Power conditioners are necessary to convert solar-panel generated DC power into the AC power needed for residential consumption and for the recovery of the power to power company power systems.
Conversion Circuit Example
Type |
Single-phase
inverter |
2-level
inverter |
NPC 3-level
inverter |
A-NPC 3-level
with RB-IGBT |
Circuit |
|
|
|
|
Device |
IGBT:600V |
IGBT:1200V |
IGBT:600V |
IGBT:1200V
+600V(RB-IGBT) |
Output
Voltage |
|
|
|
|
Capacity |
< 10kW |
> 10kW |
> 10kW |
> 10kW |
IGBT Modules for Solar Inverters
Table 1. 2-Level Inverters
2 level topology (condition: Vdc rating = 450V, Vdc max = 850V)
Table 2. NPC 3-Level Inverters
A-NPC 3 level topology (condition: Vdc rating = 450V, Vdc max = 850V)