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1. (WO2011160644) METHOD OF PWM SWITCHING FOR PARALLEL CONVERTERS

Pub. No.:    WO/2011/160644    International Application No.:    PCT/DK2011/050233
Publication Date: Dec 29, 2011 International Filing Date: Jun 23, 2011
IPC: H02M 7/493
Applicants: VESTAS WIND SYSTEMS A/S
ZAGRODNIK, Michael Adam
Inventors: ZAGRODNIK, Michael Adam
Title: METHOD OF PWM SWITCHING FOR PARALLEL CONVERTERS
Abstract:
The present invention relates to a method of PWM switching for control for a converter having a plurality of parallel converter legs per phase and a converter having a plurality of parallel converter legs in each phase. The plurality of converter legs may assume a set of possible different switching states, wherein the converter may be exposed to a cyclic load. Furthermore, the present invention relates to a converter having a plurality of parallel converter legs in each phase, wherein the converter includes a control block for identifying different switching states.