Block diagram of multilevel energy storage and current converter system
Topology of multilevel energy storage converter device is composed of grid reactor, converter power unit, battery, and the corresponding control and protection equipment, devices to 1700 v IGBT as the core, completely consists of no battery cluster parallel cluster of battery, use the converter ac side series, star or Angle after direct access to the 3.3 kV bus to 35 kV voltage grade.
Characteristics of multilevel energy storage and current converter
? Multilevel energy storage and current converter is suitable for various user requirements of a single machine more than 2MW;
? Without a boost transformer, it can be directly connected to the 3.3KV-35kV power grid;
? Low loss (less than 1%), high operating efficiency;
? Large capacity of single machine;
? Battery cluster without parallel connection, safer and higher utilization;
? Single cluster battery charge and discharge is safer;
? Nonblackouts (continuous) power supply function can be selected.