A sequence components model of the ac/dc converter in the harmonic domain

In the steady state, the ac/dc converter couples harmonics on the de side with sequence component harmonics on the ac side. A solution for the converter in sequence components may be more efficient than one in phase components. Since most other power system steady-state analysis is framed in sequence components, so too must the converter analysis be, if a unified solution is to be achieved. However in order to model the commutation process, existing converter models suitable for iterative steady state analysis are necessarily framed in phase components. When the converter steady state is solved by Newton's method, the advantages of both frames of reference can be derived by a judicious use of the sequence transform, interfacing a Newton solution in sequence components, to a converter model in phase components.