| Abstract |
A dynamic modeling approach for HVDC converters is described based on the assumption of a ripple
free but varying dc current. The derived model is shown to be an extension of the conventional quasistatic
model. Both models are evaluated via simulations and compared with a detailed three-phase
simulation. Especially if the commutation reactance of the converter is large in relation to the dc
reactance, the dynamic response of the quasi-static model significantly differs from the detailed
simulation, whereas the extended model captures the converter dynamics much better. |
