SOROTEC UPS

Working temperature. The working temperature of the 1 KVA solar inverter power devices directly affects the output voltage, waveform, frequency, and phase characteristics, and working temperature and environment temperature, altitude, relative humidity and the working state of the 1KVA solar inverter. Working environment. For the high frequency and high voltage home inverter, its working characteristics are related to the working environment and working conditions. At high altitude, the air is thin, prone to circuit discharge, affecting the work. It is easy to condensation in high humidity area, causing a partial short-circuit. Therefore, the 1KVA inverter provides the applicable scope of work. Normal operating conditions for solar home inverters . The ambient temperature -20 to +50 degrees, at an altitude of less than 5500m, the relative humidity is less than 93%, and no condensation. When the working environment and working temperature are beyond the scope of the above, consider ...

Rated output efficiency is defined as the ratio of the output power to the input power under the specified operating conditions, expressed as a percentage. In general, the nominal efficiency of photovoltaic home power inverters are the efficiency of a pure resistive load under the condition of 80% load efficiency. Inverter efficiency will change with the size of the load, when the load rate is lower than 20% and higher than 80%, the efficiency is lower. When standard inverter output power is greater than 75% of the rated power, the efficiency should be greater than or equal to 80%. At present, the nominal efficiency of the main inverter is between 80％ to 95％, and the efficiency is not less than 85% for the small power inverter for home use. In the design of photovoltaic power generation system, not only to choose a high efficiency home power inverters , but also through rational allocation, as far as possible to make the solar inverter system load at the best efficiency point.

With the continuous development of various new technologies,  solar powered inverter  faces a variety of challenges, mainly in the grid performance, protection functions and electromagnetic compatibility, etc.. Grid connected performance is to improve the efficiency of the grid, eliminate the DC component, reduce the current harmonics and so on. Electromagnetic compatibility is to control the voltage fluctuations, reduce electromagnetic radiation, improve the degree of interference and so on. In addition, need to consider that it shold be fast and smooth in the process of switching between the solar inverter and the city power. The above aspects are the main aspects of how to evaluate the  solar powered inverters , if several performance metrics of an inverter is very superior, then will create a very good operating environment to the solar power system, and will also provide indirectly income to power supply company.

The output end of the early  solar energy inverter  system generally installed isolation transformer, to realize voltage adjustment and electrical isolation, to ensure safe and reliable operation of the system. However, isolation transformer of large volume, high cost, high loss, affect the system efficiency. If the use of high-frequency transformer to achieve the electrical isolation of PV and grid, which can reduce the system volume, quality and cost, but will not significantly improve the efficiency of the system. Therefore, non isolated grid connected photovoltaic inverter system has become a hot research topic. It has the advantages of high efficiency, small size, light weight, low cost and so on. But the elimination of transformers build electrical connection between PV and grid, leakage current could be increased substantially, conducting radiated interference, increase the net current harmonics and loss, even to endanger the equipment and personnel. Therefore, the com...