Skip to main content

Table 2 Low voltage ride through variables of voltage symmetric sag

From: A novel low voltage ride through strategy for cascaded power electronic transformer

  Variable Rectified state Inverter state
Before voltage sag \( {P}^{\ast}\left({i}_{d0}^{\ast}\right) \) 0.375 − 0.375
\( {Q}^{\ast}\left({i}_{q0}^{\ast}\right) \) 0 0
P 0 0.375 − 0.375
Q 0 0 0
After voltage sag α = 0.4 \( {i}_d^{\ast } \) 0.937 − 0.937
\( {i}_q^{\ast } \) 0.75 0.75
P 0.375 − 0.375
Q −0.3 − 0.3