DYNAMIC ANALYSIS OF AC MACHINES USING COMBINED FEM-CIRCUIT MODELING
Mohamed Sayed Ahmed Shalaby;
Abstract
Key Words: Modelling of Electric Machines – coupled FEM-Circuit model – Cross magnetic saturation – Synchronous Reluctance Motor – Self-excited Induction Generator
Summary:
In this thesis, accurate, simple and fast model of AC machines is presented. The proposed model can describe and explore the machine’s behavior and performance accurately. The proposed models are categorized as coupled FEM-Circuit modeling approaches. A so called combined FEM-Circuit (or staged FEM-Circuit) model is proposed to investigate the model of SynRM including effect of cross-magnetic saturation. In addition, a coupled FEM-Circuit model is introduced to simulate the performance and dynamic behavior of a squirrel cage induction machine. Also, a simple and systematic design technique is presented to explore and select the optimum design parameters of a SynRM that can achieve optimal pullout torque and minimum ripples, and to study their effect on the motor performance. In addition, the evaluation of a proposed model of self-excited induction generator (SEIG) including the effect of inductance saturation and its rate of change is investigated. The model is validated experimentally using a test rig of 7.5 kW SEIG.
Summary:
In this thesis, accurate, simple and fast model of AC machines is presented. The proposed model can describe and explore the machine’s behavior and performance accurately. The proposed models are categorized as coupled FEM-Circuit modeling approaches. A so called combined FEM-Circuit (or staged FEM-Circuit) model is proposed to investigate the model of SynRM including effect of cross-magnetic saturation. In addition, a coupled FEM-Circuit model is introduced to simulate the performance and dynamic behavior of a squirrel cage induction machine. Also, a simple and systematic design technique is presented to explore and select the optimum design parameters of a SynRM that can achieve optimal pullout torque and minimum ripples, and to study their effect on the motor performance. In addition, the evaluation of a proposed model of self-excited induction generator (SEIG) including the effect of inductance saturation and its rate of change is investigated. The model is validated experimentally using a test rig of 7.5 kW SEIG.
Other data
| Title | DYNAMIC ANALYSIS OF AC MACHINES USING COMBINED FEM-CIRCUIT MODELING | Other Titles | التحليل الديناميكى لآلات التيار المتردد باستخدام نموذج تجميعى من العناصر المحددة والدوائر الكهربية | Authors | Mohamed Sayed Ahmed Shalaby | Issue Date | 2017 |
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