With the popularity of household photovoltaic systems, the power of single photovoltaic modules has gradually increased. For household photovoltaic power plants, the capacity of modules that can be installed in the same area is more. The increase in system size brings about an increase in inverter power. For some roofs with a large area, the installed capacity of modules has exceeded the conventional 5 / 6kW by as much as 7kW or more than 8kW. Taking 8kW photovoltaic power station as an example, according to the traditional design, the inverter generally uses 3kW + 5kW or 4kW + 4kW two single-phase inverters in parallel.
In the application of the above scheme, since it is a parallel connection of two inverters, two input and one output confluence units need to be added on the AC output side, and then connected to the grid through the grid cabinet. This kind of scheme not only increases the bus unit, but also brings the installation cost and risk of bus unit failure. At the same time, in terms of system equipment purchase cost, the purchase cost of models with higher power density is lower. From an investment perspective, it will undoubtedly increase the cost recovery cycle, resulting in a certain waste of resources.
Combined with the above application background, Jingfuyuan launched a new generation of single-phase SUNSEED series 7 / 8kW models. It perfectly solves the application pain point of 7kW and 8kW photovoltaic systems that need to use two single-phase inverters in parallel, and also upgrades the existing SUNSEED products on the basis of traditional inverters.
SUNSEED 7000 / 8000TL adopts 2-way MPPT design, with MPPT efficiency up to 99.9%. It can avoid the component mismatch loss caused by the difference in orientation or angle of two different components of the household photovoltaic power station.
DC input is 1.3 times overmatched, AC output is 1.1 times overloaded. 7000TL can be connected to 9100W components at most, and 8000TL can be connected to 10400W components at most. The DC voltage range is wide, the inverter starts early and shuts down late, generating time is long, and the profit is higher.
Support double glass components, string input maximum current 12.5A. It breaks through the situation where the inverter's conventional single-channel input current is below 10A, and can be used with the latest double glass components, with higher system compatibility.
The key components adopt international well-known brands such as Infineon, NCC, VAC, TI, etc. With 15 years of experience in the power electronics industry and strict quality control, high-quality components create stable and efficient products.
IP65 protection grade, high power density, natural heat dissipation design. Meet the outdoor wall-mounted installation requirements, one person can easily complete the installation, simple operation and automatic operation.
Flexible and diverse communication, standard RS232 interface, optional WIFI / GPRS monitoring mode. Users can view the current operation information and historical records of their own power station at any time and any place through the mobile phone APP or computer terminal, which makes the management of the power station easier.
Optional integrated anti-backflow function (SUNSEED series 3-6kW), output control adjustment range 0-100%. For factors such as unstable grid or insufficient transformer capacity, the grid is prohibited from feeding. Optional anti-current CT can be provided. The inverter can adjust the output power to meet the user's local power demand while not sending power to the grid without adding an external Anti-backflow controller.
The new generation of SUNSEED series 7 / 8kW single-phase grid-connected inverters are tailor-made for household photovoltaic systems with more practical photovoltaic inverter products. Their powerful throughput is compatible with most photovoltaic modules on the market. Simplify the configuration of household photovoltaic systems, saving the cost of AC bus unit. The equipment saves money and is more worry-free to use.
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