A NEWTON SOLUTION FOR THE HARMONIC PHASOR ANALYSIS OF AC DC CONVERTERS/

The steady state equations that describe the converter and de system i n the harmonic domain are solved by means of Newton's method, in a man ner suitable for embedding in an iterative harmonic analysis of the co mplete power system. The solution includes the interaction of the conv erter with the de system, and the effect of variation in the firing an d end of commutation angles caused by ac voltage and dc current harmon ics. The convergence of Newton's method is investigated, and methods f or accelerating the solution are implemented. Finally, the solution ob tained is validated by means of time domain simulation.