P

Positive sequence active power evaluated using positive sequence voltage and current followed by a low-pass filter

pu

Q

Positive sequence reactive power evaluated using positive sequence voltage and current followed by a low pass filter

pu

PF

Power factor evaluation using active and reactive power

-

Vg

Three-phase instantaneous grid voltages 

pu

Vrms

RMS value of the three-phase grid voltages

pu

Ig

Three-phase instantaneous grid currents

pu

Vdc_pu

Nominal DC link voltage 

pu

Vrms_avg

Average of the RMS value of three-phase grid voltages

pu

Freq

Frequency of the three-phase grid voltage obtained from PLL

Hz

wt

Angle varying between 0 and 2*pi, synchronized on zero crossings of the fundamental (positive-sequence) of phase A voltage

rad