Patent ID: 7433216
Filing Date: 2008-10-07
Classification: H02M

Abstract:
1. A method of controlling a fundamental voltage associated with an active multi-level converter, the method comprising: determining a desired fundamental voltage magnitude to be generated at an alternating current (AC) input terminal of the active multi-level converter; combining a first fixed pattern of pulses with a second fixed pattern of pulses based on the desired fundamental voltage magnitude to generate a third pattern of pulses; determining switching control waveforms to be applied to each active component within the active multi-level converter based on the third pattern of pulses; and applying the determined switching control waveforms to each of the active components within the active multi-level converter, wherein the switching control waveforms selectively switch each of the active components within the active multi-level converter between a conducting state and a non-conducting state, resulting in the desired fundamental voltage magnitude being generated at the AC input terminal of the active multi-level converter.