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Transient analysis and stability limits for synchronous reluctance motors considering saturation effects

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Abstract
This paper investigates the influence of the magnetic saturation on the performance of Synchronous Reluctance Motors (SynRMs) at transient operating conditions. In addition, the stability limits for the SynRM are studied with a more accurate method. The saturation, cross-saturation and position effects on both direct (d) and quadrature (q) axis flux linkages are considered. A Finite Element Method (FEM) is used to obtain an accurate representation for the dq-axis flux linkages relations. In order to reduce the calculation time of the finite element analysis, a look-up table (LUT) for the dq-axis flux linkages is generated based on the FEM to be used for simulating the SynRM characteristics. It is found that the magnetic saturation in the adopted motor results in an enlarged region of stable operation of the SynRM. The torque increases by about 200 % compared with the unsaturated case, which proves that it makes no sense to model this type of motor without saturation. The results show the importance of including the saturation factors on the performance of the SynRM and its stability limits. Hence, the magnetic saturation effect will not only affect the stability of the motor but also on the whole drive system.
Keywords
MAGNETIC SATURATION, Stability Limits, Synchronous Reluctance Motor., FEM, Magnetic Saturation, CROSS SATURATION, MACHINE

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Chicago
Ibrahim, Mohamed Nabil Fathy, Essam Rashad, and Peter Sergeant. 2015. “Transient Analysis and Stability Limits for Synchronous Reluctance Motors Considering Saturation Effects.” In 2015 18TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS), 1812–1816.
APA
Ibrahim, M. N. F., Rashad, E., & Sergeant, P. (2015). Transient analysis and stability limits for synchronous reluctance motors considering saturation effects. 2015 18TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) (pp. 1812–1816). Presented at the 18th International Conference on Electrical Machines and Systems (ICEMS).
Vancouver
1.
Ibrahim MNF, Rashad E, Sergeant P. Transient analysis and stability limits for synchronous reluctance motors considering saturation effects. 2015 18TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS). 2015. p. 1812–6.
MLA
Ibrahim, Mohamed Nabil Fathy, Essam Rashad, and Peter Sergeant. “Transient Analysis and Stability Limits for Synchronous Reluctance Motors Considering Saturation Effects.” 2015 18TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS). 2015. 1812–1816. Print.
@inproceedings{6971968,
  abstract     = {This paper investigates the influence of the magnetic saturation on the performance of Synchronous Reluctance Motors (SynRMs) at transient operating conditions. In addition, the stability limits for the SynRM are studied with a more accurate method. The saturation, cross-saturation and position effects on both direct (d) and quadrature (q) axis flux linkages are considered. A Finite Element Method (FEM) is used to obtain an accurate representation for the dq-axis flux linkages relations. In order to reduce the calculation time of the finite element analysis, a look-up table (LUT) for the dq-axis flux linkages is generated based on the FEM to be used for simulating the SynRM characteristics. It is found that the magnetic saturation in the adopted motor results in an enlarged region of stable operation of the SynRM. The torque increases by about 200 \% compared with the unsaturated case, which proves that it makes no sense to model this type of motor without saturation. The results show the importance of including the saturation factors on the performance of the SynRM and its stability limits. Hence, the magnetic saturation effect will not only affect the stability of the motor but also on the whole drive system.},
  author       = {Ibrahim, Mohamed Nabil Fathy and Rashad, Essam and Sergeant, Peter},
  booktitle    = {2015 18TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS)},
  isbn         = {978-1-4799-8805-1},
  keyword      = {MAGNETIC SATURATION,Stability Limits,Synchronous Reluctance Motor.,FEM,Magnetic Saturation,CROSS SATURATION,MACHINE},
  language     = {eng},
  location     = {Pattaya, Thailand},
  pages        = {1812--1816},
  title        = {Transient analysis and stability limits for synchronous reluctance motors considering saturation effects},
  year         = {2015},
}

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