# A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design

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## Abstract

**:**

## 1. Introduction

## 2. Symmetry Conditions and Degree of Unbalance in m-Phase Machine Windings

## 3. The Differential Leakage Factor in m-Phase Machine Windings

## 4. Results and Discussion

## 5. Finite-Element Validation

## 6. Conclusions

## Author Contributions

## Funding

## Conflicts of Interest

## References

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**Figure 1.**Graphical summary for the symmetrical, slightly asymmetrical and asymmetrical winding configurations.

**Figure 2.**Mapping, for $m=3\xf76$, of the (

**a**) symmetrical configurations and (

**b**) asymmetrical configurations with $D.U.\%$ > 5%.

**Figure 3.**Mapping of the leakage factors for all the proposed combinations: (

**a**) $m=3,\phantom{\rule{0.166667em}{0ex}}y=2$, (

**b**) $m=3,\phantom{\rule{0.166667em}{0ex}}y=1$, (

**c**) $m=5,\phantom{\rule{0.166667em}{0ex}}y=2$, (

**d**) $m=5,\phantom{\rule{0.166667em}{0ex}}y=1$, (

**e**) $m=6,\phantom{\rule{0.166667em}{0ex}}y=2$ and (

**f**) $m=6,\phantom{\rule{0.166667em}{0ex}}y=1$.

Parameter | Range of Variability |
---|---|

N | $20\xf760$ |

p | $1\xf715$ |

m | $3\xf76$ |

y | $1\xf72$ |

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**MDPI and ACS Style**

Caruso, M.; Di Tommaso, A.O.; Marignetti, F.; Miceli, R.
A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design. *Energies* **2020**, *13*, 5414.
https://doi.org/10.3390/en13205414

**AMA Style**

Caruso M, Di Tommaso AO, Marignetti F, Miceli R.
A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design. *Energies*. 2020; 13(20):5414.
https://doi.org/10.3390/en13205414

**Chicago/Turabian Style**

Caruso, Massimo, Antonino Oscar Di Tommaso, Fabrizio Marignetti, and Rosario Miceli.
2020. "A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design" *Energies* 13, no. 20: 5414.
https://doi.org/10.3390/en13205414