Inverter Battery On Grid System

To enhance power management and reduce reliance on conventional energy sources, residential and commercial solar power systems often incorporate a combination of an inverter and a battery set. This system converts the solar panels' direct current input into alternating current, which can then be fed back into the grid. By utilizing the inverter and connecting it with the battery, any surplus power can be stored and subsequently released into the grid whenever required. This setup offers users improved control over their power usage and exemplifies their commitment to sustainable energy solutions.

There are currently four main categories of inverter products available in the market - centralized inverters, distributed inverters, string inverters, and microinverters. Large-scale centralized photovoltaic inverters are commonly used in ground power stations and can handle power ranging from 250kW to 10MW. These inverters aggregate the direct current generated by photovoltaic modules into a large DC power before converting it into alternating current. Due to their large power output, centralized inverters above 500KW are typically used.

In recent years, with the advancement of power electronics technology, the power of large-scale centralized photovoltaic inverters has increased significantly. The voltage levels have also risen, from 500KW initially to 630KW, 1.25MW, 2.5MW, and 3.125MW. These inverters boast several advantages, including simple operation and maintenance, mature technology, high power quality, and low cost. They are most suitable for large-scale ground photovoltaic power plants, agricultural photovoltaic complementary power plants, water surface photovoltaic power stations, and more.

To enhance their functionality, some large centralized photovoltaic inverters have started to integrate with downstream transformers, forming an integrated "inverter boost" solution. There are also integrated solutions that combine photovoltaics and energy storage to create a combined photovoltaic and storage solution. On the other hand, distributed inverters are typically used in complex large-scale ground power stations ranging from 1MW to 10MW, while string inverters and microinverters work well for small-scale residential and commercial distributed and ground power stations.

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