In recent years, it is understood that the intelligent photovoltaic junction box can improve the power generation efficiency of the system by 47.5%. What are the three functions of the intelligent photovoltaic junction box? In addition to MPPT function and intelligent shutdown function under abnormal conditions such as fire, what other functions does it have? Now come with us to understand.
1. MPPT function
The maximum power tracking technology and control devices are configured for each solar panel through the cooperation of software and hardware.
This technology can maximize the reduction of power generation efficiency of the power station caused by different solar panel characteristics in the solar panel array, reduce the impact of the “barrel effect” on power station efficiency, and greatly improve the power generation efficiency of the power station.
From the test results, It can even improve the power generation efficiency of the system by 47.5%, increase the investment income and greatly shorten the investment payback period.
2. Intelligent shutdown function under abnormal conditions such as fire
In case of fire, the software algorithm built in the junction box and the hardware circuit can judge whether there is any abnormality within 10 milliseconds, actively cut off the connection between each solar panel, reduce the voltage of 1000V to the voltage acceptable to the human body of about 40V, and ensure the safety of firefighters.
3. Instead of the traditional Schottky diode
In case of shadow occlusion, the MOSFET bypass current can be started instantly to protect the safety of the solar panel. At the same time, due to the unique low VF characteristics of the MOSFET, the heating capacity in the overall junction box is only one-tenth of that of the ordinary junction box.
This technology greatly prolongs the service life of the junction box and better ensures the service life of the solar panel.
How can the photovoltaic intelligent junction box really meet the pain and difficulty of the photovoltaic market? It is necessary to find the best balance in terms of the electrical function of the junction box, the service life of electronic devices, the cost and investment income of the intelligent junction box.
It is believed that in the next few years, the intelligent photovoltaic junction box will have more applications in the photovoltaic system and create more value for investors.
