Purdue University Graduate School
Purdue_University_Thesis_Template__final_2.pdf (16.73 MB)
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Modeling and Design of An Electrical Mower Deck Control System

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posted on 2020-03-04, 18:41 authored by Li FuLi Fu
With the development of the electric mower, an electrical control system is necessary to drive the blades and the traction wheel. This thesis introduces an electrical deck control system. The system includes a high-powered deck controller and a permanent magnet synchronous motor (PMSM). A PMSM control model has been built in MATLAB/Simulink to verify and support the physical design. Three different PWM modulation methods have also been implemented and compared in MATLAB/Simulink. Furthermore, a model for the distribution and features of grass was built based on sampling of Google Street View images. A six-step pulse width modulation (PWM) control strategy was realized using a PIC33 embedded microprocessor. An enhanced closed-loop control system design was implemented to keep a constant blade speed in order to cut grass efficiently.


Degree Type

  • Master of Science in Electrical and Computer Engineering


  • Electrical and Computer Engineering

Campus location

  • Indianapolis

Advisor/Supervisor/Committee Chair

Brian King/Lingxi Li/Lingxi Li`

Additional Committee Member 2

Stanley Chien

Additional Committee Member 3

Yaobin Chen