Abstract
This paper presents the performance analysis of conventional and digital pulse width modulation (PWM) control scheme for speed control of electronically commuted trapezoidal Brushless dc (BLDC) motor. Both these methods follow the PWM speed control strategy, only difference is in the controller part. One drive system consist of conventional PI controller and the other have digital controller. This paper includes discussion on the implementation of both the techniques and their performances are compared. Co-simulation of closed loop control systems are modeled by using Xilinx Integrated Software Environment (ISE) simulator and MATLAB/Simulink. Experimental test setup is carried out using field-programmable gate arrays (FPGA). Simulation results and effectiveness of the methods are proved and validated by experimental results. The results of the two techniques are compared and conclusions are made.
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