A winding function-based model of air-gap eccentricity in saturated induction motors

Ghoggal, Adel; Zouzou, S. E.; Sahraoui, Mohamed; Derghal, H.; Hadri-Hamida, A.

doi:10.1109/icelmach.2012.6350274

Cited by 15 publications

(22 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the saturation, the magnetic reluctance of the core increases, and could break a basic assumption of WFA, that is negligible reluctance of the core. A solution has been offered in [20]- [23], which permit the core reluctance to be zero but takes its effect into account by proper increase of the air gap length. Assuming that R i is the equivalent reluctance of the tooth i, then…”

Section: Adding Teeth Reluctance Impactmentioning

confidence: 99%

“…Also, a method for extending the work of [21] to eccentric SCIMs has been intended in [22]. A method for modeling SCIM with static eccentricity by including magnetic saturation effect has been proposed in [23], which permits variable saturation factor. As magnetic saturation essentially occurs within the teeth, individual tooth saturation is estimated and included in the modeling and simulation process in this paper.…”

Section: Introductionmentioning

confidence: 99%

“…However, improving precision of basic WFA by removing some facilitative assumptions is concern of researchers. Therefore, some techniques have been introduced to include skewing effect [8], [17], slotting effect [18], [19], and magnetic saturation effect [20]- [23] to the basic WFA.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling Eccentric Squirrel-Cage Induction Motors With Slotting Effect and Saturable Teeth Reluctances

Ojaghi

Nasiri

2014

IEEE Trans. Energy Convers.

View full text Add to dashboard Cite

This paper mainly proposes a general model of eccentric squirrel-cage induction motor (SCIM), which includes the stator and rotor slotting effect as well as their individual tooth reluctance effect. Considering open slots on the stator and rotor, their rather exact shape is included in the machine's air gap function. Then, the resulting air gap function is used for evaluating various inductances of SCIM by the winding function approach (WFA). A simple general technique is used for adding eccentricity effect, including static, dynamic, and mixed eccentricities, on the air gap function and, therefore, on the inductances. Using a novel technique, saturable reluctance of each tooth of the stator and rotor is evaluated in every simulation step. Then, these reluctances are added to the model by equivalent increase of the air gap in front of the teeth; this reflects the teeth saturable reluctance effect on the inductances of the SCIM. In effect, dynamic simulation of SCIM with all aforementioned effects using WFA becomes possible. Simulation results compared to corresponding experimental results show accuracy and exactness of the proposed model.

show abstract

Section: Adding Teeth Reluctance Impactmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling Eccentric Squirrel-Cage Induction Motors With Slotting Effect and Saturable Teeth Reluctances

Ojaghi

Nasiri

2014

IEEE Trans. Energy Convers.

View full text Add to dashboard Cite

show abstract

“…Different eccentricities in induction machines were documented previously [7,8,[13][14][15][16][17][18]. In reality, the most probable case is the inclined air gap eccentricity or rotor misalignment fault.…”

Section: Introductionmentioning

confidence: 86%

“…Mean radius function depends on the geometry of the air gap. In many studies, this function has been considered to be constant [7,8,[13][14][15][16][17][18][19][20][21][22]. Fig.…”

Section: Mixed Misalignment Modelingmentioning

confidence: 99%

A Modified Model of Squirrel Cage Induction Machine Under General Rotor Misalignment Fault

Akbari¹

2013

PIER B

View full text Add to dashboard Cite

Abstract-A great deal of researches have so far been conducted on the analysis of eccentricity in induction machines. However, they mostly consider radial non-uniformity and neglect non-uniformity in the axial direction, but in practice, the axial non-uniformity due to rotor misalignment faults is quite common. This paper presents a modified model of a three-phase squirrel cage induction machine under different rotor misalignment conditions. For this purpose, general expressions for air gap and mean radius of induction machine, considering axial non-uniformity, have been developed. The proposed model is able to calculate the time varying inductances versus rotor angle for three-phase squirrel cage induction machines under general rotor misalignment, including static, dynamic and mixed rotor misalignment in the frame of a single program. Simulation results were verified by the experimental ones.

show abstract

Electromagnetic Review of Rotor/Stator Misalignment in Permanent Magnet Axial Flux Motor

Młot¹,

Malloy²,

Korkosz

et al. 2017

Lecture Notes in Electrical Engineering

View full text Add to dashboard Cite

A winding function-based model of air-gap eccentricity in saturated induction motors

Cited by 15 publications

References 12 publications

Modeling Eccentric Squirrel-Cage Induction Motors With Slotting Effect and Saturable Teeth Reluctances

Modeling Eccentric Squirrel-Cage Induction Motors With Slotting Effect and Saturable Teeth Reluctances

A Modified Model of Squirrel Cage Induction Machine Under General Rotor Misalignment Fault

Electromagnetic Review of Rotor/Stator Misalignment in Permanent Magnet Axial Flux Motor

Contact Info

Product

Resources

About