The growth of the renewable energy industry, in particular solar and wind, has been explosive over the past decade. With this explosive growth comes challenges. As these power sources become a larger percentage of the grid, utility companies must face a substantial threat to system reliability. These challenges, however, can be met through the coordination of policy, regulation and innovative grid management inverter technology, making renewable energy, and solar PV in particular, an optimum source of power for the future.
The new national standards require the grid inverter in the power generation system must have low voltage ride through (LVRT) and zero voltage ride through functions. The technical requirements for zero voltage ride through is higher than that for low voltage ride through (LVRT) technology compared to technical requirements are higher, and the test for zero voltage ride through is stricter than that for low voltage ride through. Currently, the zero voltage ride through test has become a new standard for measuring domestic inverter technology innovation.