The power level of power level industrial Energy Storage System is 10kW to 100kW. In the public business -grade RESIDENTIAL ENERGY Storage System, the power level exceeds 100kW, usually connected to the three -phase AC power supply (480VRMS). The system concept is similar to the residential Energy Storage System, but many lithium -ion battery packs are connected. Each battery pack is equipped with its own integrated BMS, which can generate total battery voltage higher than 740V.

• 10kW to 100KW Industrial RESIDENTIAL ENERGY Storage System

• 100KW utility grade RESIDENTIAL ENERGY Storage System, usually connected to three -phase AC (480VRMS)

In an era when the secondary battery is becoming more and more popular in electric transportation solutions (especially electric vehicles), it is expected that we will have to deal with a large number of electric vehicle batteries that have been used in the future. A huge advantage of modular -level and multi -level architecture is to support the secondary life of the battery. For example, it is suitable for batteries that have reached the end of the life cycle and cannot be used for electric vehicles.

• Module -level joint, multi -level architecture

The traditional system caused by IGBT separate devices and modules requires the rated voltage of 1200V switch (usually IGBT separate devices and modules), which is used to connect the power conversion level of the voltage of 800V to 900V DC bus. However, this system architecture cannot provide the best battery utilization rate. By connecting the battery pack with different charging states (SOCs), the system can only run when a battery pack reaches the minimum charging volume. At this time, the entire system is closed, although other battery packs may be sufficient. In short, the battery utilization rate is limited to the battery pack with the lowest power.

• Battery packs with different charging states (SOC)

Multi -module methods, realizing the best battery utilization in order to overcome this limit, developed a modular -level and multi -level architecture, and made full use of the advantages of high -efficiency low -voltage MOSFETs, such as the leading Optimos ™ series in Yingfeiling market. Each battery pack is connected to its own two -way power converter, and then connects the output of these converters to create a high -voltage DC bus. In this way, the same current can be provided from each level output. Instead, the current from each battery cannot be exactly the same. Each level of voltage output is controllable. If the battery charging state (SOC) drops below the minimum value, it can bypass at all levels. With this flexibility, advanced control solutions can now place larger capacity loads on battery packs with higher SOCs, so as to balance different batteries in all battery packs.