Design and Control of Linear Permanent Magnet Machine:
Applications for energy generation, energy conversion, or actuation can benefit from the use of linear machines. To further investigate the possibilities and challenges with linear machine technology, a linear permanent magnet machine was designed and manufactured in the EMDL. An experimental setup including a linear dynamometer and cooling system was assembled to characterize the designed machine so the capabilities of this machine topology can be validated. The results from this project can help build the knowledge of the design of linear permanent magnet machines and this knowledge can be extended to apply this linear machine topology to a variety of applications.
Design and Control of Linear Permanent Magnet Machine:
Applications for energy generation, energy conversion, or actuation can benefit from the use of linear machines. To further investigate the possibilities and challenges with linear machine technology, a linear permanent magnet machine was designed and manufactured in the EMDL. An experimental setup including a linear dynamometer and cooling system was assembled to characterize the designed machine so the capabilities of this machine topology can be validated. The results from this project can help build the knowledge of the design of linear permanent magnet machines and this knowledge can be extended to apply this linear machine topology to a variety of applications.
Turn-to-turn fault mitigation for permanent magnet synchronous motors (PMSM):
The objective of the project is to reduce the thermal stress in the faulted winding to decelerate the fault-propagation and extend the post-fault life span of the machine. Having a mitigation technique is vital in applications where human interaction is required; such as, hybrid electric vehicles and aerospace application. To protect lives it’s essential to develop safety protocols for all types of faults, in order to guarantee a safe fault operation.
Condition Monitoring and Failure Prognosis of Permanent Magnet Machine Stator Insulation Faults:
The effectiveness of electric machine stator winding insulation lessens with age, leading to short circuits and catastrophic failure. By monitoring the insulation condition with terminal voltages and currents, the extent of the insulation damage can be known before a low resistance short occurs.
Fault Detection and classification in permanent Magnet Synchronous Machines:
Work on detection of faults in permanent magnet synchronous machines (PMSM), using signal-processing techniques like Fast Fourier Transform and Linear Discriminant Analysis (LDA) to classify the severity and detect the type of the fault. Two main faults are under tests; static eccentricity and stator short circuit faults. Both finite element analysis (FEA) and experimental data are used to validate the detection method.
ondition based maintenance, which includes both diagnosis and prognosis of faults, is a topic of growing interest for increasing the reliability of complex systems. Although many signal processing and machine learning techniques have been successfully applied to fault diagnosis, prognosis of faults and predicting the remaining useful life (RUL) of the components is a remaining challenge. One reason for this challenge is the lack of accurate physical models and labeled training data.
Direct torque control (DTC) strategies for Permanent magnet synchronous machines (PMSMs):
Direct torque control (DTC) is a powerful and widely adopted control strategy. During the past few years, many improved DTC control methods have been presented to tackle the problems of basic DTC, such as model predictive DTC (MPDTC), DTC with duty ratio modulation (DDTC) etc. The objective of this project is to conduct a comprehensive comparison between different DTC control strategies through simulations and experiments.
