How to solve the safety problem in the construction of photovoltaic power generation on the gas station?

　　The combination of photovoltaic power generation and gas station will surely become a new form of combining traditional energy and new energy. Using the idle canopy or building roof of gas station to construct photovoltaic power station, the photovoltaic power generated can save a considerable amount of gas station Electricity bills reduce carbon emissions and increase social and economic benefits.

　　However, the gas station is a dangerous goods business place, and it is set up in a convenient traffic area with a large flow of traffic and people. Once an explosion is caused by a fire, the consequences will be disastrous. So, is there any safety hazard in the installation of photovoltaic power plants?

　　We have to reiterate the "safety first" principle again.

　　In general photovoltaic power stations, solar modules are arranged in series in an array, and the line voltage of the entire string can generally reach a high voltage of 600V~1000V. In the long-term operation, factors such as poor contact caused by loose joints, quality problems of contacts, long running time, etc., and the aging of insulation devices caused by the problems will directly cause the DC arc phenomenon. The high temperature of 3000℃ can easily cause fire and explosion at gas stations.

　　The secret of safety is to completely eliminate the sparks caused by "DC arcing" and eliminate the fire hazards caused by photovoltaic power plants. At present, micro-inverters are the only solution to eliminate the DC high voltage that exists during the operation of the photovoltaic system.

　　The micro-inverter system is a fully parallel circuit design. There is no voltage superposition between the components, and the DC voltage is not higher than the maximum output DC voltage of the components. This ultra-low voltage design completely solves the risk of fire caused by high-voltage DC arcing.

　　In addition, when a fire is caused by the photovoltaic power station itself or external reasons, the traditional (centralized or string-type) photovoltaic power station itself is a "big battery". As long as there is light, there will be DC high voltage, and the firefighters will not be able to carry out the operation. save. The use of micro-inverters has the advantage of naturally no DC high voltage, so that photovoltaic power plants no longer have "rescue risk" and "electric shock hazard"!

　　The photovoltaic system using micro-inverters, through the monitoring platform, can clearly see the power generation of each module, and understand its voltage, current, power and other information. When the photovoltaic power station fails, it can be accurately located, even without the need for exhaust. Engineers go to the site and directly perform remote diagnosis through the background, quickly troubleshoot and solve problems, and minimize the impact on the normal operation of the gas station due to power station failures and power outages.

　　In North America, Europe and other developed countries, there are higher requirements for the safety of photovoltaics. Therefore, micro-inverters are also favored due to their superior safety and other advantages.

　　Nearly 100 photovoltaic power stations have been built on the roofs of WAWA gas stations in major cities in New Jersey, with a total project capacity of about 10MW, all using photovoltaic power generation + micro-inverters.

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect substitute for lead-acid batteries, and are the first choice for grid-connected peak shaving, off-grid energy storage, photovoltaic energy storage, UPS, data center and other industries.

　　Solar power generation system with lithium battery energy storage system is a very promising clean energy.