The three-phase bridge rectifier with a capacitive load

The 3-phase bridge rectifier supplying a capacitive load is significantly more difficult to analyse than the inductive load case. The authors examine how the ideal behaviour of such a system is affected by the following circumstances: (i) a supply impedance which includes resistance; (ii) less than infinite link capacitance; (iii) an unbalanced 3-phase supply. The authors derive results for a digital simulation (CAD) package, which conveniently illustrates the rectifier trends.