分布式光伏發(fā)電系統(tǒng)是由光伏組件、光伏組件支撐系統(tǒng)、電纜及電纜通道、直流匯流箱（選用）、逆變器、直交流配電柜、升壓變壓器、升壓開(kāi)關(guān)站、并網(wǎng)設(shè)備及監(jiān)控系統(tǒng)等組成。下面來(lái)簡(jiǎn)單講解下相關(guān)的內(nèi)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.光伏組件：

1. PV modules:

光伏組件主要分為晶體硅太陽(yáng)能電池、非晶體硅太陽(yáng)能電池；晶體硅組件主要包括單晶硅和多晶硅電池，晶體硅光伏組件是目前成熟、穩(wěn)定、可靠、應(yīng)用廣的光伏電池非晶體硅組件主要為薄膜光伏組件，薄膜光伏組件包括硅薄膜光伏組件（非晶硅、微晶硅、納米晶硅等）、多元化合物薄膜光伏組件（硫化鎘、硒銦銅、碲化鎘、砷化鎵、磷化銦、銅銦鎵硒等）、染料敏化薄膜光伏組件、有機(jī)薄膜光伏組件。

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.光伏組件支撐系統(tǒng)

2. PV module support system

光伏組件支架系統(tǒng)，顧名思義，是光伏組件的支撐結(jié)構(gòu)，其主要的作用是固定光伏組件。光伏組件支撐系統(tǒng)應(yīng)滿足結(jié)構(gòu)受力要求，包括抗震、防風(fēng)、防雪等設(shè)計(jì)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.電纜及電纜通道

3. Cable and cable channel

光伏發(fā)電系統(tǒng)電纜主要包括光伏專用電纜（用于組件間組串）、直流電纜（組件-匯流箱-直流配電柜-逆變器）、交流電纜（逆變器-變壓器）。因光伏組件安裝通常都安裝在室外，光伏專用電纜長(zhǎng)期處于高溫、高電壓、寒冷、風(fēng)化、紫外線等環(huán)境下，因此其要求非常嚴(yán)格，光伏系統(tǒng)使用的電纜應(yīng)通過(guò)TUV等測(cè)試和評(píng)估，滿足相關(guān)技術(shù)規(guī)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.逆變器

4. Inverter

主要用于把直流電能轉(zhuǎn)換成交流電能，得到標(biāo)準(zhǔn)的交流電壓和頻率。

It is mainly used to convert DC electric energy into AC electric energy to obtain standard AC voltage and frequency.

5.直流匯流箱

5. DC combiner box

匯流箱是在光伏發(fā)電系統(tǒng)中，保證光伏組串有序連接和匯流功能的成套裝置，一般配備浪涌保護(hù)器、漏電保護(hù)器、隔離開(kāi)關(guān)、熔斷器等，提供隔離、漏電和接地保護(hù)，確保光伏系統(tǒng)在維護(hù)、檢查時(shí)易于切斷電路，當(dāng)光伏系統(tǒng)發(fā)生故障時(shí)減小停電的范圍，提高光伏系統(tǒng)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.

分布式光伏系統(tǒng)的主要設(shè)備及作用的部分內(nèi)容就講解到這里了，您對(duì)此有什么相關(guān)事項(xiàng)就來(lái)我們網(wǎng)站http://www.51dwgw.cn進(jìn)行咨詢吧！

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 http://www.51dwgw.cn Consult!