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Title: Multilevel converters -- A new breed of power converters

Multilevel converters -- A new breed of power converters Multilevel voltage source converters are emerging as a new breed of power converter options for high-power applications. The multilevel voltage source converters typically synthesize the staircase voltage wave from several levels of dc capacitor voltages. One of the major limitations of the multilevel converters is the voltage unbalance between different levels. The techniques to balance the voltage between different levels normally involve voltage clamping or capacitor charge control. There are several ways of implementing voltage balance in multilevel converters. Without considering the traditional magnetic coupled converters, this paper presents three recently developed multilevel voltage source converters: (1) diode-clamp, (2) flying-capacitors, and (3) cascaded-inverters with separate dc sources. The operating principle, features, constraints, and potential applications of these converters will be discussed.
Authors: ;
Publication Date:
OSTI Identifier:102173
Report Number(s):CONF-9510203--2
ON: DE95017389; TRN: AHC29524%%53
DOE Contract Number:AC05-84OR21400
Resource Type:Conference
Data Type:
Resource Relation:Conference: IEEE/Industrial Application Society conference, Orlando, FL (United States), 8-12 Oct 1995; Other Information: PBD: [1995]
Research Org:Oak Ridge National Lab., TN (United States)
Sponsoring Org:USDOE, Washington, DC (United States)
Country of Publication:United States
Language:English
Subject: 24 POWER TRANSMISSION AND DISTRIBUTION; DC TO DC CONVERTERS; DESIGN; POWER SYSTEMS; POWER CONDITIONING CIRCUITS; POWER SUPPLIES