Real-time digital simulation of electrical machines and drives is an efficient approach to evaluate the true behavior of newly designed machines and controllers before applying them in a real system. State-of-the-art real-time digital simulators aim to offer a precise replica for different parts of an electrical drive. By the aid of these powerful simulators and hardware-in-the-loop (HIL) simulation, design engineers are able to test their new
controllers or machines against a virtual motor drive which has been previously modeled and tested off-line. Interaction between different parts of the electrical drive, especially under hazardous and abnormal conditions, can then be studied in a cost-effective manner.
Although many studies about the optimized models of power electronic drives and digital controllers for real-time simulation have been done, the real-time models of electrical machines are still limited to the lumped parameter electric circuit models. This is mainly
due to the complexity of a detailed electrical machine model which makes it computationally expensive.
In this thesis geometrical real-time permeance network models (PNMs) of induction machines are developed which can accommodate the local phenomena inside an electric
machine such as saturation and slotting. For this purpose, numerical methods inside the model are optimized to reduce the computation time. Novel nonlinear solution algorithms
are also developed to address the problem of real-time simulation of nonlinear systems. Next, the proposed model is linked with other parts of an electric drive to develop a PNM-based real-time induction motor drive. A comparison of the results obtained through real-time simulation and experiment shows their agreement. / Power Engineering and Power Electronics
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:AEU.10048/1948 |
| Date | 11 1900 |
| Creators | Asghari, Babak |
| Contributors | Dr. Venkata Dinavahi (Electrical and Computer Engineering), Dr. Venkata Dinavahi (Electrical and Computer Engineering), Dr. Wilsun Xu (Electrical and Computer Engineering), Dr. John Salmon (Electrical and Computer Engineering), Dr. Behrouz Nowrouzian (Electrical and Computer Engineering), Dr. Walied Moussa (Mechanical Engineering), Dr. Subhasis Nandi (Electrical and Computer Engineering, University of Victoria) |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 2552082 bytes, application/pdf |
| Relation | B. Asghari, V. Dinavahi, M. Rioual, J. A. Martinez, and R. Iravani, “Interfacing techniques for electromagnetic field and circuit simulation programs”, IEEE Trans. on Power Delivery, Vol. 24, No. 2, pp. 939-950, April 2009., B. Asghari and V. Dinavahi, “Permeance network based realtime induction machine model”, in Proc. International Conference on Power Systems Transients (IPST2009), Kyoto, Japan, June 2009, pp. 1-6., B. Asghari and V. Dinavahi, “Real-time nonlinear transient simulation based on optimized transmission line modeling”, IEEE Trans. on Power Systems, Vol. 26, No. 2, pp. 699-709, May 2011., B. Asghari and V. Dinavahi, “Novel transmission line modeling method for nonlinear permeance network based simulation of induction machines ”, to appear in IEEE Trans. on Magnetics, pp. 1-9, (accepted March 04, 2011). |
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