Simulation of emerging faults in electric machines

Modeling and simulation of electric machines, converters and systems

This paper presents a study on the application of fuzzy logic theory to control a directdrive dc motor. The design of fuzzy logic controller for speed of a DC motor is presented. Control performance of the fuzzy logic controller is studied by simulation. The simulation results with fuzzy control are compared with those of the conventional controller. 15:30 – Presentation of a Control Law for IM...

Design and Thermal Simulation of Induction Machines for Traction in Electric and Hybrid Electric Vehicles

An electric traction machine for an electric or a hybrid electric vehicle is usually designed for a specific operating point or cycle. For such an operating point or cycle, the masses and the cooling circuit of the electric machine determine the time dependent temperature distribution within the machine. For a specific load cycle, the thermal simulation of the machine can reveal possible mass a...

Detecting Emerging Wearout Faults

Aggressive CMOS scaling accelerates transistor and interconnect wearout, resulting in shorter and less predictable lifetimes for microprocessors. Studies show that wearout faults have a gradual onset, manifesting initially as timing faults before eventually leading to hard breakdown. Prior work suggests detecting wearout faults as they begin to affect normal operation, but these techniques requ...

Diagnosis of Mechanical Faults in Electric Motors

The ability to monitor the condition of an electrical machine has been a concern of industry for many years. Knowing when a machine requires maintenance allows users to perform the required maintenance at their convenience, rather than during costly unscheduled shutdowns. This need for improved industrial monitoring techniques has produced a number of studies on the detection of mechanical faul...

DESIGN OF ELECTRIC MACHINES: Axial Flux Machines