Grid-tied inverters (GTI) can be used with batteries and the public grid. It converts DC power from the battery (from the solar system) into AC power required by the load. It enables the solar panel system’s excess energy to be fed back into the grid, synchronizing the current’s frequency and phase to fit the utility grid. Power is transferred from a DC source to the utility grid by increasing the voltage level of the inverter.

Hybrid inverters combine the functions of a stand-alone inverter and a grid-tied inverter. This type of inverter can effectively manage the current operation between the solar system, the battery, and the public grid. It can inject the excess capacity generated by the solar power generation system into the public grid to obtain compensation when the power is sufficient. It can also be used to generate electricity. When the system and battery are unable to carry the power supply, the public grid switches to power the home. In other words, a hybrid inverter can operate as a standalone inverter or as a grid-tied inverter, depending on the load requirements.

For solar photovoltaic systems, when there is sufficient sunlight during the day, the electricity generated by the solar panels can supply your electricity needs, and the excess electricity can be used to charge the battery. At night or when there is insufficient sunlight, you can draw power from the reserve battery. exist When electricity supply is abundant or electricity prices are low, power can be supplied from the grid and added to the battery for charging. When the power supply is tight or the electricity price is high, you can give priority to using battery power to further save on electricity bills.

Pure sine wave inverter is a type of high-frequency inverter which is the most advanced and efficient type of inverter. They produce a smooth sinusoidal waveform that is nearly identical to the current supplied by the grid. This type of inverter is therefore ideal for sensitive electronic equipment that requires a stable power supply. They can run almost anything, from computers to televisions to medical equipment, without causing damage or interference, making them the first choice for most users. Pure sine wave inverters are suitable for camping, home use, maritime navigation, RV power supply, solar systems and other scenarios. Although it is more expensive than a square wave or modified sine wave inverter, the price is negligible compared to the cost of damage to electronic equipment.

The modified sine wave inverter is an improvement on the square wave inverter, providing a waveform that is closer to a pure sine wave. The structure of the modified sine wave inverter is much simpler than that of the pure sine wave inverter but more complex than that of the pure square wave inverter. Although the final output waveform of these inverters is not a pure sine wave, the harmonic distortion of the output is still reduced to 24%. Filtering further reduces distortion, but the amount is still significant. These inverters can run a wider range of equipment and are more energy efficient than square wave inverters. However, they can still cause problems with some sensitive electronic equipment and can produce audible noise in devices such as audio systems. Correction waves may permanently damage electronic devices with timers in circuits. All appliances with electric motors, if connected to a modified wave inverter, will not work as efficiently as if connected to a pure sine wave inverter.

Square wave inverters produce square waveforms. It is the simplest inverter that converts DC power into AC power. They produce a simple square wave output, are cheap, and are suitable for running some low-sensitivity electrical equipment such as lighting and fans. However, this type of inverter is not commonly used in home solar power systems because it can cause excessive heat and damage sensitive electronic equipment.

Standalone inverters, also known as off-grid inverters, are often used with battery banks to provide backup power in the event of a power outage.

One end of the inverter is connected to the battery, and the other end is directly connected to the load. They cannot be connected to the public grid because they do not have a synchronization function and are not affected by the public grid.

My common pure sine wave inverters, modified wave inverters, and square wave inverters can be used as independent inverters.