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This paper first analyzes the common mode (CM) noise in a motor drive system. Based on the CM noise model, both CM noise voltage cancellation and CM noise current cancellation, which includes feedback and feed-forward current cancellations, are investigated. The feed-forward current cancellation is implemented and tested. It is found that due to the speed and gain bandwidth limitations, the active...
This paper presents a new mathematical model for three-level non-regenerative Vienna-type rectifiers exploiting the equivalence of this topology with three-level neutral-point-clamped (NPC) converters. Specifically, it models the rectifier operation using a positive- and one negative-rail switching function-the standard approach for NPC converters. This equivalent modeling renders the state space...
A design optimization tool of motor drive power stage has been developed. Through analyzing and modeling three major blocks, including front-end harmonic filters, IGBT inverters, and EMI filters, in a industrial motor drive, optimization programs have been implemented by using genetic algorithm (GA) engine. The optimizer can be used as design and verification tools useful for practicing engineers...
A design optimization tool of motor drive power stage has been developed. Through analyzing and modeling three major blocks, including front-end harmonic filters, IGBT inverters, and EMI filters, in a general-purpose drive, optimization programs have been implemented by using genetic algorithm (GA) engine. The optimizer can be used as design tools for engineers who might not have deep insights of...
A design optimization tool of motor drive power stage has been developed. Through analyzing and modeling three major blocks, including front-end harmonic filters, IGBT inverters, and EMI filters, in a general-purpose drive, optimization programs have been implemented by using genetic algorithm (GA) engine. The optimizer can be used as design tools for engineers who might not have deep insights of...
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