Recently, Sineng Electric helped the high-altitude grid-type energy storage power station in Ali Geji, Tibet to be successfully connected to the grid and put into operation, successfully creating a benchmark for high-altitude grid-type energy storage projects.

Stable support for efficient power banks on the "Roof of the World"

The total capacity of the grid-type energy storage power station in Ali Geji, Tibet is 6MW/24MWh. The average altitude of the location is over 4,500 meters, and the natural environment is extremely harsh. Considering the problems of high-altitude power derating and grid power over-allocation, Sineng Electric provides the power station with a new generation of grid-type energy storage system solutions independently developed, including 3 6.4MW grid-type centralized converters and boosters.

In conjunction with the 30MWp photovoltaic power station built at the same time, the power station will make full use of light resources after commissioning, effectively solve the photovoltaic access and absorption restrictions of the original weak power grid, actively support the safe and stable operation of the power grid, provide reliable power supply for the production and life of local residents, and promote the green and sustainable development of the regional social economy.

Professional and reliable, jointly building a new power grid

The on-site delivery happened to be the coldest time of the year in Ali, Tibet. The customer service team of Sineng Electric overcame the harsh environment of heavy snow and low oxygen at high altitude, and successfully completed the commissioning and acceptance on schedule with professional and meticulous services, which was highly recognized by customers.

As one of the important participating units of the two national standards "General Technical Specifications for Grid-Building Inverters" and "Technical Specifications for Electrochemical Energy Storage Grid-Building Inverters", Sineng Electric has always focused on the forefront of high-precision technology research and development. The new generation of products covers a variety of centralized and string-type technical routes. The full series is equipped with three modes of grid-following control, grid-building control and off-grid control to adapt to the complex grid-connected environment and operating conditions in various regions around the world.

This project plan uses Sineng Electric's 6.4MW grid-building centralized converter and booster integrated machine, including 4 1.6MW centralized energy storage converters.

The product adopts the second-generation VSG networking technology and the innovative "virtual excitation voltage + virtual impedance/power angle + inertia damping link" control algorithm, so that the product no longer has the defects of complex control logic, slow response speed, and poor robustness under large disturbances. It has the operating external characteristics of a synchronous voltage source and can actively support the stable and reliable operation of weak power grids under large and small disturbances.