The era of high-current solar modules calls for inverters to support up to 20A and have automatic breaking capabilities Jul 02, 2020
Since 2019, high-power modules based on large-size silicon have become the mainstream trend in the photovoltaic industry. Various module manufacturers have introduced large silicon modules with typical sizes of 182mm and 210mm into the market. The increase in the size of silicon directly leads to module currents. When the size of the silicon chip increases to 210mm, the component current rapidly increases from 10A to about 18A.
The substantial increase in component current has caused great trouble to the downstream of the industrial chain. The most prominent one is the selection of inverters. If the component current increases so much, if the inverter string current cannot match it, it will inevitably result in a large-area DC limit for the power station, which will seriously affect the power station's revenue. Therefore, if a small-current inverter is used to force a large-current component to match, it will inevitably cause a large amount of power generation loss for the owner.
In the era of high current, the selection of inverters must be cautious. The "matching" of inverter current and component current is very important. Each string of inverter current must be supported to a maximum of 20A to avoid serious power restrictions on the power station.At the same time, as the component current and the number of inverter strings increase, the risk of inverter failure and fire will increase. Therefore, the era of high current calls for inverters with automatic string disconnection capabilities to remove safety hazards from the root cause.

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