A zone of protection in electrical system protection refers to the area or segment of an electrical power system that is protected by a particular protective relay. The protective relay is designed to detect abnormal conditions, such as overcurrent, overvoltage, underfrequency, or faults, within its designated zone of protection and send a signal to the circuit breaker to isolate the faulty section of the system.

1. Academic Year 2023 - 24
S7 PROJECT WORK I
Second Review
PROJECT TITLE
DESIGN OF INNER PERMANENT MAGNET MOTOR FOR
TRACTION APPLICATION
BATCH MEMBERS
KARTHIKEYAN N (211EE513)
BARANIDHARAN P (211EE502)
JEEVANANTHAM M (211EE510)
GUIDE
MR. A. NANDHAKUMAR
Assistant Professor – III
Department of Electrical and Electronics Engineering
BIP PROJECT ID
24S7INT369
CATERGORY
INTERNAL

2. 06-09-2023 SECOND REVIEW PRESENTATION 2
PROJECT WORK PLAN
Determining Critical
parameters of motor
Stator sizing and
slot sizing
Rotor magnet volume
and dimension
calculation
Rotor modelling in
Flux software
Assembling motor
Flux density analysis in
FLUX software
Optimizing torque by
magnet and losses of
machine
Stator stack
modelling in Ansys
Maxwell 2D
Stator winding
calculation

3. SOFTWARE TOOLS
1. Ansys Maxwell 2D software – Stator modeling.
2. Ansys Maxwell 2D software - Rotor modelling and motor design.
3. Microsoft excel - multiple iterations.
06-09-2023 SECOND REVIEW PRESENTATION 3
EFFECTIVE UTILIZATION OF THE MODERN TOOL

4. SECOND REVIEW PRESENTATION
Gantt Chart
WEEK-1 WEEK-2 WEEK-3 WEEK-4 WEEK-5 WEEK-6 WEEK-7 WEEK-8 WEEEK-9 WEEK-10
T0 15
PROBLEM IDENTIFICATION
LITERATURE SURVE
IDENTIFY THE ROTOR
TOPOLOGY AND ROTOR TYPE
MAIN DIAMENSION
CALCULATIONS
STATOR WINDING DESIGN
CALCULATIONS
STATOR CONDUCTOR SIZE
STATOR SLOT DIAMENSION
CALCULATIONS
STATOR TEETH DIAMENSION
CALCULATION
STATOR CORE DIAMENSION
CALCULATION
DESIGN THE ANSYS
MAXWELL 2D
ROTOR DIAMENSION
CALCULATION AND DESIGN
THE ROTOR IN ANSYS
MAXWELL 2D SOFTWARE
06-09-2023 4

5. 5
MODULES
MAIN DIMENSION
1. Synchronous speed Ns = 50 r.p.s
2. Number of poles P = 10
3. Specific magnet loading Bav = 0.6 Tesla (or)
Wb/m^2
4. Specific electric loading ac = 11000 A/m
5. Winding factor Kw = 0.955
6. Output Co efficient Co = 69.333
7. KVA input Q = 1.1947 KVA (or) 1194.23 VA
8. Power P = 1KW
9. Length of core L = 0.26 (or) 26 mm
10. Diameter of the core D = 114.8 mm (or)
0.1148 m
11. Pole pitch τ = 0.0346 m (or) 34.67mm
12. Net iron length Li = 0.0234 m (or) 23.4
mm
13. Number of slots = 12
14. Number of magnet = 10
15. Alternative voltage Vac = 34.30V
16. Frequency f = 250Hz
17. Product D^2L = 0.3446 m^3
SECOND REVIEW PRESENTATION
06-09-2023 5

6. MODULES
STATOR DESIGN
1. Full load efficiency n = 0.93
2. Power factor cosθ = 0.9
3. Stator voltage per phase Es = 48 V
4. Flux per pole θm = 5.396*10^-04 Wb
5. Stator turns per phase Ts = 83.91
6. Taking slot per pole per phase qs = 0.4
7. Total stator slots Ss = 12
8. Stator slot pitch Yss = 29.58mm
9. Total stator conductors = 503.46
10. Stator conductor per slot Zss = 42
11. Coil span Cs = 1.2
12. Angle of chording α = 15⁰
13. Pitch factor Kp = 0.9914
14. Distribution factor Kd = 1
15. Stator winding factor Kws = 0.9914
SECOND REVIEW PRESENTATION
06-09-2023 6

