The world's first offshore grid-connected energy storage system is put into operation

Recently, the world's first offshore grid-based energy storage project built by China National Offshore Oil Corporation, the Weizhou Island 5MW/10MWh energy storage power station, was successfully put into operation. With the help of Sungrow's grid-based energy storage technology, the above problems were solved, creating China's first smart power system for offshore oilfields that integrates source, grid, load and storage and has multiple energy complementarities!

Building the Grid: Helping to build a stronger grid

Different from traditional grid-following energy storage, grid-building energy storage can actively identify the grid situation and more precisely and actively smooth out grid fluctuations. Sungrow has used its ten years of practical experience in virtual synchronous machine technology to enable the energy storage system to simulate the motion characteristics of traditional synchronous generators, actively build grid voltage and frequency, provide inertia support, achieve real-time voltage stabilization, build voltage, ms-level inertia response, etc., and improve grid strength.

Solving the power outage problem: quickly restoring power

In addition to voltage, frequency regulation and inertia support issues, network construction technology can also help solve the problem of power outages caused by extreme environments. The Weizhou Energy Storage Power Station is the first in China to actually use the energy storage black start function, which can restart the gas generator and quickly restore power supply in the event of a power outage.

At present, network construction technology is in the early stages of development. However, facing the future high-proportion access of new energy, deep collaboration among multiple entities on the power generation side, the power grid side, and the user side, and the new ecology of coordinated development of "source, grid, load and storage", network construction technology is an important boost to the construction of high-quality power grids. Sungrow's "stem cell grid technology", including frequency and voltage regulation, inertia support, black start and other network construction technologies, will continue to help the development of clean and efficient new power systems.