Computation of A.C.-D.C. System Disturbances. PT. II - Derivation of Power Frequency Variables from Convertor Transient Response

The aperiodic and distorted waveforms produced by h.v.d.c. convertors following system disturbances need to be processed in order to derive appropriate transient equivalents compatible with transient stability studies. This paper describes various techniques for the derivation of these equivalents and concludes that, while rms values provide realistic approximations for power, spectral analysis is required for the determination of voltage magnitudes.