Introduction to Comprehensive Knowledge of Household Solar Power Generation Systems

When it comes to solar energy, the first thing we think of is a solar water heater. As a typical representative of energy conservation and environmental protection, solar water heaters have been favored by consumers in recent years, leading the market in sales. However, do you know about home solar power generation systems? Does it work the same principle as a solar water heater? Below, the editor will introduce to you the power generation principle and system classification of household solar power generation systems.

Photovoltaic power generation is a technology that utilizes the photovoltaic effect at semiconductor interfaces to directly convert light energy into electrical energy. The key component of this technology is solar cells. After being connected in series and packaged for protection, solar cells can form large-area solar cell modules, which are combined with power controllers and other components to form photovoltaic power generation devices. The advantage of photovoltaic power generation is that it is less restricted by geographical conditions, as sunlight shines on the earth. Photovoltaic systems also have the advantages of safety, reliability, noise free, low pollution, no need to consume fuel, on-site power generation without the installation of transmission lines, and short construction cycles.

A household power generation system generally consists of a photovoltaic array composed of solar cell modules, solar charge and discharge controllers, battery packs, off grid inverters, DC loads, and AC loads. If the output power supply is AC 220V or 110V, an inverter needs to be configured. The photovoltaic array converts solar energy into electrical energy under illumination, supplies power to the load through a solar charging and discharging controller, and charges the battery pack at the same time; When there is no light, the solar charging and discharging controller supplies power to the DC load from the battery pack, while the battery also directly supplies power to the independent inverter. The independent inverter converts the current to power the AC load.