.

[0005] Preferably, the average winter power generation is obtained using the following formula:

[0006]

[0007] Among them, P pvavggen is the average power generation in winter, H daywinter is the total solar radiation on the horizontal surface in winter in the area where the photovoltaic power generation system is located, CAP maxin is the maximum installed capacity of the power generation device, H s is the irradiance under standard conditions, K is the comprehensive efficiency coefficient, k 1 is a constant.

[0008] Preferably, the power generation constraint conditions of the photovoltaic power generation system are set based on the influence of the electric load and electric equipment of the photovoltaic power generation system, including: setting the power generation constraint conditions of the photovoltaic power generation system according to the electric load of the photovoltaic power generation system at different times, the energy storage charging power at different times, the electric power consumption of different equipment and the photovoltaic absorption ratio of the photovoltaic power generation system.

[0009] Preferably, the power generation constraint condition is obtained using the following formula:

[0010]

[0011] Among them, P pvavggen is the average power generation in winter, is the electrical load of the photovoltaic power generation system at time t, is the energy storage charging power of the photovoltaic power generation system at time t, and is the power consumption of different power-consuming devices in the photovoltaic power generation system at time t, r con is the photovoltaic consumption ratio.

[0012] Preferably, the rate of return is obtained by the following method: the annual power generation of the photovoltaic power generation system is obtained according to the actual installed capacity of the power generation device and the annual attenuation rate of the components of the power generation device; the annual power consumption of the photovoltaic power generation system is obtained according to the annual power generation and the failure rate and operating power consumption rate of the power generation device; the rate of return of the photovoltaic power generation system is obtained according to the annual power consumption and operating data of the photovoltaic power generation system in different photovoltaic operating periods; the operating data includes comprehensive electricity price, grid-connected power, grid-connected electricity price, partner share, first-year construction cost, technical transformation cost, operating cost, depreciation cost, value-added tax and income tax.

[0013] Preferably, the annual power generation is obtained using the following formula:

[0014]

[0015] in, is the annual power generation in the i-th year, H year is the annual total horizontal solar radiation, CAP in is the actual installed capacity of the power generation device, H s is the irradiance under standard conditions, K is the comprehensive efficiency coefficient, r fde is the first-year attenuation rate of the component, r de is the annual attenuation rate of the component starting from the next year, r fde and r de The annual decay rate of the components is is the annual power generation in the first year.

[0016] Preferably, the annual power consumption is obtained by using the following formula:

[0017]

[0018] in, is the power consumption in the i-th year, is the annual power generation in year i, r fault is the failure rate, r ele is the operating power consumption rate, r con is the photovoltaic consumption ratio.

[0019] The specific technical solution of the second embodiment of the present invention is: a system for optimizing the installation plan of a power generation device, the system comprising: a power generation acquisition module, a constraint condition acquisition module and an installation quantity acquisition module; the power generation acquisition module is used to obtain the average power generation power of the photovoltaic power generation system in winter according to the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total daily horizontal solar radiation and irradiance in winter in the area where the photovoltaic power generation system is located; the constraint condition acquisition module is used to set the power generation constraint conditions of the photovoltaic power generation system based on the influence of the electrical load and electrical equipment of the photovoltaic power generation system; the installation quantity acquisition module is used to obtain the optimal installation plan of the power generation device in the photovoltaic power generation system based on the power generation constraint conditions, the rate of return of the photovoltaic power generation system and the average power generation power in winter; the optimal installation plan includes the optimal total installed capacity of the power generation device, the optimal installation specification of the power generation device and the optimal number of installed power generation devices.

[0020] The specific technical solution of the third embodiment of the present invention is: an installation scheme optimization device for a power generation device, comprising a memory and a processor, the memory storing a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method described in any one of the first embodiments of the present application.

[0021] The specific technical solution of the fourth embodiment of the present invention is: a computer-readable storage medium storing a computer program, which, when executed by a processor, enables the processor to perform the steps of the method described in any one of the first embodiments of the present application.

[0022] Implementing the embodiments of the present invention will have the following beneficial effects:

[0023] The present invention obtains the average winter power generation of the photovoltaic power generation system based on the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total daily horizontal solar radiation and irradiance in winter in the area where the photovoltaic power generation system is located; sets the power generation constraint of the photovoltaic power generation system based on the influence of the electrical load and electrical equipment of the photovoltaic power generation system; obtains the optimal installation plan of the power generation device in the photovoltaic power generation system based on the power generation constraint, the rate of return of the photovoltaic power generation system and the average winter power generation. By analyzing the influence of the electrical load and electrical equipment of the photovoltaic power generation system, setting the power generation constraint of the photovoltaic power generation system, and intelligently determining the optimal power generation device installation plan based on the average winter power generation and power constraint, the winter power generation efficiency and income of the photovoltaic power generation system are effectively improved.

