Chapter Iii Introduction To System; System Composition - Alpha ESS PWG2-50K User Manual

4 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.
Main composition of Bi-directional Hybrid Storage Inverter cabinet is shown in Fig.3-1.
Serial
No.
1
2
3
Chapter III Introduction to System
Fig.3-1 Topological graph for Bi-directional Hybrid Storage Inverter
Table 3-1 Main composition of Bi-directional Hybrid Storage Inverter cabinet
Name
Cabinet
PCS-AC
PCS -DC
Quantity
The cabinet is equipped with
plane
distribution components.
1~2
50KW 1 set; 100KW 2 sets;
set(s)
1~2
50KW 1 set; 100KW 2 sets;
set(s)
Remark