Fault-tolerant matrix converter topologies and switching function algorithms for AC motor drives with delta connection windings

摘要

The first part of this paper present some modification on derived formulations given in a recent publication for switching function algorithms of three-phase matrix converter based drives against open failures. Also a remedial matrix converter structure and switching algorithms for continuous, fault-tolerant operation of matrix converter based AC motor drives with delta connection windings in case of open faults is developed. So the simulation results for the recently proposed fault-tolerant matrix converter in star connection motor are compared with corrected algorithms presented in this paper. Finally the same algorithm is applied to simulate fault-tolerant matrix converter topologies for AC motor drives with delta connection motor winding in order to show the feasibility of the proposed fault-tolerant matrix converter topology.