Brief Description of the Drawings

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A flow chart of the steps of a method for optimizing an installation plan of a power generation device;

[0026] Figure 2 A schematic diagram of the structure of the system for optimizing the installation plan of the power generation device;

[0027] Figure 3 It is a diagram of the internal structure of a computer device;

[0028] Among them, 201 is a power generation acquisition module; 202 is a constraint condition acquisition module; 203 is an installation quantity acquisition module. [Specific implementation method]

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] The terms "first", "second", etc. in the specification, claims and drawings of this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not limited to the listed steps or modules, but optionally includes steps or modules that are not listed, or optionally includes other steps or modules that are inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] See also Figure 1 , is a flowchart of the steps of a method for optimizing the installation scheme of a power generation device in the first embodiment of the present application, thereby effectively improving the winter power generation efficiency and benefits of the photovoltaic power generation system, the method comprising:

[0033] Step 101, obtaining the average winter power generation power of the photovoltaic power generation system according to the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total winter daily horizontal solar radiation and irradiance of the region where the photovoltaic power generation system is located;

[0034] Step 102: setting power constraints of the photovoltaic power generation system based on the influence of the power load and power-consuming equipment of the photovoltaic power generation system;

[0035] Step 103: obtaining an optimal installation plan for power generation devices in the photovoltaic power generation system based on the power generation constraint, the rate of return of the photovoltaic power generation system and the average power generation in winter; the optimal installation plan includes an optimal total installed capacity of the power generation device, an optimal installation specification of the power generation device and an optimal number of installed power generation devices.

[0036] Specifically, the photovoltaic device can be a solar panel with a maximum installed capacity of CAP maxin It can be obtained using the following formula: CAP maxin =N maxin CAP unit , among which, CAP unit is the installed capacity of solar panels; N maxin is the maximum number of installations, where the maximum number of installations can be obtained using the following formula: Among them, AREA inAREA is the installation area. unit Represents the area of ​​the solar panel. The output power of the photovoltaic power generation system is greatly affected by environmental factors such as light intensity and temperature, so its output voltage and current will fluctuate. This fluctuation may cause instability in the grid voltage, which in turn affects the normal operation of power equipment. By setting the power generation constraint conditions, the maximum output power of the photovoltaic power generation system can be limited to avoid excessive fluctuations due to changes in environmental factors, thereby ensuring the stable operation of the power system.

[0037] The method in this embodiment obtains the average winter power generation of the photovoltaic power generation system based on the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total daily horizontal solar radiation and irradiance in winter in the area where the photovoltaic power generation system is located; the power generation constraint of the photovoltaic power generation system is set based on the influence of the electrical load and electrical equipment of the photovoltaic power generation system; the optimal installation plan of the power generation device in the photovoltaic power generation system is obtained based on the power generation constraint, the rate of return of the photovoltaic power generation system and the average winter power generation. By analyzing the influence of the electrical load and electrical equipment of the photovoltaic power generation system, the power generation constraint of the photovoltaic power generation system is set, and based on the average winter power generation and power constraint, the optimal power generation device installation plan is intelligently determined, thereby effectively improving the winter power generation efficiency and benefits of the photovoltaic power generation system.

[0038] In a specific embodiment, the average power generation in winter is obtained using the following formula:

[0039]

[0040] Among them, P pvavggen is the average power generation in winter, H daywinter is the total solar radiation on the horizontal surface in winter in the area where the photovoltaic power generation system is located, CAP maxin is the maximum installed capacity of the power generation device, H s is the irradiance under standard conditions, K is the comprehensive efficiency coefficient, k 1 is a constant.

