Abstract |
This paper derives the averaged-value models for 6- and 12- pulse transformer-diode rectifier units and validates their utilities by comparison of the resultant transient and steady state behaviors with those obtained from extensive simulations of detailed 6- and 12-pulse diode rectifier models. It is shown that the averaged-value models capture the key features of the dynamic characteristics of the rectifiers, while being time invariant and computationally efficient. The developed models can, therefore, be used for stability assessment of electric power systems which employ the diode rectifiers, multiple power electronic converter-controlled loads and electrical drives. |