The off-grid photovoltaic power generation system for household use consists of the photovoltaic module, supporter, controller, solar inverter, accumulator and power distribution system. The system's electric plan design should take the selection and computing of modules, inverters (controllers), and accumulators into consideration. Before the plan design, necessary preparation should be made, because the off-grid is customized without a unified plan. Therefore, the user load type and power, electricity consumption in the daytime and in the evening, and climate conditions of the installation place should be first learned. The power supply for the off-grid photovoltaic system relies on the weather, which is not 100% reliable.
The photovoltaic off-grid power generation system is mainly used to solve the basic electricity consumption problem for residents in areas without electricity or insufficient electricity. The photovoltaic off-grid power generation system is mainly constituted of the photovoltaic component, bracket, controller, power inverter, storage battery and power distribution system. Compared with the photovoltaic grid-connected system, the off-grid system has an additional controller and storage battery. In addition, the inverter directly drives the load, so the electrical system is more complicated. Since the off-grid system may be the only power source of the user and the user relies more on the system, the off-grid solar system design and operation must be more reliable.
In off-grid photovoltaic (PV) systems, choosing the right inverter is a crucial step. The inverter not only determines whether the system can function properly but also directly impacts the system's efficiency, stability, and cost. Home Power Inverter will discuss the principles of selecting inverters for off-grid PV systems, the characteristics of different types of inverters, and their application scenarios, providing readers with a detailed professional guide.
