Fuzzy Logic Controller Implementation for BLDC Drive Speed Control Using FOC Approach and SVPWM Based VSI Technique

Because of all of its advantages, the adoption of brushless DC motors has skyrocketed recently. It works quietly, is compact, has higher efficiency, needs less maintenance, and has many other advantages. When a motor is required to run at a certain speed, it's control is the key problem that has to be resolved. Sliding Mode Control (SMC), PID Controller, Model Predictive Control (MPC), and Adaptive Control are few of the several techniques employed. On the other hand as Fuzzy Logic Controller (FLC) is less expensive to design, is robust and doesn't require a detailed description of the system to operate; so it is used for controlling speed in this paper work. By ensuring that the magnetic fields of the stator and rotor are orthogonal to one another, a technique called field-oriented control (FOC), assures a smooth response which gives control over torque and flux. The inner loop, which measures current and outer loop which measures speed, makes up FOC's two loops. The outer speed loop is replaced from a PI controller to a FLC in the proposed work. In this article, PWM signals for a three phase inverter circuit is generated using space vector pulse width modulation (SVPWM). MATLAB and simulation were used to get the results.