(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. A solar cell module contains a certain number of solar cells 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 17V.
The physical unit formed by sealing 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 stand-alone inverters and grid-connected inverters according to their operating mode. Stand-alone inverters are used in stand-alone 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.