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Title:	A Hybrid 18-Pulse Rectification Scheme for Diode Front End Variable Frequency Drives
Number:	WP.AFD.07
Date:	09/29/2009
Description:	In this paper, a new 18-pulse topology is proposed that has two six-pulse rectifiers powered via a phase-shifting isolation transformer, while the third six-pulse rectifier is fed directly from the AC source via a matching-impedance. This idea relies on harmonic current cancellation strategy rather than the flux cancellation method and results in lower overall harmonics. It is also seen to be smaller in size and weight, and lower in cost compared to an isolation transformer. Experimental results are given to validate the concept.
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Language:	English
Doc Type:	Technical Documents
Doc SubType:	Technical Articles - White Paper

Product Information

Product Group:	Inverter Drives
Product Line:	General Inverter Drives