Alpha ESS PWG2-100K, User Manual, Page: 16 / 49

4 Chapter III Introduction to System
Chapter III Introduction to System
3.1 System composition
PWG2-50K/ 100K Bi-directional Hybrid Storage Inverter is composed of 1 or multiple set(s) of PCS-DC and
PCS-AC modules. The modules identify master-slave systems through the dial-up codes on the panel. #1 is a master
system, while other modules track the master system. The Bi-directional Hybrid Storage Inverter cabinet is
equipped with lightning protector, AC/DC breaker and distribution units. If on/off-grid switching is to be achieved,
extra power distribution unit (STS) needs to be added. Fig.3-1 is a topological graph for its composition and
structure.
Fig.3-1 Topological graph for Bi-directional Hybrid Storage Inverter
Main composition of Bi-directional Hybrid Storage Inverter cabinet is shown in Fig.3-1.
Table 3-1 Main composition of Bi-directional Hybrid Storage Inverter cabinet
Serial
No.
Name Quantity Remark
1 Cabinet plane
The cabinet is equipped with
distribution components.
2 PCS-AC
1~2
set(s)
50KW 1 set; 100KW 2 sets;
3 PCS -DC
1~2
set(s)
50KW 1 set; 100KW 2 sets;