[0041] In a specific embodiment, the constant k 1 The setting can be set according to the actual situation. For example, it can be set according to the time that the area can receive solar radiation in winter, usually 8 hours. Then the constant k 18. The total solar radiation on the horizontal surface in winter is usually provided by the meteorological department or professional research institutions, and can be obtained by querying relevant databases or research reports. It reflects the total energy of solar radiation on the horizontal surface in winter. The maximum installed capacity of the power generation device is the rated power of the photovoltaic power generation system, which indicates the maximum power that the system can generate under the most ideal conditions. This data is usually provided by the manufacturer or installer of the photovoltaic system. Irradiance refers to the solar radiation power received per unit area, usually expressed in watts per square meter (W / m 2 ) is also provided by meteorological departments or research institutions. The comprehensive efficiency coefficient takes into account the conversion efficiency of photovoltaic panels, system losses (such as line losses, inverter losses, etc.) and the impact of environmental factors (such as temperature, shadows, etc.) on power generation efficiency. This coefficient usually needs to be calculated or estimated based on actual conditions.

[0042] In a specific embodiment, the power generation constraint conditions of the photovoltaic power generation system are set based on the influence of the electrical load and electrical equipment of the photovoltaic power generation system, including: setting the power generation constraint conditions of the photovoltaic power generation system according to the electrical load of the photovoltaic power generation system at different times, the energy storage charging power at different times, the electrical power consumption of different equipment and the photovoltaic absorption ratio of the photovoltaic power generation system.

[0043] By real-time monitoring of the electrical load, the output power of the photovoltaic power generation system can be dynamically adjusted to match the power demand, avoiding over-generation or under-generation, thereby improving energy efficiency. According to the energy storage charging power at different times, the output power of the photovoltaic power generation system can be reasonably arranged to ensure the charging efficiency and safety of the energy storage equipment, while reducing unnecessary energy waste. Considering the power consumption of different equipment can ensure that the photovoltaic power generation system provides a stable power supply for key equipment, while avoiding interference with other equipment and improving the overall utilization of the system. By setting power generation constraints, the output power fluctuation range of the photovoltaic power generation system can be limited to make it more stable and reduce the impact and influence on the power grid. In the power system, the access of the photovoltaic power generation system may bring certain disturbances. By setting reasonable power generation constraints, the anti-disturbance ability of the photovoltaic power generation system can be improved to ensure that it can operate stably under various working conditions.

[0044] In a specific embodiment, the power generation constraint condition is obtained using the following formula:

[0045]

[0046] Among them, P pvavggen is the average power generation in winter, is the electrical load of the photovoltaic power generation system at time t, is the energy storage charging power of the photovoltaic power generation system at time t, and is the power consumption of different power-consuming devices in the photovoltaic power generation system at time t, r con is the photovoltaic consumption ratio.

[0047] In a specific embodiment, the rate of return is obtained by the following method: the annual power generation of the photovoltaic power generation system is obtained according to the actual installed capacity of the power generation device and the annual attenuation rate of the components of the power generation device; the annual power consumption of the photovoltaic power generation system is obtained according to the annual power generation and the failure rate and operating power consumption rate of the power generation device; the rate of return of the photovoltaic power generation system is obtained according to the annual power consumption and operating data of the photovoltaic power generation system in different photovoltaic operation periods; the operating data includes comprehensive electricity price, grid-connected power, grid-connected electricity price, partner share, first-year construction cost, technical transformation cost, operating cost, depreciation cost, value-added tax and income tax.

[0048] Specifically, the annual power consumption is the amount of electricity that the photovoltaic power generation system can actually provide to the power grid or users. It takes into account the failure rate of the power generation device and the operating power consumption rate, so it can more accurately reflect the actual power generation capacity of the photovoltaic power generation system. Through the calculation and analysis of the annual power consumption, problems in the design or operation of the photovoltaic power generation system can be found, such as improper selection of power generation devices and unreasonable layout, so as to guide the optimization of system design. By calculating the annual power consumption, we can understand the impact of the failure rate of the power generation device on the power generation of the system, so as to take measures to reduce the failure rate and improve the reliability and stability of the photovoltaic power generation system. The operating power consumption rate is one of the important factors affecting the annual power consumption of the photovoltaic power generation system. Through calculation and analysis, energy consumption problems in the operation process can be found, such as low inverter efficiency and large line loss, so as to take measures to reduce operating power consumption and improve the overall efficiency of the system.

[0049] In a specific embodiment, the capital outflow during the construction period of the photovoltaic power generation system is C buid The calculation formula is:

[0050]

[0051] Among them, C init is the initial investment, C ex is the project development fee, N build The number of months for construction.

