Notes on Rectifier Power Flow Modeling

Voltage Control Mode

The rectifier has two control modes. The first is voltage control. In this mode, the output of the rectifier is held at the specified voltage set point unless the following limiting conditions occur:

Note that the combination of the input AC voltage and the thyristor control’s attempt to change Alpha can create limiting conditions. Consider these two limiting conditions:

IGBT rectifier: Since the controls and limiting conditions for IGBT’s are not well known and vary significantly between manufacturers, the DC voltage is held like a SWING bus. No AC input voltage condition has any effect on the DC voltage.

Current Control Mode

In Current Control Mode, the rectifier holds the DC current on the rectifier output at the specified current level unless a limit is hit. If a limit is hit, the DC current is determined by Kimbark’s equations and the DC system on the output of the rectifier.

More Information

Rectifier Data  
     

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Help was last updated on 7/10/2017