China's CSR Zhuzhou Electric Locomotive Research Institute Co., Ltd. announced on the 12th, they developed a special "voltage through" function PV inverter technology through the national certification. This achievement so that our country can rely on their own equipment to capture solar energy, wind power, "off-grid" storm.

     Reporters from China's CSR Zhuzhou Electric Locomotive Research Institute Co., Ltd understands researchers through painstaking research, finally succeeded in developing a new energy industry can be widely used in photovoltaic dc to ac inverter. This high-tech equipment in the grid-connected photovoltaic or wind power failure occurs when the voltage sag, play a "low voltage ride through" function to support the grid resume operation or avoid failure to expand.

After China's only certification of this technology with the Nanjing State Grid EPRI research and development test center for testing solar, photovoltaic inverter waveforms and test data and other indicators performed well in early October has passed technical certification.

     Some experts, China's wind power, solar and other clean energy generation rapid development in recent years. But some wind power and photovoltaic power plant is unstable, "off-grid" and other failures occur frequently. For ensure grid security and other reasons, a lot of wind power, photovoltaic electricity was reluctantly abandoned. The industry expects the first half of this year, there are about 2.776 billion kwh of wind power to be abandoned, nearly 1/3 of the fan in the "idle" state.

To change this outlook, the National Energy Board, the State Grid Corporation requires PV plant must have "low voltage ride through" feature to the grid. In this context, the domestic photovoltaic micro grid tie inverter certified by the authority to promote the healthy development of new energy industry is significant.