[0052] Specifically, the initial investment and project development costs include equipment purchase costs, land or site costs, grid access costs, construction and installation engineering costs, and other costs. Equipment purchase costs can include the purchase costs of photovoltaic modules, inverters, photovoltaic brackets, cables, etc. Photovoltaic modules are the core components of photovoltaic power generation systems and are responsible for converting light energy into electrical energy. Their costs account for a large proportion of the entire initial investment cost. The function of the inverter is to convert the direct current generated by the photovoltaic module into alternating current for use by homes or businesses. Photovoltaic brackets are used to support and fix photovoltaic modules to ensure that they are stable and can fully receive sunlight. Cables are used to connect photovoltaic modules, inverters, and the grid to transmit electrical energy. Ground-based centralized photovoltaic power stations require a certain area of ​​land, so land costs are an important expense in the initial investment. This includes land rent, land leveling costs, etc. For rooftop distributed photovoltaic systems, the rental cost or reinforcement cost of the roof needs to be considered. The photovoltaic power generation system needs to be connected to the grid so that the generated electricity can be transmitted to the grid or users. Grid access costs include grid access design fees, construction costs, equipment purchase costs, etc. The construction and installation project costs include the installation, commissioning, and acceptance of the photovoltaic power generation system. Specifically, it may include the costs of power plant engineering, substation engineering, housing engineering, and transportation engineering. Other costs include:

[0053] 1. Primary equipment and secondary equipment: Primary equipment includes box transformers, main transformers, switch cabinets and other equipment, and secondary equipment includes monitoring, communication and other equipment. The purchase and installation costs of these equipment are also part of the initial investment.

[0054] 2. Management expenses: including costs for preliminary management, survey, design, and bidding.

[0055] 3. Transportation cost: the cost of transporting photovoltaic modules, inverters and other equipment from the production site to the installation site.

[0056] In a specific embodiment, the annual power generation is obtained using the following formula:

[0057]

[0058] in, is the annual power generation in the i-th year, H year is the annual total horizontal solar radiation, CAP in is the actual installed capacity of the power generation device, H s is the irradiance under standard conditions, K is the comprehensive efficiency coefficient, r fde is the first-year attenuation rate of the component, r de is the annual attenuation rate of the component starting from the next year, r fde and r de The annual decay rate of the components is is the annual power generation in the first year.

[0059] In a specific embodiment, the annual power consumption is obtained by using the following formula:

[0060]

[0061] in, is the power consumption in the i-th year, is the annual power generation in year i, r fault is the failure rate, r ele is the operating power consumption rate, r con is the photovoltaic consumption ratio.

[0062]

[0063] Among them, L i is the operating income of the photovoltaic power generation system in the i-th year, is the power consumption in the i-th year, C comele is the comprehensive electricity price, is the grid-connected power in the i-th year, C grid For the on-grid electricity price, Share for partners, C fbuid The first year construction cost. is the technical transformation cost in the i-th year, For operating costs, is the depreciation cost, For VAT, For income tax.

[0064] The rate of return of photovoltaic power generation system profit Use the following formula to obtain:

[0065] r profit =LRR(C build ,L 1 ,…,L Y )

[0066] Among them, Y is the operation period of the photovoltaic power generation system.

[0067] In a specific embodiment, the optimal installation scheme of the power generation device of the wind power generation system can be intelligently determined according to the yield of the wind power generation system, specifically:

[0068] The capital outflow during the construction period of the wind power generation system is:

[0069]

[0070] Among them, C init is the initial investment, C ex is the project development fee, N buildThe number of months for construction.

[0071] Annual net cash flow of wind power generation system (power generation at any time) Annual power generation and annual power consumption )for:

[0072]

[0073] Among them, P wind is the rated power of the fan, V s is the fan start-up wind speed, V e is the fan cut-out wind speed, V r is the rated wind speed of the fan, V t is the wind speed at time t, r fde is the first year decay rate, r de is the annual decay rate starting from the next year, r fault is the failure rate, r ele is the operating power consumption rate, r con is the wind power consumption ratio.

[0074]

[0075] in, is the power consumption in the i-th year, C comele is the comprehensive electricity price, is the grid-connected power in the i-th year, C grid For the on-grid electricity price, Share for partners, C fbuid is the first year construction cost. When i=1, C fbuid =C init -C buid , otherwise C fbuid is 0. is the technical transformation cost in the i-th year, For operating costs, is the depreciation cost, For VAT, For income tax.

[0076] The internal rate of return is: profit =LRR(C build ,L 1 ,…,L Y ), where Y is the wind power operation period.

