Solar grid synchronous inverter

What is grid synchronization in solar energy?

However, the seamless integration of solar energy into the existing electrical grid requires precise synchronization between the solar inverter and the grid itself. Grid synchronization in solar energy is the process of aligning a solar inverter’s output with the grid’s voltage, frequency, and phase, enabling safe and efficient power transfer.

How does a solar inverter synchronize with the grid?

In this method, a device called a "synchroscope" helps the solar inverter synchronize with the grid. The synchroscope displays the phase difference between the solar system and the grid. When both systems are in phase (i.e., synchronized), a rotating disc on the synchroscope aligns with a fixed reference mark.

How does a solar inverter work?

For safe and reliable integration with the electric grid, the solar inverter must precisely synchronize its AC output with the grid’s voltage, frequency, and phase characteristics. This process, known as grid synchronization, is essential for ensuring a stable power flow, preventing equipment damage, and maintaining grid stability.

How do solar inverters connect to the grid?

Solar inverters connect to the grid through a process known as grid synchronization, which involves aligning the inverter's output voltage, frequency, and phase with the grid's parameters. Once synchronization is achieved, the inverter closes its output contactors, allowing bidirectional power flow between the solar power system and the grid.