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              光伏逆變器保養要注意什么?

              來源:http://www.cekidots.com/ 日期:2021-12-06 發布人:admin

              光伏發電是利用半導體界面的光生伏特效應而將光能直接轉變為電能的一種高科技技術。這種技術的關鍵元件就是太陽能電池。太陽能電池經過串聯后進行封裝保護可形成大面積的太陽電池組件,再配合上逆變器等部件就形成了光伏發電裝置。光伏發電的優點是較少受地域限制,因為陽光普照大地;光伏系統還具有安全可靠無噪聲低污染無需消耗燃料和架設輸電線路即可就地發電供電及建設周期短的優點。

              Photovoltaic power generation is a high-tech technology that directly converts light energy into electric energy by using the photovoltaic effect at the semiconductor interface. The key component of this technology is solar cells. After the solar cells are sealed and protected in series, a large area of solar cell modules can be formed, and then combined with inverters and other components to form a photovoltaic power generation device. The advantage of photovoltaic power generation is less limited by region, because the sun shines on the earth; The photovoltaic system also has the advantages of safety, reliability, no noise, low pollution, local power generation and power supply without fuel consumption and transmission line erection, and short construction period.
              光伏逆變器作為一項電子產品,由眾多元器件組成。逆變器又稱電源調整器,根據逆變器在光伏發電系統中的用途可以歸納為獨立型電源用和并網用二種。根據波形調制方式又可以細分為方波逆變器階梯波逆變器正弦波逆變器和組合式三相逆變器。對于用于并網系統的逆變器,根據有無變壓器又可再細分為變壓器型逆變器和無變變壓器型逆變器。當并網發電的時候還要和電網相連,這里就要注意了,因為它的特殊性,在安裝維修的時候萬萬不能粗心大意,否則的話可能出現這樣那樣的隱患,甚至危及人身安全。那么我們該如何去注意呢? 首先我們得從維修方面講起。
              As an electronic product, photovoltaic inverter is composed of multiple devices. Inverter, also known as power regulator, can be divided into independent power supply and grid connection according to the use of inverter in photovoltaic power generation system. According to the waveform modulation mode, it can be subdivided into square wave inverter, step wave inverter, sine wave inverter and combined three-phase inverter. The inverter used in grid connected system can be subdivided into transformer inverter and transformer free inverter according to the presence or absence of transformer. When the grid connected power generation is connected to the power grid, we should pay attention to it. Because of its particularity, we must not be careless in installation and maintenance, otherwise there may be hidden dangers and even endanger personal safety. So how do we pay attention? First of all, we have to start with maintenance.
              光伏發電系統安裝并網后,難免不出現問題,出現問題后就要及時進行檢查維修,光伏逆變器保養應注意些什么
              After the photovoltaic power generation system is installed and connected to the grid, it is inevitable that there will be no problems. In case of problems, it should be inspected and repaired in time. What should be paid attention to in the maintenance of photovoltaic inverter
              ABB中間繼電器價格
              維修時需注意一下幾點:
              Pay attention to the following points during maintenance:
              在進行任何維修工作前,首先要斷開逆變器與電網的電氣連接,然后斷開直流側電氣連接。
              Before any maintenance work, first disconnect the electrical connection between the inverter and the power grid, and then disconnect the electrical connection at the DC side.
              等待至少5分鐘直到內部元件放電完畢方可進行維修工作。
              Wait for at least 5 minutes until the internal components are discharged before maintenance.
              任何影響逆變器安全性能的故障必須立即排除才可以再次開啟逆變器。
              Any fault affecting the safety performance of the inverter must be eliminated immediately before the inverter can be started again.
              避免不必要的電路板接觸
              Avoid unnecessary board contact
              遵守靜電防護規范,佩戴防靜電手環。
              Observe the electrostatic protection specifications and wear anti-static bracelets.
              注意并遵守產品上的警告標識。
              Pay attention to and observe the warning signs on the product.
              操作前初步目視檢查設備有無損壞或其它危險狀態。
              Conduct a preliminary visual inspection of the equipment for damage or other dangerous conditions before operation.
              注意逆變器熱表面。比如功率半導體的散熱器等,在逆變器斷電后一段時間內,仍保持較高溫度,這時要防止燙傷。
              Pay attention to the hot surface of the inverter. For example, the radiator of power semiconductor still maintains a high temperature for a period of time after the inverter is powered off. At this time, scald shall be prevented.
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