自动化外文文献翻译--光伏逆变器的发展及优势(编辑修改稿)

自动化外文文献翻译--光伏逆变器的发展及优势(编辑修改稿)内容摘要：

l module, as long as the output of the solar cell module the output power of the inverter is greater than the output power, inverter is continuous running。 Until sunset stop, even if the day of overcast and rainy inverter can also run. When solar cell module output diminish, inverter output close to zero, inverter and standby state formation. 2 the most high power tracking control function The output of the solar cell module with solar radiation intensity and solar cell module itself temperature (chip temperature) and change. Plus, because of solar cell module has the voltage with current increase and the characteristics of the decline, and therefore there are can get the most high power best working point. Solar radiation intensity is changing, obviously the best working point is also changing. Relative to these changes, always let solar cell module of the working point in the maximum power point, the system always from the solar cell module for maximum power output, this control is the most high power tracking control. Solar power system with inverter is the biggest characteristic of including the maximum power point tracking (MPPT) this function. Working environment and requirements: 1. Photovoltaic inverter requirements with high efficiency. The 2020 solar cell price is on the high side, in order to make the best use of solar cell, and enhanced the system efficiency, must try to improve the efficiency of the inverter. 2. Photovoltaic inverter are required to have high reliability. 2020 pv power generation system is mainly used in remote areas, many power station unattended and maintenance, which requires the inverter instruments have reasonable circuit structure, 湖北理工学院 毕业设计（论文 ） 外文文献翻译 8 strict ponents selection, and requirements for inverter instruments of various protection functions, such as input dc polarity meet anti protection, ac output short circuit protection, heat, overload protection, etc. 3. Photovoltaic inverter for dc input voltage has a wide application range, because the sun battery terminal voltage with load and sunshine intensity and change, battery although to solar cell voltage plays an important role, but due to the battery voltage with battery residual capacity and the change of resistance and fluctuation, especially when battery voltage across the age range change is very big, such as 12 v battery, the terminal voltage can be in 10 v ~ 16 v changes between, which requires the inverter must be in large dc input voltage range ensure normal work, and ensure the stability of the ac output voltage. 4. Photovoltaic inverter in medium and large capacity of photovoltaic power generation system, the out。