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Don 't support in off-grid mode,off gird mode need distribute to load power.Only support in on-grid mode.

When using double-sided modules, pay attention to the following when choosing an inverter:
One is not to overmatch, because bifacial modules can sometimes increase power generation by 20% to 30%, that is to say, increase output power. It is recommended that modules and inverters be configured at 0.9:1.
Second, when the power of the module increases, only the current can increase, but the voltage will not increase. Therefore, it is necessary to choose an inverter whose input string current is greater than 12A.

The popular understanding of double-glass double-sided modules is that the front and back sides of the module can generate electricity. The front of the module receives direct sunlight to generate electricity, and the back of the module absorbs background reflected light and surrounding scattered light to generate electricity. When conditions are ideal, It can increase the power generation of modules by 20% to 30%. Generally, the lighter the color of the object, the higher the reflectivity of the object. The more the power generation of the components increases.

The anti-reverse current of the DC terminal is mainly realized by anti-reverse diode;
The anti-reverse on the AC side is mainly realized by the current detection device (two-way smart meter and CT) at the grid connection point. An inverter is equipped with a two-way smart meter and a current transformer. The inverter and the meter communicate through the 485 interface. The two-way meter is installed at the grid connection point. When the inverter detects that the meter has current flowing to the grid, it immediately changes its working mode. , From the MPPT maximum power tracking mode to the control output power mode, the output power of the inverter is almost equal to the load power.

In the photovoltaic system, the flow direction of energy is photovoltaic inverter→ load→grid, while in the grid system, the flow direction of energy is grid→load. If it is inconsistent with it, it is reverse. The anti-reverse of photovoltaic system we often say includes two aspects: one is to prevent the current backflow of other solar panel from causing unnecessary damage or accidents in case of short circuit or grounding fault of DC system; Second, in some places, only photovoltaic power generation is allowed for self use to prevent electricity from flowing to the power grid.

The power generation is related to the capacity ratio of panels and inverter. The size of components will affect the laying of solar array, depending on the specific project situation.According to the lighting conditions and project installation, it is recommended to control the volume ratio between 1 and 1.3.

With the increasing pursuit of power generation efficiency of photovoltaic power station, the voltage on the DC side of photovoltaic power station has been gradually raised. In the early stage, the maximum DC voltage of 600V inverter has been replaced by 1000V voltage, and even raised to 1100V. There is no doubt that the high voltage on the DC side of the photovoltaic system will reduce the line loss and improve the system efficiency. Therefore, the current 1100 system scheme has become the first choice for large-scale photovoltaic power stations. We believe that most of the distributed photovoltaic power stations are household photovoltaic or photovoltaic power stations installed on the roofs of various buildings. They are closer to people's daily life. They are usually connected to the user side power grid with low access voltage. In addition to pursuing the power generation efficiency of photovoltaic power station, the more important thing is safety. The system scheme below 1100V shall be adopted as far as possible. High efficiency inverter with low starting voltage and wide MPPT range shall be selected.

In the whole photovoltaic system, the DC side voltage is usually as high as 600-1500vdc. Due to loose contact, poor contact, damp wire, insulation rupture and other reasons, it is very easy to cause DC arcing. The high temperature generated by the arc is very easy to lead to fire when the adjacent substances reach the ignition point, that is, DC arcing is a potential safety hazard. AFCI function by identifying the arc fault characteristic signal in the circuit, AFCI will disconnect the power supply before the arc fault develops into fire or circuit short circuit, which greatly increases the system safety.

In case of shielding and poor connect in the solar plant, the I-V curve of panes will be abnormal. The system will judge the problems in the solar plant, by detecting the I-V curve of photovoltaic array, and automatically give relevant operation and maintenance schemes. Compared with traditional maintenance such as visual observation, it is more accurate and faster. It is more convenient and economical without purchasing expensive operation and maintenance equipment.