Power Module Assembly; Control Electronics; Figure 2-2. Power Module Assembly - Advanced Energy AE 600 User Manual

Advanced Energy

Power Module Assembly

The inverter uses insulated gate bipolar transistors (IGBTs) for converting DC power
into three-phase AC power. The inverter is protected by over-current, over-voltage,
and over-temperature detection controls. If a protection system is activated, the
power module will cease power conversion and send an interrupt signal to the digital
signal processor (DSP).
Figure 2‑2. Power module assembly

Control Electronics

The control electronics PCB is located in the upper right compartment. This PCB
includes the control electronics card cage and the ground fault detector interrupter
(GFDI) circuit. The purpose of the GFDI is to detect a ground fault (unintended
current flow from the solar panels to earth ground) and in the event of a ground fault,
stop AC power production.
The control electronics card cage houses the following PCBs:
• Power distribution PCB: Distributes the required logic level voltages for use
throughout the inverter.
• Controller PCB: Contains a powerful DSP that controls sine wave generation,
logic functions, and protection activities. All analog and digital inputs and
outputs are routed to the control PCB and fed to the DSP.
• Inverter interface PCB: Provides a central location for a range of input, output,
and control circuits.
2‑4
Power module assembly
Product Overview 570-1001791-05A