[0077] In the specific embodiments, see Figure 2, is a structural schematic diagram of an installation scheme optimization system for a power generation device in the second embodiment of the present application, the system comprising: a power generation acquisition module 201, a constraint condition acquisition module 202 and an installation quantity acquisition module 203; the power generation acquisition module 201 is used to obtain the average power generation power of the photovoltaic power generation system in winter according to the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total daily horizontal solar radiation and irradiance in winter in the area where the photovoltaic power generation system is located; the constraint condition acquisition module 202 is used to set the power generation constraint of the photovoltaic power generation system based on the influence of the electric load and power-consuming equipment of the photovoltaic power generation system; the installation quantity acquisition module 203 is used to obtain the optimal installation scheme of the power generation device in the photovoltaic power generation system based on the power generation constraint, the rate of return of the photovoltaic power generation system and the average power generation power in winter; the optimal installation scheme includes the optimal total installed capacity of the power generation device, the optimal installation specification of the power generation device and the optimal number of power generation devices installed.

[0078] The system in this embodiment obtains the average winter power generation of the photovoltaic power generation system based on the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total daily horizontal solar radiation and irradiance in winter in the area where the photovoltaic power generation system is located; sets the power generation constraint of the photovoltaic power generation system based on the influence of the electrical load and electrical equipment of the photovoltaic power generation system; obtains the optimal installation plan of the power generation device in the photovoltaic power generation system based on the power generation constraint, the rate of return of the photovoltaic power generation system and the average winter power generation. By analyzing the influence of the electrical load and electrical equipment of the photovoltaic power generation system, setting the power generation constraint of the photovoltaic power generation system, and intelligently determining the optimal power generation device installation plan based on the average winter power generation and power constraint, the winter power generation efficiency and income of the photovoltaic power generation system are effectively improved.

[0079] In a specific embodiment, the third embodiment of the present application provides an installation scheme optimization device for a power generation device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method described in any one of the first embodiments of the present application. The device in this embodiment obtains the average winter power generation power of the photovoltaic power generation system according to the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total solar radiation and irradiance of the horizontal plane in winter in the area where the photovoltaic power generation system is located; based on the influence of the electrical load and electrical equipment of the photovoltaic power generation system, the power generation constraint of the photovoltaic power generation system is set; based on the power generation constraint, the rate of return of the photovoltaic power generation system and the average power generation in winter, the optimal installation scheme of the power generation device in the photovoltaic power generation system is obtained. By analyzing the influence of the electrical load and electrical equipment of the photovoltaic power generation system, the power generation constraint of the photovoltaic power generation system is set, and based on the average power generation in winter and the power constraint, the optimal installation scheme of the power generation device is intelligently determined, thereby effectively improving the winter power generation efficiency and benefits of the photovoltaic power generation system.

[0080] In a specific embodiment, the fourth embodiment of the present application is a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the processor executes the steps of the method described in any one of the first embodiments of the present application. The storage medium in this embodiment obtains the average winter power generation of the photovoltaic power generation system based on the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total daily horizontal solar radiation and irradiance in winter in the area where the photovoltaic power generation system is located; based on the influence of the electrical load and electrical equipment of the photovoltaic power generation system, the power generation constraint of the photovoltaic power generation system is set; based on the power generation constraint, the rate of return of the photovoltaic power generation system and the average winter power generation, the optimal installation plan of the power generation device in the photovoltaic power generation system is obtained. By analyzing the influence of the electrical load and electrical equipment of the photovoltaic power generation system, the power generation constraint of the photovoltaic power generation system is set, and based on the average winter power generation and the power constraint, the optimal power generation device installation plan is intelligently determined, thereby effectively improving the winter power generation efficiency and benefits of the photovoltaic power generation system.

[0081] Figure 3 The internal structure of a computer device in one embodiment is shown. The computer device can be a terminal or a server. Figure 3The computer device includes a processor, a memory, etc. connected via a system bus. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program. When the computer program is executed by the processor, the processor can implement the method in this embodiment. The internal memory may also store a computer program. When the computer program is executed by the processor, the processor can implement the method in this embodiment. Those skilled in the art can understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0082] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

[0083] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on 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. A method for optimizing the installation scheme of a power generation device, characterized in that: The method comprises: Obtain the average winter power generation power of the photovoltaic power generation system according to the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total daily horizontal solar radiation and irradiance in winter in the area where the photovoltaic power generation system is located; Setting power generation constraints of the photovoltaic power generation system based on the influence of the power load and power-consuming equipment of the photovoltaic power generation system; The optimal installation plan of the power generation device in the photovoltaic power generation system is obtained based on the power generation power constraint condition, the rate of return of the photovoltaic power generation system and the average power generation power in winter; the optimal installation plan includes the optimal total installed capacity of the power generation device, the optimal installation specification of the power generation device and the optimal number of installed power generation devices.