7. MODULES
CONDUCTOR SIZE
1. Stator current per phase Is = 14.37 A
2. Stator line current = 24.89 A
3. Current density I = 7.2 A/mm^2
4. Area of stator conductor required = 2 mm^2
5. Diameter of conductor (base) required =
1.595
6. The nearest standard conductor has a base
diameter D = 1.605
7. Area of stator conductor used As = 2 mm^2
8. Current density for stator conductors Ss =
7.185 A/mm^2
SLOT DIMENSIONS
1. Space required for base conductors in
a slot = 84 mm^2
2. Taking a space factor of 0.5 for the
slots
3. Area of each slot = 168 mm^2
4. The maximum allowable flux density
is 1.5Wb/m^2
5. minimum width of stator teeth
(Wts)min = 12.81 mm
6. A tooth of constant width 7.5 mm is
taken
SECOND REVIEW PRESENTATION
06-09-2023 7

8. MODULES
7. Length of the airgap = 1 mm
8. Depth of slot dss = 11.5 mm
9. length of mean turn Lmts = 0.064 mm
STATOR TEETH
Flux density in stator teeth=1.5Wb/m^2
STATOR CORE
1. Flux in stator core = 2.698*10^-04 Wb
2. Flux density = 1.5Wb/m^2
3. Area of stator core Acs = 1.798*10^-04 Wb
4. Depth of stator core dcs = 7.68*10^-3 m
5. Taking the core depth dcs = 7.7 mm
6. flux density in stator core Bcs = 1.496
Wb/m^2
7. Outside diameter of stator laminations Do
= 153.2 mm
SECOND REVIEW PRESENTATION
06-09-2023 8

9. ADVANTAGES
 High efficiency: In this motor do not have brushes, so they are more efficient.
 Long lifespan: In this motor do not have brushes and less wastes energy, so they are last longer.
 Low noise and vibration: In this motor rotors design permanent magnet, so they are more
resistant to vibration.
 High power density: In this motor produce a lot of power in a relatively small package and it helps
to reduce the weight of the vehicle.
DISADVANTAGES
Higher cost: In this motor rotors designs to use permanent magnets, which are more expensive.
06-09-2023 SECOND REVIEW PRESENTATION 9
ADVANTAGES AND DISADVANTAGES

10. 06-09-2023 SECOND REVIEW PRESENTATION 10
COST BENEFIT ANALYSIS
COMPONENTS PRICE
ROTOR MAGNETS 82,775.90
STATOR WINDING 41,387.95
BEARING 8,277.59
CONTROLLER 1,65,551.80
TOTAL
2,97,993.24

11. Batch Member 1 : ( 211EE510 & JEEVANANTHAM M )
1. To study for literature survey.
2. Identify the rotor topology and rotor type.
3. To calculate the main dimension, Stator winding design, Stator conductor size,
Stator slot dimensions, Stator teeth dimension and Stator core dimensions.
4. To prepare Microsoft Excel sheet.
06-09-2023 SECOND REVIEW PRESENTATION 11
INDIVIDUAL CONTRIBUTIONS TO THE WORK

12. Batch Member 2 : ( 211EE502 & BARANIDHARAN P )
1. To study for Literature survey.
2. Survey for permanent magnet material and dimensions.
3. Survey for stator mathematical formulae.
06-09-2023 SECOND REVIEW PRESENTATION 12
INDIVIDUAL CONTRIBUTIONS TO THE WORK

13. Batch Member 3 : ( 211EE513 & KARTHIKEYAN N )
1. To study for literature survey.
2. Design stator part for use Ansys Maxwell 2D software.
06-09-2023 SECOND REVIEW PRESENTATION 13
INDIVIDUAL CONTRIBUTIONS TO THE WORK

