Lebanon bidirectional energy storage inverter

What is a bidirectional inverter stage?

The inverter stage is bidirectional, enabling power conversion from DC stage to AC stage and vice versa. The topology is constituted by an H-Bridge with each group of diagonal switches operating at high frequency during one half-wave of output voltage.

How efficient is a bidirectional DC/DC converter?

Figure 4-8 and Table 4-2 show the efficiency of the bidirectional DC/DC converter functioning in buck mode at 400V DC-link output. The input battery voltages considered are 80V, 160V, 240V, and 320V and the table shows that the converter achieves peak efficiencies of 97.9%, 99.0%, 99.2%, and 99.4% respectively. Figure 4-8.

What is a bi-directional converter?

Bi-directional converters use the same power stage to transfer power in either direction in a power system. This helps reduce peak demand tariff, reduces load transients, and enables quick changes in the direction of power transfer. They have high efficiency, up to 97% at power levels up to 22KW.

What are the benefits of using bi-directional converters?

Bi-directional converters reduce peak demand tariff, reduce load transients, and provide V2G capabilities with quick power transfer direction changes. They also offer high efficiency (>97%) at power levels up to 22KW. These converters use the same power stage to transfer power in either direction in a power system.

Why is bidirectional DC/DC converter necessary?

Bi-directionality is necessary since the DC/DC converter needs to act as a battery charger (buck mode) in one direction and discharge the battery (boost mode) providing a higher and stable output voltage at the DC-link. Figure 1-2. Bidirectional DC/DC Converter Block Diagram

What is lmg3522r030 power supply isolation?

The power supply isolation is based on the UCC14131 which is a high isolation DC/DC power module and provides an isolated 12V supply for the GaN FET from the 12V power supply on the board. LMG3522R030 also has built-in junction temperature reporting. This temperature signal is isolated by using the same digital isolator.