EnerCollege

The ATESS DC coupling energy storage system aims to use the rectifier cabinet RTF to replace the bypass cabinet Bypass in ATESS' original AC coupling solution, thereby supporting the function of grid and generator access, changing the state switching logic of the grid and generator, and no longer carrying out the switching work on the AC side, eliminating the output fluctuation caused by the switching, thereby avoiding the risk of restarting sensitive loads. In the DC coupling solution, the energy storage system will serve as buffer power to achieve a completely smooth operation of the power system. This system is very suitable for large off-grid systems with a large proportion of inductive loads or with extremely unstable power grids and poor generator performance.

Myanmar, the largest country in Mainland Southeast Asia, is one of the least developed nations, with only 50 percent of households connected to the public grid. Solar energy as an important solution to resolve the energy crisis and climate change wins its due attention in Myanmar.

With the expansion of blackouts, Myanmar’s severe power outage poses a big problem for the routine operation of public recreational facilities. Previously totally powered by fuel generators, a playground in Lashio, the largest town in northern Shan State, is deeply troubled by the nearly daily power cuts and the 3 or 4 power supply hours each day are far from meeting the power demand. Meantime, the soaring fuel prices make the cost of using fuel generators too high. Thus, to alleviate the problem, the owner of the playground actively seeks solutions and utilizes PV to generate electricity.

A PV energy storage system includes solar modules, controllers, inverters, batteries, loads, and other equipment. Today there are various technical routes, but whatever it is, the energy needs to be collected at a certain point. There are mainly two topologies in the market: DC coupling and AC coupling. Then you might ask: which configuration should be more preferred, AC or DC coupling? Today we are going to reveal the pros and cons of both.

With the penetration of energy storage systems, today the service life and operating environment of lithium batteries are drawing more attention. In the past years, ATESS has been committed to the research and development of lithium battery BMS. By the end of 2021, we have finally delivered a satisfactory result: The ATESS next-generation battery system integrated intelligent active balancing technology is officially launched. The application of active balancing will ensure that the battery system always is in the best performance condition, hence improving the service life of the battery, also it can make the battery system adapt to diverse load conditions, meanwhile greatly reducing the cost of maintenance, increasing system reliability, stability and load adaptability.