1. Solar cell module
A solar cell can only generate a voltage of about 0.5V, which is much lower than the voltage required for actual use. In order to meet the needs of practical applications, solar cells need to be connected into modules. Solar cell modules contain a certain number of solar cells, which are connected by wires. For example, the number of solar cells on a module is 36, which means that a solar module can generate a voltage of about 17.
The physical unit sealed by solar cells connected by wires is called a solar cell module, which has certain anti-corrosion, windproof, hailproof, and rainproof capabilities and is widely used in various fields and systems. When the application field requires higher voltage and current and a single module cannot meet the requirements, multiple modules can be combined into a solar cell array to obtain the required voltage and current.
2. DC/AC inverter
A device that converts direct current into alternating current. Since solar cells emit direct current and the general load is an alternating current load, an inverter is indispensable. Inverters can be divided into independent inverters and grid-connected inverters according to the operating mode. Independent inverters are used in independently operated solar cell power generation systems to power independent loads. The grid-connected inverter is used to feed the generated power into the grid by the solar cell power generation system connected to the grid. The inverter can be divided into square wave inverter and sine wave inverter according to the output waveform.
3. Design of distribution room
Since the grid-connected power generation system does not have batteries, solar charge and discharge controllers, and AC and DC distribution systems, if conditions permit, the grid-connected power generation system inverter can be placed in the low-voltage distribution room of the grid connection point; otherwise, just build a 4-6m² low-voltage distribution room separately.