14. Status on Partial Completion and Submission of Project Report
List of Documents to be Submitted
06-09-2023 SECOND REVIEW PRESENTATION 14
SL. No List of Documents Status ( Provide the drive
link of prepared
document)
1 Cover Page & Title Page (Both are in same format)
https://drive.google.com/file/d/
1AK5vsQsyHVh_lU1v-
d1IIaBnkYQMiF7F/view
2 Bonafide Certificate
https://drive.google.com/file/d/
137GUDikFTyBVv0k0H_UzX1yPT
hxNc3tO/view?usp=sharing
3 Declaration
https://drive.google.com/file/d/
1aUUsHSnBZ19EPkGWZqAsduXF
RO19sBY8/view?usp=sharing
4
Acknowledgement
https://drive.google.com/file/d/
1VRVIjHzKQKm0nuRMjbxPPKxm
VZkOQ7AE/view?usp=sharing

15. Status on Partial Completion and Submission of Project Report
List of Documents to be Submitted
06-09-2023 SECOND REVIEW PRESENTATION 15
SL.No List of Documents Status ( Provide the drive link
of prepared document)
5 Chapter I – Introduction
https://drive.google.com/file/d/
1gU3ATo3GCi-4NDr6Vr4U6-
wY_mT7B2G0/view?usp=sharing
6 Chapter 2 – Literature Survey
7 Chapters 3 - Objectives and Methodology
8
Chapters 4 - Proposed work modules (Chapter name can be
based on the work)

16. 16
Status on Partial Completion and Submission of Project Report
List of Documents to be Submitted
06-09-2023 SECOND REVIEW PRESENTATION 16
SL. No List of Documents Status ( Provide the drive link of
prepared document)
9 Chapter 5 - Results and Discussion
https://drive.google.com/file/d/
1aybwMzChZlGLIr4GLULWCFP
W9JFGUube/view?usp=sharing
10 Chapters 6 - Conclusions & Suggestions for Future work
https://docs.google.com/docum
ent/d/1LczGOIwwRwNr0Hi0PZ
0mgxjuyEbt02dR/edit
11
References
https://docs.google.com/docum
ent/d/13qjJ1-
CUs3YG2sztEFf71EJLxe49UqpW
/edit
12 Appendices

17. PUBLICATIONS (CONFERENCE / JOURNAL / PATENT)
06-09-2023 SECOND REVIEW PRESENTATION 17
SL.No Paper/Manuscript Title Status ( Provide the drive link of
prepared document)
1
2

18. ORIGINALITY SCORE
06-09-2023 SECOND REVIEW PRESENTATION 18
SL.No Tool name for checking originality score Status ( Provide the drive link of
prepared document)
1
2

19. As per IEEE Format.
[1] M. Bertoluzzo, G. Buja, R. K. Keshri and R. Menis, "Sinusoidal Versus Square-Wave Current Supply of PM
Brushless DC Drives: A Convenience Analysis," in IEEE Transactions on Industrial Electronics, vol. 62, no. 12, pp.
7339-7349, Dec. 2015, doi: 10.1109/TIE.2015.2455518.
[2] Mukherjee, P., Paitandi, S. & Sengupta, M. Comparative analytical and experimental study of fabricated
identical surface and interior permanent magnet BLDC motor prototypes. Sādhanā 45, 26 (2020).
https://doi.org/10.1007/s12046-019-1264-0.
[3] H. -K. Kim and J. Hur, "Dynamic Characteristic Analysis of Irreversible Demagnetization in SPM- and IPM-Type
BLDC Motors," in IEEE Transactions on Industry Applications, vol. 53, no. 2, pp. 982-990, March-April 2017, doi:
10.1109/TIA.2016.2619323.
[4] T. -Y. Lee, M. -K. Seo, Y. -J. Kim and S. -Y. Jung, "Motor Design and Characteristics Comparison of Outer-Rotor-
Type BLDC Motor and BLAC Motor Based on Numerical Analysis," in IEEE Transactions on Applied
Superconductivity, vol. 26, no. 4, pp. 1-6, June 2016, Art no. 5205506, doi: 10.1109/TASC.2016.2548079.
[5] Uldis Brakanskis, Janis Dirba, Ludmila Kukjane and Viesturs Drava, Riga Technical University, “Analysis of a
Permanent - Magnet Brushless DC Motor with Fixed Dimensions” Volume 27 (2010), doi:10.2478/v10144-010-
0025-z.
06-09-2023 SECOND REVIEW PRESENTATION 19
REFERENCES
( Journal Papers/ Books/ Website References )