PID Controller Tuning using Salp Swarm Optimization for BLDC Motor Control Shreyash Salekar 1 and Surendra Bhosale 2 1-2 Veermata Jijabai Technological Institute/Electrical Engineering Department, Matunga, Mumbai- 19, India Email: sasalekar_m20@ee.vjti.ac.in, sjbhosale@ee.vjti.ac.in Abstract—Brushless Direct Current Motor (BLDC) is a unique class of machine with significant advancements in its control drive. This is owing to the fact that BLDC has a wide range of applications in various fields, including aerospace, robotics, medicine, and others, due to its distinctive construction and features, such as its compact size, high efficiency, and broad range of speed control. Additionally, since the BLDC is a non-linear system, uncertainty occurs while it is in operation. Controlling BLDC becomes significant since it also contributes to several critical applications, such as electric car traction and aerospace. The proposed research uses a novel meta-heuristic optimization technique called the Salp Swarm Algorithm to achieve the goal of decreasing the transient as well as steady state performance of the BLDC machine (SSA). SSA is a recently created nature-based mimic algorithm that is widely employed in a variety of optimization problems in numerous disciplines. The PID Controller's K p , K i , and K d coefficients are optimised in this project work using SSA. Three different conditions 2000 rpm, 3000 rpm, and 2000 rpm with load were used for the research. Where outcomes are discovered to be satisfactorily good. In all the cases Maximum peak overshoot is 0% with average reduction in transient period is 48.90 %. Also significantly good reduction in Electromagnetic Torque and Stator Currents are observed. Finally, it is successful to apply SSA to tune the PID controller and obtain optimum values for BLDC motor control. Index Terms— Salp Swarm optimization (SSA), PID Control, BLDC Motor. I. INTRODUCTION Electric automobiles Technology advancements in electrical rotating machines and, on the other hand, heightened severe worry about pollution management have given them the moniker of future mobility. Industry is just recently becoming an integral part of the global economy. Due to traditional fuel usage and consequent CO2 emissions, traditional vehicles pollute the environment while electric vehicles (EVs) produce zero emissions. Electrical vehicles use a variety of specific electrical machines as their primary form of propulsion, although Brushless Direct Current (BLDC) is the most preferred option due to its design characteristics. Motors used in automotive applications need to have characteristics such a strong starting torque, a high power density, and a high efficiency. All of these attributes may very well be found in BLDC motors. Due to BLDC motors' greater torque-to-weight ratio, designers may reduce the vehicle's weight without sacrificing the necessary torque. Since the elimination of brushes, there is no friction and no energy loss, resulting in greater efficiency. Because there are no brushes, the motor operates quietly. Therefore, the enhancement in BLDC machine performance has paramount significance. Grenze ID: 01.GIJET.9.1.11_1 © Grenze Scientific Society, 2023 Grenze International Journal of Engineering and Technology, Jan Issue