阅读说明：本技术 光伏组件布局方法和装置 (Photovoltaic module layout method and device ) 是由 陈朋朋 王�忠 陈彬 方俊峰 张俊俊 于 2019-11-18 设计创作，主要内容包括：本发明公开了一种光伏组件布局方法和装置。该光伏组件布局方法包括：确定各光伏支架的光伏组件的线缆连接信息和配置参数信息,并根据线缆连接信息和配置参数信息,生成至少一组组件布局信息,从至少一组组件布局信息中确定度电成本最低的一组组件布局信息为最终组件布局信息。本实施例的技术方案,解决了现有技术仅考虑电缆成本,未考虑其他发电量因素对光伏系统造成严重发电量损失的技术问题,综合考虑了线缆连接方式和组件布局方式对发电成本造成的影响,优化了光伏组件的布局方案,降低了光伏电站的度电成本。(The invention discloses a photovoltaic module layout method and device. The photovoltaic module layout method comprises the following steps: the method comprises the steps of determining cable connection information and configuration parameter information of photovoltaic modules of each photovoltaic support, generating at least one group of module layout information according to the cable connection information and the configuration parameter information, and determining one group of module layout information with the lowest electricity consumption cost from the at least one group of module layout information as final module layout information. The technical scheme of this embodiment has solved prior art and has only considered the cable cost, has not considered other generated energy factors and has caused the technical problem of serious generated energy loss to photovoltaic system, has comprehensively considered the influence that cable connection mode and subassembly layout mode led to the fact the generating cost, has optimized photovoltaic module's layout scheme, has reduced photovoltaic power plant's power consumption cost.)

1. A photovoltaic module layout method is characterized by comprising the following steps:

determining cable connection information and configuration parameter information of photovoltaic modules of each photovoltaic support, and generating at least one group of module layout information according to the cable connection information and the configuration parameter information, wherein the cable connection information comprises the arrangement information of the photovoltaic modules connected into the same group of strings, the configuration parameter information comprises the volume ratio information of the photovoltaic modules, and each group of module layout information comprises height information of the photovoltaic supports, space information of the photovoltaic supports and angle information of the photovoltaic modules;

and determining a group of component layout information with the lowest electricity consumption cost from the at least one group of component layout information as final component layout information.

2. The photovoltaic module layout method according to claim 1, wherein the total row number information of the photovoltaic modules of each photovoltaic support is m, and the capacity matching information of the photovoltaic modules comprises n1, n2, … and nx, wherein n1 is the minimum capacity matching ratio of the photovoltaic modules of each photovoltaic support, and nx is the maximum capacity matching ratio of the photovoltaic modules of each photovoltaic support;

the determining cable connection information and configuration parameter information of the photovoltaic modules of each photovoltaic support, and generating at least one group of module layout information according to the cable connection information and the configuration parameter information includes:

step a), setting the cable connection information as i, and setting the configuration parameter information as n1, wherein i is more than or equal to 1 and less than or equal to m;

step b) generating at least one group of component layout information according to the cable connection information and the configuration parameter information;

step c) updating the configuration parameter information, and generating at least one group of component layout information according to the cable connection information and the updated configuration parameter information, wherein the updated configuration parameter information is n 2;

and c) repeatedly executing the step c) until the updated configuration parameter information is nx.

3. The photovoltaic module layout method according to claim 1, wherein the determining a set of module layout information with the lowest electricity consumption cost as final module layout information from the at least one set of module layout information comprises:

determining the layout information of the components with the lowest and the next lowest electricity consumption cost and the capacity ratio information thereof from the at least one group of the layout information of the components;

dividing a capacity matching interval formed by capacity matching information corresponding to the lowest electricity consumption cost and the next lowest component layout information by setting step length, wherein the capacity matching interval comprises at least three capacity matching information;

determining component layout information corresponding to at least three pieces of capacity ratio information in the capacity ratio interval;

and determining a group of component layout information with the lowest electricity consumption cost from the component layout information corresponding to the at least three capacity ratio information as final component layout information.

4. The photovoltaic module placement method according to claim 1, wherein said determining the electricity cost comprises:

determining the power generation capacity of the photovoltaic module according to the radiation value, the loss value and the installed power of the photovoltaic module;

determining initial investment of a project according to the first-level cable cost and the additional investment cost of the photovoltaic module;

and determining the electricity consumption cost of the photovoltaic module according to the generated energy of the photovoltaic module, the project initial investment, the fixed asset residual value, the discount rate, the service life of the photovoltaic power station, the operation cost, the interest and the depreciation.

5. The photovoltaic module layout method according to claim 4, wherein the loss values of the photovoltaic modules include shadow radiation loss, shadow electrical loss, direct current line loss, weak light loss, temperature loss, and dust loss.

6. The photovoltaic module layout method according to claim 5, wherein the determining the power generation amount of the photovoltaic module according to the radiation value, the loss value and the installed power of the photovoltaic module comprises:

determining the shadow radiation loss according to the angle information of sunlight, the row number information, the angle information, the length information, the spacing information of the photovoltaic support and the radiation value of the photovoltaic assembly;

determining the shadow electrical loss according to the shadow radiation loss, and determining the direct current line loss and the weak light loss;

and determining the power generation capacity of the photovoltaic module according to the radiation value of the photovoltaic module, the shadow radiation loss, the shadow electrical loss, the direct current line loss, the weak light loss, the temperature loss, the dust loss and the installed power.

7. The photovoltaic module placement method according to claim 6, wherein said determining the shadow electrical loss from the shadow radiation loss comprises:

determining the maximum power of the photovoltaic module when the photovoltaic module is shielded and the maximum power of the photovoltaic module when the photovoltaic module is not shielded according to the short-circuit current, the maximum power point current, the open-circuit voltage, the maximum power point voltage, the working current, the temperature of the photovoltaic module, the radiation value and the angle information of the sunlight of the photovoltaic module;

determining the total shadow loss of the photovoltaic component according to the maximum power when the photovoltaic component is shielded and the maximum power when the photovoltaic component is not shielded;

determining the shadow electrical loss from the total shadow loss and the shadow radiation loss of the photovoltaic module.

8. The photovoltaic module layout method of claim 4, wherein the primary cable cost comprises: cable unit price cost, poling unit price cost and construction cost.

9. The photovoltaic module layout method according to claim 4, wherein the electricity cost is calculated as:

wherein LCOE is the electricity cost, I₀Initial investment for said project, V_RThe method comprises the steps of fixing asset residual value, io being discount rate, n being service life of the photovoltaic power station, An being operation cost of the photovoltaic power station in the nth year, Pn being interest of the photovoltaic power station in the nth year, Dn being depreciation of the photovoltaic power station in the nth year, and Qn being generated energy of the photovoltaic power station.

10. A photovoltaic module layout device, comprising:

the device comprises a layout information generation module, a data acquisition module and a data processing module, wherein the layout information generation module is used for determining cable connection information and configuration parameter information of photovoltaic modules of each photovoltaic bracket and generating at least one group of module layout information according to the cable connection information and the configuration parameter information, the cable connection information comprises the arrangement information of the photovoltaic modules connected into the same group of strings, the configuration parameter information comprises the capacity ratio information of the photovoltaic modules, and each group of module layout information comprises height information of the photovoltaic brackets, space information of the photovoltaic brackets and angle information of the photovoltaic modules;

and the layout information determining module is used for determining a group of component layout information with the lowest electricity consumption cost from the at least one group of component layout information as final component layout information.