A Unified Analysis of the Fault Tolerance Capability in Six-Phase Induction Motor Drives
Document Type
Article
Publication Date
1-1-2017
Abstract
The fault tolerance of electric drives is highly appreciated at industry for security and economic reasons, and the inherent redundancy of six-phase machines provides the desired fault-tolerant capability with no extra hardware. For this reason some recent research efforts have been focused on the fault-tolerant design, modeling, and control of six-phase machines. Nevertheless, a unified and conclusive analysis of the postfault capability of six-phase machine is still missing. This paper provides a full picture of the postfault derating in generic six-phase machines and a specific analysis of the fault-tolerant capability of the three mainstream six-phase induction machines (asymmetrical, symmetrical, and dual three phase). Experimental results confirm the theoretical post fault current limits and allow concluding, which is the best six-phase machine for each fault scenario and neutral arrangement.
Keywords
Fault tolerance, Fault tolerant systems, Windings, Torque, Circuit faults, Power conversion, Field-oriented control, Six-phase drives
Divisions
fac_eng
Publication Title
IEEE Transactions on Power Electronics
Volume
32
Issue
10
Publisher
Institute of Electrical and Electronics Engineers