2. The installation scheme optimization method of the power generation device according to claim 1, characterized in that: The average winter power generation is obtained using the following formula: Among them, P pvavggen is the average power generation in winter, H daywinter is the total solar radiation on the horizontal surface in winter in the area where the photovoltaic power generation system is located, CAP maxin is the maximum installed capacity of the power generation device, H s is the irradiance under standard conditions, K is the comprehensive efficiency coefficient, and k1 is a constant.

3. The installation scheme optimization method of the power generation device according to claim 1, characterized in that: The setting of power generation constraint conditions of the photovoltaic power generation system based on the influence of the power load and power-consuming equipment of the photovoltaic power generation system includes: The power generation constraint conditions of the photovoltaic power generation system are set according to the power load of the photovoltaic power generation system at different times, the energy storage charging power at different times, the power consumption of different equipment and the photovoltaic absorption ratio of the photovoltaic power generation system.

4. The installation scheme optimization method of the power generation device according to claim 3, characterized in that: The power generation constraint condition is obtained by the following formula: Among them, P pvavggen is the average power generation in winter, is the electrical load of the photovoltaic power generation system at time t, is the energy storage charging power of the photovoltaic power generation system at time t, and is the power consumption of different power-consuming devices in the photovoltaic power generation system at time t, r con is the photovoltaic consumption ratio.

5. The installation scheme optimization method of the power generation device according to claim 1, characterized in that: The rate of return is obtained by the following method: Obtaining the annual power generation of the photovoltaic power generation system according to the actual installed capacity of the power generation device and the annual attenuation rate of the components of the power generation device; Obtaining the annual power consumption of the photovoltaic power generation system according to the annual power generation and the failure rate and operating power consumption rate of the power generation device; The rate of return of the photovoltaic power generation system is obtained according to the annual power consumption and operating data of the photovoltaic power generation system in different photovoltaic operation periods; the operating data include comprehensive electricity price, grid-connected power, grid-connected electricity price, partner share, first-year construction cost, technical transformation cost, operating cost, depreciation cost, value-added tax and income tax.

6. The installation scheme optimization method of the power generation device according to claim 5, characterized in that: The annual power generation is obtained using the following formula: in, is the annual power generation in the i-th year, H year is the annual total horizontal solar radiation, CAP in is the actual installed capacity of the power generation device, H s is the irradiance under standard conditions, K is the comprehensive efficiency coefficient, r fde is the first-year attenuation rate of the component, r de is the annual attenuation rate of the component starting from the next year, r fde and r de The annual decay rate of the components is is the annual power generation in the first year.

7. The installation scheme optimization method of the power generation device according to claim 5, characterized in that: The annual power consumption is obtained by the following formula: in, is the power consumption in the i-th year, is the annual power generation in year i, r fault is the failure rate, r ele is the operating power consumption rate, r con is the photovoltaic consumption ratio.

8. A system for optimizing the installation scheme of a power generation device, characterized in that: The system comprises: a power generation acquisition module, a constraint condition acquisition module and an installation quantity acquisition module; The power generation acquisition module is used to obtain the average power generation power of the photovoltaic power generation system in winter according to the maximum installed capacity of the power generation device in the photovoltaic power generation system, the total solar radiation and irradiance of the horizontal plane in winter in the area where the photovoltaic power generation system is located; The constraint condition acquisition module is used to set the power generation constraint condition of the photovoltaic power generation system based on the influence of the power load and power-consuming equipment of the photovoltaic power generation system; The installation quantity acquisition module is used to obtain the optimal installation plan of the power generation device in the photovoltaic power generation system based on the power generation power constraint condition, the rate of return of the photovoltaic power generation system and the average power generation power in winter; the optimal installation plan includes the optimal total installed capacity of the power generation device, the optimal installation specification of the power generation device and the optimal installation quantity of the power generation device.

9. A device for optimizing the installation scheme of a power generation device, comprising a memory and a processor, characterized in that: The memory stores a computer program, and when the computer program is executed by the processor, the processor is caused to perform the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the processor is caused to perform the steps of the method according to any one of claims 1 to 7.

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