Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
Control of Ferrite Based Permanent Magnet
Motor for Electric-Assist Campus Bicycle
Vikas Kurariya, Roll No 133074003
Guided By Prof B.G. Fernandes.
Department of Electrical Engineering
IIT Bombay
April 30, 2015
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
Outline
1 Introduction
2 System Configuration and Specification
System Configuration and Specification
3 Control Strategy and simulation
V/Hz Control Implementation
4 MATLAB Simulink Implementation
Simulation Results
5 Hardware
Proto 1.0
Proto 2.0
Pout Vs Efficiency
6 References
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
Introduction
Ferrite Based Permanent Magnet Synchronous motor.
Planetary Geared motor due to higher efficiency than gear less
motor. [4].
V/Hz control is chosen due to ease on implementation.
Rotor position measurement and estimation using single hall
sensor.
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
System Configuration and Specification
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
System Configuration and Specification
Specification
Table: Motor Specification[4]
Nominal Torque @1000 RPM 2.4 N − m
Table: Specification of bicycle [4] DC link Voltage 22.2 V
rms line voltage 12.6 V
Bicyle and rider mass 85 kg
Coefficient of rolling friction 0.004 rms phase current 12.1 A
Aerodynamic drag coefficient 1.0 Copper Loss 13.98 W
Bicycle frontal area 0.4 sq.mm
Rear Wheel radius 0.33 m Core Loss 5.29 W
Efficiency 91.33 %
Table: Lithium Polymer(Lipo) Battery Specification Air gap Length 0.6 mm
Nominal Voltage 22.2 V Resistance / phase 0.031 Ω
Maximum Voltage 25.2 V Number of turns / phase 96
Minimum Voltage 20 V
No of Cells 6 Number of poles (P) 20
Capacity 4000 mAH Rotor outer diameter 150 mm
Maximum discharge current 80 A
Stator outer diameter 132.6 mm
Stator inner diameter 76 mm
Stack Length 20 mm
Magnet Thickness 6 mm
Magnet remnant flux density 0.4 T
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
V/Hz Control Implementation
V/Hz Control Implementation
Figure: V/Hz Control
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
MATLAB Simulink Implementation
Figure: V/Hz Control
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
Simulation Results
Simulation Result
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
Proto 1.0
Proto 1.0
Figure: current at 850 RPM 1.5N-m
Figure: PCB of Motor Drive
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
Proto 2.0
Proto 2.0
Figure: PCB of Motor Drive Figure: current at 1000 RPM 1.8N-m
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
Pout Vs Efficiency
Pout Vs Efficiency
Figure: Proto 1.0 Figure: Proto 2.0
Introduction System Configuration and Specification Control Strategy and simulation MATLAB Simulink Implementation Hardware References
References
A. V. Gumaste and G. Slemon, "Steady-state analysis of a permanent magnet
synchronous motor drive with voltage-source inverter," Industry Applications,
IEEE Transactions on, vol. IA-17, no. 2, pp. 143-151, March 1981.
S.-Z. Park, Y.-K. Kim, C.-H. Song, J.-W. Lee, and H.-S. Mok, "Operation method
of electric bicycle using change of bldc operation mode and pmsm operation
mode," in Power Electronics and ECCE Asia (ICPE ECCE), 2011 IEEE 8th
International Conference on, May 2011, pp. 2529-2536. [4]
E. Lomonova, A. J. A. Vandenput, J. Rubacek, B. d’Herripon, and G. Roovers,
"Development of an improved electrically assisted bicycle," in Industry
Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of
the, vol. 1, Oct 2002, pp. 384-389 vol.1.
Suhas Bhat "Design of An Electric-Assist Bicycle"Master of Technology thesis ,
IIT Bombay
R. Krishnan, Permanent Magnet Synchronous and Brushless DC Motor Drives.
CRC Press, USA, 2009.
IRAM136-3023B datasheet and manual, International rectifiers.
Microchip dsPIC30F4011/4012 data sheet, Michrochip.
