AC, DC, BLDC Motor Drives
Technical Lecture Session
Motor Drives I
Induction motor drives, Trans-Z-source, Inverter, Fault-tolerant control
This paper presents a design and thorough analysis of the trans-Z-source with higher boost capability and negligible leakage inductance with fault-tolerant capability for open and short-circuit faults occurring in the power semiconductor switches. An efficient faulty leg identification method is proposed which is independent of the temperature rise occurring in the faulty mode. The proposed fault-tolerant scheme is characterized by low cost, fast fault diagnosis irrespective of load, and maintaining post-fault speed characteristics of motor identical to pre-fault characteristics. Also, an experimental comparative study with similar fault diagnosis strategies is tabulated to validate the potential of the proposed method.