Why am I getting a Complex signal mismatch error when using the Simscape power system FACT element - UPFC(phasor model)

I got the following error when I tried a simulink model (named UPFC compensated line) of a power system using only the Simscape powersystem specialised technology components.

Complex signal mismatch. Input port 1 of 'UPFC_compensated_line/Unified Power Flow Controller (Phasor Type)/Power Components Modeling (Shunt & Series Converter)/Power Components modeling (Shunt Converter)/Demux1' expects a signal of numeric type real. However, it is driven by a signal of numeric type complex

Component: Simulink | Category: Block error

Complex signal mismatch. Output port 1 of 'UPFC_compensated_line/Unified Power Flow Controller (Phasor Type)/Power Components Modeling (Shunt & Series Converter)/Power Components modeling (Shunt Converter)/dq-axis model of 3-ph RL branch' is a signal of numeric type complex. However, it is driving a signal of numeric type real

What might be the reason? Please help to resolve the problem

Answer 1

[Sabin]

The UPFC block is a phasor model which does not include detailed representation of the power electronics. You must use it with the phasor simulation method, activated with the Powergui block.