In the home energy storage system, the high power of the lithium battery requires multiple battery packs to be connected in parallel. At the same time, the service life of the home storage product is required to be 5-10 years or even longer, which requires the battery to maintain good consistency for a long time, especially the battery voltage. Not too far off.
If the battery voltage difference is too large, it will lead to insufficient charge and discharge of the whole set of batteries, attenuation of battery life, and shortened service life.
In response to the specific needs of the home energy storage system, on the basis of the conventional home storage BMS, Daly has integrated the patented technology of active balancing and launched a new active balancing home storage BMS.
Active Balance
Li-ion BMS generally have a passive equalization function, but the equalization current is usually less than 100mA. And the latest active balancing home storage BMS launched by Daly, the balancing current is increased to 1A (1000mA), which greatly improves the balancing efficiency.
Different from passive balance and other active balances, Daly active balance home storage BMS adopts energy transfer type active balance.
This technology has two major advantages: 1. Less heat generation, low-temperature rise, and high safety factor; 2. Cut high and fill low (transfer the energy of the high-voltage battery cell to the low-voltage battery cell), and the energy is not wasted.
Thanks to this, the lithium battery equipped with Daly's active balancing home storage BMS can store energy for the home energy storage system more permanently and reliably.
Parallel protection
The electricity stored in the home energy storage system is usually in the range of 5kW-20kW. In order to facilitate handling and installation, multiple sets of batteries are often connected in parallel to achieve higher power storage.
When the battery packs are connected in parallel, if the voltages are inconsistent, a current will form between the battery packs. The resistance between the battery packs is very small, even if the voltage difference is not large, a large current will be formed between the battery packs, which will damage the battery and the BMS.
In order to solve this problem, Daly active balance home storage BMS integrates a parallel protection function. Behind this function is the patented technology independently developed by Daly, which can ensure that when the battery packs are connected in parallel, the current caused by the voltage difference will not exceed 10A, achieving a safe parallel connection.
Smart Communication
In order to better manage the home energy storage system and interact with other devices, in terms of hardware, Daly Active Balance Home Storage BMS provides UART, RS232, dual CAN, and dual RS485 communication interfaces. There are also Bluetooth modules, WiFi modules, display screens, and other accessories.
In terms of software, Daly has independently developed a computer host computer, a mobile APP (SMART BMS), and Daly cloud (databms.com). In addition, the Daly home storage BMS supports mainstream inverter communication protocols, and can also be customized on demand.
Through the complete solution of hardware and software, the intelligent supervision of parallel battery packs is finally realized, and the diverse needs of local monitoring and remote monitoring are met, and at the same time, it is convenient for suppliers and operators to carry out remote and batch full life cycle management of batteries.
Users of home energy storage systems, no matter where they are, can view and manage the operation status of their home energy storage systems on their mobile phones or computers. Manufacturers of home energy storage systems can also grasp the historical and real-time data of batteries in a timely and comprehensive manner, so as to provide users with better services.
Security certification
Different countries and regions have different product standards for home energy storage systems, especially for some safety protection functions, which will have mandatory requirements and need to be implemented by BMS.
Daly actively balances the home storage BMS, which can customize secondary protection, gyroscope anti-theft and other functions, so that PACK can meet the safety certification requirements of different markets.
Relying on a number of patented technologies and reliable performance, Daly's active balancing home storage BMS is a home energy storage product, which brings a huge improvement in product strength and is an indispensable dedicated BMS for building high-quality home energy storage systems.
Post time: Aug-04-2023
