A new computer-aided method of distortion sensitivity-analysis and is elimination scheme for power electronic circuits

Proposed are a new general computer-aided algorithm for computing parameter sensitivities of distortion in power electronic circuits and its elimination scheme. The adjoint network approach is employed for calculating parameter sensitivities of the distortion factor and the ripple factor of current and voltage waveforms. The optimal filter design-algorithm to reduce undesirable harmonics is also proposed. Their performance is shown to be superior through demonstrated numerical examples.