分布式光伏发电系统是由光伏组件、光伏组件支撑系统、电缆及电缆通道、直流汇流箱（选用）、逆变器、直交流配电柜、升压变压器、升压开关站、并网设备及监控系统等组成。下面来简单讲解下相关的内容吧。
The distributed photovoltaic system is composed of photovoltaic modules, photovoltaic module support system, cables and cable channels, DC combiner box (optional), inverter, DC/AC distribution cabinet, step-up transformer, step-up switch station, grid connected equipment and monitoring system. Now let's briefly explain the relevant contents.
1.光伏组件：
1. PV modules:
光伏组件主要分为晶体硅太阳能电池、非晶体硅太阳能电池；晶体硅组件主要包括单晶硅和多晶硅电池，晶体硅光伏组件是目前成熟、稳定、可靠、应用广的光伏电池非晶体硅组件主要为薄膜光伏组件，薄膜光伏组件包括硅薄膜光伏组件（非晶硅、微晶硅、纳米晶硅等）、多元化合物薄膜光伏组件（硫化镉、硒铟铜、碲化镉、砷化镓、磷化铟、铜铟镓硒等）、染料敏化薄膜光伏组件、有机薄膜光伏组件。
PV modules are mainly divided into crystalline silicon solar cells and amorphous silicon solar cells; Crystalline silicon modules mainly include monocrystalline silicon and polycrystalline silicon cells. Crystalline silicon photovoltaic modules are mature, stable, reliable and widely used photovoltaic cells. Amorphous silicon modules are mainly thin film photovoltaic modules. Thin film photovoltaic modules include silicon thin film photovoltaic modules (amorphous silicon, microcrystalline silicon, nanocrystalline silicon, etc.), multi-component compound thin film photovoltaic modules (cadmium sulfide, indium selenide copper, cadmium telluride, gallium arsenide, indium phosphide, copper indium gallium selenide, etc.) Dye sensitized thin film photovoltaic modules, organic thin film photovoltaic modules.
2.光伏组件支撑系统
2. PV module support system
光伏组件支架系统，顾名思义，是光伏组件的支撑结构，其主要的作用是固定光伏组件。光伏组件支撑系统应满足结构受力要求，包括抗震、防风、防雪等设计要求。
PV module support system, as its name implies, is the supporting structure of PV modules, and its main function is to fix PV modules. The PV module support system shall meet the structural stress requirements, including seismic, wind, snow and other design requirements.
3.电缆及电缆通道
3. Cable and cable channel
光伏发电系统电缆主要包括光伏专用电缆（用于组件间组串）、直流电缆（组件-汇流箱-直流配电柜-逆变器）、交流电缆（逆变器-变压器）。因光伏组件安装通常都安装在室外，光伏专用电缆长期处于高温、高电压、寒冷、风化、紫外线等环境下，因此其要求非常严格，光伏系统使用的电缆应通过TUV等测试和评估，满足相关技术规范。
The cables of photovoltaic power generation system mainly include photovoltaic special cables (used for stringing between modules), DC cables (modules - combiner box - DC distribution cabinet - inverter), and AC cables (inverter transformer). Since PV modules are usually installed outdoors, and the special cables for PV are under high temperature, high voltage, cold, weathering, ultraviolet and other environments for a long time, the requirements are very strict. The cables used in the PV system should pass TUV and other tests and assessments to meet the relevant technical specifications.
4.逆变器
4. Inverter
主要用于把直流电能转换成交流电能，得到标准的交流电压和频率。
It is mainly used to convert DC electric energy into AC electric energy to obtain standard AC voltage and frequency.
5.直流汇流箱
5. DC combiner box
汇流箱是在光伏发电系统中，保证光伏组串有序连接和汇流功能的成套装置，一般配备浪涌保护器、漏电保护器、隔离开关、熔断器等，提供隔离、漏电和接地保护，确保光伏系统在维护、检查时易于切断电路，当光伏系统发生故障时减小停电的范围，提高光伏系统性能。
The combiner box is a complete set of devices in the photovoltaic power generation system to ensure the orderly connection of photovoltaic strings and the function of confluence. It is generally equipped with surge protector, leakage protector, disconnector, fuse, etc., to provide isolation, leakage and grounding protection, so as to ensure that the photovoltaic system is easy to cut off the circuit during maintenance and inspection. When the photovoltaic system fails, reduce the scope of power failure and improve the performance of the photovoltaic system.
The main equipment and functions of the distributed photovoltaic system will be explained here. If you have any related matters, please come to our website //tianjibiotech.com Consult!
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