It may often happen that there is no mains access to planting or breeding guards on the mountain. At this time, we can install a photovoltaic energy storage system. So how to design a reasonable photovoltaic energy storage system to replace the daily electricity demand?
The difference between the small off-grid photovoltaic energy storage system and the grid-connected system is that the off-grid system does not need to generate electricity and use itself through the grid itself, while the grid-connected system must be combined with the grid to work normally. The off-grid system is not as simple as the grid-connected system. The power of the inverter and the photovoltaic module is similar, but an off-grid system is not.
What parameters should be paid attention to when designing an off-grid system?
1. The total power of electrical appliances installed on the ground
2. Total working time = real number of total watts
3. Light conditions of the installation site and installation inclination
Only by knowing these parameters can a set of optimal photovoltaic off-grid system be reasonably designed. The energy storage method of the off-grid system is stored by the energy storage battery, and the off-grid inverter can output and use it. The voltage matching of the off-grid system and the voltage of the grid-connected system (220V/380V) should be reasonably corresponding to the voltage of the grid-connected system. Generally, the voltage of off-grid system is mostly boost type. Inverted by DC low voltage.
The power of solar modules and inverters of off-grid systems is rarely the same, and each power demand site needs to be designed separately according to the actual power consumption, which is quite different from the grid-connected system. The off-grid system is directly used through DC inverter AC