Table 2 Summary and comparison of discussed topologies among proposed H6-D topology.

From: A new H6 neutral point clamped transformerless photo voltaic inverter

Overall performance 

Vout

Iout

VAN

VBN

CMV

CM-LC

HERIC

Unipolar

(+400V,0,–400V)

Sinusoidal

Oscillations(~220V)

Oscillations

Floating(~200V)

<0.3A

HBZVR

Unipolar

Sinusoidal

Oscillations (~230V)

Oscillations

Floating(~200V)

<0.3A

HBZVR-D

Unipolar

Sinusoidal

No Oscillations

No Oscillations

Constant(200V)

<0.03A

PN-NPC

Unipolar

Sinusoidal

No Oscillations

No Oscillations

Constant(200V)

<0.03A

HBZVSCR

Unipolar

Sinusoidal

No Oscillations

No Oscillations

Constant(200V)

<0.03A

H6-I

Unipolar

Sinusoidal

No Oscillations

No Oscillations

Constant(200V)

<0.03A

H6-D

Unipolar

Sinusoidal

No Oscillations

No Oscillations

Constant(200V)

<0.03A